WO2011129377A1 - ポリカーボネートジオール及びその製造法、並びにそれを用いたポリウレタン及び活性エネルギー線硬化性重合体組成物 - Google Patents
ポリカーボネートジオール及びその製造法、並びにそれを用いたポリウレタン及び活性エネルギー線硬化性重合体組成物 Download PDFInfo
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- WO2011129377A1 WO2011129377A1 PCT/JP2011/059206 JP2011059206W WO2011129377A1 WO 2011129377 A1 WO2011129377 A1 WO 2011129377A1 JP 2011059206 W JP2011059206 W JP 2011059206W WO 2011129377 A1 WO2011129377 A1 WO 2011129377A1
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- WIPO (PCT)
- Prior art keywords
- polycarbonate diol
- meth
- diol
- molecular weight
- polyurethane
- Prior art date
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- C08G64/0208—Aliphatic polycarbonates saturated
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/16—Aliphatic-aromatic or araliphatic polycarbonates
- C08G64/1608—Aliphatic-aromatic or araliphatic polycarbonates saturated
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/30—General preparatory processes using carbonates
- C08G64/302—General preparatory processes using carbonates and cyclic ethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/30—General preparatory processes using carbonates
- C08G64/305—General preparatory processes using carbonates and alcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/20—Materials or treatment for tissue regeneration for reconstruction of the heart, e.g. heart valves
Definitions
- the present invention relates to a novel polycarbonate diol.
- the present invention also relates to a polycarbonate-based polyurethane which is produced from this polycarbonate diol as a raw material and is useful for paints, coating agents, synthetic / artificial leathers, high-functional elastomers and the like having an excellent balance of physical properties.
- the present invention also relates to an active energy ray-curable polymer composition containing a urethane (meth) acrylate oligomer, a cured film obtained by irradiating the composition with active energy rays, and a laminate using the same.
- raw materials for the main soft segment parts of polyurethane resins produced on an industrial scale are ether types typified by polytetramethylene glycol, ester types typified by adipate esters, and polylactone types typified by polycaprolactone. And a polycarbonate type represented by polycarbonate diol (Non-patent Document 1).
- the ether type is said to be inferior in heat resistance and light resistance although it is excellent in hydrolysis resistance, flexibility and stretchability.
- the ester type is improved in heat resistance and weather resistance, but the ester portion has low hydrolysis resistance and cannot be used depending on the application.
- the polylactone type is a grade that is superior in hydrolysis resistance as compared with the ester type, but the hydrolysis cannot be completely suppressed because of the ester group.
- polycarbonate-type polyurethane using polycarbonate diol is considered the best durability grade in terms of heat resistance and hydrolysis resistance.
- Durable film, artificial leather for automobiles and furniture, paint (especially water-based paint) Widely used as coating agent and adhesive.
- polycarbonate diols that are currently commercially available are mainly polycarbonate diols synthesized from 1,6-hexanediol, and polyurethanes produced using this polycarbonate diol have chain segments in the soft segment. There was a drawback that it was flexible and the surface was physically damaged. For this reason, when the obtained polyurethane was used as a paint or a coating agent, there was a problem that it was easily damaged by physical factors and the appearance was deteriorated.
- Patent Document 1 a polycarbonate diol obtained from 1,4-cyclohexanedimethanol (Patent Document 1) as a polycarbonate diol that gives a more rigid polyurethane is also known as 1,4-cyclohexanedimethanol and 1 Polycarbonate diol obtained from 1,6-hexanediol has been proposed (Patent Document 2).
- 1,4-cyclohexanedimethanol is a mixture of a cis isomer and a trans isomer due to restrictions on the production method.
- the mixing ratio is changed, the synthesized polycarbonate diol itself, and further, the properties of the derived polyurethane are deteriorated. Because it changes, there is a problem that quality control is difficult.
- polycarbonate diol obtained by using a combination of 1,4-cyclohexanedimethanol and 1,6-hexanediol has a high hydrophobicity due to its structure, and has recently attracted particular attention from the viewpoint of reducing environmental impact.
- 1,4-cyclohexanedimethanol has a cyclohexane ring as a ring structure in the molecule, the cyclohexane ring is a flexible ring structure, and a hydroxyl group is bonded to the cyclohexane ring via a methylene group. Therefore, the molecular structure is not so rigid, and the hardness of the resulting polyurethane is not always sufficient.
- 1,4-cyclohexanedimethanol is derived from fossil resources, and incinerating a polymer obtained from this as a raw material has a problem of promoting global warming.
- isosorbide is a plant-derived diol obtained by dehydrating cyclization of sorbitol, which is a natural sugar, and is a compound with a small environmental burden even when incinerated.
- sorbitol which is a natural sugar
- Patent Document 3 As a monomer source for obtaining a polycarbonate having a small influence on global warming, its utilization has recently been studied (for example, Patent Document 3).
- Patent Document 3 a copolymer polycarbonate can be produced from a diol mixture containing isosorbide, and a polycarbonate having both handling properties and rigid physical properties is obtained.
- paints that are cured by irradiation with energy rays have been developed and put into practical use from the viewpoint of improving workability and working environment.
- examples of such a paint include urethane acrylate obtained by reacting organic polyisocyanate, polycarbonate polyol having an alicyclic structure, and (meth) acrylate having one or more hydroxyl groups in the molecule.
- An energy ray-curable polymer composition is known (for example, see Patent Document 4).
- Such paints are required to have various characteristics depending on the application, for example.
- the present invention is to develop a polyurethane that is hard, physically resistant to damage, and has no design restrictions for introducing a water-soluble structure during polyurethane production, and therefore, designing a raw material polycarbonate diol capable of obtaining these characteristics.
- Manufacturing is a first problem.
- the second problem is to design and manufacture raw material polycarbonate diol for obtaining homogeneous polyurethane.
- a third object is to design and manufacture a raw material polycarbonate diol for obtaining a polyurethane having the designed characteristics.
- Another object of the present invention is to establish a method for producing the polycarbonate diol and polyurethane on an industrial scale.
- a fifth object of the present invention is to provide an active energy ray-curable polymer composition from which a cured film having excellent stain resistance and hardness can be obtained.
- a sixth object is to provide an active energy ray-curable polymer composition excellent in applicability.
- the present inventors have obtained a polycarbonate diol obtained by reacting a specific compound in the presence of a catalyst, which is contained in the polycarbonate diol.
- the present inventors have found that a polycarbonate diol having a predetermined amount of catalyst and a polyurethane produced using the polycarbonate diol can solve the first, second and fourth problems, and have reached the present invention.
- the molecular chain contains a specific repeating unit, and the ratio of the specific repeating unit at the end of the molecular chain is The inventors have found that a specific amount of polycarbonate diol and polyurethane produced using this polycarbonate diol can solve the first, third and fourth problems, and have reached the present invention.
- active energy ray-curable heavy weight containing a urethane (meth) acrylate oligomer that is a reaction product of a raw material containing polycarbonate diol This is a coalesced composition, and the coating properties can be improved by setting the average number of hydroxyl groups per molecule of the polycarbonate diol to a predetermined amount, which is conventionally known when cured to form a cured film.
- the present inventors have found that the stain resistance and hardness are particularly superior to those of the present invention.
- the first aspect of the present invention resides in the following [1] to [44].
- the number average molecular weight is 250 or more and 5,000 or less including a repeating unit represented by the following formula (A) and a repeating unit represented by the following formula (B) in at least a part of the molecular chain.
- the polycarbonate diol according to any one of [1] to [3], wherein the terminal (A) ratio represented by the following formula (I) is 1.2 or more and 1.9 or less.
- X represents a divalent group having 1 to 15 carbon atoms which may contain a hetero atom.
- the number average molecular weight is 250 or more and 5,000 or less including the repeating unit represented by the formula (A) and the repeating unit represented by the formula (B) in at least a part of the molecular chain. And a polycarbonate diol having a terminal (A) ratio represented by the formula (I) of 1.2 or more and 1.9 or less.
- a method for producing a polycarbonate diol which comprises reacting in the presence of an exchange catalyst to produce a polycarbonate diol, wherein the maximum temperature in the reaction is less than 180 ° C.
- the weight reduction rate is 2% or less in a friction test (500 reciprocations) at a load of 4.9 N performed according to JIS L0849 [22] to [24]
- the polyurethane according to any one of [24].
- Urethane which is a raw material reaction product containing the polycarbonate diol, polyisocyanate, and hydroxyalkyl (meth) acrylate according to any one of [1] to [11] and [15] to [21]
- the active energy ray-curable polymer composition containing a urethane (meth) acrylate oligomer which is a reaction product of a raw material containing polyisocyanate, polycarbonate diol, and hydroxyalkyl (meth) acrylate
- the polycarbonate diol contains 10% by mass or more of the repeating unit represented by the formula (A), the number average molecular weight of the polycarbonate diol is 500 or more and 5,000 or less, and the average number of hydroxyl groups per molecule is 2.2.
- An active energy ray-curable polymer composition characterized by:
- the active energy ray-curable polymer composition containing a urethane (meth) acrylate oligomer that is a reaction product of a raw material containing polyisocyanate, polycarbonate diol, and hydroxyalkyl (meth) acrylate
- the polycarbonate diol comprises (i) at least one diol selected from isosorbide, isomannide, and isoidide, (ii) a diol having 1 to 15 carbon atoms that may contain a hetero atom, and (iii) a carbonic acid diester.
- the urethane (meth) acrylate-based oligomer has a structure obtained by urethanating a urethane prepolymer having an isocyanate group at a terminal and the hydroxyalkyl (meth) acrylate,
- the active energy ray-curable polymer composition according to any one of [34] to [41], wherein the urethane prepolymer is obtained by urethanation of the polyisocyanate and the polycarbonate diol.
- the polyurethane produced using the polycarbonate diol has a hardness and a hardness higher than those of polyurethanes made from 1,6-hexanediol-derived polycarbonate diol, which has been conventionally used. It has the feature of excellent abrasion resistance, and is suitable for applications that require durability against physical external factors such as paints, coating agents, adhesives, etc., and is extremely useful industrially.
- the active energy ray-curable polymer composition according to the second aspect of the present invention contains a urethane (meth) acrylate oligomer containing the above-mentioned specific polycarbonate diol as a raw material, it has excellent stain resistance. And a cured film having hardness can be formed.
- (meth) acrylate is a general term for acrylate and methacrylate, and means one or both of acrylate and methacrylate. The same applies to the (meth) acryloyl group and (meth) acrylic acid.
- “ ⁇ ” is used to mean that the numerical values described before and after it are included as a lower limit value and an upper limit value.
- the polycarbonate diol according to the first aspect of the present invention is preferably produced using a diol and a carbonic acid diester as raw materials and using a transesterification catalyst.
- the diol include isosorbide and at least one of its stereoisomers, isomannide and isoidide, and a diol having 1 to 15 carbon atoms which may contain a hetero atom.
- the carbonic acid diester include alkyl carbonate, aryl carbonate, and alkylene carbonate.
- transesterification catalyst examples include simple metals that are generally considered to have transesterification ability, and metal compounds such as hydroxides and salts. Preferred examples include acetates, carbonates and hydroxides of Group 1 metals of the periodic table and Group 2 metals of the periodic table, and catalysts using Group 2 metals of the periodic table are more preferred.
- the catalyst used during the production may remain, but the subsequent polyurethane-forming reaction may be accelerated more than expected, and it is preferable that the catalyst does not remain.
- the amount of catalyst remaining in the polycarbonate diol is preferably 100 ppm by weight or less as the content in terms of catalyst metal.
- the lower limit of the remaining amount of the catalyst is better, but it may be 0.1 ppm by weight or more from the viewpoint of simplifying the production method.
- the polycarbonate diol according to the first aspect of the present invention has a repeating unit represented by the following formula (A) in at least a part of the molecular chain (hereinafter referred to as “structure (A)”.
- the number average molecular weight is 250 or more, more preferably 500 or more and 5,000 or less.
- the polycarbonate diol according to the first aspect of the present invention preferably has the structure (A) in at least a part of the molecular chain, and may have another structure in the molecular chain.
- the content of the other structure only needs to be within a range in which the effect of the other structure can be obtained in addition to the effect of the present invention, and can be appropriately determined according to the other structure.
- structure (B) As the other structure, for example, a structure represented by the following formula (B) (hereinafter, a structure represented by the formula (B) may be referred to as “structure (B)”) may be included. .
- X represents a divalent group having 1 to 15 carbon atoms which may contain a hetero atom.
- the first structural feature of the structure (A) according to the first aspect of the present invention lies in the fact that it is a rigid structure with small flexibility in which two furan rings are condensed.
- rigidity is expressed in the portion of the structure (A).
- the second feature is that the carbonate group is directly bonded to the condensed furan ring without a free-rotatable group such as a methylene group. Therefore, the degree of freedom is low in this part, and it is extremely rigid. It is in the structure.
- two high-density and hydrophilic furan rings are arranged. For this reason, it has an affinity with a polar group such as a water molecule and has a high hydrophilic property. .
- the ratio of the number of terminals of the molecular chain being an alkyloxy group or an aryloxy group is 5% or less with respect to the total number of terminals of the molecular chain.
- the ratio of the number of terminals of the molecular chain being an alkyloxy group or an aryloxy group is 5% or less with respect to the total number of terminals of the molecular chain and 95% or more of both ends of the molecular chain.
- the hydroxyl group can react with the polyisocyanate.
- the structure (A) may be continuous in the polycarbonate diol, may exist at regular intervals, or may be unevenly distributed.
- the content of the structure (A) in the polycarbonate diol is 10% by mass or more, preferably 20% by mass or more, and preferably 40% by mass or more from the viewpoints of rigidity and hydrophilicity described above. More preferred.
- ⁇ Structure (B) ⁇ X in the formula (B) representing the structure (B) is a divalent group having 1 to 15 carbon atoms which may contain a heteroatom, and any of a linear or branched chain group, a cyclic group, A structure may be included.
- the number of carbon atoms as an element constituting X is preferably 10 or less, and more preferably 6 or less.
- the hetero atom which may be contained in X is, for example, an oxygen atom, a sulfur atom, a nitrogen atom or the like, and is preferably an oxygen atom from the viewpoint of chemical stability.
- group of X include groups generated when the compounds exemplified below are used as the compounds giving the structure (B) during the production of the polycarbonate diol according to the first aspect of the present invention. Is a group obtained by reacting a preferred compound among the following exemplified compounds.
- the structure (B) may be continuous in the polycarbonate diol, may exist at regular intervals, or may be unevenly distributed.
- the content of the structure (B) in the polycarbonate diol is preferably 80% by mass or less from the viewpoint of improving the handling property by disturbing the regularity of the polycarbonate diol and lowering the melting point and the viscosity. , 60% by mass or less, more preferably 40% by mass or less, and particularly preferably 20% by mass or less.
- the ratio of the structure (A) to the structure (B) constituting the molecular chain of the polycarbonate diol according to the first aspect of the present invention (hereinafter sometimes referred to as “(A) / (B) ratio”) is usually.
- structure (A) / structure (B) 100/0 to 1/99.
- the ratio (A) / (B) is preferably 100/0 to 10/90, more preferably 80/20 to 20/80, and more preferably 70/30 to 30/70. Further preferred.
- the ratio of the structure (A) / the structure (B) at the molecular chain terminal that is, the structure represented by the formula (A) and a hydrogen atom, an alkyloxy group, or an aryloxy
- the ratio (hereinafter, this ratio may be referred to as “terminal (A) / (B) ratio”) is preferably 95/5 to 20/80, particularly 90/10 to 30/70. More preferably, it is more preferably 80/20 to 40/60. If the structure (B) part is larger than this range at the end of the molecular chain, the designed characteristics such as hardness may not be obtained.
- the ratio of the structure (A) in all the molecular chains to the total of the number of A) and the number of the structure (B) (hereinafter sometimes referred to as “terminal (A) ratio (I)”) is particularly limited. However, it is usually 1.1 or more, preferably 1.2 or more, more preferably 1.3 or more, particularly preferably 1.4 or more, and usually 5.0 or less, preferably 3.0 or less, more Preferably it is 2.0 or less, More preferably, it is 1.9 or less, Most preferably, it is 1.8 or less.
- the terminal (A) ratio (I) can be adjusted by the ratio of the diol as the raw material of the structure (A) and the structure (B), the type and amount of catalyst, the maximum reaction temperature, and the reaction time.
- the polycarbonate diol according to the first embodiment of the present invention is produced using diol and carbonic acid diester as raw materials.
- the carbonic acid diester that can be used is not limited as long as the effects of the present invention are not lost, and examples thereof include alkyl carbonate, aryl carbonate, and alkylene carbonate.
- examples thereof include alkyl carbonate, aryl carbonate, and alkylene carbonate.
- the use of aryl carbonate has the advantage that the reaction proceeds rapidly.
- aryl carbonate when aryl carbonate is used as a raw material, phenols having a high boiling point are by-produced, but it is preferable that the residual amount of phenols in the polycarbonate diol product is smaller. This is because it is a monofunctional compound and can be a polymerization inhibitor during polyurethane formation, and is also a stimulating substance.
- dialkyl carbonates, diaryl carbonates and alkylene carbonates of carbonic acid diesters that can be used for the production of the polycarbonate diol according to the first aspect of the present invention are as follows.
- dialkyl carbonate examples include dimethyl carbonate, diethyl carbonate, dibutyl carbonate, dicyclohexyl carbonate, diisobutyl carbonate, ethyl-n-butyl carbonate, ethyl isobutyl carbonate, and preferably dimethyl carbonate and diethyl carbonate.
- diaryl carbonates include diphenyl carbonate, ditolyl carbonate, bis (chlorophenyl) carbonate, di m-cresyl carbonate, and preferably diphenyl carbonate.
- alkylene carbonates include ethylene carbonate, trimethylene carbonate, tetramethylene carbonate, 1,2-propylene carbonate, 1,2-butylene carbonate, 1,3-butylene carbonate, 2,3-butylene carbonate, 1,2 -Pentylene carbonate, 1,3-pentylene carbonate, 1,4-pentylene carbonate, 1,5-pentylene carbonate, 2,3-pentylene carbonate, 2,4-pentylene carbonate, neopentyl carbonate, etc.
- it is ethylene carbonate.
- diaryl carbonate is preferable because it is rich in reactivity and is efficient for industrial production, and among them, diphenyl carbonate that is easily available at low cost as an industrial raw material is more preferable.
- Specific examples of the raw material diol that gives the structure (A) include isosorbide and its stereoisomers such as isomannide and isoidide. These may be used alone or in combination of two or more. May be. Among them, isosorbide that is easily obtained by a dehydration reaction of sorbitol and is commercially available in an industrial amount is preferable.
- diols Of these diols, more preferred raw material diols are industrial availability, and the resulting polycarbonate diol and polyurethane have excellent physical properties.
- straight chain hydrocarbon terminal diols include ethylene glycol and 1,3-propanediol.
- 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,7-heptanediol, etc., and chain diols having an ether group include diethylene glycol, triethylene glycol, tetraethylene
- diols having a branched chain such as glycol, polypropylene glycol, polytetramethylene glycol and the like include 2-methyl-1,3-propanediol, 2-ethyl-1,3-propanediol, and 2,2-dimethyl-1 , 3-propanediol, 2-d 2-butyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, 3-methyl-1,5-pentanediol, 3,3-dimethyl-1,5-pentanediol, 2,2,4,4-tetramethyl-1,5-pentanediol,
- diols may be used alone or in combination of two or more.
- the polycarbonate diol according to the first aspect of the present invention is characterized in that it contains the structure (A).
- the diols that give this structure (A) (hereinafter referred to as “diol for the structure (A)” may be referred to. ) May be unstable and requires caution when stored and used. For example, since isosorbide is gradually oxidized in the presence of oxygen, it is important to use an oxygen scavenger or to put it in a nitrogen atmosphere to prevent decomposition due to oxygen during storage and handling during production. is there. It is also necessary to prevent moisture from entering. When isosorbide is oxidized, decomposition products such as formic acid are generated.
- the resulting polycarbonate diol may be colored or the physical properties may be significantly deteriorated.
- the polymerization reaction may be affected, and a polymer having a target molecular weight may not be obtained.
- Japanese Patent Application Laid-Open No. 2009-161745 defines a preferable amount of formic acid contained in a raw material dihydroxy compound such as isosorbide used in the production of polycarbonate. It is said that a good polycarbonate can be obtained.
- the amount of formic acid contained in the diol for structure (A) to be used is not particularly limited, but the upper limit is usually 20 ppm, Preferably, it is 10 ppm, more preferably 5 ppm, and the lower limit is usually 0.1 ppm, preferably 1 ppm.
- these diols for structure (A) tend to lower the pH because they produce acidic substances such as formic acid when they are oxidatively degraded. Therefore, pH can also be used as an index for evaluation of usable diol for structure (A).
- the method described in the pamphlet of International Publication No. 09/057609 that is, a method of measuring with a pH meter as a 40% aqueous solution of a raw material diol can be employed.
- the lower limit of the pH of the 40% aqueous solution of the structure (A) diol necessary for producing the polycarbonate diol according to the first aspect of the present invention is not particularly limited, but is usually 3, preferably pH 4, The pH is preferably 5, and the upper limit is pH 11, preferably pH 10.
- the amount of peroxide in the structure (A) diol is usually 10 ppm or less, preferably 5 ppm or less, more preferably 3 ppm or less, and even more preferably 1 ppm or less based on the weight of the structure (A) diol. Although a minimum is not specifically limited, Usually, it is 0.01 ppm or more.
- the reaction rate at the time of converting the polycarbonate diol into a polyurethane is further increased during the polycarbonate formation reaction. It may have an effect. Therefore, the content of the group 1 metal of the periodic table and / or the group 2 metal compound of the periodic table in the diol for the structure (A) is not particularly limited, but is preferably small, and the upper limit is usually for the structure (A).
- the weight ratio of the metal to the diol weight is 10 ppm, preferably 5 ppm, more preferably 3 ppm, and even more preferably 1 ppm, and particularly preferably contains no periodic table group 1 metal and / or periodic table group 2 metal compound. Is.
- halogen component such as chloride ion or bromide ion
- the content is small.
- the upper limit of the content of the halogen component in the diol for the structure (A) is 10 ppm, preferably 5 ppm, more preferably 1 ppm as the halogen content with respect to the weight of the diol for the structure (A).
- the structure (A) diol that deteriorates due to oxidation or the like or contains the above impurities can be purified by, for example, distillation, etc., so that it is distilled before use for polymerization and is in the above range. Is possible. In order to prevent oxidative degradation again after distillation, it is also effective to add a stabilizer.
- Specific stabilizers can be used without limitation as long as they are generally used as antioxidants for organic compounds, and include butylhydroxytoluene, butylhydroxyanisole, 2,6-di-t- Butyl-4-methylphenol, 2- [1- (2-hydroxy-3,5-di-t-pentylphenyl) ethyl] -6-di-t-pentylphenyl acrylate (manufactured by Sumitomo Chemical Co., Ltd., trade name: Sumilizer ( Registered trademark) GS) and the like, 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [D, f] [1,3,2] dioxaphosphepine (manufactured by Sumitomo Chemical Co., Ltd., trade name Sumilizer (registered trademark) GP), bis (2,4-di-t-butyl) Ph
- the lower limit of the number average molecular weight (Mn) of the polycarbonate diol according to the first aspect of the present invention is usually 250, preferably 500, more preferably 700, and particularly preferably 1,000.
- the upper limit is usually 5,000, preferably 4,000, and more preferably 3,000.
- the number average molecular weight of the polycarbonate diol is less than the lower limit, the hardness which is a feature of the present invention cannot be obtained sufficiently when urethane is used.
- the upper limit if the upper limit is exceeded, the viscosity will increase and handling during polyurethane formation will be hindered.
- the molecular weight distribution (Mw / Mn) of the polycarbonate diol according to the first aspect of the present invention is not particularly limited, but the lower limit is usually 1.5, preferably 2.0.
- the upper limit is usually 3.5, preferably 3.0.
- Mw is a weight average molecular weight
- Mn is a number average molecular weight, which can be usually determined by gel permeation chromatography (GPC) measurement.
- the terminal structure of the polymer is basically a hydroxyl group.
- the polycarbonate diol product obtained by the reaction of diol and carbonic acid diester may have a structure in which some polymer terminals are not hydroxyl groups as impurities.
- the molecular chain terminal is an alkyloxy group or an aryloxy group, and many are structures derived from a carbonic acid diester.
- a phenoxy group (PhO-) is used as an aryloxy group
- a methoxy group (MeO-) is used as an alkyloxy group when dimethyl carbonate is used
- an ethoxy group is used when diethyl carbonate is used.
- EtO— ethylene carbonate
- a hydroxyethoxy group (HOCH 2 CH 2 O—) may remain as a terminal group (where Ph represents a phenyl group, Me represents a methyl group, Et represents an ethyl group).
- the proportion of the structure in which the molecular chain terminal contained in the polycarbonate diol product is an alkyloxy group or aryloxy group is usually 5 mol% or less of the total number of terminal groups, preferably Is 3 mol% or less, more preferably 1 mol% or less.
- the lower limit of the ratio of the number of the molecular chain terminal at the end is an alkyloxy group or an aryloxy group is not particularly limited, and is usually 0.01 mol%, preferably 0.001 mol%, most preferably 0 mol%. .
- the proportion of the alkyloxy or aryloxy end group is large, there may be a problem that the degree of polymerization does not increase when the polyurethane-forming reaction is carried out.
- the ratio of the number of molecular chain terminals that are alkyloxy groups or aryloxy groups is usually 5% or less.
- the hydroxyl value of the polycarbonate diol according to the first aspect of the present invention is not particularly limited, but the lower limit is usually 10 mg-KOH / g, preferably 20 mg-KOH / g, more preferably 35 mg-KOH / g.
- the upper limit is usually 230 mg-KOH / g, preferably 160 mg-KOH / g, more preferably 130 mg-KOH / g. If the hydroxyl value is less than the above lower limit, the viscosity may be too high, and handling during polyurethane formation may be difficult. If the upper limit is exceeded, strength and hardness may be insufficient when polyurethane is used.
- the polycarbonate diol according to the first aspect of the present invention basically has a structure in which a raw material diol is polymerized by a carbonate group.
- some of the ether structure other than the above-mentioned structure (A) may be mixed, and the weather resistance and heat resistance may decrease when the amount of the structure increases. It is desirable to produce such that the proportion of the ether structure other than (A) does not become excessive.
- the structure contained in the molecular chain of the polycarbonate diol according to the first aspect of the present invention in that the ether structure other than the structure (A) in the polycarbonate diol is reduced to ensure the properties such as weather resistance and heat resistance.
- the ratio of the ether bond and the carbonate bond other than (A) is not particularly limited, but is usually 2/98 or less, preferably 1/99 or less, more preferably 0.5 / 99.5 or less in molar ratio.
- the structure (B) also contains an ether bond
- the ratio of the ether bond and the carbonate bond other than the structure (A) and the structure (B) contained in the molecular chain of the polycarbonate diol according to the first aspect of the present invention is not particularly limited, but is usually a molar ratio. 2/98 or less, preferably 1/99 or less, more preferably 0.5 / 99.5 or less.
- the polycarbonate diol according to the first aspect of the present invention usually exhibits a property from a liquid to a waxy white turbid solid at around room temperature, but the viscosity can be lowered by heating and the handling becomes easy. . It can also be dissolved in an amide solvent such as dimethylformamide or dimethylacetamide, an ester solvent such as ⁇ -butyrolactone, or a sulfoxide solvent such as dimethyl sulfoxide, which may facilitate transfer and reaction.
- an amide solvent such as dimethylformamide or dimethylacetamide
- an ester solvent such as ⁇ -butyrolactone
- a sulfoxide solvent such as dimethyl sulfoxide
- the property of the polycarbonate diol according to the first aspect of the present invention is usually a liquid to white waxy solid at room temperature, and the property varies depending on the temperature.
- the lower limit of the viscosity at 40 ° C. of the polycarbonate diol according to the first aspect of the present invention is preferably 0.1 Pa ⁇ s, more preferably 1 Pa ⁇ s, still more preferably 5 Pa ⁇ s, and the upper limit. Is preferably 108 Pa ⁇ s, more preferably 107 Pa ⁇ s, and even more preferably 106 Pa ⁇ s.
- the color of the polycarbonate diol according to the first aspect of the present invention is preferably in a range that does not affect the color of the polyurethane obtained, and is a value when the degree of coloring is represented by the Hazen color number (based on JIS K0071-1).
- APHA value is not particularly limited, but is preferably 100 or less, more preferably 50 or less, and still more preferably 30 or less.
- the content of the phenols contained in the polycarbonate diol according to the first aspect of the present invention is not particularly limited, but is preferably less, preferably 0.1% by weight (hereinafter referred to as “% by weight”). Or less), more preferably 0.01% by weight or less, and still more preferably 0.001% by weight or less. This is because phenols are monofunctional compounds and thus may be polymerization inhibitors during polyurethane formation and are stimulating substances.
- the carbonic acid diester used as a raw material during the production may remain, but the carbonic acid diester in the polycarbonate diol according to the first aspect of the present invention may remain.
- the remaining amount is not limited, but it is preferably smaller, and the upper limit is usually 5% by weight, preferably 3% by weight, and more preferably 1% by weight. If the carbonic diester content of the polycarbonate diol is too large, the reaction during polyurethane formation may be inhibited.
- the lower limit is not particularly limited and is 0.1% by weight, preferably 0.01% by weight, and more preferably 0% by weight.
- the raw material diol used during production may remain.
- the residual amount of the raw material diol in the polycarbonate diol according to the first aspect of the present invention is not limited, but is preferably less, usually 10% by weight or less, preferably 5% by weight or less, more Preferably it is 3 weight% or less, More preferably, it is 1 weight% or less, Preferably it is 0.1 weight% or less, More preferably, it is 0.05 weight% or less.
- the residual amount of isosorbides in the polycarbonate diol is small. Is usually 10% by weight or less, preferably 5% by weight or less, more preferably 3% by weight or less, still more preferably 1% by weight or less, and particularly preferably 0.1% by weight or less. Yes, and most preferably 0.01% by weight or less.
- the residual amount of the raw material diol in the polycarbonate diol is large, the molecular length of the soft segment part when polyurethane is used may be insufficient.
- the diol that was the raw material of the polycarbonate diol can be identified by NMR measurement of the polycarbonate diol product or by NMR measurement or GC and LC measurement of the unreacted diol contained in the product. When it remains in a thing, it can identify from NMR measurement or GC and LC measurement. Moreover, the structure of the carbonic acid diester which was a raw material can also be estimated from impurities, such as an alcohol component by-produced when carbonic acid diester reacts, by NMR measurement or GC and LC measurement of the product.
- a transesterification catalyst can be used as necessary in order to accelerate the polymerization, as will be described later.
- the catalyst may remain in the obtained polycarbonate diol, but if too much catalyst remains, it becomes difficult to control the reaction during the polyurethane reaction, and the polyurethane reaction is accelerated more than expected. It is preferable that it does not remain, because a uniform polyurethane may not be obtained.
- the upper limit of the amount of catalyst remaining in the polycarbonate diol is not particularly limited, but from the viewpoint of obtaining a homogeneous polyurethane from this polycarbonate diol, the content in terms of catalyst metal is usually 100 ppm by weight, preferably 50 ppm by weight, more Preferably it is 30 weight ppm, Most preferably, it is 10 weight ppm.
- the remaining metal include catalytic active component metals having transesterification ability described below.
- the lower limit of the amount of catalyst remaining in the polycarbonate diol is not particularly limited, but is usually 0.01 ppm by weight, preferably 0.1 ppm by weight, more preferably 1 ppm by weight as the content in terms of catalyst metal, Particularly preferred is 5 ppm by weight.
- the amount of the catalyst in the polycarbonate diol can be adjusted by the amount of catalyst used at the time of production, catalyst isolation by filtration of the product, catalyst extraction using a solvent such as water, or the like.
- the polycarbonate diol product may contain cyclic carbonate by-produced during production.
- 1,3-propanediol is used as the raw material diol
- 1,3-dioxane-2-one or a compound obtained by forming two or more of these molecules into a cyclic carbonate as a cyclic compound is produced as a polycarbonate diol. May be included.
- These compounds are impurities that may cause side reactions in the polyurethane-forming reaction, so it is desirable to remove them as much as possible in the production stage.
- the content of these impurity cyclic carbonates contained in the polycarbonate diol according to the first aspect of the present invention is not limited, but is usually 3% by weight or less, preferably 1% by weight or less, more preferably 0.8%. 5% by weight or less.
- the reaction rate in the urethanization reaction of the polycarbonate diol according to the first aspect of the present invention is such that the polycarbonate diol is a solution of N, N-dimethylformamide and the diphenylmethane diisocyanate is 0.98 times the molar equivalent of the polycarbonate diol.
- the lower limit of the motor load value 30 minutes after the addition of diphenylmethane diisocyanate is usually 0.10 V, preferably 0.13 V, more preferably 0.20 V, and the upper limit is usually 2.00 V, preferably 1.95 V, more preferably 1.95 V. 90V.
- the lower limit of the motor load value 60 minutes after the addition of diphenylmethane diisocyanate is usually 0.10 V, preferably 0.13 V, more preferably 0.20 V, and the upper limit is usually 2.00 V, preferably 1.95 V, more preferably 1.90V.
- the amount is less than the above lower limit, the polymerization tends not to proceed any more, and when the amount exceeds the upper limit, the molecular weight tends to be very high or gelled.
- the lower limit of the time [min] until the motor load value becomes 0.7 V is usually 8 minutes, preferably 10 minutes, more preferably 15 minutes, and the upper limit is usually 240 minutes, preferably 200 minutes, more Preferably it is 120 minutes.
- the lower limit of the time [minute] until the motor load value reaches 1.0 V is usually 2 minutes, preferably 5 minutes, more preferably 10 minutes, and the upper limit is usually 120 minutes, preferably 90 minutes, more preferably 60 minutes. Minutes. If the amount is less than the above lower limit, the molecular weight tends to be very high or the gelation tends to occur, and if the amount exceeds the upper limit, the polymerization tends not to proceed any longer.
- the measurement of the motor load value [V] is based on the motor load value when the N, N-dimethylformamide solution of polycarbonate diol is stirred at 100 rpm, the motor load value after stirring at 100 rpm for a predetermined time after the addition of diphenylmethane diisocyanate. It can be obtained from the difference between the two.
- the motor has a rotation range of about 10 to 600 rpm, the maximum torque at about 600 rpm is about 0.49 N ⁇ m, and the motor load value can be output at about 0 to 5 V.
- the measurement may be performed under conditions of nitrogen flow or nitrogen filling, using a separable flask having a capacity of 500 mL as a container and a four-blade combining two squid molds as a stirring blade.
- the polycarbonate diol according to the first aspect of the present invention is a diol such as a raw material diol represented by isosorbide giving the above-mentioned structure (A) and a raw material diol giving the above-mentioned structure (B) which is used as necessary.
- the above-mentioned carbonic acid diester can be produced by transesterification using a transesterification catalyst, if necessary.
- a transesterification catalyst if necessary.
- a diol having 1 to 15 carbon atoms that may contain a heteroatom and
- a carbonic acid diester are transesterified. It can be produced by reacting in the presence of a catalyst. The manufacturing method will be described below.
- transesterification catalyst Any metal that can be used as a transesterification catalyst can be used without limitation as long as it is generally considered to have transesterification ability.
- catalytic metals include Group 1 metals of the periodic table such as lithium, sodium, potassium, rubidium and cesium; Group 2 metals of the periodic table such as magnesium, calcium, strontium and barium; Group 4 metals of the periodic table such as titanium and zirconium Periodic group 5 metal such as hafnium; periodic group 9 metal such as cobalt; periodic table 12 metal such as zinc; periodic group 13 metal such as aluminum; periodic group 14 metal such as germanium, tin, lead; Examples include periodic table 15 group metals such as antimony and bismuth; lanthanide metals such as lanthanum, cerium, europium, and ytterbium.
- periodic table group 1 metal, periodic table group 2 metal, periodic table group 4 metal, periodic table group 5 metal, periodic table group 9 metal, periodic table 12 metal, periodicity A Group 13 metal and a Group 14 metal are preferable, a Group 1 metal and a Group 2 metal are more preferable, and a Group 2 metal is more preferable.
- the periodic table group 1 metals lithium, potassium, and sodium are preferable, lithium and sodium are more preferable, and sodium is more preferable.
- the Group 2 metals of the periodic table magnesium, calcium and barium are preferable, calcium and magnesium are more preferable, and magnesium is more preferable.
- These metals may be used as a single metal or as a metal compound such as a hydroxide or a salt.
- salts when used as a salt include halide salts such as chloride, bromide and iodide; carboxylates such as acetate, formate and benzoate; methanesulfonic acid, toluenesulfonic acid and trifluoro Examples thereof include sulfonates such as romethanesulfonic acid; phosphorus-containing salts such as phosphates, hydrogen phosphates, and dihydrogen phosphates; acetylacetonate salts.
- the catalyst metal can also be used as an alkoxide such as methoxide or ethoxide.
- periodic table group 1 metal Preferably, periodic table group 1 metal, periodic table group 2 metal, periodic table group 4 metal, periodic table group 5 metal, periodic table group 9 metal, periodic table 12 metal, periodic table group 13 metal, periodic table Group 14 metal acetates, nitrates, sulfates, carbonates, phosphates, hydroxides, halides, and alkoxides are used, and more preferably acetates or carbonates of Group 1 metals or Group 2 metals of the Periodic Table. Salts and hydroxides are used, and more preferred are group 2 metal acetates. These metals and metal compounds may be used individually by 1 type, and may use 2 or more types together.
- Specific examples of compounds using Group 1 metals of the transesterification catalyst include sodium hydroxide, potassium hydroxide, cesium hydroxide, lithium hydroxide, sodium bicarbonate, sodium carbonate, potassium carbonate, cesium carbonate, lithium carbonate , Sodium acetate, potassium acetate, cesium acetate, lithium acetate, sodium stearate, potassium stearate, cesium stearate, lithium stearate, sodium borohydride, sodium borohydride, sodium benzoate, potassium benzoate, cesium benzoate , Lithium benzoate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, dilithium hydrogen phosphate, disodium phenyl phosphate; disodium salt, dipotassium salt, dicesium salt, dilithium salt of bisphenol A; phenol Sodium salt, potassium salt, cesium salt, a lithium salt; and the like are.
- Examples of compounds using Group 2 metals in the periodic table include magnesium hydroxide, calcium hydroxide, strontium hydroxide, barium hydroxide, magnesium bicarbonate, calcium bicarbonate, strontium bicarbonate, barium bicarbonate, magnesium carbonate, carbonate
- Examples thereof include calcium, strontium carbonate, barium carbonate, magnesium acetate, calcium acetate, strontium acetate, barium acetate, magnesium stearate, calcium stearate, calcium benzoate, and magnesium phenyl phosphate.
- Examples of compounds using Group 4 metal, Group 12 metal, and Group 14 metal of the periodic table include titanium alkoxides such as tetraethyl titanate, tetraisopropyl titanate, tetra-n-butyl titanate; titanium halides such as titanium tetrachloride; Zinc salts such as zinc acetate, zinc benzoate, zinc 2-ethylhexanoate; tin (II) chloride, tin (IV) chloride, tin (II) acetate, tin (IV) acetate, dibutyltin dilaurate, dibutyltin oxide, dibutyltin Examples include tin compounds such as dimethoxide; zirconium compounds such as zirconium acetylacetonate, zirconium oxyacetate, and zirconium tetrabutoxide; lead compounds such as lead (II) acetate, lead (IV) acetate, and lead (
- the amount of carbonic acid diester used is not particularly limited, but the lower limit is preferably 0.50, more preferably 0 in terms of a molar ratio to a total of 1 mol of diols. .70, more preferably 0.80, even more preferably 0.90, particularly preferably 0.95, most preferably 0.98, and the upper limit is usually 1.20, preferably 1.15, more preferably 1.10.
- the proportion of the polycarbonate diol end group obtained is not a hydroxyl group increases, or the molecular weight does not fall within the predetermined range, and the polycarbonate diol according to the first aspect of the present invention cannot be produced. In some cases, the polymerization may not proceed to a predetermined molecular weight below the lower limit.
- the ratio of raw material (A) / raw material (B) is preferably 100/0 to 10/90, more preferably 80/20 to 20/80, and more preferably 70/30 to 30/70. More preferably.
- the amount used is preferably an amount that does not affect the performance even if it remains in the obtained polycarbonate diol.
- the upper limit of the weight ratio in terms of metal to the weight of the raw material diol is preferably 500 ppm, more preferably 100 ppm, and even more preferably 50 ppm.
- the lower limit is an amount that provides sufficient polymerization activity, and is preferably 0.01 ppm, more preferably 0.1 ppm, and even more preferably 1 ppm.
- reaction conditions there are no particular restrictions on the method of charging the reaction raw material, and a method in which the entire amount of diol, carbonate and catalyst are charged simultaneously, and when the carbonate is solid, the carbonate is first charged, heated and melted afterwards.
- a method of adding a diol and a catalyst conversely, a method in which a diol is first charged and melted, and a carbonate ester and a catalyst are added thereto, and a part of the diol is reacted with a carbonate ester or a chlorocarbonate ester to react with the diol.
- the method of reacting with the remaining diol after the synthesis of the diester carbonate derivative can be freely selected.
- a part of the diol used is added at the end of the reaction in order to make the ratio of the number of the molecular chain terminal an alkyloxy group or aryloxy group to 5% or less. It is also possible to adopt a method of adding.
- the upper limit of the amount of diol added last is usually 20%, preferably 15%, more preferably 10% of the amount of diol to be charged, and the lower limit is usually 0.1%, preferably 0.5%. %, More preferably 1.0%.
- the reaction temperature for the transesterification reaction can be arbitrarily adopted as long as a practical reaction rate can be obtained.
- the temperature is not particularly limited, but is usually 70 ° C. or higher, preferably 100 ° C. or higher, more preferably 130 ° C. or higher. Also, it is usually 250 ° C. or lower, preferably 230 ° C. or lower, more preferably 200 ° C. or lower, still more preferably less than 180 ° C., particularly preferably 170 ° C. or lower, and most preferably 165 ° C. or lower. If the upper limit is exceeded, the obtained polycarbonate diol is colored, an ether structure is formed, or the terminal (A) ratio (I) becomes too large. Quality problems such as insufficient physical properties may occur.
- the reaction can be carried out at normal pressure, but the transesterification reaction is an equilibrium reaction, and the reaction can be biased toward the production system by distilling off the light-boiling components produced out of the system. Therefore, it is usually preferable to carry out the reaction in the latter half of the reaction while employing a reduced pressure condition while distilling off the light boiling component. Or it is also possible to make it react, distilling off the light boiling component produced
- reaction pressure at the end of the reaction is not particularly limited, but the upper limit is usually 10 kPa, preferably 5 kPa, more preferably 1 kPa.
- the reaction can be carried out while passing a small amount of an inert gas such as nitrogen, argon or helium through the reaction system.
- the reaction is carried out in the vicinity of the boiling point of the carbonate or diol at the beginning of the reaction. It is also possible to adopt a method of proceeding. This is preferable because unreacted carbonate ester can be prevented from distilling off at the beginning of the reaction. Further, in order to prevent the raw materials from being distilled off at the initial stage of the reaction, it is possible to attach a reflux tube to the reactor and perform the reaction while refluxing the carbonate ester and the diol. In this case, it is preferable because the charged raw materials are not lost and the amount ratio of the reagents can be accurately adjusted.
- the polymerization reaction is performed while measuring the molecular weight of the produced polycarbonate diol, and is terminated when the target molecular weight is reached.
- the reaction time required for the polymerization varies greatly depending on the diol, carbonate, catalyst used, and type used, and cannot be defined unconditionally.
- the reaction time required to reach a predetermined molecular weight is usually 50 hours. Hereinafter, it is preferably 20 hours or less, more preferably 10 hours or less.
- the catalyst when a catalyst is used in the polymerization reaction, the catalyst is usually left in the polycarbonate diol obtained, and the metal catalyst may remain, and the reaction may not be controlled during the polyurethane reaction. .
- a substantially equimolar amount of, for example, a phosphorus compound may be added to the transesterification catalyst used.
- the transesterification catalyst can be inactivated efficiently by heat treatment as described later.
- Examples of the phosphorus compound used for inactivating the transesterification catalyst include inorganic phosphoric acid such as phosphoric acid and phosphorous acid, dibutyl phosphate, tributyl phosphate, trioctyl phosphate, triphenyl phosphate, And organic phosphate esters such as triphenyl phosphate. These may be used alone or in combination of two or more.
- the amount of the phosphorus compound used is not particularly limited, but as described above, it may be approximately equimolar with the transesterification catalyst used, and specifically, with respect to 1 mol of the transesterification catalyst used.
- the upper limit is preferably 5 mol, more preferably 2 mol, and the lower limit is preferably 0.8 mol, more preferably 1.0 mol.
- the transesterification catalyst in the reaction product is not sufficiently deactivated, and when the obtained polycarbonate diol is used as a raw material for polyurethane production, for example, the polycarbonate diol In some cases, the reactivity with respect to the isocyanate group cannot be sufficiently reduced.
- the obtained polycarbonate diol may be colored.
- the inactivation of the transesterification catalyst by adding a phosphorus compound can be performed even at room temperature, but it is more efficient when heated.
- the temperature of this heat treatment is not particularly limited, but the upper limit is preferably 150 ° C., more preferably 120 ° C., still more preferably 100 ° C., and the lower limit is preferably 50 ° C., more preferably 60 ° C., even more preferably. Is 70 ° C. When the temperature is lower than this, it takes time to deactivate the transesterification catalyst, which is not efficient, and the degree of deactivation may be insufficient. On the other hand, at temperatures exceeding 150 ° C., the obtained polycarbonate diol may be colored.
- the reaction time with the phosphorus compound is not particularly limited, but is usually 1 to 5 hours.
- the terminal structure in the polycarbonate diol product is an impurity having an alkyloxy group, an impurity having an aryloxy group, a phenol, a raw material diol or carbonate, a by-product light-boiling cyclic carbonate, and further added.
- Purification can be performed for the purpose of removing the catalyst and the like.
- a method of distilling off a light boiling compound by distillation can be employed.
- a specific method of distillation there is no particular limitation on the form such as vacuum distillation, steam distillation, thin film distillation, etc., and any method can be adopted.
- water-soluble impurities it may be washed with water, alkaline water, acidic water, a chelating agent solution or the like. In that case, the compound dissolved in water can be selected arbitrarily.
- polyurethane The polyurethane according to the first aspect of the present invention is obtained using the polycarbonate diol according to the first aspect of the present invention.
- the polyurethane according to the first aspect of the present invention can be produced by reacting the polycarbonate diol according to the first aspect of the present invention with a polyisocyanate and a chain extender in the range of room temperature to 200 ° C. Also, the polycarbonate diol according to the first embodiment of the present invention is first reacted with an excess of polyisocyanate to produce a prepolymer of terminal isocyanate, and further, the degree of polymerization is increased using a chain extender to produce polyurethane. Can do.
- polyisocyanate used for producing the polyurethane using the polycarbonate diol according to the first aspect of the present invention include various known polyisocyanate compounds such as aliphatic, alicyclic or aromatic.
- Examples include tetramethylene diisocyanate, hexamethylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, lysine diisocyanate, and dimerized isocyanate obtained by converting the carboxyl group of dimer acid to an isocyanate group.
- Aliphatic diisocyanates 1,4-cyclohexane diisocyanate, isophorone diisocyanate, 1-methyl-2,4-cyclohexane diisocyanate, 1-methyl-2,6-cyclohexane diisocyanate, 4,4′-dicyclohexylmethane diisocyanate and 1,3-bis (Isocyanatemethyl) cycloaliphatic diisocyanates such as cyclohexane; xylylene diisocyanate, 4,4'-diphenyldi Socyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, m-phenylene diisocyanate, p-phenylene diisocyanate, 4,4'-diphenylmethane diisocyanate, 4,4'-diphenyldimethylmethane diisocyanate, 4,4 ' Dibenzyl diisocyanate, dialkyl diphenylme
- preferred organic diisocyanates are 4,4'-diphenylmethane diisocyanate, hexamethylene diisocyanate, and isophorone diisocyanate from the viewpoint that the physical properties of the resulting polyurethane are balanced and that a large amount can be obtained industrially at low cost.
- the chain extender used in producing the polyurethane according to the first aspect of the present invention is a low molecular weight compound having at least two active hydrogens that react with isocyanate groups, and usually includes polyols and polyamines. it can.
- ethylene glycol diethylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 2,4-heptanediol, 1,8- Linear diols such as octanediol, 1,4-dimethylolhexane, 1,9-nonanediol, 1,12-dodecanediol, dimer diol; 2-methyl-1,3-propanediol, 2,2-dimethyl 1,3-propanediol, 2,2-diethyl-1,3-propanediol, 2-methyl-2-propyl-1,3-propanediol, 2-ethyl-1,3-hexanediol, 2,2 , 4-trimethyl-1,3-pentanediol, 2-methyl-1,8-octanediol
- a preferred chain extender is preferably 1,4-butanediol, 1,5-pentanediol, 1,5 in terms of a favorable balance of physical properties of the obtained polyurethane, and a large amount available industrially at low cost. 6-hexanediol, 1,8-octanediol, 1,9-nonanediol, 1,4-cyclohexanedimethanol, 1,4-dihydroxyethylcyclohexane, ethylenediamine, 1,3-aminopropane and the like.
- a chain terminator having one active hydrogen group can be used as necessary for the purpose of controlling the molecular weight of the resulting polyurethane.
- chain terminators include aliphatic monools such as ethanol having a hydroxyl group, propanol, butanol and hexanol, and aliphatic monoamines such as diethylamine having an amino group, dibutylamine, n-butylamine, monoethanolamine and diethanolamine. Is done. These may be used alone or in combination of two or more.
- an amine catalyst such as triethylamine, N-ethylmorpholine, triethylenediamine, or a tin catalyst such as trimethyltin laurate or dibutyltin dilaurate
- a known urethane polymerization catalyst typified by a tin-based compound or an organic metal salt such as a titanium-based compound can also be used.
- a urethane polymerization catalyst may be used individually by 1 type, and may use 2 or more types together.
- ⁇ Other polyols When producing the polyurethane according to the first aspect of the present invention, other known polyols can be used in combination with the polycarbonate diol according to the first aspect of the present invention, if necessary.
- known polyols that can be used at that time include polyoxyalkylene glycols such as polyethylene glycol, polypropylene glycol, polyoxytetramethylene glycol (PTMG); bisphenol A, ethylene oxide adducts of glycerin, propylene oxide adducts, etc. Polyalkylene alkylene oxide adducts; polyester polyol, polycaprolactone polyol, polycarbonate polyol and the like.
- polyester polyols include dibasic acids such as adipic acid, phthalic acid, isophthalic acid, maleic acid, succinic acid, fumaric acid, ethylene glycol, diethylene glycol, 1,3-propylene glycol, 1,4-butanediol, Examples thereof include those obtained from glycols such as 1,5-pentanediol, 1,6-hexanediol and trimethylolpropane.
- Polycarbonate polyols include 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, cyclohexanedimethanol, homopolycarbonate diol produced from 2-methylpropanediol, copolymer polycarbonate diol, etc. Is an example of what can be used.
- the ratio of the polycarbonate diol according to the first aspect of the present invention in the total polyols is sufficient to obtain the effect of using the polycarbonate diol according to the first aspect of the present invention.
- the polyurethane formation reaction in producing the polyurethane according to the first aspect of the present invention may be performed using a solvent.
- Preferred solvents include amide solvents such as dimethylformamide, diethylformamide, dimethylacetamide, N-methylpyrrolidone; sulfoxide solvents such as dimethyl sulfoxide; ether solvents such as tetrahydrofuran and dioxane; methyl isobutyl ketone, methyl ethyl ketone, cyclohexanone, and the like.
- Examples include ketone solvents; ester solvents such as methyl acetate, ethyl acetate, and butyl acetate; and aromatic hydrocarbon solvents such as toluene and xylene. These solvents can be used alone or as a mixed solvent of two or more.
- preferred organic solvents are methyl ethyl ketone, ethyl acetate, toluene, dimethylformamide, dimethylacetamide, N-methylpyrrolidone, dimethyl sulfoxide and the like.
- an aqueous dispersion polyurethane resin can be produced from the polyurethane resin composition in which the polycarbonate diol, polydiisocyanate, and the chain extender according to the first aspect of the present invention are blended.
- Examples thereof include a method in which a polyol, a polyisocyanate, and a chain extender containing a polycarbonate diol according to the first aspect of the present invention are mixed and reacted together (hereinafter referred to as “one-step method”).
- a polyol containing the polycarbonate diol according to the first embodiment of the present invention is reacted with one or more equivalents of an organic polyisocyanate in advance to prepare a both-end isocyanate intermediate corresponding to the soft segment of the polyurethane. It goes through the process to do. In this way, once the prepolymer is prepared and reacted with the chain extender, it may be easy to adjust the molecular weight of the soft segment part, and when it is necessary to ensure phase separation of the soft segment and the hard segment. Is useful.
- the one-stage method is also referred to as a one-shot method, and is a method in which a reaction is performed by charging a polyol, a polyisocyanate, and a chain extender containing the polycarbonate diol according to the first aspect of the present invention.
- the amount of polyisocyanate used in the one-stage method is not particularly limited, but the total number of hydroxyl groups of the polyol containing the polycarbonate diol according to the first embodiment of the present invention, the number of hydroxyl groups of the chain extender, and the number of amino groups is 1 equivalent.
- the lower limit is usually 0.7 equivalents, preferably 0.8 equivalents, more preferably 0.9 equivalents, particularly preferably 0.95 equivalents, and the upper limit is usually 3.0 equivalents, preferably 2.0 equivalents. Equivalent, more preferably 1.5 equivalents, still more preferably 1.1 equivalents. If the amount of polyisocyanate used is too large, the unreacted isocyanate group will cause a side reaction, which tends to make it difficult to obtain the desired physical properties. If it is too small, the molecular weight of the polyurethane will not be sufficiently increased, and the desired performance will be obtained. Tend not to be expressed.
- the amount of the chain extender is not particularly limited, but when the number obtained by subtracting the number of isocyanate groups of the polyisocyanate from the number of hydroxyl groups of the polyol containing the polycarbonate diol according to the first embodiment of the present invention is 1 equivalent, Is usually 0.7 equivalents, preferably 0.8 equivalents, more preferably 0.9 equivalents, particularly preferably 0.95 equivalents, and the upper limit is 3.0 equivalents, preferably 2.0 equivalents, more preferably 1.5 equivalents, particularly preferably 1.1 equivalents. If the amount of chain extender used is too large, the resulting polyurethane tends to be difficult to dissolve in the solvent and difficult to process. If too small, the resulting polyurethane is too soft and has sufficient strength, hardness, elastic recovery performance and elasticity. The holding performance may not be obtained or the high temperature characteristics may be deteriorated.
- the two-stage method is also called a prepolymer method, in which a polyisocyanate and a polyol containing the polycarbonate diol according to the first embodiment of the present invention are reacted in a polyisocyanate / polyol reaction equivalent ratio of 1.0 to 10.00,
- This is a method for producing a polyurethane by producing a prepolymer having an isocyanate group at the end and then adding a chain extender having an active hydrogen such as a polyhydric alcohol or an amine compound to the prepolymer.
- the two-stage method can be carried out without a solvent or in the presence of a solvent.
- the polyurethane production by the two-stage method can be carried out by any of the methods (1) to (3) described below.
- (1) Without using a solvent, first a polyisocyanate and a polyol containing a polycarbonate diol are directly reacted to synthesize a prepolymer and used as it is in the subsequent chain extension reaction.
- (2) A prepolymer is synthesized by the method of (1) and then dissolved in a solvent and used in the subsequent chain extension reaction.
- a polyisocyanate and a polyol containing polycarbonate diol are reacted from the beginning using a solvent, and then a chain extension reaction is performed in the solvent.
- the polyurethane coexists with the solvent by dissolving the chain extender in the solvent or simultaneously introducing the prepolymer and the chain extender into the solvent. It is important to get in shape.
- the amount of polyisocyanate used in the two-stage method is not particularly limited, but the lower limit is usually 1.0, preferably 1., as the number of isocyanate groups when the number of hydroxyl groups of the polyol containing polycarbonate diol is 1 equivalent.
- the upper limit is usually 10.0, preferably 5.0, and more preferably 3.0. If the amount of isocyanate used is too large, excess isocyanate groups tend to cause side reactions and adversely affect the physical properties of the polyurethane. If the amount is too small, the molecular weight of the resulting polyurethane will not increase sufficiently, resulting in strength and heat stability. There is a tendency to cause problems with sex.
- the amount of chain extender used is not particularly limited, but the lower limit is usually 0.1, preferably 0.5, more preferably 0.8 relative to the equivalent of the isocyanate group contained in the prepolymer. Is usually in the range of 5.0, preferably 3.0, and more preferably 2.0.
- a monofunctional organic amine or alcohol may be present together for the purpose of adjusting the molecular weight.
- each component is usually reacted at 0 to 250 ° C., but this temperature varies depending on the amount of the solvent, the reactivity of the raw materials used, the reaction equipment, etc., and is not particularly limited. If the temperature is too low, the progress of the reaction may be too slow, the productivity of the raw material and the polymer may be low, and the productivity may be deteriorated. If the temperature is too high, side reactions and decomposition of the resulting polyurethane may occur. .
- the chain extension reaction may be performed while degassing under reduced pressure.
- a catalyst, a stabilizer, etc. can also be added to chain extension reaction as needed.
- the catalyst include one or more of triethylamine, tributylamine, dibutyltin dilaurate, stannous octylate, acetic acid, phosphoric acid, sulfuric acid, hydrochloric acid, sulfonic acid, and the like.
- the stabilizer include 2, Examples thereof include one or more of 6-dibutyl-4-methylphenol, distearyl thiodipropionate, di-betanaphthyl phenylenediamine, tri (dinonylphenyl) phosphite and the like.
- the chain extender is highly reactive, such as a short-chain aliphatic amine, it is preferable to carry out without adding a catalyst.
- An aqueous polyurethane emulsion can be produced using the polycarbonate diol according to the first aspect of the present invention.
- a prepolymer is produced by reacting a polyol containing polycarbonate diol and a polyisocyanate, a compound having at least one hydrophilic functional group and at least two isocyanate-reactive groups is mixed. Is reacted with a chain extender to form a polyurethane emulsion.
- the hydrophilic functional group of the compound having at least one hydrophilic functional group and at least two isocyanate-reactive groups used here is, for example, a carboxylic acid group or a sulfonic acid group, and is neutralized with an alkaline group. Possible group.
- the isocyanate-reactive group is a group that generally reacts with isocyanate to form a urethane bond or a urea bond, such as a hydroxyl group, a primary amino group, or a secondary amino group, and these are mixed in the same molecule. It does not matter.
- the compound having at least one hydrophilic functional group and at least two isocyanate-reactive groups include 2,2′-dimethylolpropionic acid, 2,2-methylolbutyric acid, 2,2 ′. -Dimethylolvaleric acid and the like.
- diaminocarboxylic acids such as lysine, cystine, 3,5-diaminocarboxylic acid and the like can also be mentioned. These may be used alone or in combination of two or more.
- an amine such as trimethylamine, triethylamine, tri-n-propylamine, tributylamine, triethanolamine, or an alkaline compound such as sodium hydroxide, potassium hydroxide, or ammonia. be able to.
- the amount of the compound having at least one hydrophilic functional group and at least two isocyanate-reactive groups is used in order to increase the dispersion performance in water.
- the amount is usually 1% by weight, preferably 5% by weight, more preferably 10% by weight based on the weight of the polyol containing the polycarbonate diol according to the first embodiment.
- the upper limit is usually 50% by weight, preferably 40% by weight, more preferably Is 30% by weight.
- representatives include higher fatty acids, resin acids, acidic fatty alcohols, sulfate esters, higher alkyl sulfonates, higher alkyl sulfonates, alkyl aryl sulfonates, sulfonated castor oil, sulfosuccinates, etc.
- Anionic surfactants primary surfactants, secondary amine salts, tertiary amine salts, quaternary amine salts, cationic surfactants such as pyridinium salts, or ethylene oxide and long chain fatty alcohols or phenols
- the emulsion stability may be maintained by using a nonionic surfactant represented by a known reaction product.
- the prepolymer when the prepolymer is reacted with a chain extender to form a polyurethane emulsion, the prepolymer may be neutralized as necessary and then dispersed in water.
- the aqueous polyurethane emulsion produced in this manner can be used for various purposes.
- the water-based polyurethane emulsion for example, it is preferable to use it for coating agents, water-based paints, adhesives, synthetic leather, and artificial leather.
- the water-based polyurethane emulsion produced using the polycarbonate diol according to the first aspect of the present invention has a structure (A) in the polycarbonate diol, and thus has high hardness and excellent abrasion resistance, and has a surface Since the properties are maintained for a long period of time, it can be used more advantageously than a conventional aqueous polyurethane emulsion using a polycarbonate diol as a coating agent or the like.
- the polycarbonate diol according to the first aspect of the present invention may be reacted with polyisocyanate and then reacted with an acrylic ester or methacrylic ester having a hydroxy group to induce urethane acrylate, urethane methacrylate, or the like.
- these urethane acrylates and urethane methacrylates are widely used as coating agents, and the polycarbonate diol according to the first embodiment of the present invention can be used as a raw material without any particular limitation on their use.
- the polyurethane according to the first aspect of the present invention produced using the polycarbonate diol according to the first aspect of the present invention includes a heat stabilizer, a light stabilizer, a colorant, a filler, a stabilizer, an ultraviolet absorber, Various additives such as an antioxidant, an anti-tacking agent, a flame retardant, an anti-aging agent, and an inorganic filler can be added and mixed within a range that does not impair the properties of the polyurethane according to the first aspect of the present invention. .
- Compounds that can be used as heat stabilizers include phosphoric acid, phosphorous acid aliphatic, aromatic or alkyl group-substituted aromatic esters and hypophosphorous acid derivatives, phenylphosphonic acid, phenylphosphinic acid, diphenylphosphonic acid, polyphosphonate, dialkyl Phosphorus compounds such as pentaerythritol diphosphite and dialkylbisphenol A diphosphite; phenol derivatives, particularly hindered phenol compounds; thioethers, dithioacid salts, mercaptobenzimidazoles, thiocarbanilides, thiodipropionic acid esters, etc.
- Compounds containing sulfur; tin compounds such as tin malate and dibutyltin monoxide can be used.
- hindered phenol compound examples include Irganox 1010 (trade name: manufactured by Ciba Geigy) and Irganox 1520 (trade name: manufactured by Ciba Geigy).
- examples of the phosphorus compound include PEP-36, PEP-24G, and HP-10 (all trade names: manufactured by Asahi Denka Co., Ltd.) Irgafos 168 (trade name: manufactured by Ciba-Gaigi Co., Ltd.).
- Specific examples of the compound containing sulfur include thioether compounds such as dilauryl thiopropionate (DLTP) and distearyl thiopropionate (DSTP).
- light stabilizers examples include benzotriazole-based and benzophenone-based compounds. Specifically, “TINUVIN 622LD”, “TINUVIN 765” (above, manufactured by Ciba Specialty Chemicals), “SANOL LS-2626” "SANOL LS-765" (manufactured by Sankyo Co., Ltd.) can be used.
- ultraviolet absorbers examples include “TINUVIN 328” and “TINUVIN 234” (above, manufactured by Ciba Specialty Chemicals).
- colorants include direct dyes, acid dyes, basic dyes, metal complex dyes, and the like; inorganic pigments such as carbon black, titanium oxide, zinc oxide, iron oxide, and mica; and coupling azo series, condensed azo series, And organic pigments such as anthraquinone, thioindigo, dioxazone, and phthalocyanine.
- inorganic fillers examples include short glass fibers, carbon fibers, alumina, talc, graphite, melamine, and clay.
- flame retardants include phosphorus and halogen-containing organic compounds, bromine or chlorine-containing organic compounds, polyphosphate ammonium phosphate, aluminum hydroxide, antimony oxide and the like, and reactive flame retardants.
- additives may be used alone or in combination of two or more in any combination and ratio.
- the additive amount of these additives is preferably 0.01% by weight, more preferably 0.05% by weight, still more preferably 0.1% by weight, and the upper limit is preferably 10% by weight with respect to the polyurethane. More preferably, it is 5% by weight, still more preferably 1% by weight. If the amount of the additive added is too small, the effect of the addition cannot be sufficiently obtained, and if it is too large, it may precipitate in the polyurethane or generate turbidity.
- the lower limit of the film thickness is usually 10 ⁇ m, preferably 20 ⁇ m, more preferably 30 ⁇ m, and the upper limit is usually 1,000 ⁇ m, preferably It is 500 ⁇ m, more preferably 100 ⁇ m. If the film is too thick, sufficient moisture permeability tends not to be obtained, and if it is too thin, pinholes are likely to occur, or the film tends to be blocked and difficult to handle.
- the polyurethane film according to the first aspect of the present invention can be preferably used for medical materials such as medical adhesive films, hygiene materials, packaging materials, decorative films, and other moisture-permeable materials.
- the polyurethane film according to the first aspect of the present invention may be formed on a support such as a cloth or a nonwoven fabric. In this case, the thickness of the polyurethane film itself may be even thinner than 10 ⁇ m.
- the upper limit of the thickness of the plate in that case is not particularly limited, and the lower limit is usually 0.5 mm, preferably 1 mm, more preferably 3 mm.
- the molecular weight of the polyurethane according to the first aspect of the present invention is appropriately adjusted according to its use, and is not particularly limited.
- the number average molecular weight (Mn) in terms of polystyrene measured by GPC is 50,000 to 500,000, Particularly preferred is 100,000 to 300,000.
- Mn number average molecular weight
- the molecular weight is smaller than the lower limit, sufficient strength and hardness may not be obtained, and when the molecular weight is larger than the upper limit, handling properties such as workability tend to deteriorate.
- the polyurethane according to the first aspect of the present invention is a strip-shaped sample having a width of 10 mm, a length of 100 mm, and a thickness of about 50 to 100 ⁇ m, a distance between chucks of 50 mm, a tensile speed of 500 mm / min, a temperature of 23 ° C.
- the lower limit of the tensile elongation at break measured at a relative humidity of 55% is usually 50%, preferably 100%, more preferably 150%, and the upper limit is usually 400%, preferably 350%, more preferably 300%.
- the polyurethane according to the first aspect of the present invention is a strip-shaped sample having a width of 10 mm, a length of 100 mm, and a thickness of about 50 to 100 ⁇ m, a distance between chucks of 50 mm, a tensile speed of 500 mm / min, a temperature of 23 ° C.
- the lower limit of 100% modulus measured at a relative humidity of 55% is usually 10 MPa or more, preferably 15 MPa or more, more preferably 20 MPa or more, and the upper limit is usually 200 MPa or less, preferably 150 MPa or less, more preferably 100 MPa or less. If the 100% modulus is less than the lower limit, strength and hardness may be insufficient, and if the upper limit is exceeded, handling properties such as workability tend to deteriorate.
- the polyurethane according to the first aspect of the present invention is a sample in which a polyurethane film having a thickness of 100 ⁇ m is formed, cut into a rectangular shape having a width of 10 mm, and a reference line is written with a width of 50 mm.
- Creep characteristics ((L-), obtained by measuring the length (Lmm) between the reference lines when a load of 1 MPa was applied in the length direction and the load was removed after 16 hours.
- the lower limit of 50) / 50) ⁇ 100 (%)) is preferably as small as possible, but is usually 5%, preferably 2%, more preferably 1%, and the upper limit is usually 20%, preferably 10%. . If this creep characteristic is less than the above lower limit, the viscosity of the polyurethane may be high and the processing load may increase, and if it exceeds the upper limit, the strength and hardness may be insufficient.
- the polyurethane according to the first aspect of the present invention is characterized in that high hardness is obtained due to having a structure (A) rich in rigidity.
- a film sample having a thickness of about 50 to 100 ⁇ m is fixed to a testing machine (type II, Gakushin type), and a friction test is performed 500 times with a load of 4.9 N according to JIS L0849.
- Weight reduction rate ( ⁇ (sample weight before test ⁇ sample weight after test) / (sample weight before test) ⁇ ⁇ 100)
- the upper limit of the weight reduction rate is usually 2%, preferably 1.5%, more preferably 1.0%.
- the lower limit of the weight reduction ratio is usually 0.1%, preferably 0.05%, more preferably 0.01%.
- this film sample when expressed as a pencil hardness measured according to JIS K-5600-5-4 as an index, this film sample usually has a hardness of 6B or more, preferably 4B or more, more preferably 3B or more.
- the polyurethane according to the first aspect of the present invention can exhibit various characteristics, and is foam, elastomer, paint, fiber, adhesive, flooring, sealant, medical material, artificial leather, coating agent, water-based polyurethane. It can be widely used for paints and the like.
- the high-rigidity polyurethane according to the first aspect of the present invention is used for applications such as artificial leather, synthetic leather, water-based polyurethane, adhesives, medical materials, flooring materials, and coating agents, friction resistance and blocking resistance are achieved. Therefore, it is possible to impart good surface properties such that scratches due to scratches and the like hardly occur and deterioration due to friction is small.
- the polyurethane according to the first aspect of the present invention can be used for a cast polyurethane elastomer.
- Specific applications include rolling rolls, papermaking rolls, office equipment, rolls such as pre-tension rolls, forklifts, solid tires for automobile vehicles, trams, carts, etc., casters, industrial products such as conveyor belt idlers, guides There are rolls, pulleys, steel pipe linings, ore rubber screens, gears, connection rings, liners, pump impellers, cyclone cones, and cyclone liners. It can also be used for OA equipment belts, paper feed rolls, copying cleaning blades, snow plows, toothed belts, surferers, and the like.
- the polyurethane according to the first aspect of the present invention is also applied for use as a thermoplastic elastomer.
- a thermoplastic elastomer can be used for tubes and hoses, spiral tubes, fire hoses, etc. in pneumatic equipment, coating equipment, analytical equipment, physics and chemistry equipment, metering pumps, water treatment equipment, industrial robots and the like used in the food and medical fields.
- it is used for various power transmission mechanisms, spinning machines, packing equipment, printing machines and the like as belts such as round belts, V belts, and flat belts.
- it can be used for footwear heel tops, shoe soles, couplings, packings, pole joints, bushes, gears, rolls and other equipment parts, sports equipment, leisure goods, watch belts, and the like.
- automobile parts include oil stoppers, gear boxes, spacers, chassis parts, interior parts, tire chain substitutes, and the like.
- films such as keyboard films and automobile films, curl cords, cable sheaths, bellows, transport belts, flexible containers, binders, synthetic leather, depinning products, adhesives, and the like.
- the polyurethane according to the first aspect of the present invention can also be applied as a solvent-based two-component paint, and can be applied to wood products such as musical instruments, Buddhist altars, furniture, decorative plywood, and sports equipment. Moreover, it can be used for automobile repair as tar epoxy urethane.
- the polyurethane according to the first aspect of the present invention is used as a component of a moisture-curable one-component paint, a blocked isocyanate solvent paint, an alkyd resin paint, a urethane-modified synthetic resin paint, an ultraviolet curable paint, a water-based urethane paint, and the like.
- a moisture-curable one-component paint a blocked isocyanate solvent paint
- an alkyd resin paint e.g., urethane-modified synthetic resin paint
- an ultraviolet curable paint a water-based urethane paint
- the polyurethane according to the first aspect of the present invention can also be applied as an adhesive to food packaging, shoes, footwear, magnetic tape binders, decorative paper, wood, structural members, etc., and low temperature adhesives, hot melts It can also be used as a component.
- the form of using the polyurethane according to the first aspect of the present invention as an adhesive is not particularly limited, and the obtained polyurethane can be used as a solvent-type adhesive by dissolving it in a solvent. It is also possible to use it as a hot melt type adhesive.
- the solvent that can be used in the case of using the solvent is not particularly limited as long as it is suitable for the characteristics of the urethane to be obtained, and both aqueous and organic solvents can be used.
- aqueous adhesive in which an aqueous polyurethane emulsion is dissolved or dispersed in an aqueous solvent in order to reduce the burden on the environment.
- the polyurethane according to the first aspect of the present invention is also suitable for that purpose. Can be used.
- the additive manufactured by using the polyurethane according to the first aspect of the present invention can be mixed without limitation with additives and auxiliaries used in ordinary adhesives as necessary.
- additives include pigments, antiblocking agents, dispersion stabilizers, viscosity modifiers, leveling agents, antigelling agents, light stabilizers, antioxidants, UV absorbers, heat resistance improvers, inorganic and organic fillers Agents, plasticizers, lubricants, antistatic agents, reinforcing materials, catalysts, and the like, and known methods such as stirring and dispersion can be adopted as the blending method.
- the adhesive according to the first aspect of the present invention thus obtained includes metal materials such as iron, copper, aluminum, ferrite, plated steel plate, acrylic resin, polyester resin, ABS resin, polyamide resin, polycarbonate resin, chloride Resin materials such as vinyl resin and inorganic materials such as glass and ceramic can be efficiently bonded.
- metal materials such as iron, copper, aluminum, ferrite, plated steel plate, acrylic resin, polyester resin, ABS resin, polyamide resin, polycarbonate resin, chloride Resin materials such as vinyl resin and inorganic materials such as glass and ceramic can be efficiently bonded.
- the polyurethane according to the first aspect of the present invention includes, as a binder, a magnetic recording medium, ink, casting, fired brick, graft material, microcapsule, granular fertilizer, granular agricultural chemical, polymer cement mortar, resin mortar, rubber chip binder, and recycled foam. It can be used for glass fiber sizing.
- the polyurethane according to the first aspect of the present invention can be used as a component of a fiber processing agent for shrink-proofing, anti-molding, water-repellent processing, and the like.
- the fiberizing method can be carried out without any limitation as long as it can be spun.
- a melt spinning method in which the pellets are once pelletized, melted, and directly spun through a spinneret can be employed.
- the spinning temperature is preferably 250 ° C. or lower, more preferably 200 ° C. or higher and 235 ° C. or lower.
- the polyurethane elastic fiber according to the first aspect of the present invention can be used as a bare yarn as it is, or can be used as a covered yarn by coating with other fibers.
- other fibers include conventionally known fibers such as polyamide fibers, wool, cotton, and polyester fibers.
- polyester fibers are preferably used in the present invention.
- the polyurethane elastic fiber according to the first aspect of the present invention may contain a dyeing type disperse dye.
- the polyurethane according to the first aspect of the present invention is a concrete wall, induction joint, sash area, wall PC joint, ALC joint, board joint, composite glass sealant, heat insulation sash sealant, automobile as sealant caulking. It can be used for sealants.
- the polyurethane according to the first aspect of the present invention can be used as a medical material.
- a medical material a tube, a catheter, an artificial heart, an artificial blood vessel, an artificial valve, etc.
- a disposable material a catheter and a tube.
- the polyurethane according to the first aspect of the present invention is a UV curable coating, an electron beam curable coating, a photosensitive resin composition for flexographic printing plates, a photocurable optical fiber coating composition, etc. It can be used as a raw material.
- the active energy ray-curable polymer composition according to the first aspect of the present invention is a raw material reactant comprising the polycarbonate diol according to the first aspect of the present invention, polyisocyanate, and hydroxyalkyl (meth) acrylate. Containing a urethane (meth) acrylate oligomer.
- the polyisocyanate, the hydroxyalkyl (meth) acrylate, and the preferred embodiment as the reactant urethane (meth) acrylate oligomer are active energy ray curable according to the second embodiment of the present invention described later. This is the same as the embodiment in the polymer composition.
- the active energy ray-curable polymer composition according to the second aspect of the present invention contains a urethane (meth) acrylate oligomer.
- the urethane (meth) acrylate oligomer used in the second embodiment of the present invention is a compound having one or more radically polymerizable (meth) acryloyl groups and at least two urethane bonds in the molecule.
- Urethane (meth) acrylate oligomer is a cured product by irradiation with active energy rays, has a balanced tensile strength and excellent tensile elongation, and is excellent in surface curability as a composition, so that tack remains less. Thus, it is superior to other typical active energy ray-curable oligomers such as epoxy (meth) acrylate oligomers and acrylic (meth) acrylate oligomers.
- the urethane (meth) acrylate oligomer in the second aspect of the present invention is a reaction product of a raw material containing polyisocyanate, polycarbonate diol, and hydroxyalkyl (meth) acrylate.
- the urethane (meth) acrylate oligomer may be one type or two or more types. Below, each component of the raw material of a urethane (meth) acrylate type oligomer is demonstrated.
- polyisocyanate constituting the urethane (meth) acrylate oligomer in the second embodiment of the present invention is one or both of substituents containing two or more isocyanate groups and isocyanate groups in one molecule (“ Also referred to as “isocyanate groups”.
- One or more polyisocyanates may be used. In one kind of polyisocyanate, the isocyanate groups may be the same or different.
- substituent containing an isocyanate group examples include an alkyl group having 1 to 5 carbon atoms, an alkenyl group, or an alkoxyl group containing one or more isocyanate groups. More preferably, the alkyl group or the like as a substituent containing an isocyanate group has 1 to 3 carbon atoms.
- the number average molecular weight of the polyisocyanate is preferably 100 or more, preferably 150 or more, from the viewpoint of the balance between strength and elastic modulus as a cured product obtained by curing the active energy ray-curable polymer composition. More preferably, it is preferably 1,000 or less, and more preferably 500 or less.
- the number average molecular weight of the polyisocyanate is obtained from the calculated value from the chemical formula in the case of a polyisocyanate composed of a single monomer, and the calculated value from NCO% in the case of a polyisocyanate composed of two or more monomers. be able to.
- polyisocyanate examples include aliphatic polyisocyanates, polyisocyanates having an alicyclic structure, and aromatic polyisocyanates.
- Aliphatic polyisocyanate is a compound having an aliphatic structure and two or more isocyanate groups bonded thereto.
- An aliphatic polyisocyanate is preferable from the viewpoint of enhancing the weather resistance of a cured product obtained by curing the active energy ray-curable polymer composition and imparting flexibility.
- the aliphatic structure in the aliphatic polyisocyanate is not particularly limited, but is preferably a linear or branched alkylene group having 1 to 6 carbon atoms.
- aliphatic polyisocyanates examples include aliphatic diisocyanates such as tetramethylene diisocyanate, hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, and dimer acid diisocyanate, and aliphatic triisocyanates such as tris (isocyanatohexyl) isocyanurate, Is mentioned.
- the polyisocyanate has a cycloaliphatic structure from the viewpoint of mechanical strength and stain resistance of a cured product obtained by curing the active energy ray-curable polymer composition according to the second aspect of the present invention. It is preferable to contain.
- the polyisocyanate having an alicyclic structure is a compound having an alicyclic structure and two or more isocyanate groups bonded thereto.
- the alicyclic structure in the polyisocyanate having an alicyclic structure is not particularly limited, but is preferably a cycloalkylene group having 3 to 6 carbon atoms.
- Examples of the polyisocyanate having an alicyclic structure include diisocyanates having an alicyclic structure such as bis (isocyanate methyl) cyclohexane, cyclohexane diisocyanate, bis (isocyanatocyclohexyl) methane, isophorone diisocyanate, and tris (isocyanate isophorone) isocyanate.
- triisocyanate having an alicyclic structure such as nurate.
- the polyisocyanate having an alicyclic structure is also preferable from the viewpoint of enhancing the weather resistance of a cured product obtained by curing the active energy ray-curable polymer composition.
- the polyisocyanate having such an alicyclic structure examples thereof include bis (isocyanatomethyl) cyclohexane, cyclohexane diisocyanate, bis (isocyanatocyclohexyl) methane, and isophorone diisocyanate.
- An aromatic polyisocyanate is a compound having an aromatic structure and two or more isocyanate groups bonded thereto.
- the aromatic structure in the aromatic polyisocyanate is not particularly limited, but is preferably a divalent aromatic group having 6 to 13 carbon atoms.
- aromatic polyisocyanates include aromatic diisocyanates such as tolylene diisocyanate, xylylene diisocyanate, diphenylmethane diisocyanate, m-phenylene diisocyanate, and naphthalene diisocyanate.
- aromatic polyisocyanate is preferable from the viewpoint of increasing the mechanical strength of the cured product, for example, and examples of such aromatic polyisocyanate include tolylene diisocyanate and diphenylmethane diisocyanate.
- polycarbonate diol constituting the urethane (meth) acrylate oligomer in the second aspect of the present invention is the same as the polycarbonate diol according to the first aspect.
- the preferred range of the polycarbonate diol is the polycarbonate diol according to the first aspect. It may be different from the preferred range as a single unit, and the difference will be mainly described below.
- the polycarbonate diol constituting the urethane (meth) acrylate oligomer in the second aspect of the present invention contains 10% by mass or more of a repeating unit represented by the following formula (A) and has a number average molecular weight of 500 or more and 5,000 or less. It is this compound.
- the polycarbonate diol has at least two hydroxyl groups in its molecular chain, preferably one at each of both ends of the molecular chain.
- the polycarbonate diol may be one type or two or more types.
- structure (B) As another structure other than the structure (A), for example, a structure represented by the following formula (B) (hereinafter, the structure represented by the formula (B) may be referred to as “structure (B)”). Is mentioned.
- the structure (B) may be continuous in the polycarbonate diol, may exist at regular intervals, or may be unevenly distributed.
- X in the formula (B) is a divalent group having 1 to 15 carbon atoms which may have a hetero atom. This group may contain any structure of a linear or branched chain group or a cyclic group.
- the number of carbon atoms as an element constituting X is preferably 10 or less, more preferably 6 or less, from the viewpoint of mechanical strength of the cured film to be obtained.
- group of X include a group generated when a diol that gives the structure (B) is used during the production of polycarbonate diol.
- One or more diols may be used. Examples of such diols include the diols listed in the first embodiment.
- X in the formula (B) is preferably a divalent group having 6 carbon atoms from the viewpoint of mechanical strength and industrial availability of the resulting cured film.
- Examples of such X include X when 1,6-hexanediol or 3-methyl-1,5-pentanediol is used as the diol.
- the content of the structure other than the structure (A) in the polycarbonate diol may be in a range in which the effect of the other structure can be obtained in addition to the effect of the present invention, and is appropriately determined according to the other structure. Can do.
- the number average molecular weight of the polycarbonate diol is good workability due to the appropriate viscosity of the urethane (meth) acrylate oligomer, and the mechanical strength and resistance of a cured product obtained by curing the active energy ray-curable polymer composition. From the viewpoint of contamination, it is 500 or more and 5,000 or less. From the above viewpoint, the number average molecular weight of the polycarbonate diol is preferably 3,000 or less, more preferably 2,000 or less, and further preferably 1,500 or less. In addition, the number average molecular weight of the polycarbonate diol is preferably 800 or more, more preferably 1,000 or more from the above viewpoint.
- the number average molecular weight of the polycarbonate diol When the number average molecular weight of the polycarbonate diol is small, the workability is improved, and the mechanical strength and stain resistance of the cured product tend to be improved. When the number average molecular weight of the polycarbonate diol increases, the flexibility that can follow the deformation during three-dimensional processing of the cured product tends to improve.
- the hydroxyl value (OH value) of the polycarbonate diol is 20 mgKOH / g or more and 250 mgKOH / g or less from the viewpoint of mechanical strength and stain resistance of a cured product obtained by curing the active energy ray-curable polymer composition. Preferably there is. From the above viewpoint, the hydroxyl value of the polycarbonate diol is more preferably 150 mgKOH / g or less. Further, the hydroxyl value of the polycarbonate diol is preferably 35 mgKOH / g or more from the above viewpoint, more preferably 55 mgKOH / g or more, and further preferably 75 mgKOH / g or more.
- the hydroxyl value of the polycarbonate diol When the hydroxyl value of the polycarbonate diol is decreased, the flexibility that can follow the deformation during the three-dimensional processing of the cured product tends to be improved. When the hydroxyl value of the polycarbonate diol is increased, the mechanical strength and stain resistance of the cured product tend to be improved. In addition, the hydroxyl value (OH value) of polycarbonate diol can be measured by the method mentioned later.
- the average number of hydroxyl groups per molecule of the polycarbonate diol is 2.2 or less from the viewpoint of suppressing gelation during the production of the urethane (meth) acrylate oligomer. From the above viewpoint, the average number of hydroxyl groups per molecule of the polycarbonate diol is preferably 2.1 or less. If the average number of hydroxyl groups per molecule of the polycarbonate diol exceeds the upper limit, gelation may occur during the production of the urethane (meth) acrylate oligomer, which may damage not only the urethane (meth) acrylate oligomer but also the reaction vessel.
- the obtained active energy ray-curable polymer composition is not preferable because it contains a gel and has high viscosity, resulting in poor applicability.
- the average number of hydroxyl groups per molecule of the polycarbonate diol is not limited, but the molecular weight of the urethane (meth) acrylate oligomer is within the target range, and is obtained from an active energy ray-curable polymer composition containing the oligomer. From the viewpoint of making the cured film excellent in the balance between three-dimensional processing characteristics and stain resistance, it is preferably 1.0 or more, more preferably 1.5 or more, and 1.8 or more More preferably.
- the average number of hydroxyl groups per molecule of the polycarbonate diol is less than the lower limit, the molecular weight tends to be difficult to react with the diisocyanate, and the urethane (meth) acrylate oligomer having the target molecular weight cannot be obtained. There is a possibility that a cured film obtained from the active energy ray-curable polymer composition containing the oligomer cannot be made to have an excellent balance between three-dimensional processing characteristics and stain resistance.
- the average number of hydroxyl groups per molecule of the polycarbonate diol is preferably within 2.0 ⁇ 0.2, more preferably within 2.0 ⁇ 0.1, and 2.0. Is most preferred.
- the average number of hydroxyl groups per molecule of polycarbonate diol can be calculated from the number average molecular weight and hydroxyl value obtained by the method described later.
- the polycarbonate diol containing the structure (A) can be produced by a transesterification reaction between a diol component containing isosorbide and its stereoisomers such as isomannide or isoidite and a carbonic acid diester.
- the hydroxyalkyl (meth) acrylate constituting the urethane (meth) acrylate oligomer in the second aspect of the present invention has one or more hydroxyl groups, one or more (meth) acryloyl groups and carbon. It is a compound having 1 to 30 hydrocarbon groups. One or more hydroxyalkyl (meth) acrylates may be used.
- Examples of the hydroxyalkyl (meth) acrylate include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, and cyclohexane di
- Examples include reactants, mono (meth) acrylates of glycol, pentaerythritol tri (meth) acrylate, and dipentaerythritol penta (meth) acrylate.
- the number of carbon atoms is 2 to 4 between the (meth) acryloyl group and the hydroxyl group such as 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, and 4-hydroxybutyl (meth) acrylate.
- a hydroxyalkyl (meth) acrylate having an alkylene group is particularly preferred from the viewpoint of the mechanical strength of the resulting cured film.
- the molecular weight of the hydroxyalkyl (meth) acrylate is preferably 40 or more, more preferably 80 or more, and preferably 800 or less, more preferably 400 or less, from the viewpoint of the mechanical strength of the resulting cured film.
- the said molecular weight is a number average molecular weight.
- the urethane (meth) acrylate oligomer in the second aspect of the present invention may further contain other components in the raw material within the range where the effects of the present invention can be obtained.
- examples of such other components include a high molecular weight polyol having a number average molecular weight exceeding 500, a low molecular weight polyol having a number average molecular weight of 500 or less, and a chain extender, excluding the polycarbonate diol containing the structure (A).
- the high molecular weight polyol is a compound having a number average molecular weight exceeding 500 and having two or more hydroxyl groups (excluding polycarbonate diol containing the structure (A)).
- the high molecular weight polyol may be one kind or two or more kinds. Examples of such a high molecular weight polyol include polyether diol, polyester diol, polyether ester diol, polycarbonate diol other than polycarbonate diol containing the structure (A), polyolefin polyol, and silicon polyol.
- polyether diol examples include compounds obtained by ring-opening polymerization of a cyclic ether, such as polyethylene glycol, polypropylene glycol, and polytetramethylene glycol.
- polyester diol examples include compounds obtained by polycondensation of a dicarboxylic acid or an anhydride thereof and a low molecular weight diol, such as polyethylene adipate, polypropylene adipate, polybutylene adipate, polyhexamethylene adipate, and polybutylene sebacate. Can be mentioned.
- polyester diol examples include compounds obtained by ring-opening polymerization of a lactone with a low molecular weight diol, such as polycaprolactone and polymethylvalerolactone.
- dicarboxylic acid examples include succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and phthalic acid.
- dicarboxylic acid anhydrides include these anhydrides.
- low molecular weight diol examples include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, poly Tetramethylene glycol, 1,5-pentanediol, 1,6-hexanediol, 3-methyl-1,5-pentanediol, neopentyl glycol, 2-ethyl-1,3-hexaneglycol, 2,2,4- Trimethyl-1,3-pentanediol, 3, - dimethylol heptane, 1,9-nonanediol, 2-methyl-1,8-octanediol, cyclohexanedimethanol, and include bishydroxyethoxybenzene.
- polyether ester diol examples include a compound obtained by ring-opening polymerization of a cyclic ether to the polyester diol, and a compound obtained by polycondensation of the polyether diol and the dicarboxylic acid.
- poly (polytetramethylene ether) adipate includes Can be mentioned.
- Examples of the other polycarbonate diol include polybutylene carbonate, polyhexamethylene carbonate, poly (3-methyl-1,5-pentylene) obtained by deglycolization or dealcoholization from the low molecular weight diol and alkylene carbonate or dialkyl carbonate. ) Carbonate and the like and copolymers thereof.
- the polyolefin polyol is a polyolefin having two or more hydroxyl groups.
- the polyolefin polyol may be one kind or two or more kinds.
- Examples of the polyolefin polyol include polybutadiene polyol, hydrogenated polybutadiene polyol, and polyisoprene polyol.
- the silicon polyol is a silicone having two or more hydroxyl groups.
- the silicon polyol may be one kind or two or more kinds.
- Examples of the silicon polyol include polydimethylsiloxane polyol.
- the high molecular weight polyol is preferably the other polycarbonate diol.
- the number average molecular weight of the other polycarbonate diol is small, the workability is good without significantly increasing the viscosity of the urethane (meth) acrylate oligomer, and the active energy ray-curable polymer composition is cured. There is a tendency that the mechanical strength and stain resistance of the resulting cured product are improved.
- the number average molecular weight of the other polycarbonate diol is preferably 10,000 or less, more preferably 5,000 or less, and further preferably 2,000 or less.
- the low molecular weight polyol is a compound having a number average molecular weight of 500 or less and having two or more hydroxyl groups (excluding polycarbonate diol containing the structure (A)).
- the low molecular weight polyol may be one kind or two or more kinds. Examples of such low molecular weight polyols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, 1,2-propanediol, 1,3-propanediol, and 2-methyl-1,3-propane.
- the low molecular weight polyol is preferably an aliphatic diol or an alicyclic diol.
- the low molecular weight polyol may be ethylene glycol, propylene glycol, 1,2-propanediol, 1,3-propanediol, 2-methyl-1,3-propane.
- Polyol having 1 to 4 carbon atoms between hydroxyl groups such as diol, neopentyl glycol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol; 1,4-cyclohexanedimethanol, hydrogenated
- hydroxyl groups such as diol, neopentyl glycol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol; 1,4-cyclohexanedimethanol, hydrogenated
- an alicyclic polyol such as bisphenol A, in which two hydroxyl groups are present symmetrically across the alicyclic structure.
- the number average molecular weight of the low molecular weight polyol is preferably 50 or more from the viewpoint of the balance between elongation and elastic modulus as a cured product obtained by curing the active energy ray-curable polymer composition, 250 or less, more preferably 150 or less.
- the chain extender is a compound having two or more active hydrogens that react with an isocyanate group.
- One or more chain extenders may be used. Examples of such chain extenders include low molecular weight diamine compounds having a number average molecular weight of 500 or less, such as 2,4- or 2,6-tolylenediamine, xylylenediamine, 4,4′-diphenylmethanediamine, and the like.
- Aromatic diamines ethylenediamine, 1,2-propylenediamine, 1,6-hexanediamine, 2,2-dimethyl-1,3-propanediamine, 2-methyl-1,5-pentanediamine, 2,2,4 -Or aliphatic such as 2,4,4-trimethylhexanediamine, 2-butyl-2-ethyl-1,5-pentanediamine, 1,8-octanediamine, 1,9-nonanediamine, 1,10-decanediamine, etc.
- Diamines and 1-amino-3-aminomethyl-3,5,5-trimethylcyclohexane (IPDA), 4,4′-di And alicyclic diamines such as cyclohexylmethanediamine (hydrogenated MDA), isopropylidenecyclohexyl-4,4′-diamine, 1,4-diaminocyclohexane, 1,3-bisaminomethylcyclohexane, and tricyclodecanediamine. It is done.
- cyclohexylmethanediamine hydrogenated MDA
- isopropylidenecyclohexyl-4,4′-diamine 1,4-diaminocyclohexane
- 1,3-bisaminomethylcyclohexane 1,3-bisaminomethylcyclohexane
- tricyclodecanediamine tricyclodecanediamine
- the molecular weight or number average molecular weight of the above-mentioned raw material compound such as polycarbonate diol containing the structure (A) is the molecular weight from the chemical formula for compounds other than the polyol having a molecular weight distribution in a gel permeation chromatogram (hereinafter abbreviated as GPC). Or the number average molecular weight can be determined by GPC. Moreover, about the polyol which has molecular weight distribution by GPC, the number average molecular weight can be calculated
- NCO% ⁇ (B1-A1) ⁇ 0.5 ⁇ 42.02 ⁇ / (1 ⁇ 1000) ⁇ 100
- A1 Amount of hydrochloric acid aqueous solution required for titration of polyisocyanate-containing solution (mL)
- Number average molecular weight of polyisocyanate (42.02 / NCO%) ⁇ number of NCO groups contained in one molecule of polyisocyanate
- OH value ⁇ (B2-A2) ⁇ 0.5 ⁇ 56.11 ⁇ 1000 ⁇ / (2 ⁇ 1000)
- A2 Amount of sodium hydroxide aqueous solution required for titration of polyol-containing solution (mL)
- B2 Amount of sodium hydroxide aqueous solution required for titration of blank solution containing no polyol (mL)
- Number average molecular weight of polyol ⁇ (56.11 ⁇ 1000) / OH number ⁇ ⁇ number of functional groups
- the “number of functional groups” is the number of OH groups contained in one molecule of polyol.
- the amount of all isocyanate groups and the amount of all functional groups that react with isocyanate groups such as hydroxyl groups and amino groups are usually equimolar. , Expressed in mole percent.
- the use amount of the polyisocyanate, polycarbonate diol, hydroxyalkyl (meth) acrylate, and other raw material compounds in the urethane (meth) acrylate oligomer is the amount of all isocyanate groups in the urethane (meth) acrylate oligomer and that.
- the amount of all functional groups to be reacted is an equimolar amount or an amount that makes 50 to 200 mol% in terms of mol% of the functional group with respect to the isocyanate group.
- the amount of hydroxyalkyl (meth) acrylate used is hydroxyalkyl (meth) acrylate, polycarbonate diol, high molecular weight polyol, low molecular weight polyol, chain extender, etc. Is usually 10 mol% or more, preferably 15 mol% or more, more preferably 25 mol% or more, and usually 70 mol% or less, preferably 50 mol%, based on the total amount of the compound containing functional groups that react with isocyanate. The mol% or less. According to this ratio, the molecular weight of the urethane (meth) acrylate oligomer obtained can be controlled.
- the amount of the polycarbonate diol used is preferably 25 mol% or more, more preferably 50 mol% or more, still more preferably 70 mol% or more based on the total amount of the polycarbonate diol and the high molecular weight polyol. is there.
- the usage-amount of the said polycarbonate diol is larger than the said lower limit, there exists a tendency for the hardness and stain resistance of hardened
- the amount of the polycarbonate diol used is preferably 25 mol% or more, more preferably 50 mol% or more, based on the total amount of the polycarbonate diol, the high molecular weight polyol, and the low molecular weight polyol. More preferably, it is 70 mol% or more.
- the usage-amount of the said polycarbonate diol is larger than a lower limit, it will become the tendency for the elongation of a hardened
- the urethane (meth) acrylate oligomer is a reaction product containing a chain extender
- the total amount of the polycarbonate diol, the high molecular weight polyol, and the total compound of the low molecular weight polyol and the chain extender are combined.
- the amount of all polyols used is preferably 70 mol% or more, more preferably 80 mol% or more, still more preferably 90 mol% or more, and particularly preferably 95 mol% or more with respect to the amount used.
- the total polyol amount is larger than the lower limit value, the liquid stability tends to be improved, which is preferable.
- the active energy ray-curable polymer composition according to the second aspect of the present invention preferably has a molecular weight between calculated network crosslinking points of 500 to 10,000.
- the molecular weight between calculated network cross-linking points of the composition is the average molecular weight between active energy ray reactive groups (hereinafter sometimes referred to as “cross-linking points”) that form a network structure in the entire composition. Represents a value.
- the molecular weight between the calculated network cross-linking points has a correlation with the network area at the time of forming the network structure.
- a compound having only one active energy ray reactive group hereinafter, sometimes referred to as “monofunctional compound”
- a network structure is formed when a compound having two or more reactive groups (hereinafter sometimes referred to as “polyfunctional compound”) reacts.
- the active energy ray reactive group of the polyfunctional compound is a crosslinking point
- the calculation of the molecular weight between the calculated network crosslinking points is centered on the polyfunctional compound having the crosslinking point, and the monofunctional compound has the polyfunctional compound.
- the molecular weight between the crosslinking points is treated as having an effect of extending the molecular weight, and the molecular weight between the calculation network crosslinking points is calculated.
- the calculation of the molecular weight between the calculation network crosslinking points is performed on the assumption that all the active energy ray reactive groups have the same reactivity and that all the active energy ray reactive groups react by irradiation with the active energy ray. .
- the molecular weight between the calculated network crosslinking points is twice the average molecular weight per active energy ray reactive group of the polyfunctional compound.
- the average value of the molecular weights between the calculated network cross-linking points of each of the above single systems with respect to the total number of active energy ray reactive groups contained in the composition is This is the molecular weight between the calculated network crosslinking points of the composition.
- a monofunctional compound When a monofunctional compound is included in the composition, a molecule formed by calculation and equimolar to the active energy ray reactive group (that is, the crosslinking point) of the polyfunctional compound, and the monofunctional compound linked to the crosslinking point Assuming that the reaction takes place in the middle of the chain, the elongation of the molecular chain by the monofunctional compound at one cross-linking point is the total molecular weight of the monofunctional compound, the total number of reactive energy ray reactive groups of the polyfunctional compound in the composition. Half of the value divided by.
- the amount extended by the monofunctional compound with respect to the calculated molecular cross-linking molecular weight in the polyfunctional compound is: This is a value obtained by dividing the total molecular weight of the monofunctional compound by the total number of reactive energy ray reactive groups of the polyfunctional compound in the composition.
- the composition in the mixture of monofunctional compounds M A molar molecular weight W A, and f B functional compound M B mol molecular weight W B, and f C functional compound M C mol molecular weight W C, the composition
- the molecular weight between calculated network cross-linking points of the product can be expressed by the following formula.
- the molecular weight between calculated network crosslinking points of the active energy ray-curable polymer composition according to the second aspect of the present invention is preferably 500 or more, more preferably 800 or more, and 1,000 or more. More preferably, it is preferably 10,000 or less, more preferably 8,000 or less, further preferably 6,000 or less, even more preferably 4,000 or less, It is particularly preferably 3,000 or less.
- the molecular weight between calculated network cross-linking points is preferably 10,000 or less because the cured film obtained from the composition has good contamination resistance and tends to have a good balance between three-dimensional workability and contamination resistance. Moreover, it is preferable that the molecular weight between the calculation network cross-linking points is 500 or more because the three-dimensional workability of the obtained cured film becomes good and the balance between the three-dimensional workability and the stain resistance tends to be excellent. This is because the three-dimensional workability and stain resistance depend on the distance between the cross-linking points in the network structure, and as this distance increases, the structure becomes flexible and easily stretched, and the three-dimensional workability is superior. This is presumed to be because the structure becomes a strong structure and is excellent in stain resistance.
- the urethane (meth) acrylate oligomer according to the second aspect of the present invention can be produced by addition-reacting the polycarbonate diol containing the structure (A) and the hydroxyalkyl (meth) acrylate to the polyisocyanate. it can.
- the urethane (meth) acrylate oligomer according to the second aspect of the present invention includes the polyisocyanate, It can be produced by addition reaction of other raw material compounds other than those described above. These addition reactions can be performed by any known method. Examples of such a method include the following methods (1) to (3).
- An isocyanate-terminated urethane prepolymer obtained by reacting components other than the hydroxyalkyl (meth) acrylate under conditions such that the isocyanate group becomes excessive is obtained, and then the isocyanate-terminated urethane prepolymer and the hydroxyalkyl ( A prepolymer method in which a (meth) acrylate is reacted. (2) One-shot method in which all components are added simultaneously and reacted.
- the urethane prepolymer is obtained by urethanizing the polyisocyanate and the polycarbonate diol, and the urethane (meth) acrylate oligomer has an isocyanate group at the terminal.
- the method (1) is preferred from the viewpoint that the molecular weight can be controlled and acryloyl groups can be introduced at both ends because the urethane prepolymer and the hydroxyalkyl (meth) acrylate have a urethanation reaction.
- a solvent can be used for the purpose of adjusting the viscosity.
- the solvent may be one kind or two or more kinds, and any known solvent can be used as long as the effect of the present invention is obtained.
- Preferred solvents include toluene, xylene, ethyl acetate, butyl acetate, cyclohexanone, methyl ethyl ketone, and methyl isobutyl ketone.
- a solvent can be normally used in less than 300 mass parts with respect to 100 mass parts of active energy ray-curable polymer compositions.
- the total content of the urethane (meth) acrylate oligomer and its raw material is preferably 20% by mass or more, and 40% by mass or more based on the total amount. Is more preferable. In addition, the upper limit of this total content is 100 mass%. It is preferable for the total content of the urethane (meth) acrylate oligomer and its raw materials to be 20% by mass or more because the reaction rate tends to increase and the production efficiency tends to improve.
- the reaction temperature is usually 20 ° C. or higher, preferably 40 ° C. or higher, and more preferably 60 ° C. or higher.
- a reaction temperature of 20 ° C. or higher is preferable because the reaction rate increases and the production efficiency tends to improve.
- it is 120 degrees C or less normally, and it is preferable that it is 100 degrees C or less.
- the reaction temperature is preferable for the reaction temperature to be 120 ° C. or lower because side reactions such as an allohanato reaction hardly occur.
- the reaction temperature is 70 ° C. or less from the viewpoint of preventing the reaction of the (meth) acryloyl group.
- the reaction time is usually about 5 to 20 hours.
- the addition reaction catalyst in the production of the urethane (meth) acrylate oligomer can be selected from the range in which the effects of the present invention can be obtained.
- the addition reaction catalyst may be one type or two or more types. Of these, the addition reaction catalyst is preferably dioctyltin dilaurate from the viewpoints of environmental adaptability, catalytic activity, and storage stability.
- a polymerization inhibitor can be used in combination.
- a polymerization inhibitor can be selected from the range in which the effects of the present invention can be obtained.
- phenols such as hydroquinone, hydroquinone monoethyl ether and dibutylhydroxytoluene, amines such as phenothiazine and diphenylamine, and dibutyldithiocarbamic acid.
- Copper salts such as copper, manganese salts such as manganese acetate, nitro compounds, and nitroso compounds.
- One or two or more polymerization inhibitors may be used. Of these, phenols are preferable as the polymerization inhibitor.
- the charging ratio of each raw material component is substantially equal to the composition of the urethane (meth) acrylate oligomer according to the second aspect of the present invention described above.
- the charging ratio of each raw material component is the same as the composition of the urethane (meth) acrylate oligomer according to the second aspect of the present invention described above.
- the active energy ray-curable polymer composition according to the second aspect of the present invention may further contain other components other than the urethane (meth) acrylate-based oligomer as long as the effects of the present invention are obtained. Good.
- other components include an active energy ray reactive monomer, an active energy ray curable oligomer, a polymerization initiator, a photosensitizer, an additive, and a solvent.
- the content of the urethane (meth) acrylate oligomer is the active energy ray-reactive component containing the urethane (meth) acrylate oligomer. It is preferable that it is 40 mass% or more with respect to the total amount, and it is more preferable that it is 60 mass% or more. In addition, the upper limit of this content is 100 mass%.
- the content of the urethane (meth) acrylate oligomer is 40% by mass or more, the curability is good, and the mechanical strength when the cured product is not too high, and the three-dimensional workability tends to be improved. This is preferable.
- the content of the urethane (meth) acrylate oligomer is preferably higher in terms of elongation and film-forming property. On the other hand, a smaller amount is preferable in terms of lowering the viscosity. From such a viewpoint, the content of the urethane (meth) acrylate oligomer is 50% by mass or more based on the total amount of all components including other components in addition to the active energy ray-reactive component. Preferably, it is 70 mass% or more. In addition, it is preferable that the upper limit of content of the said urethane (meth) acrylate type oligomer is 100 mass%, and the said content is below it.
- the total content of the active energy ray-reactive component including the urethane (meth) acrylate oligomer is as a composition. From the standpoint of excellent curing speed and surface curability and no tack remaining, it is preferably 60% by mass or more, more preferably 80% by mass or more, and 90% by mass with respect to the total amount of the composition. More preferably, it is 95% by mass or more. The upper limit of the content is 100% by mass.
- any known active energy ray-reactive monomer can be used as the active energy ray-reactive monomer as long as the effects of the present invention are obtained.
- These active energy ray reactive monomers are used for the purpose of adjusting the hydrophilicity / hydrophobicity of urethane (meth) acrylate oligomers and the physical properties such as hardness and elongation of the cured product when the resulting composition is cured. Is done.
- the active energy ray reactive monomer may be one kind or two or more kinds.
- active energy ray reactive monomers examples include vinyl ethers, (meth) acrylamides, and (meth) acrylates, and specific examples include styrene, ⁇ -methylstyrene, ⁇ -chlorostyrene.
- Aromatic vinyl monomers such as vinyltoluene and divinylbenzene; vinyl such as vinyl acetate, vinyl butyrate, N-vinylformamide, N-vinylacetamide, N-vinyl-2-pyrrolidone, N-vinylcaprolactam, and divinyl adipate Ester monomers; Vinyl ethers such as ethyl vinyl ether and phenyl vinyl ether; Allyl compounds such as diallyl phthalate, trimethylolpropane diallyl ether, and allyl glycidyl ether; Acrylamide, N, N-dimethylacrylamide, N, (Meth) acrylamides such as N-dimethylmethacrylamide, N-methylolacrylamide, N-methoxymethylacrylamide, N-butoxymethylacrylamide, Nt-butylacrylamide, acryloylmorpholine, methylenebisacrylamide; (meth) acrylic acid, (Meth) methyl acrylate, (meth
- the content of the active energy ray-reactive monomer is used for adjusting the viscosity of the composition and adjusting physical properties such as hardness and elongation of the cured product. From the viewpoint, it is preferably present at 50% by mass or less, more preferably 30% by mass or less, further preferably 20% by mass or less, and more preferably 10% by mass or less, with respect to the total amount of the composition. Even more preferably.
- the active energy ray-curable oligomer may be one type or two or more types.
- Examples of the active energy ray-curable oligomer include epoxy (meth) acrylate oligomers and acrylic (meth) acrylate oligomers.
- the content of the active energy ray-reactive oligomer is selected from the viewpoint of adjusting physical properties such as hardness and elongation of the cured product. It is preferably present at 50% by mass or less, more preferably 30% by mass or less, further preferably 20% by mass or less, and even more preferably 10% by mass or less, based on the total amount. preferable.
- the polymerization initiator is mainly used for the purpose of improving the initiation efficiency of a polymerization reaction that proceeds by irradiation with active energy rays such as ultraviolet rays and electron beams.
- a photoradical polymerization initiator which is a compound having a property of generating radicals by light is generally used, and any known photoradical polymerization initiator can be used as long as the effects of the present invention can be obtained. It is.
- One or more polymerization initiators may be used. Furthermore, you may use together radical photopolymerization initiator and a photosensitizer.
- photo radical polymerization initiator examples include benzophenone, 2,4,6-trimethylbenzophenone, 4,4-bis (diethylamino) benzophenone, 4-phenylbenzophenone, methyl orthobenzoylbenzoate, thioxanthone, diethylthioxanthone, isopropylthioxanthone, chloro Thioxanthone, 2-ethylanthraquinone, t-butylanthraquinone, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethyl ketal, 1-hydroxycyclohexyl phenyl ketone, benzoin methyl ether, benzoin ethyl Ether, benzoin isopropyl ether, benzoin isobutyl ether, methyl benzoyl formate, 2-methyl-1- [4- Methylthio) phenyl] -2-morpholino
- -Trimethylbenzoyldiphenylphosphine oxide and 2-hydroxy-1- [4- [4- (2-hydroxy-2-methyl-propionyl) -benzyl] -phenyl] -2-methyl-propan-1-one 1-hydroxycyclohexyl phenyl ketone, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, and 2-hydroxy-1- [4- [4- (2-hydroxy-2-methyl-propionyl) -benzyl] -phenyl ] 2-Methyl-propan-1-one is preferred.
- the active energy ray-curable polymer composition contains a compound having a cationic polymerizable group such as an epoxy group together with a radical polymerizable group, as a polymerization initiator, a photocation together with the above-mentioned photo radical polymerization initiator.
- a polymerization initiator may be included. Any known cationic photopolymerization initiator can be used as long as the effects of the present invention can be obtained.
- the content of these photopolymerization initiators in the active energy ray-curable polymer composition according to the second aspect of the present invention is 10 parts by mass with respect to a total of 100 parts by mass of the active energy ray-reactive components. It is preferably present below, and more preferably 5 parts by mass or less. It is preferable for the content of the photopolymerization initiator to be 10 parts by mass or less because the mechanical strength is not easily lowered by the initiator decomposition product.
- the photosensitizer can be used for the same purpose as the polymerization initiator.
- One or more photosensitizers may be used, and any of the known photosensitizers can be used as long as the effects of the present invention are obtained.
- Examples of such a photosensitizer include ethanolamine, diethanolamine, triethanolamine, N-methyldiethanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, amyl 4-dimethylaminobenzoate, And 4-dimethylaminoacetophenone.
- the content of the photosensitizer is 10 parts by mass with respect to a total of 100 parts by mass of the active energy ray-reactive components. It is preferably present below, and more preferably 5 parts by mass or less. It is preferable for the content of the photosensitizer to be 10 parts by mass or less, since it is difficult for mechanical strength to decrease due to a decrease in crosslink density.
- additive various materials added to a composition used for the same purpose can be used as an additive within a range where the effects of the present invention can be obtained.
- One or more additives may be used. Examples of such additives include glass fiber, glass bead, silica, alumina, calcium carbonate, mica, zinc oxide, titanium oxide, mica, talc, kaolin, metal oxide, metal fiber, iron, lead, and metal powder.
- Fillers such as carbon fibers, carbon black, graphite, carbon nanotubes, carbon materials such as fullerenes such as C60 (fillers and carbon materials may be collectively referred to as “inorganic components”); Agent, heat stabilizer, UV absorber, HALS, anti-fingerprint agent, surface hydrophilizing agent, antistatic agent, slipperiness imparting agent, plasticizer, mold release agent, antifoaming agent, leveling agent, anti-settling agent, surface activity Agents, thixotropy imparting agents, lubricants, flame retardants, flame retardant aids, polymerization inhibitors, fillers, silane coupling agents and other modifiers; pigments, dyes, color modifiers such as hue modifiers; and monomers And / or oligomer thereof, or a curing agent required for the synthesis of inorganic components, catalysts, curing accelerators like; and the like.
- Agent heat stabilizer, UV absorber, HALS, anti-fingerprint agent, surface hydrophilizing agent, antistatic agent, slipperi
- the content of the additive is 10 parts by mass or less with respect to a total of 100 parts by mass of the active energy ray reactive components. It is preferably present and more preferably 5 parts by mass or less. It is preferable for the content of the additive to be 10 parts by mass or less, since it is difficult for mechanical strength to decrease due to a decrease in crosslink density.
- the solvent is, for example, active energy ray curable according to the second aspect of the present invention, depending on the coating method for forming a coating film of the active energy ray curable polymer composition according to the second aspect of the present invention. It can be used for the purpose of adjusting the viscosity of the conductive polymer composition.
- the solvent may be one kind or two or more kinds, and any known solvent can be used as long as the effect of the present invention is obtained.
- Preferred solvents include toluene, xylene, ethyl acetate, butyl acetate, isopropanol, isobutanol, cyclohexanone, methyl ethyl ketone, and methyl isobutyl ketone.
- a solvent can be normally used in less than 400 mass parts with respect to 100 mass parts of active energy ray-curable polymer compositions.
- an E-type viscometer (rotor 1 ° 34 ′
- the viscosity at 25 ° C. in ⁇ R24) is preferably 10 mPa ⁇ s or more, more preferably 100 mPa ⁇ s or more from the viewpoints of handleability, coatability, moldability, three-dimensional formability, etc. On the other hand, it is preferably 100,000 mPa ⁇ s or less, and more preferably 50,000 mPa ⁇ s or less.
- the adjustment of the viscosity of the active energy ray-curable polymer composition can be adjusted by, for example, the content of the urethane (meth) acrylate oligomer, the type of the optional component, the blending ratio thereof, and the like.
- Examples of the coating method of the active energy ray-curable polymer composition include bar coater method, applicator method, curtain flow coater method, roll coater method, spray method, gravure coater method, comma coater method, reverse roll coater method, lip
- Known methods such as a coater method, a die coater method, a slot die coater method, an air knife coater method, a dip coater method and the like can be applied.
- a bar coater method and a gravure coater method are preferable.
- the active energy ray-curable polymer composition according to the second aspect of the present invention can be formed into a cured film by irradiating it with active energy rays.
- an electron beam irradiation apparatus an ultrahigh pressure mercury lamp, a high pressure mercury lamp, a medium pressure mercury lamp, a low pressure mercury lamp, a metal halide lamp, Ar Lasers, He—Cd lasers, solid lasers, xenon lamps, high frequency induction mercury lamps, sunlight, etc. are suitable.
- the irradiation amount of the active energy ray can be appropriately selected according to the type of the active energy ray.
- the irradiation amount is preferably 1 to 10 Mrad.
- ultraviolet irradiation it is preferably 50 to 1,000 mJ / cm 2 .
- the atmosphere during curing may be air, an inert gas such as nitrogen or argon.
- the thickness of the cured film according to the second aspect of the present invention is appropriately determined according to the intended use, but the lower limit is preferably 1 ⁇ m, more preferably 3 ⁇ m, and particularly preferably 5 ⁇ m.
- the upper limit is preferably 200 ⁇ m, more preferably 100 ⁇ m, particularly preferably 50 ⁇ m, and most preferably 20 ⁇ m.
- a laminate having a layer made of the cured film according to the second aspect of the present invention can be obtained on the substrate.
- the laminated body which concerns on the 2nd aspect of this invention will not be specifically limited if it has the layer which consists of a cured film which concerns on the 2nd aspect of this invention, It concerns on a base material and the 2nd aspect of this invention You may have layers other than a cured film between the base material and the cured film which concerns on the 2nd aspect of this invention, and you may have on the outer side.
- the said laminated body may have multiple layers of the cured film which concerns on a base material or the 2nd aspect of this invention.
- all layers are laminated in an uncured state and then cured with active energy rays, and the lower layer is cured with active energy rays or semi-cured.
- a known method such as a method in which the upper layer is applied after curing with active energy rays, and a method in which each layer is applied to a release film or a base film, and then the layers are bonded together in an uncured or semi-cured state.
- a method of curing with active energy rays after laminating in an uncured state is preferable.
- a known method such as sequential coating in which the upper layer is applied after the lower layer is applied, or simultaneous multilayer coating in which two or more layers are simultaneously applied from multiple slits is applied. Yes, but not necessarily.
- the substrate examples include various shapes such as polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyolefins such as polypropylene and polyester, various plastics such as nylon, polycarbonate, and (meth) acrylic resin, or plates formed of metal.
- polyesters such as polyethylene terephthalate and polybutylene terephthalate
- polyolefins such as polypropylene and polyester
- plastics such as nylon, polycarbonate, and (meth) acrylic resin, or plates formed of metal.
- the article is mentioned.
- the cured film according to the second aspect of the present invention can be a film having excellent stain resistance and hardness against general household contaminants such as ink and ethanol, and the cured film according to the second aspect of the present invention.
- the laminate according to the second aspect of the present invention in which is used as a coating on various substrates can be excellent in design and surface protection.
- the active energy ray-curable polymer composition according to the second aspect of the present invention is capable of following the deformation during three-dimensional processing, considering the molecular weight between the calculated network crosslinking points, the elongation at break, A cured film having both mechanical strength, stain resistance, and hardness can be provided.
- the elongation at break of the cured film according to the second aspect of the present invention was determined by cutting the cured film according to the second aspect of the present invention to a width of 10 mm and using a Tensilon tensile tester (Tensilon UTM-III-, manufactured by Orientec Co., Ltd.). 100), a value measured by performing a tensile test under the conditions of a temperature of 140 ° C., a tensile speed of 50 mm / min, and a distance between chucks of 50 mm is preferably 50% or more, more preferably 75% or more. Preferably, it is more preferably 100% or more, and particularly preferably 150% or more.
- the breaking strength of the cured film according to the second aspect of the present invention was determined by cutting the cured film of the present invention to a width of 10 mm and using a Tensilon tensile tester (Orientec, Tensilon UTM-III-100).
- the value measured by performing a tensile test under the conditions of 23 ° C., a tensile speed of 50 mm / min, and a distance between chucks of 50 mm is preferably 40 MPa or more, more preferably 50 MPa or more, and further preferably 60 MPa or more. preferable.
- the elastic modulus of the cured film according to the second aspect of the present invention was determined by cutting the cured film of the present invention into a width of 10 mm and using a Tensilon tensile tester (Orientec, Tensilon UTM-III-100)
- the value measured by performing a tensile test under the conditions of 23 ° C., a tensile speed of 50 mm / min, and a distance between chucks of 50 mm is preferably 100 MPa or more, more preferably 200 MPa or more, and further preferably 500 MPa or more. It is particularly preferably 1,000 MPa or more, and most preferably 2,000 MPa or more.
- the pencil hardness of the cured film according to the second aspect of the present invention is determined using a wear tester (manufactured by Shinto Kagaku; Haydon Dynamic strain amplifier 3K-34B) and hardness 6B, 5B, 4B, 3B, 2B, B , HB, F, H, 2H pencil (manufactured by Mitsubishi Pencil Co., Ltd .; product number UNI, Nikkiso inspection completed, for pencil scratch value test) under the condition of 23 ° C./53% RH, weight 1 kgf (9.8 N) ),
- the value measured by running 1 cm at a scratching speed of 25 mm / min is preferably HB or more, more preferably F or more, and even more preferably H or more.
- the cured film according to the second aspect of the present invention has a stain resistance of 75% by mass ethanol aqueous solution, red aqueous ink (pilot ink cartridge / red / IRF-12S-R) or blue aqueous (pilot company).
- Ink cartridge ink / blue black / IRF-12S-BB) (hereinafter collectively referred to as “contaminant”) 0.03 g was dropped and contacted, and 75% by mass at room temperature (23 ° C.)
- the degree of contamination after wiping off contaminants with absorbent cotton containing water is evaluated visually.
- the amount of contaminants after wiping is preferably a very small amount, more preferably so small that it is not visible.
- the cured film according to the second aspect of the present invention and the laminate according to the second aspect of the present invention can be used as a coating substitute film, for example, interior / exterior building materials, automobiles, home appliances, etc. It can be effectively applied to various members.
- the active energy ray-curable polymer composition according to the second aspect of the present invention is cured to form a cured film
- the cured film is excellent in stain resistance and hardness against general household contaminants such as ink and ethanol. Designability or surface protection can be imparted by using the cured film as a coating on various substrates.
- the active energy ray-curable polymer composition according to the second aspect of the present invention is capable of following the deformation during three-dimensional processing, considering the molecular weight between the calculated network crosslinking points, the elongation at break, A cured film having both mechanical strength, stain resistance, and hardness can be provided. Moreover, it is expected that the active energy ray-curable polymer composition according to the second aspect of the present invention can easily produce a thin film-like resin sheet by one-layer coating.
- Tosoh 8020 manufactured by Tosoh Corporation
- Eluent THF (tetrahydrofuran)
- Flow rate 0.5 mL / min
- ⁇ Terminal phenoxide amount, ether bond amount, raw material diol amount, phenol amount> The product was dissolved in CDCl 3 , 400 MHz 1 H-NMR (AVANCE400 manufactured by BRUKER) was measured, and the product was calculated from the integrated value of the signal of each component.
- the detection limit is 200 ppm as the weight of the terminal phenoxide, 500 ppm as the weight of the ether group, 100 ppm as the weight of the starting diol or phenol, 0.1 wt% as isosorbide, and o-dichlorobenzene. As 200 ppm.
- the ratio of terminal phenoxide is the integral of one proton of terminal phenoxide and one proton of the entire terminal (the structure of the molecular chain terminal (A), the structure of the molecular chain terminal (B), and the total of the three structures of terminal phenoxide).
- the detection limit of terminal phenoxide is 0.05% with respect to the entire terminal.
- the structure (A) at the end of the molecular chain is two isomers, which are referred to as “(A) terminal 1” and “(A) terminal 2”, respectively. Further, the (A) -derived structural portion in the polycarbonate diol other than the terminal is referred to as “in (A)”. Similarly, regarding (B), “(B) end” and “(B) medium” are used. Considering the number of each proton, calculate the number according to the following formula.
- the number of each structural formula in the molecular chain described in the formula (I) is expressed as follows.
- Number of molecular chain terminal structures (A) (A) terminal 1+ (A) terminal 2
- the terminal (A) rate (I) is obtained by applying the above value to the formula (I).
- a phthalating agent was prepared by dissolving 14 g of phthalic anhydride in 100 mL of pyridine. In 5 mL of this phthalating agent, 1.50 to 1.60 g of polycarbonate diol was dissolved and reacted at 100 ° C. for 1 hour. The reaction mixture was cooled to room temperature and diluted with 25 mL of a THF / H 2 O (75/25) mixed solvent. This solution was titrated with a 1N aqueous sodium hydroxide solution to determine the amount of the aqueous sodium hydroxide solution used until the inflection point was detected (this test).
- Average number of hydroxyl groups per molecule [(Number average molecular weight) ⁇ (Hydroxyl value)] / [1000 ⁇ (KOH molecular weight)]
- the number average molecular weight was the value measured by 1 H-NMR, and the hydroxyl value was the value calculated by titration.
- ⁇ Film creep characteristics> A polyurethane film having a thickness of 100 ⁇ m was formed, cut into a strip shape having a width of 10 mm, and a reference line having a width of 50 mm was provided as a sample. A load of 1 MPa was applied to the sample in the length direction at a temperature of 23 ° C. and a relative humidity of 55% RH, and the load was removed after 16 hours. The length between the reference lines (Lmm) was measured, and the creep characteristic ((L-50) / 50) ⁇ 100 (%) was determined.
- ⁇ Film friction test> A polyurethane film having a thickness of 100 ⁇ m was formed, this film was fixed to a testing machine (type II, Gakushin type), and a friction test was performed 500 times at maximum with a load of 4.9 N according to JIS L0849.
- ⁇ Urethaneization speed test> The reactivity of the obtained polycarbonate diol in the urethanization reaction is calculated based on the molar equivalent of the polycarbonate diol to be added, which is estimated from the OH value of the polycarbonate diol after being made into a solution of N, N-dimethylformamide (hereinafter DMF). 0.98 times the amount of diphenylmethane diisocyanate (hereinafter referred to as MDI) was added at a predetermined temperature, and the load value (torque) was observed by changing the stirring motor load (unit V) when the stirring was maintained at 100 rpm. . The torque was read as a difference obtained by subtracting the value before adding MDI.
- MDI diphenylmethane diisocyanate
- the motor used was a stirrer Magella Z-1210 from Tokyo Rika Kikai Co., Ltd.
- the polymerization reaction vessel used was a separable flask having a capacity of 500 mL, and the stirring blades used were four blades combining two squid types.
- the containers to be used were thoroughly washed and dried, and the series of operations was performed under conditions of nitrogen flow or nitrogen filling, avoiding contact with air as much as possible.
- the detection limit of the motor load value is 5V. However, when the motor load value exceeds about 2V, the viscosity of the polymer solution is too high, and the polymer solution after shearing by the stirring blades does not return due to gravity and partially becomes idle, so the correct motor load value is measured. could not.
- the urethane (meth) acrylate oligomers in each experimental example and reference experimental example contain three types of components of polyisocyanate, polycarbonate diol, and hydroxyalkyl (meth) acrylate as constituent units. Since these structural units are formed while maintaining the molecular weight of each component in the urethane (meth) acrylate oligomer, in this experimental example and the reference experimental example, a urethane (meth) acrylate oligomer is generated.
- the average molecular weight of the urethane (meth) acrylate oligomer was calculated by the sum of the product of the molar ratio of each component up to and the molecular weight of each component.
- the molecular weight between the calculated network crosslinking points in each experimental example and reference experimental example is that the reactive groups for the hydroxyalkyl (meth) acrylate in the prepolymer of the urethane acrylate oligomer are isocyanate groups at both ends of the prepolymer, and both ends of the prepolymer Since the hydroxyalkyl (meth) acrylate bonded with urethane bond is added by radical polymerization, the crosslinking points of the urethane acrylate oligomer in the composition are located at both ends of the urethane (meth) acrylate oligomer (meth) Since it becomes an acryloyl group, and the active energy ray-curable polymer composition in the following experimental examples and reference experimental examples becomes a bifunctional (polyfunctional) compound single-system composition described above, it was obtained from the following formula. .
- ⁇ Mechanical properties of cured film> The cured film was cut to a width of 10 mm, and a temperature of 23 ° C., a relative humidity of 53%, a tensile speed of 50 mm / min, and a distance between chucks of 50 mm using a Tensilon tensile tester (Orientec, Tensilon UTM-III-100). A tensile test was performed under the conditions, and the elongation at break, strength at break and tensile elastic modulus were measured.
- contaminants a 10% by mass HCl aqueous solution or a 10% by mass NaOH aqueous solution
- ⁇ Pencil hardness of cured film> Using a wear tester (manufactured by Shinto Kagaku; Haydon Dynamic strain amplifier 3K-34B) and having a hardness of 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H (Mitsubishi Pencil Co., Ltd .; (Product No. UNI, Nikko-inspected, for pencil scratch value test) were evaluated under the conditions of 23 ° C./53% RH. A wear tester was equipped with a hardness of 6B, and was run for 1 cm at a load of 1 kgf (9.8 N) and a scratch rate of 25 mm / min, and the presence or absence of running traces was visually confirmed. When no running trace was observed, the pencil was replaced with a one-step hard pencil, and the same operation was repeated. The hardest pencil hardness at which no running trace was observed was taken as the evaluation result.
- Example 1-1 In a 1 L glass separable flask equipped with a stirrer, distillate trap, and pressure regulator, 1,6-hexanediol: 195.9 g, isosorbide: 242.3 g, diphenyl carbonate: 658.2 g, magnesium acetate tetrahydrate Product: 4.3 mg was added, and nitrogen gas substitution was carried out. The temperature was raised to an internal temperature of 160 ° C., and the contents were dissolved by heating and reacted for 1 hour. Thereafter, the reaction was performed while distilling off and removing phenol and unreacted diol while lowering the pressure to 0.27 kPa over 2 hours. Next, nitrogen gas was bubbled at 180 ° C.
- the number average molecular weight (Mn) determined from the hydroxyl value of the polycarbonate diol contained in the polycarbonate diol product is 1,940, the molecular weight distribution (Mw / Mn) is 1.96, and the (A) / (B) ratio (isosorbide / 1,6-hexanediol) is 49/51, and the terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 73/27, calculated by (I) above. Terminal (A) ratio (I) was 1.46.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature. Further, the content of isosorbide as a raw material diol is 0.6% by weight, the phenol content is 0.02% by weight, the phenoxide terminal is 2% of the total terminal, and a polymer containing an ether bond other than the isosorbide skeleton, o- Dichlorobenzene was not detected. The residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 2-1 In a 1 L glass separable flask equipped with a stirrer, distillate trap, and pressure regulator, 1,6-hexanediol: 293.9 g, isosorbide: 121.2 g, diphenyl carbonate: 658.2 g, magnesium acetate tetrahydrate Product: 4.3 mg was charged and replaced with nitrogen gas. The temperature was raised to an internal temperature of 160 ° C., and the contents were dissolved by heating and reacted for 60 minutes. Thereafter, the reaction was performed while distilling off and removing phenol and unreacted diol while lowering the pressure to 0.27 kPa over 2 hours. Next, nitrogen gas bubbling was performed at 180 ° C.
- the number average molecular weight (Mn) determined from the hydroxyl value of the polycarbonate diol contained in the polycarbonate diol product is 2,100, the molecular weight distribution (Mw / Mn) is 1.96, and the (A) / (B) ratio is 24. / 76, the terminal (A) / (B) ratio was 62/38, and the terminal (A) ratio (I) was 2.58.
- the property of the obtained polycarbonate diol product was a viscous liquid at room temperature, and fluidity was observed.
- the viscosity (50 ° C.) was 24 Pa ⁇ s.
- the content of isosorbide as a raw material diol was 0.5% by weight, and a polymer having a phenoxide terminal, a polymer containing an ether bond other than an isosorbide skeleton, phenol and o-dichlorobenzene were not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 3-1 In a 1 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure regulator, 1,6-hexanediol: 218.5 g, isosorbide: 264.4 g, diphenyl carbonate: 620.0 g, magnesium acetate tetrahydrate Product: 4.7 mg was put and nitrogen gas was replaced. The temperature was raised to an internal temperature of 160 ° C., and the contents were dissolved by heating and reacted for 1 hour. Thereafter, the reaction was performed while distilling off and removing phenol and unreacted diol while lowering the pressure to 0.27 kPa over 2 hours. Next, nitrogen gas bubbling was performed at 160 ° C.
- the number average molecular weight (Mn) determined from the hydroxyl value of the polycarbonate diol contained in the polycarbonate diol product is 880, the ratio (A) / (B) (isosorbide / 1,6-hexanediol) is 49/51, and the terminal The (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 60/40, and the terminal (A) ratio (I) calculated in (I) was 1.22. It was.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature. Further, the content of isosorbide as a raw material diol was 2.0% by weight, the phenol content was 0.06% by weight, and a polymer having a phenoxide terminal or a polymer containing an ether bond other than the isosorbide skeleton was not detected. The residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from the hydroxyl value of the polycarbonate diol contained in the polycarbonate diol product after the thin-film distillation is 900, and the (A) / (B) ratio (isosorbide / 1,6-hexanediol) is 76. / 24, terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 91/9, and terminal (A) ratio (I) calculated in (I) is 1 .20.
- the property of the polycarbonate diol product after thin film distillation was a light yellow solid at room temperature.
- the content of isosorbide as a raw material diol was 2.5% by weight, and a phenol content, a polymer having a phenoxide terminal, and a polymer containing an ether bond other than the isosorbide skeleton were not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 1-2 Add 78.3 g of the polycarbonate diol produced in Experimental Example 1-1, which has been heated to a melting point (eg, 120 ° C.) or higher in advance to a 1 L separable flask, and immerse the flask in an oil bath set at 55 ° C. while heating.
- Formamide (DMF) was added and dissolved.
- Stirring was started at about 100 rpm, and 1,4-butanediol: 3.6 g was added, and tin stearate: 0.014 g was added dropwise.
- MDI diphenylmethane diisocyanate
- the tensile elongation at break was 215% and the 100% modulus was 53 MPa. Further, the creep property of this film was 2%, the scratch hardness (pencil method) was 2B to B, and the surface appearance after 500 reciprocations was almost unchanged in the friction test, and the weight reduction rate was 1%.
- Example 2-2 A polyurethane having a solid content concentration of 30% by weight was reacted in the same manner as in Experimental Example 1-2 except that the polycarbonate diol prepared in Experimental Example 2-1 was used instead of the polycarbonate diol prepared in Experimental Example 1-1. A solution was obtained. This polyurethane solution was applied on a polyethylene film with a doctor blade with a uniform film thickness and dried with a dryer to obtain a polyurethane film.
- Table 2 shows the physical properties of the polycarbonate diol products obtained in Experimental Example 1-1 and Experimental Example 2-1, and the production of these polycarbonate diols in Experimental Example 1-2 and Experimental Example 2-2.
- the physical properties of the polyurethane film obtained by using the materials are shown in an organized manner.
- Example 1 and Example 2 the polyurethane film prepared from the polycarbonate diol obtained by using isosorbide and 1,6-hexanediol as the raw material diol showed a high 100% modulus, and the friction resistance test. Then, after 500 reciprocations, it has high friction resistance, such as the surface appearance does not change substantially.
- Example 1 having a high ISB ratio has a high pencil hardness of 2B to B.
- the polyurethane film produced from the polycarbonate diol obtained using only 1,6-hexanediol as the raw material diol has lower strength and hardness than the polycarbonate diol using isosorbide, In the friction resistance test, surface damage was severe after about 100 reciprocations, and the test had to be interrupted.
- Example 1-3 In a four-necked flask equipped with a stirrer, reflux condenser, dropping funnel and thermometer, 119 g of isophorone diisocyanate as polyisocyanate, 519 g of polycarbonate diol of Experimental Example 1-1 as polycarbonate diol, and 273 g of methyl ethyl ketone are further added. The reaction was conducted for 9 hours while heating to 80 ° C. in an oil bath. After cooling to 60 ° C.
- the solution of the urethane (meth) acrylate oligomer 1 thus obtained is referred to as an active energy ray-curable polymer composition 1.
- the molecular weight between calculated network crosslinking points of the obtained active energy ray-curable polymer composition 1 was 2,620.
- the number average molecular weight of the urethane (meth) acrylate oligomer 1 determined by GPC was 2,570.
- the content of the urethane (meth) acrylate oligomer 1 in the active energy ray-curable polymer composition 1 is 70% by mass, and the viscosity of the active energy ray-curable polymer composition 1 is 2,260 mPa ⁇ s. It was.
- the obtained active energy ray-curable polymer composition 1 was coated on a polyethylene terephthalate film with an applicator to form a coating film, and then dried at 60 ° C. for 1 minute, and an electron beam irradiation apparatus (CB175, Eye The cured film 1 was formed by irradiating the dried coating with an electron beam under the conditions of an acceleration voltage of 165 kV and an irradiation dose of 5 Mrad. Thereafter, the cured film 1 was peeled from the polyethylene terephthalate film to obtain a cured film 1 having a thickness of 50 ⁇ m. About the obtained cured film 1, mechanical characteristics, stain resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- Example 2-3 Except that 119 g of isophorone diisocyanate was changed to 112 g, 519 g of the polycarbonate diol of Experimental Example 1-1 was changed to 530 g of the polycarbonate diol of Experimental Example 2-1, 273 g of methyl ethyl ketone was changed to 275 g, 27 g of methyl ethyl ketone was changed to 25 g, and 62 g of hydroxyethyl acrylate was changed to 59 g.
- urethane (meth) acrylate oligomer 2 was obtained in the same manner as in Experimental Example 1-3, and active energy ray-curable polymer composition 2 which was a solution of urethane (meth) acrylate oligomer 2 was obtained.
- the molecular weight between calculated network crosslinking points of the obtained active energy ray-curable polymer composition 2 was 2,780. Moreover, the number average molecular weight of the urethane (meth) acrylate oligomer 2 determined by GPC was 2,870. Further, the content of the urethane (meth) acrylate oligomer 2 in the active energy ray-curable polymer composition 2 is 70% by mass, and the viscosity of the active energy ray-curable polymer composition 2 is 2,720 mPa ⁇ s. It was.
- a cured film 2 was obtained in the same manner as in Experimental Example 1-3, except that the active energy ray-curable polymer composition 2 obtained as described above was used. About the obtained cured film 2, mechanical characteristics, stain resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- Example 3-3 Except that 119 g of isophorone diisocyanate was changed to 200 g, 519 g of polycarbonate diol of Experimental Example 1-1 was changed to 396 g of polycarbonate diol of Experimental Example 3-1, 273 g of methyl ethyl ketone was changed to 255 g of 27 g of methyl ethyl ketone, and 62 g of hydroxyethyl acrylate was changed to 104 g.
- the molecular weight between calculated network crosslinking points of the obtained active energy ray-curable polymer composition 3 was 1,550.
- the number average molecular weight of the urethane (meth) acrylate oligomer 3 determined by GPC was 1,690.
- the content of the urethane (meth) acrylate oligomer 3 in the active energy ray-curable polymer composition 3 is 70% by mass, and the viscosity of the active energy ray-curable polymer composition 3 is 1,190 mPa ⁇ s. It was.
- a cured film 3 was obtained in the same manner as in Experimental Example 1-3, except that the active energy ray-curable polymer composition 3 obtained as described above was used. About the obtained cured film 3, mechanical characteristics, contamination resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- Example 4-3 119 g of isophorone diisocyanate was changed to 197 g, 519 g of the polycarbonate diol of Experimental Example 1-1 was changed to 400 g of the polycarbonate diol of Experimental Example 4-1, 273 g of methyl ethyl ketone was changed to 256 g of 27 g of methyl ethyl ketone, and 62 g of hydroxyethyl acrylate was changed to 103 g.
- urethane (meth) acrylate oligomer 4 was obtained in the same manner as in Experimental Example 1-3, and active energy ray-curable polymer composition 4 which was a solution of urethane (meth) acrylate oligomer 4 was obtained.
- the molecular weight between calculated network crosslinking points of the obtained active energy ray-curable polymer composition 4 was 1,570.
- the number average molecular weight of urethane (meth) acrylate oligomer 4 determined by GPC was 1,670.
- the content of the urethane (meth) acrylate oligomer 3 in the active energy ray-curable polymer composition 4 is 70% by mass, and the viscosity of the active energy ray-curable polymer composition 4 is 9,540 mPa ⁇ s. It was.
- a cured film 4 was obtained in the same manner as in Experimental Example 1-3, except that the active energy ray-curable polymer composition 4 obtained as described above was used. About the obtained cured film 4, mechanical characteristics, stain resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- a urethane (meth) acrylate oligomer C1 was obtained in the same manner as in Experimental Example 1-3, except that 27 g of methyl ethyl ketone added after the completion of the prepolymer formation reaction was changed to 26 g and 62 g of hydroxyethyl acrylate was changed to 61 g.
- An active energy ray-curable polymer composition C1 that is a solution of the (meth) acrylate oligomer C1 was obtained.
- the molecular weight between calculated network crosslinking points of the obtained active energy ray-curable polymer composition C1 was 2,680.
- the number average molecular weight of the urethane (meth) acrylate oligomer C1 determined by GPC was 2,870.
- the content of the urethane (meth) acrylate oligomer C1 in the active energy ray-curable polymer composition C1 is 70% by mass, and the viscosity of the active energy ray-curable polymer composition C1 is 1,390 mPa ⁇ s. It was.
- a cured film C1 was obtained in the same manner as in Experimental Example 1-3, except that the active energy ray-curable polymer composition C1 obtained as described above was used. About the obtained cured film C1, mechanical characteristics, stain resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- the urethane (meth) acrylate oligomer C2 was obtained in the same manner as in Experimental Example 1-3, except that 27 g of methyl ethyl ketone added after completion of the prepolymer formation reaction was changed to 26 g and 62 g of hydroxyethyl acrylate was changed to 61 g. Moreover, the active energy ray-curable polymer composition C2 which is a solution of the urethane (meth) acrylate oligomer C2 was produced.
- the molecular weight between calculated network crosslinking points of the obtained active energy ray-curable polymer composition C2 was 2,670.
- the number average molecular weight of the urethane (meth) acrylate oligomer C2 determined by GPC was 2,600.
- the content of the urethane (meth) acrylate oligomer C2 in the active energy ray-curable polymer composition C2 was 70% by mass, and the viscosity of the active energy ray-curable polymer composition C2 was 890 mPa ⁇ s.
- a cured film C2 was obtained in the same manner as in Experimental Example 1-3, except that the active energy ray-curable polymer composition C2 obtained as described above was used. About the obtained cured film C2, mechanical characteristics, stain resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- the molecular weight between calculated network crosslinking points of the obtained active energy ray-curable polymer composition C3 was 2,710.
- the number average molecular weight of urethane (meth) acrylate oligomer C3 determined by GPC was 2,820.
- the content of the urethane (meth) acrylate oligomer C3 in the active energy ray-curable polymer composition C3 is 70% by mass, and the viscosity of the active energy ray-curable polymer composition C3 is 1,560 mPa ⁇ s. It was.
- a cured film C3 was obtained in the same manner as in Experimental Example 1-3, except that the active energy ray-curable polymer composition C3 obtained as described above was used. About the obtained cured film C3, mechanical characteristics, contamination resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- the urethane (meth) acrylate oligomer C4 was obtained in the same manner as in Experimental Example 1-3, except that 273 g of methyl ethyl ketone was changed to 256 g, 27 g of methyl ethyl ketone added after the prepolymer formation reaction was changed to 44 g, and 62 g of hydroxyethyl acrylate was changed to 102 g.
- an active energy ray-curable polymer composition C4 which is a solution of urethane (meth) acrylate oligomer C4, was prepared.
- the molecular weight between calculated network cross-linking points of the obtained active energy ray-curable polymer composition was 1,600.
- the number average molecular weight of urethane (meth) acrylate oligomer C4 determined by GPC was 1,840.
- the content of the urethane (meth) acrylate oligomer C4 in the active energy ray-curable polymer composition C4 was 70% by mass, and the viscosity of the active energy ray-curable polymer composition C4 was 750 mPa ⁇ s.
- a cured film C4 was obtained in the same manner as in Experimental Example 1-3, except that the active energy ray-curable polymer composition C4 obtained as described above was used. About the obtained cured film C4, mechanical characteristics, contamination resistance, abrasion resistance, and pencil hardness were evaluated. The results are shown in Table 3.
- Table 4 shows the mass ratio of the constituent units of the polyol in the polycarbonate polyol, the OH value of the polycarbonate polyol, and the number average molecular weight of the polycarbonate polyol.
- the number average molecular weights of T5652, C-2050, 980N, and UM-90 (1/1) are catalog values.
- Table 5 shows the physical properties of the polycarbonate diol products obtained in Experimental Examples 1-1, 2-1, 3-1 and 4-1 and Experimental Examples 1-2, 2-2, 3 -2 and the physical properties of polyurethane films obtained using these polycarbonate diol products in Experimental Example 4-2 are summarized and shown.
- Example 3 Comparative Example 2, and Comparative Example 3, the polycarbonate polyols in these examples all have the same number average molecular weight, calculated molecular weight between cross-linking points, and OH number, and 50% by mass of the structural unit is Although it is 1,6-hexanediol, in Example 3, the remaining 50% by mass of the structural unit is isosorbide, whereas in Comparative Examples 2 and 3, 1,5-pentadiol and 3-methylpentanediol, respectively. It is.
- the cured film of Example 3 has the same tensile breaking elongation, higher tensile breaking strength, and higher resistance to water-based ink than the cured films of Reference Experimental Examples 2-3 and 3-3. Contamination and higher pencil hardness.
- Example 4 and Comparative Example 4 the polycarbonate polyols in these examples all have the same number average molecular weight, calculated molecular weight between cross-linking points, and OH value.
- 75% by mass of the structural unit is 1,6-Hexanediol, and the remaining 25% by mass is isosorbide, whereas in Comparative Example 4, all the structural units are 1,6-hexanediol.
- the cured film of Example 4 has a higher tensile rupture elongation, a higher tensile rupture strength, and a higher stain resistance to red oil ink than the cured film of Comparative Example 4. Has higher pencil hardness.
- Example 5 the polycarbonate polyols in these examples all have the same number average molecular weight, calculated molecular weight between cross-linking points, and OH value, and 50% by mass of the structural unit is 1,6- Although it is hexanediol, in Example 5, the remaining 50% by mass of the structural unit is isosorbide, whereas in Comparative Example 5, it is cyclohexanedimethanol.
- the cured film of Example 5 has a higher tensile rupture strength than the cured film of Comparative Example 5, but has a higher tensile rupture strength, and a higher stain resistance to oil-based inks and water-based inks. Has higher pencil hardness.
- Example 6 and Example 5 the polycarbonate polyols in these examples all have the same number average molecular weight, calculated molecular weight between crosslinking points, and OH number, and are composed of 1,6-hexanediol and isosorbide.
- the proportion of isosorbide in the unit is 75% by mass in Example 6, whereas it is 50% by mass in Example 5.
- the cured film of Example 6 has comparable tensile breaking strength, stain resistance, and pencil hardness as the cured film of Example 5.
- the cured film containing the polycarbonate diol of Experimental Example 4-1 is more tertiary than the cured film containing the polycarbonate diol of Experimental Example 3-1. It is estimated that the balance between the original processing characteristics and the stain resistance is excellent.
- the composition containing a polycarbonate polyol containing isosorbide as a constituent unit and having crosslinking points at both ends is more active energy ray than a similar composition containing another polycarbonate polyol. It can be seen that a cured film excellent in mechanical strength and stain resistance can be formed by irradiation of.
- Example 5-1 In a 5 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure regulator, 1,6-hexanediol (16HD): 404.3 g, isosorbide (ISB): 500.1 g, diphenyl carbonate: 1095.6 g Magnesium acetate tetrahydrate aqueous solution: 0.87 mL (concentration: 8.4 g / L, magnesium acetate tetrahydrate: 7.3 mg) was added, and the atmosphere was replaced with nitrogen gas. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating.
- diphenyl carbonate 1095.6 g
- Magnesium acetate tetrahydrate aqueous solution 0.87 mL (concentration: 8.4 g / L, magnesium acetate t
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after the thin-film distillation is 1,465, (A) / (B) ratio (isosorbide / 1,6-hexanediol)
- the terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 68/32, and the terminal (A) ratio (I) calculated in the above (I) was 1.11.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature, and the amount of magnesium contained was 1.14 ppm by weight.
- the APHA value was 60, the content of isosorbide as a raw material diol was 0.14% by weight, the phenol content was 0.23% by weight, and the phenoxide terminal accounted for 9% of the total terminal.
- a polymer containing an ether bond other than the isosorbide skeleton was not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 6-1 In a 5 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure regulator, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, magnesium acetate tetrahydrate Aqueous solution: 4.4 mL (concentration: 8.4 g / L, magnesium acetate tetrahydrate: 37 mg) was added, and the atmosphere was replaced with nitrogen gas. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating.
- the number average molecular weight (Mn) determined by NMR analysis of the polycarbonate diol contained in the polycarbonate diol product is 928, the ratio (A) / (B) (isosorbide / 1,6-hexanediol) is 51/49, and the terminal The (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 71/29, and the terminal (A) ratio (I) calculated in (I) was 1.39. It was.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature.
- the APHA value is 60
- the content of isosorbide as a raw material diol is 3.60% by weight
- the phenol content is 1.06% by weight
- a polymer having a phenoxide terminal and a polymer having an ether bond other than the isosorbide skeleton. was not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 7-1 In a 5 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure regulator, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, magnesium acetate tetrahydrate Aqueous solution: 8.7 mL (concentration: 8.4 g / L, magnesium acetate tetrahydrate: 73 mg) was added, and the nitrogen gas was replaced. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating.
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after the thin-film distillation is 980, and the (A) / (B) ratio (isosorbide / 1,6-hexanediol) is 50. / 50, terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 70/30, and terminal (A) ratio (I) calculated in (I) is 1 .40.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature, and the amount of magnesium contained was 9.97 ppm by weight. Also, the APHA value is 60, the content of isosorbide as a raw material diol is 0.60% by weight, the phenol content is 0.04% by weight, a polymer having a phenoxide terminal and a polymer containing an ether bond other than the isosorbide skeleton. Was not detected. The residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 8-1 In a 5 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure regulator, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, magnesium acetate tetrahydrate Aqueous solution: 17.5 mL (concentration: 8.4 g / L, magnesium acetate tetrahydrate: 147 mg) was added, and the nitrogen gas was replaced. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product is 924, the ratio (A) / (B) (isosorbide / 1,6-hexanediol) is 50/50, and the terminal The (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 70/30, and the terminal (A) ratio (I) calculated in (I) was 1.40. It was.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature. Also, the APHA value is 60, the content of isosorbide as a raw material diol is 3.91% by weight, the phenol content is 1.17% by weight, a polymer having a phenoxide terminal and a polymer having an ether bond other than the isosorbide skeleton. Was not detected. The residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 9-1 In a 5 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure regulator, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, magnesium acetate tetrahydrate Aqueous solution: 8.7 mL (concentration: 50.4 g / L, magnesium acetate tetrahydrate: 440 mg) was added, and nitrogen gas substitution was performed. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating.
- the pressure was reduced to 6.67 kPa over 5 minutes, and the reaction was carried out while distilling off phenol at 130 ° C. and 6.67 kPa for 150 minutes. Then, after the pressure was lowered to 0.40 kPa over 210 minutes, the reaction was carried out while distilling off phenol and unreacted diol while raising the temperature to 160 ° C. over 100 minutes.
- the yield of the obtained polycarbonate diol product was 987.0 g.
- the amount of magnesium contained was 65.9 ppm by weight.
- the property of the obtained polycarbonate diol product was a transparent solid at normal temperature, and contained a white Mg salt aggregate.
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after the thin-film distillation is 1,067
- terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 85/15
- the terminal (A) ratio (I) calculated in (I) above. was 1.85.
- the property of the polycarbonate diol product after this thin-film distillation was a transparent solid at room temperature, and the amount of magnesium contained was 49.3 ppm by weight.
- the APHA value was 70, the content of isosorbide as a raw material diol was 1.66% by weight, and a polymer having a phenol or phenoxide terminal or a polymer containing an ether bond other than the isosorbide skeleton was not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 10-1 In a 5 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure regulator, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, magnesium acetate tetrahydrate Aqueous solution: 8.7 mL (concentration: 100.8 g / L, magnesium acetate tetrahydrate: 877 mg) was added, and nitrogen gas substitution was performed. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating.
- the pressure was reduced to 6.67 kPa over 5 minutes, and the reaction was carried out while distilling off phenol at 130 ° C. and 6.67 kPa for 150 minutes. Then, after reducing the pressure to 0.40 kPa over 180 minutes, the reaction was carried out while distilling off phenol and unreacted diol while raising the temperature to 160 ° C. over 100 minutes.
- the yield of the obtained polycarbonate diol product was 986.9 g.
- the amount of magnesium contained was 113 ppm by weight.
- the property of the obtained polycarbonate diol product was a transparent solid at normal temperature, and contained a white Mg salt aggregate.
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after this thin-film distillation is 1,054, (A) / (B) ratio (isosorbide / 1,6-hexanediol) Is 46/54, terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 90/10, and terminal (A) ratio (I) calculated in (I) above. Was 1.96.
- the property of the polycarbonate diol product after the thin film distillation was a transparent solid at room temperature, and the amount of magnesium contained was 104 ppm by weight.
- the APHA value was 60, the content of isosorbide as a raw material diol was 1.47% by weight, and a polymer having a phenol or phenoxide terminal or a polymer containing an ether bond other than the isosorbide skeleton was not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 11-1 In a 5 L glass separable flask equipped with a stirrer, distillate trap, and pressure regulator, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, aqueous calcium acetate solution: 7 2 mL (concentration: 8.4 g / L, calcium acetate: 61 mg) was added, and nitrogen gas substitution was performed. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating. When the temperature was raised and dissolved, the pressure was reduced to 4.67 kPa over 5 minutes, and the reaction was carried out at 130 ° C.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product is 1,130, and the ratio (A) / (B) (isosorbide / 1,6-hexanediol) is 50/50.
- the terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 92/8, and the terminal (A) ratio (I) calculated in (I) was 1.84. Met.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature.
- the APHA value is 60
- the content of isosorbide as a raw material diol is 4.29% by weight
- the phenol content is 0.23% by weight
- a polymer having a phenoxide terminal and a polymer having an ether bond other than the isosorbide skeleton. was not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 12-1 In a 5 L glass separable flask equipped with a stirrer, distillate trap, and pressure regulator, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, barium acetate aqueous solution: 10 4 mL (concentration: 8.4 g / L, barium acetate: 87 mg) was added, and the atmosphere was replaced with nitrogen gas. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating. When the temperature was raised and dissolved, the pressure was reduced to 5.33 kPa over 5 minutes, and the reaction was carried out while distilling off phenol at 130 ° C.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product is 1,028, and the ratio (A) / (B) (isosorbide / 1,6-hexanediol) is 48/52.
- the terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 92/8, and the terminal (A) ratio (I) calculated in (I) was 1.92. Met.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature.
- the APHA value is 60
- the content of isosorbide as a raw material diol is 5.68% by weight
- the phenol content is 0.70% by weight
- a polymer having a phenoxide terminal and a polymer having an ether bond other than the isosorbide skeleton. was not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 13-1 In a 5 L glass separable flask equipped with a stirrer, a distillate trap, and a pressure controller, 1,6-hexanediol: 404.3 g, isosorbide: 500.1 g, diphenyl carbonate: 1095.6 g, sodium acetate: 3. 3 mL (concentration: 8.4 g / L, sodium acetate: 28 mg) was added, and the nitrogen gas was replaced. First, the internal temperature was raised to 130 ° C., and the contents were dissolved by heating. When the temperature was raised and dissolved, the pressure was lowered to 5.33 kPa in 5 minutes, and the reaction was carried out while distilling off phenol at 130 ° C.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product is 1,053, and the ratio (A) / (B) (isosorbide / 1,6-hexanediol) is 49/51.
- the terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 90/10, and the terminal (A) ratio (I) calculated in (I) was 1.84. Met.
- the property of the obtained polycarbonate diol product was a transparent solid at room temperature.
- the APHA value is 60
- the content of isosorbide as a raw material diol is 5.25% by weight
- the phenol content is 0.43% by weight
- the polymer having a phenoxide terminal and the polymer having an ether bond other than the isosorbide structure is Not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- the pressure was reduced to 6.67 kPa over 5 minutes, and the reaction was carried out while distilling off phenol at 130 ° C., 5.33 to 8.00 kPa for 190 minutes. Then, after the pressure was lowered to 0.40 kPa over 100 minutes, the reaction was carried out while distilling off phenol and unreacted diol while raising the temperature to 150 ° C. over 60 minutes.
- the yield of the obtained polycarbonate diol product was 990.0 g.
- the amount of magnesium contained was 315 ppm by weight.
- the property of the obtained polycarbonate diol product was a transparent solid at normal temperature, and contained a white Mg salt aggregate.
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after the thin-film distillation is 1,122, (A) / (B) ratio (isosorbide / 1,6-hexanediol) Is 45/55, the terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 90/10, and the terminal (A) ratio (I) calculated in (I) above. Was 2.00.
- the property of the polycarbonate diol product after this thin-film distillation was a transparent solid at room temperature, and the amount of magnesium contained was 350 ppm by weight.
- the APHA value was 70, the content of isosorbide as a raw material diol was 2.97% by weight, and a polymer having a phenol or phenoxide terminal or a polymer containing an ether bond other than the isosorbide structure was not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after this thin-film distillation is 1,082, (A) / (B) ratio (isosorbide / 1,6-hexanediol) The terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 92/8, and the terminal (A) ratio (I) calculated in the above (I) was 1.96.
- the property of the polycarbonate diol product after this thin-film distillation was a transparent solid at room temperature, and the amount of Mg contained was 9.97 ppm.
- the APHA value was 100, the content of isosorbide as a raw material diol was 1.08% by weight, and no polymer having phenol or phenoxide terminal or a polymer containing an ether bond other than the isosorbide structure was detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product is 1,021, and the ratio (A) / (B) (isosorbide / 1,6-hexanediol) is 48/52.
- the terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) was 85/15, and the terminal (A) ratio (I) calculated in (I) was 1.77. Met.
- the property of the obtained polycarbonate diol product was a yellow solid with white turbidity at room temperature.
- the APHA value could not be measured due to cloudiness.
- the content of isosorbide as a raw material diol was 4.77% by weight, the phenol content was 0.41% by weight, and a polymer having a phenoxide terminal and a polymer containing an ether bond other than the isosorbide structure were not detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- the obtained polycarbonate diol product was subjected to thin film distillation (temperature: 180 to 200 ° C., pressure: 0.027 kPa) at a flow rate of 20 g / min.
- the number average molecular weight (Mn) determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after this thin-film distillation is 1,088, (A) / (B) ratio (isosorbide / 1,6-hexanediol) Is 46/54, terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 93/7, and terminal (A) ratio (I) calculated in (I) above.
- Mn number average molecular weight determined from NMR analysis of the polycarbonate diol contained in the polycarbonate diol product after this thin-film distillation is 1,088, (A) / (B) ratio (isosorbide / 1,6-hexanediol) Is 46/54, terminal (A) / (B) ratio (terminal isosorbide / 1,6-hexanediol ratio) is 93/7, and terminal (A) ratio (
- the property of the obtained polycarbonate diol product was a yellow solid with white turbidity at room temperature.
- the APHA value could not be measured due to cloudiness.
- the content of isosorbide, which is a raw material diol, was 0.30% by weight, and no polymer having a phenol or phenoxide terminal or a polymer containing an ether bond other than the isosorbide structure was detected.
- the residual diphenyl carbonate was below the limit of quantification (0.01% by weight or less).
- Example 5-4 Place 95.6 g of the polycarbonate diol after thin-film distillation produced in Experimental Example 5-1 that has been preheated to the melting point or higher (for example, 150 ° C.) into a separable flask and immerse the flask in an oil bath set at 50 ° C. However, 134 g of DMF was added and dissolved. While stirring at 100 rpm, 14.0 g of MDI was added. Then, the change of the voltage value of the stirring torque by the viscosity increase was read, and the state of the contents was observed. In this case, the polymerization was very slow and the torque was 0.2 V even after 1 hour. Further, even after 4 hours had elapsed, although the thickening proceeded little by little, the torque was about 0.7V.
- Example 7-4 Put 85.0 g of polycarbonate diol after thin-film distillation produced in Experimental Example 7-1, which has been preheated to a melting point or higher (for example, 100 ° C.), into a separable flask, and immerse the flask in an oil bath set at 50 ° C. for heating. However, 131 g of DMF was added and dissolved. While stirring at 100 rpm, 21.9 g of MDI was added. Then, the change of the voltage value of the stirring torque by the viscosity increase was read, and the state of the contents was observed. In this case, the speed of thickening was about 42 minutes until the torque exceeded 1.0 V, and was within an easy-to-handle range. After that, the thickening became gradual, and the thickening stopped at a torque of about 1.7V.
- a melting point or higher for example, 100 ° C.
- Example 9-4 Put 84.9 g of polycarbonate diol after thin-film distillation produced in Experimental Example 9-1, which has been heated to a melting point or higher (for example, 100 ° C.) in advance into a separable flask, and immerse the flask in an oil bath set at 50 ° C. for heating. However, 131 g of DMF was added and dissolved. 22.1 g of MDI was added while stirring at 100 rpm. Then, the change of the voltage value of the stirring torque by the viscosity increase was read, and the state of the contents was observed. In this case, the thickening speed was about 14 minutes until the torque exceeded 1.0 V, and it was within the easy range. After that, the thickening became gradual, and the thickening stopped at a torque of about 1.8V.
- a melting point or higher for example, 100 ° C.
- Example 10-4 Put 85.0 g of polycarbonate diol after thin-film distillation produced in Experimental Example 10-1 that has been heated to a melting point or higher (eg, 100 ° C.) in advance into a separable flask, and immerse the flask in an oil bath set at 50 ° C. for heating. However, 129 g of DMF was added and dissolved. While stirring at 100 rpm, 20.9 g of MDI was added. Then, the change of the voltage value of the stirring torque by the viscosity increase was read, and the state of the contents was observed. In this case, although gel formation was slightly recognized immediately after the addition of MDI, the polymerization solution was easy to handle as a whole.
- a melting point or higher eg, 100 ° C.
- the time to increase the torque to exceed 0.7V was about 10 minutes, and the viscosity increase rate was within the easy-to-handle range. However, since the solution became inhomogeneous due to the formation of gel and a part of low viscosity was generated, the torque did not exceed 1.0V.
- Tables 6 and 7 show the experimental examples 5-1 to 13-1, the reference experimental example 6-1, the reference experimental example 7-1, the reference experimental example 9-1, and the reference experimental example 10. -1, the amount of raw material diol used in the production of polycarbonate diol, the type of catalyst, the amount of catalyst used, the yield and the reaction time, the amount of catalyst contained in the polycarbonate diol product, and the metal salt derived from the catalyst The presence / absence of aggregates and the results of the urethanization reaction rate test using the polycarbonate diol product are summarized and shown.
- the amount of catalyst used is the concentration in weight relative to the amount of diol used.
- “*” means a theoretical value.
- the numerical value in parentheses in the amount of catalyst contained means the value before thin film distillation.
- Example 7 it is possible to obtain a polycarbonate diol product containing less catalyst content of less than 0.1 ppm by transesterification, which is the reactivity of diol and carbonate ester. Is difficult because the reaction does not proceed sufficiently. However, for example, it is possible to reduce the content to less than 0.1 ppm by purifying a polycarbonate diol product having a catalyst content of 0.1 ppm or more. If such a polycarbonate diol is used in the urethanization reaction, it is possible to obtain a homogeneous urethane while suppressing gelation.
- Table 8 shows the raw materials used in the production of polycarbonate diol in Experimental Example 5-1, Experimental Example 7-1, Experimental Example 9-1, Reference Experimental Example 8-1, and Reference Experimental Example 10-1. Amount of diol used, type of catalyst, amount of catalyst used, yield, maximum reaction temperature, reaction time, terminal (A) rate of polycarbonate diol product (I), and urethanization reaction using polycarbonate diol product The results of the speed test are organized and shown.
- Example 16 and Example 17 and Reference Example 5 when a polycarbonate diol product having a terminal (A) ratio (I) of 1.2 or more was used, an appropriate urethanization reaction was performed. Since it has a speed, the urethanization reaction can be sufficiently advanced, and a polyurethane having the designed physical properties can be obtained. On the other hand, when a polycarbonate diol product having a terminal (A) ratio (I) of less than 1.2 is used, the urethanization reaction cannot be sufficiently advanced due to the urethanization reaction rate being too slow. It has been found that it is sometimes impossible to obtain polyurethane having the designed physical properties such as hardness.
- the urethanization reaction rate is slow and the load value exceeds 0.7V. It takes about 4 hours and the final load value remains below 1.0V.
- a polycarbonate diol product having a terminal (A) ratio (I) of Example 16 or Example 17 of 1.2 or more it has an appropriate urethanization reaction rate. The urethanization reaction can be sufficiently carried out, the load value exceeds 0.7V within 60 minutes, and the final load value exceeds 1.0V, and the thickening is stopped.
- Example 16 and Example 17 and Reference Example 6 when a polycarbonate diol product having a terminal (A) ratio (I) of 1.9 or less was used, it was moderate. Since it has a urethanization reaction rate, the urethanization reaction can be sufficiently carried out under control, and a polyurethane having the designed physical properties can be obtained. In addition, when a polycarbonate diol product having a terminal (A) ratio (I) of greater than 1.9 is used, the urethanization reaction proceeds too much due to the fact that the urethanization reaction rate is so high that it cannot be controlled. It has been found that it may be impossible to obtain a polyurethane having the designed physical properties.
- the urethanization reaction rate is greatly different due to the difference in the terminal (A) ratio (I) even when the amount of catalyst contained is the same.
- the rate (I) affects the urethanization reaction rate.
- the polycarbonate diol product having a terminal (A) ratio (I) of Reference Example 6 of 1.9 or more was used, the load value reached 0.7 V in 14 minutes due to the high urethanization rate. However, the viscosity was so high that the final load value could not be measured.
- Table 9 shows the amount of raw material diol used in the production of polycarbonate diol, the type of catalyst, the amount of catalyst used, the yield, the maximum reaction temperature, and the reaction time in Example 7-1 and Reference Example 8-1.
- the terminal (A) rate (I) of the polycarbonate diol product and the results of the urethanization reaction rate test using the polycarbonate diol product are summarized and shown.
- Example 18 As is clear from the comparison between Example 18 and Reference Example 7, when the polycarbonate diol product obtained with the maximum reaction temperature at the time of production of less than 180 ° C. was used, an appropriate terminal (A) ratio (I ) And the urethanization reaction rate, the urethanation reaction can be sufficiently advanced, and a polyurethane having the designed physical properties can be obtained.
- the polycarbonate diol product obtained with the maximum reaction temperature at the time of production of 180 ° C. or higher has a high terminal (A) ratio (I), and when the urethanization reaction is performed using it, the urethanization reaction rate is high. It has been found that the urethanization reaction proceeds too fast, the viscosity becomes so high that the load value cannot be measured, and it may be impossible to obtain a polyurethane having the designed physical properties such as hardness.
- the polycarbonate diol of the present invention has a rigid structure (A) in the molecular chain
- the polyurethane produced using the polycarbonate diol has high hardness and excellent abrasion resistance, and has a long-term surface property.
- it is suitable for use in coating agents, water-based paints, adhesives, synthetic leather, and artificial leather.
- the structure (A) has a characteristic of high hydrophilicity
- the polyurethane produced using the polycarbonate diol of the present invention is used for applications requiring affinity for water, for example, a conventional load. It can be suitably used when producing a small water-based paint, and is extremely useful in industry.
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Abstract
Description
また、ウレタン(メタ)アクリレート系オリゴマーを含む活性エネルギー線硬化性重合体組成物、該組成物への活性エネルギー線の照射による硬化膜、及びそれを用いた積層体に関するものである。
本発明はまた、そのポリカーボネートジオール及びポリウレタンを工業的なスケールで製造する方法を確立することを第4の課題とする。
さらに、本発明は、優れた耐汚染性及び硬度を有する硬化膜が得られる活性エネルギー線硬化性重合体組成物を提供することを第5の課題とする。特に、塗布性に優れた活性エネルギー線硬化性重合体組成物を提供することを第6の課題とする。
また、上記第1、第3及び第4の課題を解決すべく鋭意研究を重ねた結果、分子鎖に特定の繰り返し単位を含み、かつ、分子鎖の末端に占める前記特定の繰り返し単位の割合が特定量であるポリカーボネートジオール、及びこのポリカーボネートジオールを用いて製造されるポリウレタンが、上記第1、第3及び第4の課題を解決し得ることを見出し、本発明に至った。
前記ポリカーボネートジオールが、前記式(A)で表される繰り返し単位を10質量%以上含み、前記ポリカーボネートジオールの数平均分子量が500以上5,000以下、かつ1分子当りの平均水酸基数が2.2以下であることを特徴とする活性エネルギー線硬化性重合体組成物。
前記ポリカーボネートジオールが、(i)イソソルビド、イソマンニド、及びイソイディッドから選ばれる少なくとも1種のジオール、(ii)ヘテロ原子を含有していてもよい炭素数1~15のジオール、及び(iii)炭酸ジエステルを、エステル交換触媒存在下に反応させて得られるポリカーボネートジオールであって、前記ポリカーボネートジオールの数平均分子量が500以上5,000以下、かつ1分子当りの平均水酸基数が2.2以下であることを特徴とする活性エネルギー線硬化性重合体組成物。
前記ウレタンプレポリマーは、前記ポリイソシアネートと前記ポリカーボネートジオールとをウレタン化反応させてなることを特徴とする[34]乃至[41]のいずれかに記載の活性エネルギー線硬化性重合体組成物。
また、本明細書において「~」とはその前後に記載される数値を下限値及び上限値として含む意味で使用される。
本発明の第1の態様に係るポリカーボネートジオールは、ジオールと炭酸ジエステルを原料とし、エステル交換触媒を用いて製造されることが好ましい。ジオールには、イソソルビド、及びその立体異性体であるイソマンニド、イソイディッドの1種以上と、ヘテロ原子を含有していてもよい炭素数1~15のジオールとが挙げられる。炭酸ジエステルには、例えばアルキルカーボネート、アリールカーボネート、及びアルキレンカーボネートが挙げられる。
本発明の第1の態様に係る構造(A)の構造上の第1の特徴は、フラン環が2個縮環したフレキシビリティの小さな剛直な構造である点にあり、このため、本発明の第1の態様に係るポリカーボネートジオールでは、この構造(A)の部分において剛直性が発現される。また、第2の特徴は、カーボネート基が、メチレン基等の自由回転可能な基を介することなく、直接縮環フラン環に結合しているため、この部分においても自由度が低く、極めてリジッドな構造となっている点にある。また、第3の特徴として、密度高く親水性のフラン環が2個配置されていることにあり、このため、水分子等の極性基との親和性があり、親水性が高いという特性を有する。
構造(B)を表す式(B)におけるXは、ヘテロ原子を含有してもよい炭素数1~15の2価の基であり、直鎖又は分岐鎖の鎖状基、環状基、いずれの構造が含まれていてもよい。
Xを構成する元素としての炭素数は好ましくは10以下であり、6以下であることがより好ましい。
X中に含まれていてもよいヘテロ原子は、例えば酸素原子、硫黄原子、窒素原子等であり、化学的な安定性から好ましくは酸素原子である。
本発明の第1の態様に係るポリカーボネートジオールの分子鎖を構成する構造(A)と構造(B)の割合(以下「(A)/(B)比」と称す場合がある。)は、通常、モル比で構造(A)/構造(B)=100/0~1/99である。分子鎖中に構造(B)を導入することによりポリカーボネートジオールの規則性が乱されるため融点及び粘度が低下しハンドリング性が改良されるという効果が得られる。前述した剛直性、親水性等の本発明の効果をもたらすのは主として構造(A)の部分であり、本発明の第1の態様に係るポリカーボネートジオール中の構造(A)の割合が少なすぎるとその効果が十分得られない場合がある。(A)/(B)比は100/0~10/90であることが好ましく、さらには、80/20~20/80であることがより好ましく、70/30~30/70であることがさらに好ましい。
本発明の第1の態様に係るポリカーボネートジオールは、後述するように、ジオールと炭酸ジエステルを原料として製造される。
使用可能な炭酸ジエステルとしては、本発明の効果を失わない限り限定されないが、アルキルカーボネート、アリールカーボネート、又はアルキレンカーボネートが挙げられる。このうちアリールカーボネートを使用すると速やかに反応が進行するという利点がある。しかしその一方で、アリールカーボネートを原料とすると沸点の高いフェノール類が副生するが、ポリカーボネートジオール生成物中のフェノール類の残留量は、より少ない方が好ましい。このものは一官能性化合物なので、ポリウレタン化の際の重合阻害因子となり得る上、刺激性物質でもあるためである。
ジアリールカーボネートの例としては、ジフェニルカーボネート、ジトリルカーボネート、ビス(クロロフェニル)カーボネート、ジm-クレジルカーボネート等が挙げられ、好ましくはジフェニルカーボネートである。
さらにアルキレンカーボネートの例としては、エチレンカーボネート、トリメチレンカーボネート、テトラメチレンカーボネート、1,2-プロピレンカーボネート、1,2-ブチレンカーボネート、1,3-ブチレンカーボネート、2,3-ブチレンカーボネート、1,2-ペンチレンカーボネート、1,3-ペンチレンカーボネート、1,4-ペンチレンカーボネート、1,5-ペンチレンカーボネート、2,3-ペンチレンカーボネート、2,4-ペンチレンカーボネート、ネオペンチルカーボネート等が挙げられ、好ましくはエチレンカーボネートである。
一方、ジオールのうち、本発明の第1の態様に係るポリカーボネートジオールに含まれる構造(A)と構造(B)を与えるジオールの具体的な例を以下に示す。
構造(A)を与える具体的な原料ジオールの例は、イソソルビド、及びその立体異性体であるイソマンニド、イソイディッド等が挙げられ、これらは1種を単独で用いてもよく、2種以上を併用してもよい。中でもソルビトールの脱水反応で容易に得られ、工業的な量で市販もされているイソソルビドが好ましい。
構造(B)を与える具体的な原料ジオールの例としては、前記のヘテロ原子を含有していてもよい炭素数1~15のジオール類、好ましくは、炭素数2~10のジオール類であり、次のようなものが挙げられる。
ジエチレングリコール、トリエチレングリコール、テトラエチレングリコール、ペンタエチレングリコール、ポリエチレングリコール、ポリプロピレングリコール、ポリテトラメチレングリコール等のエーテル基を有する鎖状のジオール類;
ビスヒドロキシエチルチオエーテル等のチオエーテルジオール類;
2-メチル-1,3-プロパンジオール、2-エチル-1,3-プロパンジオール、2-ブチル-1,3-プロパンジオール、2,2-ジメチル-1,3-プロパンジオール、2-エチル-2-ブチル-1,3-プロパンジオール、2,2-ジエチル-1,3-プロパンジオール、2-ペンチル-2-プロピル-1,3-プロパンジオール、2-ペンチル-2-プロピル-1,3-プロパンジオール、3-メチル-1,5-ペンタンジオール、3,3-ジメチル-1,5-ペンタンジオール、2,2,4,4-テトラメチル-1,5-ペンタンジオール、2-エチル-1,6-ヘキサンジオール、2,2,9,9-テトラメチル-1,10-デカンジオール等の分岐鎖を有するジオール類;
1,3-シクロヘキサンジオール、1,4-シクロヘキサンジオール、1,4-シクロヘキサンジメタノール、4,4-ジシクロヘキシルジメチルメタンジオール、2,2’-ビス(4-ヒドロキシシクロヘキシル)プロパン、1,4-ジヒドロキシエチルシクロヘキサン、4,4’-イソプロピリデンジシクロヘキサノール、4,4’-イソプロピリデンビス(2,2’-ヒドロキシエトキシシクロヘキサン)、ノルボルナン-2,3-ジメタノール等の脂環式構造を有するジオール類;
2,5-ビス(ヒドロキシメチル)テトラヒドロフラン、3,4-ジヒドロキシテトラヒドロフラン、3,9-ビス(1,1-ジメチル-2-ヒドロキシエチル)-2,4,8,10-テトラオキサスピロ[5.5]ウンデカン(cas番号:1455-42-1)、2-(5-エチル-5-ヒドロキシメチル-1,3-ジオキサン-2-イル)-2-メチルプロパン-1-オール(cas番号:59802-10-7)等のヘテロ原子を環内にもつ環状基を含むジオール類;
ジエタノールアミン、N-メチル-ジエタノールアミン等の含窒素ジオール類;
ビス(ヒドロキシエチル)スルフィド等の含硫黄ジオール類:
本発明の第1の態様に係るポリカーボネートジオールの特徴は構造(A)を含むことにあるが、この構造(A)を与える前述のジオール類(以下「構造(A)用ジオール」と称す場合がある。)は、不安定な場合があり、保存や使用する際には注意を要する。例えば、イソソルビドは酸素が存在すると徐々に酸化されるので、保管や製造時の取り扱いの際には、酸素による分解を防ぐため、脱酸素剤を用いたり、窒素雰囲気下にしたりすることが肝要である。また、水分が混入しないようにすることも必要である。イソソルビドが酸化されると、ギ酸をはじめとする分解物が発生する。例えば、これら分解物を含むイソソルビドを用いてポリカーボネートジオールを製造すると、得られるポリカーボネートジオールに着色が発生したり、物性が著しく劣化する場合がある。また重合反応に影響を与え、目的の分子量の重合体が得られない場合がある。
本発明の第1の態様に係るポリカーボネートジオールを製造するために必要な構造(A)用ジオールの40%水溶液のpHの下限は、特に限定はされないが、通常3であり、好ましくはpH4、さらに好ましくはpH5であり、上限はpH11、好ましくはpH10である。
本発明の第1の態様に係るポリカーボネートジオールの数平均分子量(Mn)の下限は通常250であり、好ましくは500、さらに好ましくは700、特に好ましくは1,000である。一方、上限は通常5,000であり、好ましくは4,000、さらに好ましくは3,000である。ポリカーボネートジオールの数平均分子量が前記下限未満では、ウレタンとした際に本発明の特徴である硬度が十分に得られない。一方前記上限超過では粘度が上がり、ポリウレタン化の際のハンドリングに支障がでてくる。
本発明の第1の態様に係るポリカーボネートジオールは基本的にポリマーの末端構造は水酸基である。しかしながら、ジオールと炭酸ジエステルとの反応で得られるポリカーボネートジオール生成物中には、不純物として一部ポリマー末端が水酸基ではない構造のものが存在する場合がある。その構造の具体例としては、分子鎖末端がアルキルオキシ基又はアリールオキシ基のものであり、多くは炭酸ジエステル由来の構造である。
本発明の第1の態様に係るポリカーボネートジオールの水酸基価は、特に限定されないが下限は通常10mg-KOH/g、好ましくは20mg-KOH/g、より好ましくは35mg-KOH/gである。また、上限は通常230mg-KOH/g、好ましくは160mg-KOH/g、より好ましくは130mg-KOH/gである。水酸基価が上記下限未満では、粘度が高くなりすぎポリウレタン化の際のハンドリングが困難となる場合があり、上記上限超過ではポリウレタンとした時に強度や硬度が不足する場合がある。
本発明の第1の態様に係るポリカーボネートジオールは、カーボネート基により原料ジオールが重合した構造が基本となっている。しかしながら、製造方法によっては、一部前述の構造(A)以外のエーテル構造となったものが混入する場合があり、その存在量が多くなると耐候性や耐熱性が低下することがあるので、構造(A)以外のエーテル構造の割合が過度に多くならないように製造することが望ましい。
ポリカーボネートジオール中の構造(A)以外のエーテル構造を低減して、耐候性、耐熱性等の特性を確保する点において、本発明の第1の態様に係るポリカーボネートジオールの分子鎖中に含まれる構造(A)以外のエーテル結合とカーボネート結合の比は、特に限定されないが、通常モル比で2/98以下、好ましくは1/99以下、より好ましくは0.5/99.5以下である。
その際、本発明の第1の態様に係るポリカーボネートジオールの分子鎖中に含まれる構造(A)及び構造(B)以外のエーテル結合とカーボネート結合の比は、特に限定されないが、通常モル比で2/98以下、好ましくは1/99以下、より好ましくは0.5/99.5以下である。
本発明の第1の態様に係るポリカーボネートジオールは、室温付近で通常、液状からワックス状の白濁固体という性状を呈しているが、加温することにより粘度を低下させることができ、ハンドリングしやすくなる。また、ジメチルホルムアミド、ジメチルアセトアミド等のアミド系の溶媒、γ-ブチロラクトン等のエステル系溶媒、ジメチルスルホキシド等のスルホキシド系溶媒に溶解させることも可能で、移送や反応が行いやすくなる場合もある。
本発明の第1の態様に係るポリカーボネートジオールの色は、得られるポリウレタンの色目に影響を与えない範囲が好ましく、着色の程度をハーゼン色数(JIS K0071-1に準拠)で表した場合の値(以下「APHA値」と表記する。)は特に限定されないが、100以下が好ましく、より好ましくは50以下、さらに好ましくは30以下である。
<フェノール類>
本発明の第1の態様に係るポリカーボネートジオール中に含まれるフェノール類の含有量は、特に限定されないが、少ないほうが好ましく、好ましくは0.1重量%(以下、「重量%」を「質量%」とも言う)以下、より好ましくは0.01重量%以下、さらに好ましくは0.001重量%以下である。フェノール類は一官能性化合物なので、ポリウレタン化の際の重合阻害因子となる可能性がある上、刺激性物質であるためである。
本発明の第1の態様に係るポリカーボネートジオール生成物中には、製造時の原料として使用した炭酸ジエステルが残存することがあるが、本発明の第1の態様に係るポリカーボネートジオール中の炭酸ジエステルの残存量は限定されるものではないが、少ないほうが好ましく、通常上限が5重量%、好ましくは3重量%、さらに好ましくは1重量%である。ポリカーボネートジオールの炭酸ジエステル含有量が多すぎるとポリウレタン化の際の反応を阻害する場合がある。一方、その下限は特に制限はなく0.1重量%、好ましくは0.01重量%、さらに好ましくは0重量%である。
本発明の第1の態様に係るポリカーボネートジオールには、製造時に使用した原料ジオールが残存する場合がある。本発明の第1の態様に係るポリカーボネートジオール中の原料ジオールの残存量は、限定されるものではないが、少ないほうが好ましく、通常10重量%以下であり、好ましくは5重量%以下であり、より好ましくは3重量%以下であり、さらに好ましくは1重量%以下であり、好ましくは0.1重量%以下であり、より好ましくは0.05重量%以下である。また原料ジオールとしてイソソルビド、イソマンニド、及びイソイディッドから選ばれる少なくとも1種のジオール(以下、「イソソルビド類」と略記することがある)を用いた場合には、ポリカーボネートジオール中のイソソルビド類の残存量は少ない方が好ましく、通常10重量%以下であり、好ましくは5重量%以下であり、より好ましく3重量%以下であり、さらに好ましくは1重量%以下であり、特に好ましくは0.1重量%以下であり、最も好ましくは0.01重量%以下である。ポリカーボネートジオール中の原料ジオールの残存量が多いと、ポリウレタンとした際のソフトセグメント部位の分子長が不足する場合がある。
本発明の第1の態様に係るポリカーボネートジオールを製造する場合には、後述するように、重合を促進するために必要に応じてエステル交換触媒を用いることが可能である。その場合、得られたポリカーボネートジオール中にその触媒が残存することがあるが、過度に多くの触媒が残存するとポリウレタン化反応の際に反応の制御が困難となり、ポリウレタン化反応を想定以上に促進してゲル化してしまい、均一なポリウレタンが得られない場合があり、残存しない方が好ましい。
ポリカーボネートジオール生成物中には、製造の際に副生した環状のカーボネートが含まれることがある。例えば原料ジオールに1,3-プロパンジオールを用いた場合、1,3-ジオキサン-2-オンもしくはさらにこれらが2分子ないしそれ以上で環状カーボネートとなったもの等が環状化合物として生成してポリカーボネートジオール中に含まれる場合がある。これらの化合物は、ポリウレタン化反応においては副反応をもたらす可能性のある不純物であるので製造の段階でなるべく除去しておくのが望ましい。
本発明の第1の態様に係るポリカーボネートジオール中に含まれるこれら不純物環状カーボネートの含有量は、限定されるものではないが、通常3重量%以下、好ましくは1重量%以下、より好ましくは0.5重量%以下である。
本発明の第1の態様に係るポリカーボネートジオールのウレタン化反応における反応速度は、前記ポリカーボネートジオールをN,N-ジメチルホルムアミドの溶液とし、ポリカーボネートジオールのモル等量に対して0.98倍のジフェニルメタンジイソシアネートを添加して、動力源としてモーターを用いて所定時間100rpmで攪拌した後の前記モーターの負荷値[V]として評価することができる。ジフェニルメタンジイソシアネート添加後30分後のモーター負荷値の下限は通常0.10V、好ましくは0.13V、より好ましくは0.20V、上限は通常2.00V、好ましくは1.95V、より好ましくは1.90Vである。また、ジフェニルメタンジイソシアネート添加後60分後のモーター負荷値の下限は通常0.10V、好ましくは0.13V、より好ましくは0.20V、上限は通常2.00V、好ましくは1.95V、より好ましくは1.90Vである。上記下限未満の場合には、もはや重合が進行しない傾向があり、上記上限超過の場合には、非常に高い分子量となってしまうかゲル化してしまう傾向がある。
本発明の第1の態様に係るポリカーボネートジオールは、前述の構造(A)を与えるイソソルビドに代表される原料ジオールと、必要に応じて用いられる前述の構造(B)を与える原料ジオール等のジオール類と、前述の炭酸ジエステルとを、必要に応じてエステル交換触媒を用いてエステル交換させることにより製造することができる。例えば、(i)イソソルビド、イソマンニド、及びイソイディッドから選ばれる少なくとも1種のジオール、(ii)ヘテロ原子を含有していてもよい炭素数1~15のジオール、及び(iii)炭酸ジエステルを、エステル交換触媒存在下に反応させて製造することができる。
以下にその製造方法について述べる。
エステル交換触媒として利用できる金属は、一般にエステル交換能があるとされている金属であれば制限なく用いることができる。
触媒金属の例を挙げると、リチウム、ナトリウム、カリウム、ルビジウム、セシウム等の周期表1族金属;マグネシウム、カルシウム、ストロンチウム、バリウム等の周期表2族金属;チタン、ジルコニウム等の周期表4族金属;ハフニウム等の周期表5族金属;コバルト等の周期表9族金属;亜鉛等の周期表12族金属;アルミニウム等の周期表13族金属;ゲルマニウム、スズ、鉛等の周期表14族金属;アンチモン、ビスマス等の周期表15族金属;ランタン、セリウム、ユーロピウム、イッテルビウム等ランタナイド系金属等が挙げられる。これらのうち、エステル交換反応速度を高めるという観点から、周期表1族金属、周期表2族金属、周期表4族金属、周期表5族金属、周期表9族金属、周期表12金属、周期表13族金属、周期表14族金属が好ましく、周期表1族金属、周期表2族金属がより好ましく、周期表2族金属がさらに好ましい。周期表1族金属の中でも、リチウム、カリウム、ナトリウムが好ましく、リチウム、ナトリウムがより好ましく、ナトリウムがさらに好ましい。周期表2族金属の中でも、マグネシウム、カルシウム、バリウムが好ましく、カルシウム、マグネシウムがより好ましく、マグネシウムがさらに好ましい。これらの金属は金属の単体として使用される場合と、水酸化物や塩等の金属化合物として使用される場合がある。塩として使用される場合の塩の例としては、塩化物、臭化物、ヨウ化物等のハロゲン化物塩;酢酸塩、ギ酸塩、安息香酸塩等のカルボン酸塩;メタンスルホン酸やトルエンスルホン酸、トリフルオロメタンスルホン酸等のスルホン酸塩;燐酸塩や燐酸水素塩、燐酸二水素塩等の燐含有の塩;アセチルアセトナート塩;等が挙げられる。触媒金属は、さらにメトキシドやエトキシドの様なアルコキシドとして用いることもできる。
これらの金属、及び金属化合物は、1種を単独で用いてもよく、2種以上を併用してもよい。
本発明の第1の態様に係るポリカーボネートジオールの製造において、炭酸ジエステルの使用量は、特に限定されないが、通常ジオール類の合計1モルに対するモル比で下限が好ましくは0.50、より好ましくは0.70、さらに好ましくは0.80、よりさらに好ましくは0.90、特に好ましくは0.95、最も好ましくは0.98であり、上限は通常1.20、好ましくは1.15、より好ましくは1.10である。炭酸ジエステルの使用量が上記上限超過では得られるポリカーボネートジオールの末端基が水酸基でないものの割合が増加する、又は、分子量が所定の範囲とならず本発明の第1の態様に係るポリカーボネートジオールを製造できない場合があり、前記下限未満では所定の分子量まで重合が進行しない場合がある。
反応原料の仕込み方法は、特に制限はなく、ジオールと炭酸エステルと触媒の全量を同時に仕込み反応に供する方法や、炭酸エステルが固体の場合まず炭酸エステルを仕込んで加温、溶融させておき後からジオールと触媒を添加する方法、逆にジオールを先に仕込んでおいて溶融させ、ここへ炭酸エステルと触媒を投入する方法、ジオールの一部と炭酸エステル類又はクロロ炭酸エステル類を反応させてジオールのジエステル炭酸塩誘導体を合成した後に残りのジオールと反応させる方法、等自由にその方法は選択できる。本発明の第1の態様に係るポリカーボネートジオールにおいて分子鎖の末端がアルキルオキシ基又はアリールオキシ基である数の割合を5%と以下とするために、使用するジオールの一部を反応の最後に添加する方法を採用することも可能である。その際に最後に添加するジオールの量の上限は、仕込むべきジオール量の通常は20%、好ましくは15%、さらに好ましくは10%であり、下限は通常0.1%、好ましくは0.5%、さらに好ましくは1.0%である。
この際の反応終了時の反応圧力は、特に限定はされないが、通常上限が、10kPa、好ましくは5kPa、より好ましくは1kPaである。これら軽沸成分の留出を効果的に行うために、反応系へ窒素、アルゴン、ヘリウム等の不活性ガスを少量通じながら該反応を行うこともできる。
これらは1種を単独で用いてもよく、2種以上を併用してもよい。
反応後は、前記のポリカーボネートジオール生成物中の末端構造がアルキルオキシ基である不純物、アリールオキシ基である不純物、フェノール類、原料ジオールや炭酸エステル、副生する軽沸の環状カーボネート、さらには添加した触媒等を除去する目的で精製を行うことができる。その際の精製は軽沸化合物については、蒸留で留去する方法が採用できる。蒸留の具体的な方法としては減圧蒸留、水蒸気蒸留、薄膜蒸留等特にその形態に制限はなく、任意の方法を採用することが可能である。また、水溶性の不純物を除くために水、アルカリ性水、酸性水、キレート剤溶解溶液等で洗浄してもよい。その場合、水に溶解させる化合物は任意に選択できる。
本発明の第1の態様に係るポリウレタンは、上述の本発明の第1の態様に係るポリカーボネートジオールを用いて得られるものである。
例えば、本発明の第1の態様に係るポリカーボネートジオールとポリイソシアネート及び鎖延長剤を常温から200℃の範囲で反応させることにより、本発明の第1の態様に係るポリウレタンを製造することができる。
また、本発明の第1の態様に係るポリカーボネートジオールと過剰のポリイソシアネートとをまず反応させて末端イソシアネートのプレポリマーを製造し、さらに鎖延長剤を用いて重合度を上げてポリウレタンを製造することができる。
<ポリイソシアネート>
本発明の第1の態様に係るポリカーボネートジオールを用いてポリウレタンを製造するのに使用されるポリイソシアネートとしては、脂肪族、脂環族又は芳香族の各種公知のポリイソシアネート化合物が挙げられる。
また、本発明の第1の態様に係るポリウレタンを製造する際に用いられる鎖延長剤は、イソシアネート基と反応する活性水素を少なくとも2個有する低分子量化合物であり、通常ポリオール及びポリアミンを挙げることができる。
これらの鎖延長剤は単独で用いることも、あるいは2種以上を組み合わせ用いることも可能である。
本発明の第1の態様に係るポリウレタンを製造する際には、得られるポリウレタンの分子量を制御する目的で、必要に応じて1個の活性水素基を持つ鎖停止剤を使用することができる。
これらの鎖停止剤としては、水酸基を有するエタノール、プロパノール、ブタノール、ヘキサノール等の脂肪族モノオール、アミノ基を有するジエチルアミン、ジブチルアミン、n-ブチルアミン、モノエタノールアミン、ジエタノールアミン等の脂肪族モノアミンが例示される。
これらは、1種を単独で用いてもよく、2種以上を併用してもよい。
本発明の第1の態様に係るポリウレタンを製造する際のポリウレタン形成反応において、トリエチルアミン、N-エチルモルホリン、トリエチレンジアミン等のアミン系触媒又はトリメチルチンラウレート、ジブチルチンジラウレート等のスズ系触媒等のスズ系の化合物、さらにはチタン系化合物等の有機金属塩等に代表される公知のウレタン重合触媒を用いることもできる。ウレタン重合触媒は、1種を単独で用いてもよく、2種以上を併用してもよい。
本発明の第1の態様に係るポリウレタンを製造する際、本発明の第1の態様に係るポリカーボネートジオールに加えて、必要に応じて公知の他のポリオールを併用することも可能である。その際に使用可能な公知のポリオールの例としては、ポリエチレングリコール、ポリプロピレングリコール、ポリオキシテトラメチレングリコール(PTMG)等のポリオキシアルキレングリコール類;ビスフェノールA,グリセリンのエチレンオキシド付加物、プロピレンオキシド付加物等のポリアルコールのアルキレンオキシド付加物類;ポリエステルポリオール、ポリカプロラクトンポリオール、ポリカーボネートポリオール等が挙げられる。
ものが挙げられる。
本発明の第1の態様に係るポリウレタンを製造する際のポリウレタン形成反応は溶剤を用いて行ってもよい。
好ましい溶剤としては、ジメチルホルムアミド、ジエチルホルムアミド、ジメチルアセトアミド,N-メチルピロリドン等のアミド系溶剤;ジメチルスルホキシド等のスルホキシド系溶剤;テトラヒドロフラン、ジオキサン等のエーテル系溶剤;メチルイソブチルケトン、メチルエチルケトン、シクロヘキサノン等のケトン系溶剤;酢酸メチル、酢酸エチル、酢酸ブチル等のエステル系溶剤;及びトルエン、キシレン等の芳香族炭化水素系溶剤等が挙げられる。これらの溶剤は、単独で用いることも、2種以上の混合溶媒として用いることも可能である。
上述の反応試剤を用いて本発明の第1の態様に係るポリウレタンを製造する方法としては、一般的に実験ないし工業的に用いられる全ての製造方法が使用できる。
一段法とは、ワンショット法とも呼ばれ、本発明の第1の態様に係るポリカーボネートジオールを含むポリオール、ポリイソシアネート、及び鎖延長剤を一括に仕込むことで反応を行う方法である。
ポリイソシアネートの使用量が多すぎると、未反応のイソシアネート基が副反応を起こし、所望の物性が得られにくくなる傾向があり、少なすぎると、ポリウレタンの分子量が十分に大きくならず、所望の性能が発現されない傾向がある。
二段法は、プレポリマー法ともよばれ、予めポリイソシアネートと本発明の第1の態様に係るポリカーボネートジオールを含むポリオールを、ポリイソシアネート/ポリオール反応当量比1.0~10.00で反応させて、末端がイソシアネート基となったプレポリマーを製造し、次いでこれに多価アルコール、アミン化合物等の活性水素を有する鎖延長剤を加えることによりポリウレタンを製造する方法である。
(1) 溶媒を用いずに、まず直接ポリイソシアネートとポリカーボネートジオールを含むポリオールを反応させてプレポリマーを合成し、そのまま以降の鎖延長反応に使用する。
(2) (1)の方法でプレポリマーを合成しその後に溶媒に溶かして、以降の鎖延長反応に使用する。
(3) 初めから溶媒を用いてポリイソシアネートとポリカーボネートジオールを含むポリオールを反応させ、その後溶媒中で鎖延長反応を行う。
このイソシアネート使用量が多すぎると、過剰のイソシアネート基が副反応を起こしてポリウレタンの物性に好ましくない影響を与える傾向があり、少なすぎると、得られるポリウレタンの分子量が十分に上がらず強度や熱安定性に問題を生じる傾向がある。
上記鎖延長化反応を行う際に、分子量を調整する目的で、一官能性の有機アミンやアルコールを共存させてもよい。
触媒としては例えばトリエチルアミン、トリブチルアミン、ジブチル錫ジラウレ-ト、オクチル酸第一錫、酢酸、燐酸、硫酸、塩酸、スルホン酸等の1種又は2種以上が挙げられ、安定剤としては例えば2,6-ジブチル-4-メチルフェノール、ジステアリルチオジプロピオネ-ト、ジ・ベ-タナフチルフェニレンジアミン、トリ(ジノニルフェニル)ホスファイト等の1種又は2種以上が挙げられる。しかしながら、鎖延長剤が短鎖脂肪族アミン等の反応性の高いものの場合は、触媒を添加せずに実施することが好ましい。
本発明の第1の態様に係るポリカーボネートジオールを用いて、水系のポリウレタンエマルションを製造することも可能である。
その場合、ポリカーボネートジオールを含むポリオールとポリイソシアネートを反応させてプレポリマーを製造する際に、少なくとも1個の親水性官能基と少なくとも2個のイソシアネート反応性の基を有する化合物を混合してプレポリマーを形成し、これを鎖延長剤と反応させてポリウレタンエマルションとする。
本発明の第1の態様に係るポリカーボネートジオールを用いて製造した本発明の第1の態様に係るポリウレタンには、熱安定剤、光安定剤、着色剤、充填剤、安定剤、紫外線吸収剤、酸化防止剤、粘着防止剤、難燃剤、老化防止剤、無機フィラー等の各種の添加剤を、本発明の第1の態様に係るポリウレタンの特性を損なわない範囲で、添加、混合することができる。
リン化合物としては、PEP-36、PEP-24G、HP-10(いずれも商品名:旭電化(株)製)Irgafos 168(商品名:チバガイギ一社製)等が挙げられる。
イオウを含む化合物の具体例としては、ジラウリルチオプロピオネート(DLTP)、ジステアリルチオプロピオネート(DSTP)等のチオエーテル化合物が挙げられる。
本発明の第1の態様に係るポリウレタンを使用してフィルムを製造する場合、そのフィルムの厚さは、通常下限が10μm、好ましくは20μm、さらに好ましくは30μm、上限は通常1,000μm、好ましくは500μm、より好ましくは100μmである。
フィルムの厚さが厚すぎると、十分な透湿性が得られない傾向があり、また、薄過ぎるとピンホールを生じやすかったり、フィルムがブロッキングしやすく取り扱いにくくなる傾向がある。
<分子量>
本発明の第1の態様に係るポリウレタンの分子量は、その用途に応じて適宜調整され、特に制限はないが、GPCにより測定されるポリスチレン換算の数平均分子量(Mn)として5万~50万、特に10万~30万であることが好ましい。分子量が上記下限よりも小さいと十分な強度や硬度が得られないことがあり、上記上限よりも大きいと加工性等ハンドリング性が悪化する傾向がある。
本発明の第1の態様に係るポリウレタンは、幅10mm、長さ100mm、厚み約50~100μmの短冊状のサンプルに対して、チャック間距離50mm、引張速度500mm/分にて、温度23℃、相対湿度55%で測定した引張破断伸度の下限が通常50%、好ましくは100%、さらに好ましくは150%であり、上限は通常400%、好ましくは350%、さらに好ましくは300%である。引張破断伸度が上記下限未満では加工性等ハンドリング性が悪化する傾向があり、上記上限を超えると十分な強度、硬度が得られない場合がある。
本発明の第1の態様に係るポリウレタンは、幅10mm、長さ100mm、厚み約50~100μmの短冊状のサンプルに対して、チャック間距離50mm、引張速度500mm/分にて、温度23℃、相対湿度55%で測定した100%モジュラスの下限が通常10MPa以上、好ましくは15MPa以上、さらに好ましくは20MPa以上であり、上限は通常200MPa以下、好ましくは150MPa以下、さらに好ましくは100MPa以下である。100%モジュラスが上記下限未満では強度や硬度が不足する場合があり、上記上限を超えると加工性等ハンドリング性が悪化する傾向がある。
本発明の第1の態様に係るポリウレタンは、厚さ100μmのポリウレタンフィルムを形成し、幅10mmの短冊形に切り取り、50mmの幅で基準線を記したサンプルを気温23℃、相対湿度55%RHの恒温恒湿の状態にて、長さ方向に1MPaの荷重を加え、16時間経過後に荷重を外したときの基準線間の長さ(Lmm)を測定して求めたクリープ特性((L-50)/50)×100(%))の下限は特に制限はなく小さいほど好ましいが通常5%、好ましくは2%、より好ましくは1%で、上限が通常20%、好ましくは10%である。このクリープ特性が上記下限未満ではポリウレタンの粘度が高く加工時の負荷が大きくなる場合があり、上記上限を超えると強度や硬度が不足する場合がある。
本発明の第1の態様に係るポリウレタンは、剛性に富む構造(A)を有することに起因して高い硬度が得られるという特徴がある。具体的には例えば、厚さ約50~100μmのフィルム状のサンプルを試験機(II形、学振形)に固定し、JIS L0849に準じて4.9Nの荷重にて摩擦試験を500往復行った際の重量減少割合({(試験前のサンプル重量-試験後のサンプル重量)/(試験前のサンプル重量)}×100)で表記すると、通常その重量減少割合の上限は2%、好ましくは1.5%、さらに好ましくは1.0%である。一方、この重量減少割合の下限は、通常0.1%、好ましくは0.05%、さらに好ましくは0.01%である。
本発明の第1の態様に係るポリウレタンは、多様な特性を発現させることができ、フォーム、エラストマー、塗料、繊維、接着剤、床材、シーラント、医療用材料、人工皮革、コーティング剤、水系ポリウレタン塗料等に広く用いることができる。
特に、人工皮革、合成皮革、水系ポリウレタン、接着剤、医療用材料、床材、コーティング剤等の用途に、本発明の第1の態様に係る高剛性ポリウレタンを用いると、耐摩擦性、耐ブロッキング性に優れるため、引っ掻き等による傷がつきにくく、摩擦による劣化の少ないという良好な表面特性を付与することができる。
本発明の第1の態様に係るポリウレタンを弾性繊維として使用する場合のその繊維化の方法は、紡糸できる方法であれば特に制限なく実施できる。例えば、一旦ペレット化した後、溶融させ、直接紡糸口金を通して紡糸する溶融紡糸方法が採用できる。本発明の第1の態様に係るポリウレタンから弾性繊維を溶融紡糸により得る場合、紡糸温度は好ましくは250℃以下、より好ましくは200℃以上235℃以下である。
本発明の第1の態様に係るポリカーボネートジオールを用いて、活性エネルギー線硬化性重合体組成物を製造することも可能である。
本発明の第1の態様に係る活性エネルギー線硬化性重合体組成物は、本発明の第1の態様に係るポリカーボネートジオールと、ポリイソシアネート、及びヒドロキシアルキル(メタ)アクリレート、を含む原料の反応物であるウレタン(メタ)アクリレート系オリゴマーを含有する。ここで、ポリイソシアネート、及びヒドロキシアルキル(メタ)アクリレート、並びに、反応物であるウレタン(メタ)アクリレート系オリゴマーとしての好適な態様は、後述する本発明の第2の態様に係る活性エネルギー線硬化性重合体組成物における態様と同様である。
本発明の別の態様は、活性エネルギー線硬化性重合体組成物である。本発明の第2の態様に係る活性エネルギー線硬化性重合体組成物は、ウレタン(メタ)アクリレート系オリゴマーを含有する。本発明の第2の態様で用いられるウレタン(メタ)アクリレート系オリゴマーは、分子内に一個以上のラジカル重合性(メタ)アクリロイル基と少なくとも二個のウレタン結合を有する化合物である。ウレタン(メタ)アクリレート系オリゴマーは、活性エネルギー線照射による硬化物が、バランスの取れた引張強度及び優れた引張伸度を有し、また組成物としての表面硬化性に優れ、タックが残りにくい点で、他の代表的な活性エネルギー線硬化性オリゴマーであるエポキシ(メタ)アクリレート系オリゴマー、アクリル(メタ)アクリレート系オリゴマー等に比べて優れている。
以下に、ウレタン(メタ)アクリレート系オリゴマーの原料の各成分について説明する。
本発明の第2の態様におけるウレタン(メタ)アクリレート系オリゴマーを構成するポリイソシアネートは、一分子中に二個以上のイソシアネート基及びイソシアネート基を含む置換基の一方又は両方(「イソシアネート基類」とも言う)を有する化合物である。ポリイソシアネートは一種でもよいし、二種以上でもよい。また一種のポリイソシアネートにおいて、イソシアネート基類は同一であってもよいし、異なっていてもよい。
本発明の第2の態様におけるウレタン(メタ)アクリレート系オリゴマーを構成するポリカーボネートジオールは、第1の態様に係るポリカーボネートジオールと同一である。しかしながら、第1の態様に係るポリカーボネートジオールを、第2の態様に係るウレタン(メタ)アクリレート系オリゴマーを構成するポリカーボネートジオールとして適用する場合、ポリカーボネートジオールの好ましい範囲は、第1の態様に係るポリカーボネートジオール単独としての好ましい範囲と異なる場合があり、以下相違点を中心に説明する。
なお、ポリカーボネートジオールの1分子当りの平均水酸基数は、後述する方法によって得られた数平均分子量及び水酸基価から算出することができる。
本発明の第2の態様におけるウレタン(メタ)アクリレート系オリゴマーを構成するヒドロキシアルキル(メタ)アクリレートは、一個以上の水酸基と一個以上の(メタ)アクリロイル基と炭素数1~30の炭化水素基とを有する化合物である。ヒドロキシアルキル(メタ)アクリレートは、一種でも二種以上でもよい。
本発明の第2の態様におけるウレタン(メタ)アクリレート系オリゴマーは、その原料に、本発明の効果が得られる範囲において、他の成分をさらに含有していてもよい。このような他の成分としては、例えば、前記構造(A)を含むポリカーボネートジオールを除く数平均分子量500を超える高分子量ポリオール、数平均分子量500以下の低分子量ポリオール、及び鎖延長剤が挙げられる。
GPC(東ソー社製「HLC-8120GPC」)を用いて、溶媒としてテトラヒドロフラン、標準サンプルとしてポリスチレン、カラムとしてTSK gel superH1000+H2000+H3000を使用して、送液速度0.5cm3/分、カラムオーブン温度40℃にて、数平均分子量を測定する。
三角フラスコにポリイソシアネート1gと0.5モル/リットルのジブチルアミントルエン溶液を20mL入れ、アセトン100mLで希釈した後に25℃で30分反応させる。その後、0.5モル/リットルの塩酸水溶液で滴定する。また、三角フラスコにポリイソシアネートを入れなかった以外は、同様に滴定を行い、ブランクを求める。そして、以下の式によりNCO%及び数平均分子量を算出する。
NCO%={(B1-A1)×0.5×42.02}/(1×1000)×100
A1:ポリイソシアネート含有溶液の滴定に要した塩酸水溶液の量(mL)
B1:ポリイソシアネートを含有しないブランク溶液の滴定に要した塩酸水溶液の量(mL)
ポリイソシアネートの数平均分子量=(42.02/NCO%)×一分子のポリイソシアネートに含まれるNCO基の数
三角フラスコにポリオール2gと0.5モル/リットルの無水フタル酸ピリジン溶液を入れ、100℃で2時間反応させた後にアセトン150mLで希釈する。その後、0.5モル/リットルの水酸化ナトリウム水溶液で滴定する。また、三角フラスコにポリオールを入れなかった以外は、同様に滴定を行い、ブランクを求める。そして、以下の式によりOH価及び数平均分子量を算出する。
OH価={(B2-A2)×0.5×56.11×1000}/(2×1000)
A2:ポリオール含有溶液の滴定に要した水酸化ナトリウム水溶液の量(mL)
B2:ポリオールを含有しないブランク溶液の滴定に要した水酸化ナトリウム水溶液の量(mL)
ポリオールの数平均分子量={(56.11×1000)/OH価}×官能基の数
(2) 全成分を同時に一括添加して反応させるワンショット法。
(3) 前記ポリイソシアネートと前記ヒドロキシアルキル(メタ)アクリレートとを先に反応させ、分子中に(メタ)アクリロイル基とイソシアネート基とを同時に有するウレタン(メタ)アクリレートプレポリマーを合成した後、得られたプレポリマーに、それら以外の原料成分を反応させる方法。
<数平均分子量>
数平均分子量(Mn)は、生成物をCDCl3に溶解して400MHzにて1H-NMR(BRUKER製AVANCE400)を測定、その積分値より算出した。
<分子量分布 Mw/Mn>
分子量分布は下記条件によるGPC測定によりポリスチレン換算Mn、Mw値を求め、算出した。
装置 :東ソー社製 Tosoh 8020
カラム :PLgel 3um MIXED-E(7.5mmI.D.×30cmL
×2本)
溶離液 :THF(テトラヒドロフラン)
流速 :0.5mL/min
カラム温度:40℃
RI検出器:RI(装置 Tosoh 8020内蔵)
生成物をCDCl3に溶解して400MHz 1H-NMR(BRUKER製AVANCE400)を測定し、各成分のシグナルの積分値より算出した。その際の検出限界は、サンプル全体の重量に対する末端フェノキシドの重量として200ppm、エーテル基の重量として500ppm、原料ジオール又はフェノールの重量として、フェノールは100ppm、イソソルビドは0.1重量%、o-ジクロロベンゼンとして200ppmである。また末端フェノキシドの割合は、末端フェノキシドの1プロトン分の積分値と末端全体(分子鎖末端の構造(A)、分子鎖末端の構造(B)及び末端フェノキシドの3つの構造の合計)の1プロトン分の積分値の比から求めており、末端フェノキシドの検出限界は末端全体に対して0.05%である。
炭酸ジエステル(ジフェニルカーボネート)残存量をGPCによる定量分析にて以下の条件で測定した。
(分析条件)
カラム:Tskgel G2000H XL7.8mmI.D×30cmL 4本
溶離液:THF(テトラヒドロフラン)
流速:1.0mL/min
カラム温度:40℃
RI検出器:RID-10A(島津製作所)
生成物をCDCl3に溶解して400MHz 1H-NMR(BRUKER製AVANCE400)を測定し、その積分値より算出した。算出方法を以下に記載する。
NMRチャート上の下記ケミカルシフトの積分値からそれぞれの比率を求める。なお、ケミカルシフト値は組成により若干異なる場合があるので、その場合は積分値の取り方を適宜変更する場合がある。
δ5.22~4.98ppmの積分値=a
δ4.79~4.61ppmの積分値=b
δ4.61~4.47ppmの積分値=c
δ3.68~3.51ppmの積分値=d
δ2.73~2.66ppmの積分値=e
δ1.52~1.30ppmの積分値=f
(A)末端1=b-e
(A)中=c-(A)末端1
(A)末端2=a-(A)末端1-(A)中×2
(B)末端=(d-e-(A)末端1)÷2
(B)中=(f-(B)末端×4)÷4
分子鎖末端の構造(A)の数=(A)末端1+(A)末端2
分子鎖末端の構造(A)と構造(B)の数の合計=(A)末端1+(A)末端2+(B)末端
分子鎖中の構造(A)の数=(A)末端1+(A)末端2+(A)中
分子鎖中の構造(A)と構造(B)の数の合計=(A)末端1+(A)末端2+(A)中+(B)末端+(B)中
JIS K0071-1に準拠して、比色管に入れた標準液と比較して測定した。
生成物を50℃に加熱した後、E型粘度計(BROOKFIELD製DV-II+Pro、コーン:CPE-52)を用いて測定した。
下記の手法により測定、算出した。
無水フタル酸14gをピリジン100mLに溶解させフタル化剤を調製した。このフタル化剤5mLにポリカーボネートジオールを1.50~1.60g溶かし、100℃で1時間反応させた。この反応液を室温に冷却した後にTHF/H2O(75/25)混合溶媒25mLで希釈した。この液を、1N水酸化ナトリウム水溶液を用いて滴定し、変曲点を検出するまでに用いた水酸化ナトリウム水溶液の量を求めた(本試験)。またフタル化剤5mLをTHF/H2O(75/25)混合溶媒25mLで希釈した溶液についても同様の滴定(空試験)を行った。
得られた水酸化ナトリウム水溶液の容量から下記の式で水酸基価を求めた。また、この水酸基価から数平均分子量を算出した。
下記の計算式により算出した。
1分子辺りの平均水酸基数
=[(数平均分子量)×(水酸基価)]/[1000×(KOHの分子量)]
なお、数平均分子量としては前述の1H-NMRでの測定値を、水酸基価としては前述の滴定での算出値を用いた。
ポリカーボネートジオール生成物を約0.1g測り取り、4mLのアセトニトリルに溶解した後、20mLの純水を加えてポリカーボネートジオールを析出させ、析出したポリカーボネートジオールをろ過にて除去した。そしてろ過後の溶液を純水で所定濃度まで希釈し、金属イオン濃度をイオンクロマトグラフィーで分析した。なお、溶媒として使用するアセトニトリルの金属イオン濃度をブランク値として測定し、溶媒分の金属イオン濃度を差し引いた値をポリカーボネートジオール生成物の金属イオン濃度とした。
測定条件は以下の表1に示す通りである。分析結果と予め作成した検量線を使用し、マグネシウムイオン濃度を求めた。
<分子量>
(株)島津製作所製GPC装置(カラムTSKgelSuperHZM-N,溶媒は臭化リチウム添加ジメチルアセトアミド)を使用し、標準ポリスチレン換算の数平均分子量(Mn)を分子量とした。
幅10mm、長さ100mm、厚み100μmの短冊状のポリウレタンサンプルに対してJIS K6301に準じ、引張試験機((株)オリエンテック製テンシロンRTC-1210A)を用いて引張破断伸度と100%モジュラスを測定した。なお、チャック間距離は50mm、引張速度は500mm/分にて、温度23℃(相対湿度55%)の条件下で実施した。
厚さ100μmのポリウレタンフィルムを形成し、幅10mmの短冊形に切り取り、50mmの幅で基準線を記してサンプルとした。このサンプルを気温23℃、相対湿度55%RHの恒温恒湿の状態にて、長さ方向に1MPaの荷重を加え、16時間経過後に荷重を外した。基準線間の長さ(Lmm)を測定し、クリープ特性((L-50)/50)×100(%)を求めた。
厚さ100μmのポリウレタンフィルムを形成し、このフィルムを金属鏡面に気泡を含まないように貼り付けて固定し、JIS K-5600-5-4に準じて測定した。
厚さ100μmのポリウレタンフィルムを形成し、このフィルムを試験機(II形、学振形)に固定し、JIS L0849に準じて4.9Nの荷重にて摩擦試験を最大500往復行った。
得られたポリカーボネートジオールのウレタン化反応における反応性は、N,N-ジメチルホルムアミド(以下、DMF)の溶液としてから、ポリカーボネートジオールのOH価から推算される、添加するポリカーボネートジオールのモル等量に対して0.98倍のジフェニルメタンジイソシアネート(以下、MDI)量を所定温度にて添加し、その攪拌を100rpmに保った場合の攪拌モーター負荷(単位 V)の変化にて負荷値(トルク)を観察した。トルクは、MDI添加前の値を差し引いた差分を読み取った。モーターは東京理化器械株式会社の攪拌機マゼラZ-1210を用いた。重合反応容器は容量500mLのセパラブルフラスコを用い、攪拌羽根はイカリ型を2枚組み合わせた4枚羽根を用いた。用いる容器等はよく洗浄し乾燥した上で、一連の操作は空気との接触を極力避けて、窒素流通あるいは窒素封入の条件にて行った。なお、モーター負荷値の検出限界は5Vである。ただし、モーター負荷値が約2Vを超える状態では重合液の粘度が高すぎ、攪拌羽根による剪断後の重合液が重力で戻りきらず、部分的に空回りの状態となるため、正しいモーター負荷値が測定できなかった。
<数平均分子量の算出方法>
各実験例及び参考実験例のウレタン(メタ)アクリレート系オリゴマーは、ポリイソシアネート、ポリカーボネートジオール、及びヒドロキシアルキル(メタ)アクリレートの三種の成分を構成単位として含んでいる。これらの構成単位は、ウレタン(メタ)アクリレート系オリゴマーにおいて、各成分の分子量が保たれたまま形成されていることから、本実験例及び参考実験例では、ウレタン(メタ)アクリレート系オリゴマーを生成するまでの各成分のモル比と各成分の分子量との積の合計によってウレタン(メタ)アクリレート系オリゴマーの平均分子量を算出した。
GPC(東ソー社製「HLC-8120GPC」)で、溶媒にTHF、標準サンプルにポリスチレン、カラムにTSKgel superH1000+H2000+H3000を使用して、送液速度0.5mL/分、カラムオーブン温度40℃にて、ウレタン(メタ)アクリレート系オリゴマーの数平均分子量を測定した。
各実験例及び参考実験例における計算網目架橋点間分子量は、ウレタンアクリレート系オリゴマーのプレポリマーにおけるヒドロキシアルキル(メタ)アクリレートに対する反応基がプレポリマーの両末端のイソシアネート基であり、プレポリマーの両末端にウレタン結合で結合したヒドロキシアルキル(メタ)アクリレートがラジカル重合で付加することから、組成物中のウレタンアクリレート系オリゴマーの架橋点は、ウレタン(メタ)アクリレート系オリゴマーの両末端に位置する(メタ)アクリロイル基となり、よって以下の実験例及び参考実験例では活性エネルギー線硬化性重合体組成物は、前述した二官能(多官能)化合物単一系組成物となることから、下記の式から求めた。
活性エネルギー線硬化性重合体組成物1.2gを用いて、E型粘度計(トキメック社製「TVE-20H」)で回転数10rpm、ローター1°34’×R24に設定し、25℃で粘度を測定した。
硬化膜を10mm幅に切断し、テンシロン引張試験機(オリエンテック社製、テンシロンUTM-III-100)を用いて、温度23℃、相対湿度53%、引張速度50mm/分、チャック間距離50mmの条件で引張試験を行って破断伸度、破断強度及び引張弾性率を測定した。
硬化膜に黒色油性インキ、赤色油性インキ、青色水性インキ(パイロット社製インキカートリッジインキ/ブルーブラック/IRF-12S-BB)、赤色水性インキ(パイロット社製カートリッジインキ/レッド/IRF-12S-R)、10質量%HCl水溶液、又は10質量%NaOH水溶液(以下、総称して汚染物という)0.03gを滴下して接触させ、室温(23℃)にて、24時間各々静置した後、黒色油性インキ、赤色油性インキの場合はIPA、青色水性インキ、赤色水性インキ、10質量%HCl水溶液、10質量%NaOH水溶液の場合は水を含んだ脱脂綿で汚染物を拭き取った後の汚染度を目視により評価した。評価基準は以下の通りである。
○:汚染物を完全に拭き取ることができる
△:汚染物がわずかに残る
×:汚染物の残りが著しい
磨耗試験機(新東科学社製;ヘイドン Dynamic strain amplifier 3K-34B)を使用し、硬度6B、5B、4B、3B、2B、B、HB、F、H、2Hの鉛筆(三菱鉛筆社製;品番UNI、日塗検査済、鉛筆引っ掻き値試験用)を用いて、23℃/53%RH条件下で評価した。磨耗試験機に硬度6Bを装着し、加重1kgf(9.8N)、引っ掻き速度25mm/分にて1cm走引し、走引痕の有無を目視で確認した。走引痕が観測されない場合は1段階硬い鉛筆に交換して同様の操作を繰り返し、走引痕が観測されない最も硬い鉛筆硬度を評価結果とした。
攪拌機、留出液トラップ、及び圧力調整装置を備えた1Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:195.9g、イソソルビド:242.3g、ジフェニルカーボネート:658.2g、酢酸マグネシウム4水和物:4.3mgを入れ、窒素ガス置換した。内温160℃まで昇温して内容物を加熱溶解し、1時間反応させた。その後、2時間かけて圧力を0.27kPaまで下げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。次に180℃、2.7kPaで45分間窒素ガスバブリングを行い、フェノール及び未反応のジオールを留出させて除きながら反応した。更にo-ジクロロベンゼンを400g加えた後、130℃で圧力を0.27kPaに保持したまま2時間反応させ、その後2.7kPaに保持したまま窒素ガスで2時間バブリングし、フェノールを除きながらポリカーボネートジオールの重合度を上げる反応を行った。得られたポリカーボネートジオール生成物の収量は488.8gであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた1Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:293.9g、イソソルビド:121.2g、ジフェニルカーボネート:658.2g、酢酸マグネシウム4水和物:4.3mgを入れ、窒素ガスで置換した。内温160℃まで昇温して内容物を加熱溶解し、60分間反応させた。その後、2時間かけて圧力を0.27kPaまで下げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。次に180℃、2.7kPaで15分間窒素ガスバブリングを行い、フェノール及び未反応のジオールを留出させ除きながら反応した。更にo-ジクロロベンゼンを400g加えた後、130℃で圧力を0.27kPaに保持したまま5時間反応させ、その後2.7kPaに保持したまま窒素ガスにて13時間バブリングし、フェノールを除きながらポリカーボネートジオールの重合度を上げる反応を行った。得られたポリカーボネートジオール生成物の収量は454.2gであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた1Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:218.5g、イソソルビド:264.4g、ジフェニルカーボネート:620.0g、酢酸マグネシウム4水和物:4.7mgを入れ、窒素ガス置換した。内温160℃まで昇温して内容物を加熱溶解し、1時間反応させた。その後、2時間かけて圧力を0.27kPaまで下げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。次に160℃、0.27kPaで1.5時間窒素ガスバブリングを行い、フェノール及び未反応のジオールを留出させて除去した。更に110℃で圧力を0.27kPaに保持したまま窒素ガスで4時間バブリングし、フェノールを除去した。得られたポリカーボネートジオール生成物の収量は520.5gであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:202.4g、イソソルビド:750.9g、ジフェニルカーボネート:1046.8g、酢酸マグネシウム4水和物水溶液:8.7mL(濃度:8.4g/L、酢酸マグネシウム4水和物:73mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を5.33kPaまで下げ、130℃、5.33kPaで240分間、フェノールを留出させ除きながら反応した。そして、120分かけて圧力を0.40kPaまで下げた後、80分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。最後に160℃、0.40kPaで40分間、フェノール及び未反応のジオールを留出させ除去した。得られたポリカーボネートジオール生成物の収量は989.2gであった。
1Lセパラブルフラスコに予め融点以上(例えば120℃)に加温した実験例1-1で製造したポリカーボネートジオール:78.3gを加え、55℃設定のオイルバスにフラスコを漬けて加温しつつジメチルホルムアミド(DMF)を加えて溶解させた。約100rpmで攪拌を開始し、さらに1,4-ブタンジオール:3.6gを添加し、ステアリン酸スズ:0.014gを滴下した。次いで、ジフェニルメタンジイソシアネート(MDI)を液温が70℃を超えないような速度で19.8gを滴下した。その後、GPCで測定する重量平均分子量で15万を超える程度までMDIを徐々に2.6gまで滴下し、固形分濃度30重量%のポリウレタン溶液を得た。このポリウレタン溶液をドクターブレードにてポリエチレンフィルム上に均一膜厚に塗布し、乾燥機で乾燥しポリウレタンフィルムを得た。
実験例1-1で製造したポリカーボネートジオールの代わりに、実験例2-1で製造したポリカーボネートジオールを用いた以外は実験例1-2と同様に反応を行って、固形分濃度30重量%のポリウレタン溶液を得た。このポリウレタン溶液をドクターブレードにてポリエチレンフィルム上に均一膜厚に塗布し、乾燥機で乾燥しポリウレタンフィルムを得た。
実験例1-1で製造したポリカーボネートジオールの代わりに、ポリカーボネートジオール(デュラノールT6002、数平均分子量1,986、旭化成製)523gを用いた以外は実験例1-2と同様に反応を行って、固形分濃度30重量%のポリウレタン溶液を得た。このポリウレタン溶液をドクターブレードにてポリエチレンフィルム上に均一膜厚に塗布し、乾燥機で乾燥しポリウレタンフィルムを得た。
表2に、前記実験例1-1及び前記実験例2-1にて得られたポリカーボネートジオール生成物の物性と、前記実験例1-2及び前記実験例2-2にてこれらのポリカーボネートジオール生成物を用いて得たポリウレタンフィルムの物性を整理して示す。
攪拌器、還流冷却器、滴下漏斗、温度計を取り付けた四つ口フラスコに、ポリイソシアネートとしてイソホロンジイソシアネート119gを、ポリカーネートジオールとして実験例1-1のポリカーボネートジオール519gを入れ、更にメチルエチルケトン273gを入れてオイルバスにて80℃に加熱しながら9時間反応させた。反応終了後60℃まで冷却した後、ジオクチルスズジラウレート0.21g、メチルハイドロキノン0.35g、メチルエチルケトン27gを加え、ヒドロキシアルキル(メタ)アクリレートとしてヒドロキシエチルアクリレート62gを滴下して反応を開始させた。反応はオイルバスにて70℃に加熱しながら10時間行い、赤外吸収スペクトル(以下、IRと略記することがある)でのイソシアネート(NCO)基に由来したピークの減少により反応の進行を確認し、消失により反応の終点を確認して、ウレタン(メタ)アクリレート系オリゴマー1を得た。このようにして得られたウレタン(メタ)アクリレート系オリゴマー1の溶液を活性エネルギー線硬化性重合体組成物1とする。
得られた硬化膜1について、機械的特性、耐汚染性、耐磨耗性、及び鉛筆硬度を評価した。結果を表3に示す。
イソホロンジイソシアネート119gを112gとし、実験例1-1のポリカーボネートジオール519gを実験例2-1のポリカーボネートジオール530gとし、メチルエチルケトン273gを275g、メチルエチルケトン27gを25gとし、ヒドロキシエチルアクリレート62gを59gと変更した以外は、実験例1-3と同様にしてウレタン(メタ)アクリレート系オリゴマー2を得て、またウレタン(メタ)アクリレート系オリゴマー2の溶液である活性エネルギー線硬化性重合体組成物2を得た。
イソホロンジイソシアネート119gを200gとし、実験例1-1のポリカーボネートジオール519gを実験例3-1のポリカーボネートジオール396gとし、メチルエチルケトン273gを255g、メチルエチルケトン27gを45gとし、ヒドロキシエチルアクリレート62gを104gと変更した以外は、実験例1-3と同様にしてウレタン(メタ)アクリレート系オリゴマー3得て、またウレタン(メタ)アクリレート系オリゴマー3の溶液である活性エネルギー線硬化性重合体組成物3を得た。
イソホロンジイソシアネート119gを197gとし、実験例1-1のポリカーボネートジオール519gを実験例4-1のポリカーボネートジオール400gとし、メチルエチルケトン273gを256g、メチルエチルケトン27gを44gとし、ヒドロキシエチルアクリレート62gを103gと変更した以外は、実験例1-3と同様にしてウレタン(メタ)アクリレート系オリゴマー4を得て、またウレタン(メタ)アクリレート系オリゴマー4の溶液である活性エネルギー線硬化性重合体組成物4を得た。
イソホロンジイソシアネート119gを116gとし、実験例1-1のポリカーボネートジオール519gをポリカーボネートジオール(デュラノールT5652、数平均分子量2,000、旭化成社製)523gとし、プレポリマー生成反応前に添加するメチルエチルケトン273gを274gとし、プレポリマー生成反応終了後に添加するメチルエチルケトン27gを26gとし、ヒドロキシエチルアクリレート62gを61gと変更した以外は、実験例1-3と同様にしてウレタン(メタ)アクリレート系オリゴマーC1を得て、またウレタン(メタ)アクリレート系オリゴマーC1の溶液である活性エネルギー線硬化性重合体組成物C1を得た。
イソホロンジイソシアネート119gを117gとし、実験例1-1のポリカーボネートジオール519gをポリカーボネートジオール(クラレポリオールC-2050、数平均分子量1,990、クラレ社製)523gとし、プレポリマー生成反応前に添加するメチルエチルケトン273gを274gとし、プレポリマー生成反応終了後に添加するメチルエチルケトン27gを26gとし、ヒドロキシエチルアクリレート62gを61gと変更した以外は、実験例1-3と同様にしてウレタン(メタ)アクリレート系オリゴマーC2を得て、またウレタン(メタ)アクリレート系オリゴマーC2の溶液である活性エネルギー線硬化性重合体組成物C2を作製した。
イソホロンジイソシアネート119gを115gとし、実験例1-1のポリカーボネートジオール519gをポリカーボネートジオール(ニッポラン980N、数平均分子量2,030、日本ポリウレタン社製)525gとし、プレポリマー生成反応前に添加するメチルエチルケトン273gを274gとし、プレポリマー生成反応終了後に添加するメチルエチルケトン27gを26gとし、ヒドロキシエチルアクリレート62gを60gと変更した以外は、実験例1-3と同様にしてウレタン(メタ)アクリレート系オリゴマーC3を得て、またウレタン(メタ)アクリレート系オリゴマーC3の溶液である活性エネルギー線硬化性重合体組成物C3を作製した。
イソホロンジイソシアネート119gを195gとし、実験例1-1のポリカーボネートジオール519gをポリカーボネートジオール(ETERNACOL UM-90(1/1)、数平均分子量920、宇部興産社製)404gとし、プレポリマー生成反応前に添加するメチルエチルケトン273gを256g、プレポリマー生成反応後に添加するメチルエチルケトン27gを44gとし、ヒドロキシエチルアクリレート62gを102gと変更した以外は、実験例1-3と同様にしてウレタン(メタ)アクリレート系オリゴマーC4を得て、またウレタン(メタ)アクリレート系オリゴマーC4の溶液である活性エネルギー線硬化性重合体組成物C4を作製した。
表5に、前記実験例1-1、2-1、3-1及び前記実験例4-1にて得られたポリカーボネートジオール生成物の物性と、前記実験例1-2、2-2、3-2、及び前記実験例4-2にてこれらのポリカーボネートジオール生成物を用いて得たポリウレタンフィルムの物性を整理して示す。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール(16HD):404.3g、イソソルビド(ISB):500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:0.87mL(濃度:8.4g/L、酢酸マグネシウム4水和物:7.3mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を4.67kPaまで下げ、130℃、4.67kPaで20分間反応した。そして、260分かけて圧力を0.40kPaまで下げた後、80分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は805.0gであった。また、含有されるマグネシウムの量は1.06重量ppmであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:4.4mL(濃度:8.4g/L、酢酸マグネシウム4水和物:37mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を5.33kPaまで下げ、130℃、5.33kPaで180分間、フェノールを留出させ除きながら反応した。そして、100分間かけて圧力を0.40kPaまで下げた後、100分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は967.8gであった。また、含有されるマグネシウムの量は4.29重量ppmであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:8.7mL(濃度:8.4g/L、酢酸マグネシウム4水和物:73mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を5.33kPaまで下げ、130℃、5.33kPaで180分間、フェノールを留出させ除きながら反応した。そして、120分間かけて圧力を0.40kPaまで下げた後、70分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は970.0gであった。また、含有されるマグネシウムの量は9.35重量ppmであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:17.5mL(濃度:8.4g/L、酢酸マグネシウム4水和物:147mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を5.33kPaまで下げ、130℃、5.33kPaで150分間、フェノールを留出させ除きながら反応した。そして、110分間かけて圧力を0.40kPaまで下げた後、60分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は972.5gであった。また、含有されるマグネシウムの量は17.5重量ppmであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:8.7mL(濃度:50.4g/L、酢酸マグネシウム4水和物:440mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を6.67kPaまで下げ、130℃、6.67kPaで150分間、フェノールを留出させ除きながら反応した。そして、210分間かけて圧力を0.40kPaまで下げた後、100分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は987.0gであった。また、含有されるマグネシウムの量は65.9重量ppmであった。なお、得られたポリカーボネートジオール生成物の性状は常温では透明固体であり、白色のMg塩凝集体を含んでいた。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:8.7mL(濃度:100.8g/L、酢酸マグネシウム4水和物:877mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を6.67kPaまで下げ、130℃、6.67kPaで150分間、フェノールを留出させ除きながら反応した。そして、180分間かけて圧力を0.40kPaまで下げた後、100分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は986.9gであった。また、含有されるマグネシウムの量は113重量ppmであった。なお、得られたポリカーボネートジオール生成物の性状は常温では透明固体であり、白色のMg塩凝集体を含んでいた。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸カルシウム水溶液:7.2mL(濃度:8.4g/L、酢酸カルシウム:61mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を4.67kPaまで下げ、130℃、4.67kPaで140分間、フェノールを留出させ除きながら反応した。そして、80分間かけて圧力を0.40kPaまで下げた後、120分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は926.4gであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸バリウム水溶液:10.4mL(濃度:8.4g/L、酢酸バリウム:87mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を5.33kPaまで下げ、130℃、5.33kPaで180分間、フェノールを留出させ除きながら反応した。そして、100分間かけて圧力を0.40kPaまで下げた後、80分間かけて温度を160℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は964.8gであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸ナトリウム:3.3mL(濃度:8.4g/L、酢酸ナトリウム:28mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を5.33kPaまで下げ、130℃、5.33kPaで280分間、フェノールを留出させ除きながら反応した。そして、240分間かけて圧力を0.40kPaまで下げた後、60分間かけて温度を160℃まで上げ、さらに160℃、0.40kPaにて30分間、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は957.0gであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:8.7mL(濃度:336.0g/L、酢酸マグネシウム4水和物:2,923mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を6.67kPaまで下げ、130℃、5.33~8.00kPaで190分間、フェノールを留出させ除きながら反応した。そして、100分間かけて圧力を0.40kPaまで下げた後、60分間かけて温度を150℃まで上げつつ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は990.0gであった。また、含有されるマグネシウムの量は315重量ppmであった。なお、得られたポリカーボネートジオール生成物の性状は常温では透明固体であり、白色のMg塩凝集体を含んでいた。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:0.051mL(濃度:8.4g/L、酢酸マグネシウム4水和物:0.4mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を6.67kPaまで下げ、130℃、6.67kPaで100分間反応した。そして、30分間かけて圧力を2.67kPaまで下げた後、340分間130℃、2.67kPaで反応させた。留出物は約5mLであり、系中にはほとんどフェノールの生成が確認されなかったため反応を中断した。反応終了後の混合物は加えた原料と重量変化が殆どないことから、含まれるMg量は0.07ppmと考えられる(理論値)。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸マグネシウム4水和物水溶液:8.7mL(濃度:8.4g/L、酢酸マグネシウム4水和物:73mg)を入れ、窒素ガス置換した。まず、内温130℃まで昇温して内容物を加熱溶解させた。昇温・溶解したら5分間で圧力を6.67kPaまで下げ、130℃、5.33~6.67kPaで240分間、フェノールを留出させ除きながら反応した。そして、140分間かけて圧力を0.40kPaまで下げた後、60分間かけて温度を180℃まで上げ、さらに180℃、0.40kPaにて280分間、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物は常温で透明固体であり、収量は906.4gであった。また、含有されるマグネシウムの量は9.43重量ppmであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸亜鉛:62.8mgを入れ、窒素ガス置換した。内温130℃まで昇温して内容物を加熱溶解させた。溶解後、5分間で圧力を6.67kPaまで下げ、130℃、6.67kPaで210分間、フェノールを留出させ除きながら反応した。次に、390分間かけて圧力を0.40kPaまで下げた後、90分間かけて温度を160℃まで上げ、さらに160℃、0.40kPaにて50分間、フェノールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は943.4gであった。
攪拌機、留出液トラップ、及び圧力調整装置を備えた5Lガラス製セパラブルフラスコに1,6-ヘキサンジオール:404.3g、イソソルビド:500.1g、ジフェニルカーボネート:1095.6g、酢酸亜鉛:345mgを入れ、窒素ガス置換した。内温130℃まで昇温して内容物を加熱溶解させた。溶解後、5分間で圧力を6.67kPaまで下げ、130~140℃、6.67kPaで330分間、フェノールを留出させ除きながら反応した。次に、圧力4.67~8.67kPaで210分間かけて温度を165℃まで上げ、フェノールを留出させ除きながら反応した。その後、圧力を30分間で0.40kPaまで下げながら、120分間かけて温度を190℃まで上げ、フェノール及び未反応のジオールを留出させ除きながら反応した。得られたポリカーボネートジオール生成物の収量は922.2gであった。
あらかじめ融点以上(例えば150℃)に加温した実験例5-1で製造した薄膜蒸留後のポリカーボネートジオール95.6gをセパラブルフラスコに入れ、50℃設定のオイルバスにそのフラスコを浸して加温しつつ、DMFを134g加えて溶解させた。100rpmで攪拌を行いながらMDIを14.0g添加した。その後、粘度増加による攪拌トルクの電圧値の変化を読み取り、内容物の様子を観察した。
この場合は重合が非常に遅く、1時間経過後でもトルクは0.2Vであった。さらに4時間経過後でも僅かずつ増粘は進行しているものの、そのトルクは約0.7Vであった。
あらかじめ融点以上(例えば100℃)に加温した実験例7-1で製造した薄膜蒸留後のポリカーボネートジオール85.0gをセパラブルフラスコに入れ、50℃設定のオイルバスにそのフラスコを浸して加温しつつ、DMFを131g加えて溶解させた。100rpmで攪拌を行いながらMDIを21.9g添加した。その後、粘度増加による攪拌トルクの電圧値の変化を読み取り、内容物の様子を観察した。
この場合の増粘速度は、トルク1.0Vを超えるまでの時間が約42分であり、扱いやすい範囲内であった。それ以降増粘は緩やかになり、トルク約1.7Vで増粘が止まった。
あらかじめ融点以上(例えば100℃)に加温した実験例9-1で製造した薄膜蒸留後のポリカーボネートジオール84.9gをセパラブルフラスコに入れ、50℃設定のオイルバスにそのフラスコを浸して加温しつつ、DMFを131g加えて溶解させた。100rpmで攪拌を行いながらMDIを22.1g添加した。その後、粘度増加による攪拌トルクの電圧値の変化を読み取り、内容物の様子を観察した。
この場合の増粘速度は、トルク1.0Vを超えるまでの時間が約14分であり、扱いやすい範囲内であった。それ以降増粘は緩やかになり、トルク約1.8Vで増粘が止まった。
あらかじめ融点以上(例えば100℃)に加温した実験例10-1で製造した薄膜蒸留後のポリカーボネートジオール85.0gをセパラブルフラスコに入れ、50℃設定のオイルバスにそのフラスコを浸して加温しつつ、DMFを129g加えて溶解させた。100rpmで攪拌を行いながらMDIを20.9g添加した。その後、粘度増加による攪拌トルクの電圧値の変化を読み取り、内容物の様子を観察した。
この場合にはMDIの添加直後にゲルの形成が多少認められたものの、全体としては取扱いやすい重合液となった。増粘速度は、トルク0.7Vを超えるまでの時間が約10分間であり、扱いやすい範囲内であった。
ただ、ゲルの形成で溶液が不均質となり一部低粘度の部分が生じたため、トルクとしては1.0Vを超えた値にはならなかった。
あらかじめ融点以上(例えば100℃)に加温した参考実験例6-1で製造した薄膜蒸留後のポリカーボネートジオール85.0gをセパラブルフラスコに入れ、50℃設定のオイルバスにそのフラスコを浸して加温しつつ、DMFを132g加えて溶解させた。100rpmで攪拌を行いながらMDIを22.8g添加した。(実際は溶質50%で実験。結果不変予想で45%へ溶媒量108gから変更済)
この場合にはMDIの添加直後にゲルの形成が多量認められ、ほぼ全量が攪拌羽根に絡まって団子状態となった。したがって、増粘速度を測定することが不可能であった。
あらかじめ融点以上(例えば100℃)に加温した参考実験例8-1で製造した薄膜蒸留後のポリカーボネートジオール85.0gをセパラブルフラスコに入れ、50℃設定のオイルバスにそのフラスコを浸して加温しつつ、DMFを129g加えて溶解させた。100rpmで攪拌を行いながらMDIを20.6g添加した。その後、粘度増加による攪拌トルクの電圧値の変化を読み取り、内容物の様子を観察した。
この場合の増粘速度は、トルク1.0Vを超えるまでの時間が約16分間であり、しかも約19分間経過後には2.7Vになり、さらに急上昇し測定不能となった。
あらかじめ融点以上(例えば100℃)に加温した比較例10-1で製造した薄膜蒸留後のポリカーボネートジオール65.0gをセパラブルフラスコに入れ、50℃設定のオイルバスにそのフラスコを浸して加温しつつ、DMFを146g加えて溶解させた。100rpmで攪拌を行いながらMDIを13.7g添加した。その後、粘度増加による攪拌トルクの電圧値の変化を読み取り、内容物の様子を観察した(これは溶質35%の条件)。
この場合の増粘速度は、トルク1.0Vを超えるまでの時間が約32分間であり、扱いやすい範囲内であった。それ以降増粘は緩やかになり、トルク約1.7Vで増粘が止まった。
表6及び7に、前記実験例5-1~前記実験例13-1、前記参考実験例6-1、前記参考実験例7-1、前記参考実験例9-1、及び前記参考実験例10-1の、ポリカーボネートジオール製造時に使用した原料ジオールの使用量、触媒の種類・触媒の使用量・収率・反応時間、ポリカーボネートジオール生成物中に含有される触媒量、及び、触媒由来の金属塩凝集体の有無と、ポリカーボネートジオール生成物を用いたウレタン化反応速度試験の結果とを整理して示す。なお、表6及び7中、触媒の使用量は、ジオールの使用量に対する重量における濃度である。また表6中、「※」は理論値を意味する。また表6及び7中、含有触媒量における括弧内の数値は、薄膜蒸留前の数値を意味する。
表8に、前記実験例5-1、前記実験例7-1、前記実験例9-1、前記参考実験例8-1、及び前記参考実験例10-1の、ポリカーボネートジオール製造時に使用した原料ジオールの使用量、触媒の種類・触媒の使用量・収率・反応最大温度・反応時間と、ポリカーボネートジオール生成物の末端(A)率(I)と、ポリカーボネートジオール生成物を用いたウレタン化反応速度試験の結果を整理して示す。
表9に、前記実験例7-1及び前記参考実験例8-1の、ポリカーボネートジオール製造時に使用した原料ジオールの使用量・触媒の種類・触媒の使用量・収率・反応最大温度、反応時間と、ポリカーボネートジオール生成物の末端(A)率(I)と、ポリカーボネートジオール生成物を用いたウレタン化反応速度試験の結果を整理して示す。
Claims (44)
- (i)イソソルビド、イソマンニド、及びイソイディッドから選ばれる少なくとも1種のジオール、(ii)ヘテロ原子を含有していてもよい炭素数1~15のジオール、及び(iii)炭酸ジエステルを、エステル交換触媒存在下に反応させて得られるポリカーボネートジオールであって、
前記エステル交換触媒が、周期表1族金属を用いた化合物又は2族金属を用いた化合物であり、
前記ポリカーボネートジオールに含有される前記エステル交換触媒の量が、その金属の重量比として100ppm以下であるポリカーボネートジオール。 - ポリカーボネートジオールに含有される前記エステル交換触媒の量が、その金属の重量比として0.1ppm以上である請求項1に記載のポリカーボネートジオール。
- 前記エステル交換触媒が周期表2族金属を用いた化合物である請求項1又は2に記載のポリカーボネートジオール。
- 前記反応における最高温度が180℃未満である請求項1乃至4のいずれか1項に記載のポリカーボネートジオール。
- 前記数平均分子量が500以上5,000以下である、請求項6に記載のポリカーボネートジオール。
- (i)イソソルビド、イソマンニド、及びイソイディッドから選ばれる少なくとも1種のジオール、(ii)ヘテロ原子を含有していてもよい炭素数1~15のジオール、及び(iii)炭酸ジエステルを、エステル交換触媒存在下に反応させて得られる請求項6又は7に記載のポリカーボネートジオール。
- 前記エステル交換触媒が周期表1族金属を用いた化合物又は2族金属を用いた化合物である請求項8に記載のポリカーボネートジオール。
- 前記エステル交換触媒が周期表2族金属を用いた化合物である請求項9に記載のポリカーボネートジオール。
- 前記反応における最高温度が180℃未満である請求項8乃至10のいずれか1項に記載のポリカーボネートジオール。
- (i)イソソルビド、イソマンニド、及びイソイディッドから選ばれる少なくとも1種のジオール、(ii)ヘテロ原子を含有していてもよい炭素数1~15のジオール、及び(iii)炭酸ジエステルを、エステル交換触媒存在下に反応させてポリカーボネートジオールを製造するポリカーボネートジオールの製造方法であって、
前記反応における最高温度が180℃未満であるポリカーボネートジオールの製造方法。 - 前記エステル交換触媒が周期表1族金属を用いた化合物又は2族金属を用いた化合物である請求項12に記載のポリカーボネートジオールの製造方法。
- 前記エステル交換触媒が周期表2族金属を用いた化合物である請求項13に記載のポリカーボネートジオールの製造方法。
- 請求項12乃至14のいずれか1項に記載のポリカーボネートジオールの製造方法により得られるポリカーボネートジオール。
- 前記炭酸ジエステルがジフェニルカーボネートである請求項1乃至5、8乃至11及び15のいずれか1項に記載のポリカーボネートジオール。
- 炭酸ジエステルの含有量が1重量%以下である請求項1乃至5、8乃至11、15及び16のいずれか1項に記載のポリカーボネートジオール。
- 前記(i)のジオールに含まれるギ酸の量が20ppm以下である請求項1乃至5、8乃至11、及び15乃至17のいずれか1項に記載のポリカーボネートジオール。
- 分子鎖の末端がアルキルオキシ基又はアリールオキシ基である数の割合が、前記分子鎖の全末端数に対して5%以下である請求項1乃至5、8乃至11、及び15乃至18のいずれか1項に記載のポリカーボネートジオール。
- ハーゼン色数の値(APHA値:JIS K0071-1に準拠)が100以下である請求項1乃至11、及び15乃至19のいずれか1項に記載のポリカーボネートジオール。
- 分子量分布が1.5~3.5である請求項1乃至11、及び15乃至20のいずれか1項に記載のポリカーボネートジオール。
- 請求項1乃至11、及び15乃至21のいずれか1項に記載のポリカーボネートジオールを用いて得られるポリウレタン。
- 幅10mm、長さ100mm、厚み約50~100μmの短冊状のサンプルに対して、チャック間距離50mm、引張速度500mm/分にて、温度23℃、相対湿度55%で測定した引張破断伸度が400%以下である請求項22に記載のポリウレタン。
- 幅10mm、長さ100mm、厚み約50~100μmの短冊状のサンプルに対して、チャック間距離50mm、引張速度500mm/分にて、温度23℃、相対湿度55%で測定した100%モジュラスが10MPa以上である請求項22又は23に記載のポリウレタン。
- 厚み約50~100μmのフィルム状のサンプルについて、JIS L0849に準じて実施した荷重4.9Nでの摩擦試験(500回往復)において、重量減少率が2%以下である請求項22乃至24のいずれか1項に記載のポリウレタン。
- 請求項1乃至11、及び15乃至21のいずれか1項に記載のポリカーボネートジオールと、ポリイソシアネートとを反応させてプレポリマーとし、該プレポリマーと鎖延長剤とを反応させることを特徴とするポリウレタンの製造方法。
- 請求項1乃至11、及び15乃至21のいずれか1項に記載のポリカーボネートジオール、ポリイソシアネート、及び鎖延長剤を一括に混合した後、反応させることを特徴とするポリウレタンの製造方法。
- 請求項22乃至25のいずれか1項に記載のポリウレタンを用いて製造した塗料又はコーティング剤。
- 請求項22乃至25のいずれか1項に記載のポリウレタンを用いて製造した人工皮革又は合成皮革。
- 請求項22乃至25のいずれか1項に記載のポリウレタンを用いて製造した水系ポリウレタン塗料。
- 請求項22乃至25のいずれか1項に記載のポリウレタンを用いて製造した医療用材料。
- 請求項22乃至25のいずれか1項に記載のポリウレタンを用いて製造した接着剤。
- 請求項1乃至11、及び15乃至21のいずれか1項に記載のポリカーボネートジオール、ポリイソシアネート、及びヒドロキシアルキル(メタ)アクリレート、を含む原料の反応物であるウレタン(メタ)アクリレート系オリゴマーを含有する活性エネルギー線硬化性重合体組成物。
- 前記式(B)のXが炭素数6の二価の基であることを特徴とする、請求項35に記載の活性エネルギー線硬化性重合体組成物。
- ポリイソシアネート、ポリカーボネートジオール、及びヒドロキシアルキル(メタ)アクリレート、を含む原料の反応物であるウレタン(メタ)アクリレート系オリゴマーを含有する活性エネルギー線硬化性重合体組成物において、
前記ポリカーボネートジオールが、(i)イソソルビド、イソマンニド、及びイソイディッドから選ばれる少なくとも1種のジオール、(ii)ヘテロ原子を含有していてもよい炭素数1~15のジオール、及び(iii)炭酸ジエステルを、エステル交換触媒存在下に反応させて得られるポリカーボネートジオールであって、前記ポリカーボネートジオールの数平均分子量が500以上5,000以下、かつ1分子当りの平均水酸基数が2.2以下であることを特徴とする活性エネルギー線硬化性重合体組成物。 - 前記ポリカーボネートジオールの数平均分子量が3,000以下であることを特徴とする請求項34乃至37のいずれか1項
に記載の活性エネルギー線硬化性重合体組成物。 - 計算網目架橋点間分子量が500~10,000であることを特徴とする請求項34乃至38のいずれか1項に記載の活性エネルギー線硬化性重合体組成物。
- 前記原料が、前記ポリカーボネートジオールを除く数平均分子量500を超える高分子量ポリオールをさらに含むことを特徴とする請求項34乃至39のいずれか1項に記載の活性エネルギー線硬化性重合体組成物。
- 前記原料が、前記ポリカーボネートジオールを除く数平均分子量500以下の低分子量ポリオールをさらに含むことを特徴とする請求項34乃至40のいずれか1項に記載の活性エネルギー線硬化性重合体組成物。
- 前記ウレタン(メタ)アクリレート系オリゴマーは、末端にイソシアネート基を有するウレタンプレポリマーと前記ヒドロキシアルキル(メタ)アクリレートとをウレタン化反応させてなる構造を有し、
前記ウレタンプレポリマーは、前記ポリイソシアネートと前記ポリカーボネートジオールとをウレタン化反応させてなることを特徴とする請求項34乃至41のいずれか1項に記載の活性エネルギー線硬化性重合体組成物。 - 請求項34乃至42のいずれか1項に記載の活性エネルギー線硬化性重合体組成物に、活性エネルギー線を照射してなる硬化膜。
- 基材上に、請求項43に記載の硬化膜からなる層を有する積層体。
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JP2012072350A (ja) | 2012-04-12 |
JP5699770B2 (ja) | 2015-04-15 |
EP3459987B1 (en) | 2022-11-02 |
KR20130092383A (ko) | 2013-08-20 |
KR101840063B1 (ko) | 2018-04-26 |
ES2698840T3 (es) | 2019-02-06 |
US20130109804A1 (en) | 2013-05-02 |
TWI527840B (zh) | 2016-04-01 |
CN102844353A (zh) | 2012-12-26 |
US20240301114A1 (en) | 2024-09-12 |
CN102844353B (zh) | 2016-02-17 |
US10907012B2 (en) | 2021-02-02 |
EP2559718A4 (en) | 2015-12-02 |
CN105646817A (zh) | 2016-06-08 |
EP3459987A1 (en) | 2019-03-27 |
CN105646817B (zh) | 2019-08-13 |
EP2559718A1 (en) | 2013-02-20 |
ES2935824T3 (es) | 2023-03-10 |
US20210115191A1 (en) | 2021-04-22 |
EP2559718B1 (en) | 2018-09-05 |
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