WO2019093066A1 - 難燃剤組成物および該難燃剤組成物を含む難燃性熱可塑性樹脂組成物 - Google Patents
難燃剤組成物および該難燃剤組成物を含む難燃性熱可塑性樹脂組成物 Download PDFInfo
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- WO2019093066A1 WO2019093066A1 PCT/JP2018/037966 JP2018037966W WO2019093066A1 WO 2019093066 A1 WO2019093066 A1 WO 2019093066A1 JP 2018037966 W JP2018037966 W JP 2018037966W WO 2019093066 A1 WO2019093066 A1 WO 2019093066A1
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- triazine
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- 0 CCC(C1)C1C1C(C2)=C2*(C)C1 Chemical compound CCC(C1)C1C1C(C2)=C2*(C)C1 0.000 description 2
- AHBQFWLPMLTOJK-UHFFFAOYSA-N CC(C)(CO1)COP1(N)=O Chemical compound CC(C)(CO1)COP1(N)=O AHBQFWLPMLTOJK-UHFFFAOYSA-N 0.000 description 1
- RBXXOPZTMYBAIR-UHFFFAOYSA-N CC(C)(CO1)COP1(NC)=O Chemical compound CC(C)(CO1)COP1(NC)=O RBXXOPZTMYBAIR-UHFFFAOYSA-N 0.000 description 1
- LOPVPEDSHONQDS-UHFFFAOYSA-N O=P1(NCC[N]P2(OCCCO2)=O)OCCCO1 Chemical compound O=P1(NCC[N]P2(OCCCO2)=O)OCCCO1 LOPVPEDSHONQDS-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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- C08F10/06—Propene
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
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- C08K5/00—Use of organic ingredients
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- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34922—Melamine; Derivatives thereof
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34928—Salts
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5313—Phosphinic compounds, e.g. R2=P(:O)OR'
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C09K21/00—Fireproofing materials
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K21/10—Organic materials containing nitrogen
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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
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- C09K21/00—Fireproofing materials
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Definitions
- the present invention relates to a flame retardant thermoplastic resin composition containing a flame retardant composition and a flame retardant composition, and a non-halogen flame retardant thermoplastic resin composition excellent in flame retardancy and water resistance.
- the flame retardant composition and the flame retardant thermoplastic resin composition of the present invention can be used for molded articles such as automobile interior materials, packaging materials, electrical parts, sheets or films for construction materials, films for electric wires, and the like.
- Thermoplastic resins are easy to mold, have a small number of steps for molding, and are capable of recycling molded articles, such as automobile parts, housings for electric devices, electrical insulating materials, packaging films, building materials It is used in a wide variety of fields such as floor materials. And although most thermoplastic resins are flammable, it is often desirable to make molded articles of thermoplastic resin for applications where flame retardancy is required. Therefore, in order to impart flame retardancy to thermoplastic resins, halogen flame retardants, metal hydroxides such as aluminum hydroxide or magnesium hydroxide, red phosphorus which has been subjected to coating treatment, and polyphosphates such as ammonium polyphosphate. Flame retardants such as salts, aromatic organophosphates, triazine compounds such as melamine are used.
- the halogen-based flame retardant has a problem that smoke and harmful gas are generated when an article containing it is discarded and incinerated. Moreover, when using a metal hydroxide as a flame retardant, since the addition amount of a very large amount is required, it is easy to cause the physical-property fall of a thermoplastic resin.
- JP-A No. 2003-26935 discloses that a piperazine salt of poly (pyro) phosphoric acid and a combination of two kinds of phosphates such as melamine poly (pyro) phosphate lead to a polyolefin resin. It aims at imparting flame retardancy.
- JP 2011-148936A discloses a flame retardant resin composition using a combination of a polyphosphoric acid piperazine salt and melamine cyanurate.
- the resin composition containing these flame retardants is resistant to water It has a problem that it is difficult to use in an environment where the humidity is high or in contact with water. For that reason, surface coatings or microencapsulation of water-soluble polyphosphates are described, but it is still difficult to say that the water resistance is sufficient, and it is also possible to use surface coatings or microencapsulation.
- the cost for producing the article is high because of processing costs.
- US Patent Application Publication No. 2003/0109608 discloses phosphoramidates having a piperazine skeleton, but does not disclose the problem of water resistance reduction in a thermoplastic resin composition containing a flame retardant. Moreover, this document only specifically describes imparting flame retardancy to a polyester resin, and the flame retardancy effect is high enough to impart flame retardancy to a polyolefin resin for which it is difficult to impart flame retardancy. No confirmation has been made about.
- JP-A 2003-226818 discloses that a flame retardant is imparted to a resin by using in combination a flame retardant such as a double salt of an amino group-containing nitrogen compound and polyphosphoric acid and a flame retardant aid such as a phosphorus-containing compound.
- a flame retardant such as a double salt of an amino group-containing nitrogen compound and polyphosphoric acid
- a flame retardant aid such as a phosphorus-containing compound.
- thermoplastic resin composition having a high flame retardant effect and excellent water resistance and a non-halogen flame retardant used for the thermoplastic resin composition have been desired.
- the present inventors have achieved a flame retardant effect by using a phosphoric acid ester amide compound having a specific structure in combination with a nitrogen-containing compound, and is a non-halogen having excellent water resistance. It came to be able to provide a flame retardant composition of the system and a flame retardant thermoplastic resin composition using the same.
- a phosphoric acid ester amide compound represented by the general formula (I) as the component (A) and a 1,3,5-triazine structure or a 1,3,5-triazine fused ring as the component (B) The flame retardant composition obtained by using together with the nitrogen-containing compound which has a structure is provided, and the said subject was solved by that.
- thermoplastic resin of the component (D) a phosphoric acid ester amide compound represented by the general formula (I) as the component (A) and a 1,3,5-triazine structure or 1,3 as the component (B)
- a nitrogen-containing compound having a 5, 5-triazine fused ring structure, and optionally adding a metal oxide or metal salt as component (C), and, if necessary, an antidripping agent as component (E) The present invention provides a flame-retardant thermoplastic resin composition obtained by compounding, thereby solving the above-mentioned problems.
- a flame retardant composition comprising component (A) and component (B),
- the component (A) has the following general formula (I):
- R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms
- R 11 , R 12 , R 13 and R 14 each independently represent R 15 is an alkylene group having 1 to 3 carbon atoms
- R 15 is an alkylene group having 1 to 6 carbon atoms
- R 5 and R 6 are each independently a hydrogen atom or an alkyl group having 1 to 6 carbon atoms
- the component (B) is a nitrogen-containing compound having a 1,3,5-triazine structure or a 1,3,5-triazine fused ring structure. Flame retardant composition.
- the nitrogen-containing compound of the component (B) is a phosphate, pyrophosphate or polyphosphate of an amine compound having a 1,3,5-triazine structure or a 1,3,5-triazine fused ring structure.
- (Section 7) The flame retardant composition according to item 6, wherein the nitrogen-containing compound of the component (B) is a polyphosphate of an amine compound having a 1,3,5-triazine structure or a 1,3,5-triazine fused ring structure. object. (Section 8) 7. The flame retardant composition according to item 6, wherein the nitrogen-containing compound of the component (B) is a pyrophosphate of an amine compound having a 1,3,5-triazine structure or a 1,3,5-triazine fused ring structure. object. (Section 9) 7.
- a flame retardant thermoplastic resin composition comprising the flame retardant composition according to any one of the above 1 to 13 and a component (D) thermoplastic resin.
- the total amount of the component (A) and the component (B) is 10 parts by mass to 50 parts by mass with respect to 100 parts by mass of the total amount of the components (A) to (D) Flame retardant thermoplastic resin composition.
- thermoplastic resin composition according to any one of items 14 to 17, wherein the thermoplastic resin of the component (D) is a polyolefin resin.
- a flame retardant composition having a high flame retardancy effect and excellent water resistance a flame retardant thermoplastic resin composition using the same, and a molded article thereof are provided.
- the flame retardant composition of the present invention comprises a phosphoric acid ester amide compound (component (A)) and a compound having a 1,3,5-triazine structure or a 1,3,5-triazine fused ring structure (component (B)) Including.
- Component (A)> The phosphoric acid ester amide compound of component (A) has a general formula (I):
- R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, preferably a hydrogen atom or an alkyl group having 1 to 2 carbon atoms. And more preferably a hydrogen atom or a methyl group.
- R 11 , R 12 , R 13 and R 14 are each independently an alkylene group having 1 to 3 carbon atoms, preferably an alkylene group having 1 to 2 carbon atoms, and more preferably a methylene group .
- R 15 is an alkylene group having 1 to 6 carbon atoms, preferably an alkylene group having 1 to 4 carbon atoms, more preferably an alkylene group having 1 to 3 carbon atoms, and still more preferably It is an alkylene group of 1 to 2 and particularly preferably an ethylene group.
- R 5 and R 6 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and more preferably a hydrogen atom or methyl And more preferably a hydrogen atom.
- an alkyl group means a monovalent substituent obtained by removing one hydrogen atom from an alkane.
- the alkylene group means a divalent substituent obtained by removing two hydrogen atoms from an alkane.
- alkyl group in R 1 , R 2 , R 3 and R 4 include a methyl group, an ethyl group, an n-propyl group and an isopropyl group.
- a methyl group and an ethyl group are preferable, and a methyl group is particularly preferable in terms of flame retardancy.
- alkylene group in R 11 , R 12 , R 13 and R 14 include methylene group, ethylene group, n-propylene group and 1,2-propylene group.
- a methylene group and an ethylene group are preferable, and a methylene group is particularly preferable in terms of stability and flame retardancy.
- alkyl group in R 5 and R 6 examples include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, tert-butyl group, n-pentyl group and n-hexyl group Etc.
- a methyl group and an ethyl group are preferable, and a methyl group is particularly preferable in terms of flame retardancy.
- alkylene group for R 15 examples include methylene, ethylene, n-propylene and 1,2-propylene, n-butylene, 1,1-dimethylethylene, n-pentylene and n-hexylene And the like.
- methylene, ethylene, n-propylene, 1,2-propylene, n-butylene and 1,1-dimethylethylene are preferable, and methylene and ethylene are preferred from the viewpoint of flame retardancy. More preferred is ethylene, with ethylene being particularly preferred.
- Specific examples of the compound represented by the general formula (I) include compounds of the following formulas (1) to (11).
- R 1 , R 2, R 3 and R 4 each represent a hydrogen atom or a methyl group from the viewpoint of availability of raw materials and flame retardancy It is preferable that it is a methyl group.
- R 11, R 12, R 13 and R 14 of general formula (I) is a methylene group.
- R 15 in the general formula (I) preferably has 1 to 4 carbon atoms, and more preferably 1 or 2 carbon atoms.
- R 5 and R 6 in the general formula (I) are particularly preferably a hydrogen atom from the viewpoint of flame retardancy.
- the compounds of the formulas (1) to (5) are preferable, and the compound of the formula (4) is particularly preferable.
- These phosphoric ester amide compounds not only have good flame retardancy, but thermoplastic resin compositions containing them are also excellent in water resistance. Therefore, it is possible to maintain physical properties without causing a decrease in flame retardance even under a high temperature and high humidity environment.
- These phosphoric acid ester amide compounds may be used alone or in combination of two or more.
- the method for synthesizing the phosphoric acid ester amide compound represented by the general formula (I) is not particularly limited.
- the known synthesis method of the phosphoric acid ester amide compound represented by the general formula (I) may be synthesized as it is.
- the known synthesis method may be appropriately modified. Accordingly, the phosphoric acid ester amide compound represented by the general formula (I) can be synthesized by applying various reactions known for the synthesis of phosphoric acid ester amide compounds.
- R 1 , R 2 , R 11 and R 12 are as defined in the general formula (I), and X represents a halogen atom such as Br and Cl] and the corresponding compounds
- X represents a halogen atom such as Br and Cl
- R 3 , R 4 , R 13 and R 14 are as defined in the general formula (I), and X represents a halogen atom such as Br, Cl, etc.
- the compound of the formula (VIa) is, for example, phosphorus oxyhalide (eg, phosphorus oxychloride or phosphorus oxybromide) with the following formula (VIIa):
- the compounds of formula (VIb) can also be obtained by the same method. That is, phosphorus oxyhalide (for example, phosphorus oxychloride or phosphorus oxybromide) and the following formula (VIIb):
- the reaction of the phosphorus oxyhalide with the diol can be carried out in an organic solvent, if necessary.
- organic solvent those having no reaction activity with the raw material phosphorus oxyhalide and diol can be used, and, for example, toluene, xylene, chlorobenzene, dichlorobenzene, 1,4-dioxane and the like can be used.
- the phosphoric acid ester amide compound is a compound represented by the general formula (I) and the two phosphorus-containing rings have the same structure (that is, R 1 , R 2 , R 11 , R 12 and R 3 , In the case where R 4 , R 13 and R 14 are the same), a compound of the general formula (VIa) corresponding to the structure of the phosphorus-containing ring, and the -N (R 5 ) -R 15 -N (R 6)
- the reaction may be carried out at a ratio of 2: 1 (molar ratio) with a diamine (eg, ethylene diamine) corresponding to the structure of the moiety ⁇ ).
- the phosphoric acid ester amide compound is a compound represented by the general formula (I) and the two phosphorus-containing rings have different structures
- the reaction should be The reaction may be carried out in one step by reacting three types of compounds, or after the reaction of the compound of the general formula (VIa) with a diamine, the reaction with the compound of the general formula (VIb) may be performed.
- the phosphoric acid ester amide compound of component (A) is preferably 50 ⁇ m or less, and more preferably 20 ⁇ m or less.
- the lower limit of the average particle size is not particularly limited, for example, those having an average particle size of 0.1 ⁇ m or more or 1 ⁇ m or more can be used.
- the production cost of the particles may be high.
- the method of measuring the particle size is not particularly limited, for example, a laser diffraction type particle size distribution measuring apparatus (SALD (registered trademark) -2300 manufactured by Shimadzu Corporation) can be used.
- SALD laser diffraction type particle size distribution measuring apparatus
- Component (B) is a nitrogen-containing compound having a 1,3,5-triazine structure or a 1,3,5-triazine fused ring structure.
- the 1,3,5-triazine structure is a 6-membered ring structure composed of 3 carbon atoms and 3 nitrogen atoms.
- a 1,3,5-triazine fused ring means a fused ring formed by fusing a plurality of 1,3,5-triazine rings.
- a 1,3,5-triazine fused ring structure means a structure of a fused ring formed by fusing a plurality of 1,3,5-triazine rings.
- the compound of component (B) may be a compound having one 1,3,5-triazine structure, or may be a compound having a plurality of 1,3,5-triazine structures.
- the compound having one 1,3,5-triazine structure is a compound represented by the following formula (B1).
- R 21 , R 22 and R 23 each independently represent a hydrogen atom or any monovalent substituent.
- at least one of R 21 , R 22 and R 23 is other than a hydrogen atom.
- at least one of R 21 , R 22 and R 23 is an amino group or a substituted amino group.
- R 21 , R 22 and R 23 are each independently an amino group or a substituted amino group.
- R 21 , R 22 and R 23 are all amino groups.
- the above optional monovalent substituent is preferably an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkyl group having 1 to 12 carbon atoms having a carbon-carbon unsaturated bond, or the carbon number It is an alkylcarbonyl group of 1 to 12, a hydroxy group, an alkoxy group having 1 to 12 carbon atoms, or a mercapto group.
- the substituted amino group represents an amino group in which at least one of the hydrogen atoms bonded to the nitrogen atom in the amino group is substituted with any monovalent substituent.
- it is substituted by an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkyl group having an unsaturated carbon-carbon bond having 1 to 12 carbon atoms, or an alkyl carbonyl group having 1 to 12 carbon atoms Substituted amino group.
- an amine compound having a 1,3,5-triazine structure refers to a compound having a 1,3,5-triazine ring structure and an amino group.
- Examples of the amine compound having a 1,3,5-triazine structure are, for example, compounds in which at least one of R 21 , R 22 and R 23 in the formula (B1) is an amino group or a substituted amino group, Alternatively, it may be a compound in which at least one of R 21 , R 22 and R 23 contains an amino group or a substituted amino group. For example, it may be a compound in which at least one of R 21 , R 22 and R 23 is an aminoalkyl group. Preferably, R 21 , R 22 and R 23 are each independently an amino group or a substituted amino group. More preferably, R 21 , R 22 and R 23 are all amino groups.
- the compound having the structure of the above formula (B1) may be a salt.
- a salt of melamine can be used.
- an acid addition salt in which an acidic compound is added to basic nitrogen in the compound, etc. for example, melamine phosphate or melamine pyrophosphate (salt of pyrophosphate: melamine at a molar ratio of 1: 1)
- the acid addition salt a phosphate or pyrophosphate (a salt in which the molar ratio of pyrophosphoric acid: a compound having a basic nitrogen is 1: 1) is preferable.
- preferred salts are phosphates or pyrophosphates of the compounds of the above formula (B1). More preferably, it is a phosphate or pyrophosphate of melamine.
- one, two or three of R 21 , R 22 and R 23 of the amine compound having a 1,3,5-triazine ring structure of the above formula (B1) are an amino group And at least one of the amino groups forms a salt with an acidic compound (eg, a compound having a phosphoric acid group). From the viewpoint that the amino group forms a salt with the acidic compound, melamine phosphate and pyrophosphate are preferred.
- phosphate refers to a salt of phosphoric acid and the nitrogen-containing compound of component (B), and the molar ratio of phosphoric acid: nitrogen-containing compound is not particularly limited. That is, it may be a salt in which only one molecule of nitrogen-containing compound is bound to one molecule of phosphoric acid, or a salt in which a plurality of nitrogen-containing compound molecules are bound to one molecule of phosphoric acid. In addition, it may be a salt in which only one molecule of nitrogen-containing compound is bound to a plurality of phosphoric acid molecules.
- the molar ratio of phosphoric acid: nitrogen-containing compound is 1: 1.
- melamine phosphate refers to a salt of phosphoric acid and melamine
- the molar ratio of phosphoric acid: melamine is not particularly limited. That is, it may be a salt in which only one molecule of melamine is bonded to one molecule of phosphoric acid, or a salt in which plural melamine molecules are bonded to one molecule of phosphoric acid. In addition, it may be a salt in which only one molecule of melamine is bound to a plurality of phosphoric acid molecules.
- the molar ratio of phosphoric acid: melamine is 1: 1.
- pyrophosphate refers to a salt of pyrophosphoric acid and a nitrogen-containing compound of component (B), and the molar ratio of pyrophosphoric acid: nitrogen-containing compound is not particularly limited. That is, it may be a salt in which only one nitrogen-containing compound is bound to one pyrophosphoric acid molecule, or a salt in which a plurality of nitrogen-containing compound molecules are bound to one pyrophosphoric acid molecule.
- the molar ratio of pyrophosphate to nitrogen-containing compound is 1: 1 or 1: 2.
- melamine pyrophosphate refers to a salt of pyrophosphoric acid and melamine
- the molar ratio of pyrophosphoric acid: melamine is not particularly limited. That is, it may be a salt in which only one molecule of melamine is bound to one molecule of pyrophosphate, or a salt in which plural melamine molecules are bound to one molecule of pyrophosphate.
- the molar ratio of pyrophosphoric acid: melamine is 1: 1 or 1: 2.
- the polyphosphate refers to a salt of polyphosphoric acid and the nitrogen-containing compound of component (B), and the molar ratio of polyphosphoric acid: nitrogen-containing compound is not particularly limited.
- melamine polyphosphate refers to a salt of polyphosphoric acid and melamine, and the molar ratio of polyphosphoric acid: melamine is not particularly limited. That is, it may be a salt in which only one molecule of melamine is bonded to one molecule of polyphosphoric acid, or a salt in which plural melamine molecules are bonded to one molecule of polyphosphoric acid.
- the compound having a plurality of 1,3,5-triazine structures may be a compound in which at least one of R 21 to R 23 in the above formula (B1) has a 1,3,5-triazine structure. That is, a compound having a structure in which a plurality of 1,3,5-triazine structures are connected (for example, melam) can be obtained.
- the compound having a plurality of 1,3,5-triazine structures may be a compound having a structure in which a plurality of 1,3,5-triazine structures are bonded to at least one skeleton structure. That is, a compound having a structure in which a plurality of 1,3,5-triazine structures are bonded to the main chain (for example, melamine pyrophosphate (salt of pyrophosphate: melamine at a molar ratio of 1: 2), melamine polyphosphate) You can also.
- the 1,3,5-triazine fused ring is formed, for example, by deammonia condensation of melamine.
- Examples of the compound having a 1,3,5-triazine fused ring structure include, for example, a compound represented by the following formula (B2).
- R 24 , R 25 and R 26 may independently be a hydrogen atom or any monovalent substituent.
- at least one of R 24 , R 25 and R 26 is other than a hydrogen atom.
- at least one of R 24 , R 25 and R 26 is an amino group or a substituted amino group.
- R 24 , R 25 and R 26 are each independently an amino group or a substituted amino group.
- R 24 , R 25 and R 26 are all amino groups.
- the above-mentioned optional monovalent substituent is preferably an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkyl group having an unsaturated carbon-carbon bond having 1 to 12 carbon atoms, the carbon number It is an alkylcarbonyl group of 1 to 12, a hydroxy group, an alkoxy group having 1 to 12 carbon atoms, or a mercapto group.
- the substituted amino group represents an amino group in which at least one of the hydrogen atoms bonded to the nitrogen atom in the amino group is substituted with any monovalent substituent.
- it is substituted by an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkyl group having an unsaturated carbon-carbon bond having 1 to 12 carbon atoms, or an alkyl carbonyl group having 1 to 12 carbon atoms Substituted amino group.
- an amine compound having a 1,3,5-triazine fused ring structure refers to a compound having a 1,3,5-triazine fused ring structure and an amino group.
- an amine compound having a 1,3,5-triazine fused ring structure for example, a compound in which at least one of R 24 , R 25 and R 26 in the formula (B2) is an amino group or a substituted amino group Or a compound in which at least one of R 24 , R 25 and R 26 contains an amino group or a substituted amino group.
- it may be a compound in which at least one of R 24 , R 25 and R 26 is an aminoalkyl group.
- R 24 , R 25 and R 26 are each independently an amino group or a substituted amino group. More preferably, R 24 , R 25 and R 26 are all amino groups.
- the compound having the structure of the above formula (B2) may be a salt.
- salts of compounds having a structure in which plural melamine molecules are condensed can be used.
- salts include, for example, acid addition salts in which an acidic compound is added to basic nitrogen in the compound (for example, merem phosphate or merem pyrophosphate).
- acid addition salt phosphate or pyrophosphate is preferable.
- preferred salts are phosphates or pyrophosphates of the compounds of the above formula (B2). More preferably, it is a phosphate or pyrophosphate of a compound having a structure in which a plurality of melamine molecules are condensed.
- one, two or three of R 24 , R 25 and R 26 of an amine compound having a 1,3,5-triazine fused ring structure of the above formula (B2) have an amino group And at least one of the amino groups is forming a salt with an acidic compound (eg, a compound having a phosphoric acid group).
- an acidic compound eg, a compound having a phosphoric acid group.
- the amino group forms a salt with the acidic compound, the phosphate and pyrophosphate of a compound having a structure in which plural melamine molecules are condensed is preferable.
- the compound having a plurality of 1,3,5-triazine fused ring structures is a compound in which at least one of R 24 to R 26 in the above formula (B2) has a 1,3,5-triazine fused ring structure. May be That is, a compound having a structure in which a plurality of 1,3,5-triazine fused ring structures are connected (for example, a melon) can be obtained.
- a compound having a plurality of 1,3,5-triazine fused ring structures is a compound having a structure in which a plurality of 1,3,5-triazine fused ring structures are bonded to at least one skeleton structure, It is also good. That is, it can also be a compound having a structure in which a plurality of 1,3,5-triazine fused ring structures are bonded to the main chain (for example, mere pyrophosphate or mele polyphosphate).
- the compound having a 1,3,5-triazine fused ring structure is a compound having at least one of R 24 to R 26 having a 1,3,5-triazine structure in the above formula (B2). Good. That is, a compound having a structure in which a plurality of 1,3,5-triazine structures and a plurality of 1,3,5-triazine fused ring structures are connected can be obtained.
- compounds having a plurality of 1,3,5-triazine structures and a plurality of 1,3,5-triazine fused ring structures have a plurality of 1,3,5-triazine ring structures and at least one skeleton structure and It may be a compound having a structure in which a plurality of 1,3,5-triazine fused ring structures are bonded. That is, a structure in which a plurality of 1,3,5-triazine ring structures and a plurality of 1,3,5-triazine fused ring structures are bonded to a main chain can also be employed.
- the nitrogen-containing compound of component (B) has a polymer main chain, and a structure in which a 1,3,5-triazine ring or a 1,3,5-triazine fused ring is bound to the polymer Have.
- a compound is represented, for example, by the following formula (B3): [Y-Z] n -Q (B3)
- Q is a polymer.
- Q has a binding group, preferably an acidic group as the binding group.
- the molecular weight of the polymer is preferably 150 or more, more preferably 200 or more, still more preferably 500 or more, still more preferably 1000 or more, and even more preferably 2000 or more.
- the molecular weight of the polymer is preferably 1,000,000 or less, more preferably 100,000 or less, still more preferably 20,000 or less, still more preferably 10,000 or less, still more preferably 5,000 or less. It is below.
- the polymer Q in the formula (B3) is represented, for example, by the following formula (B3A): Q a- (Q b ) m- Q c (B3A)
- Q a and Q c represent terminal groups.
- Q b is a repeating unit having a binding group.
- m represents the number of bonding groups contained in Q.
- an acidic group is mentioned, for example.
- the binding group is preferably an acidic -OH group in an oxygen acid containing a sulfur atom, a nitrogen atom or a phosphorus atom. More preferably, the binding group is an OH group in phosphoric acid.
- m is an integer of 2 or more. In one embodiment, m is 2.
- m is 3 or more, in another embodiment 4 or more, and in yet another embodiment 5 or more. m is preferably 10000 or less, more preferably 1000 or less.
- the binding group forms a bond with Z of formula (B3).
- the polymer Q in formula (B3) is, for example, represented by the following formula (B3B): Q a- (Q b ) ma- Q c (B3B) Definition in the formula (B3B), Q a, Q b and Q c are as defined for Q a, Q b and Q c in the formula (B3A).
- m a is an integer of 3 or more.
- ma is an integer of 4 or more.
- m a is an integer of 5 or more.
- the polymer Q is preferably a compound represented by the following formula (B4).
- M in the formula (B4) is an integer of 2 or more, as m in the formula (B3A). In one embodiment, m is 2. In another embodiment, m is 3 or more, in another embodiment 4 or more, and in yet another embodiment 5 or more.
- the molecular weight of the formula (B4) is preferably 200 or more, more preferably 500 or more, still more preferably 1000 or more, and still more preferably 2000 or more.
- the molecular weight of Formula (B4) is preferably 1,000,000 or less, more preferably 100,000 or less, still more preferably 20,000 or less, still more preferably 10,000 or less, still more preferably Is less than 5000.
- Y is a partial structure including a 1,3,5-triazine structure or a 1,3,5-triazine fused ring structure
- Z is a 1,3,5-triazine structure or 1,3,5.
- a moiety connecting a triazine fused ring structure to the polymer Q preferably a residue after the amino group is bound to the acid group of the polymer.
- N is any positive integer.
- n is one.
- n is preferably 2 or more, more preferably 3 or more, still more preferably 5 or more, still more preferably 10 or more, still more preferably 20 or more. It is above.
- n is preferably 10000 or less, more preferably 1000 or less, still more preferably 250 or less, still more preferably 120 or less, still more preferably 70 or less.
- the ratio n / m of m (the number of bonding groups) and n (the number of 1,3,5-triazine structures or 1,3,5-triazine fused ring structures) is not particularly limited, but the formability and handling From the viewpoint of easiness, in one embodiment it is 0.1 or more, in another embodiment 0.3 or more, preferably 0.5 or more, more preferably 0.7 or more. More preferably, it is 0.8 or more, more preferably 0.9 or more. Also, the ratio n / m is, in one embodiment, 2.0 or less, and in another embodiment, 1.7 or less, preferably 1.5 or less, more preferably 1.3.
- the polymer Q is preferably a pyrophosphoric acid represented by the following formula (B4A).
- polymer Q is a polyphosphoric acid represented by the following formula (B4B).
- m a is an integer of 3 or more.
- ma is an integer of 4 or more.
- m a is an integer of 5 or more.
- the term "polymer” refers in the broadest definition to a degree of polymerization of 2 or more, but the term “polyphosphoric acid” refers to a degree of polymerization of 3 or more.
- pyrophosphate is included in the broadest definition of polymer but not included in the definition of polyphosphate.
- a compound of the formula (B3) in which Y has a 1,3,5-triazine structure is represented by, for example, the following formula (B1A).
- Q is a polymer and n is any positive integer.
- Q is preferably a polymer that forms a stable bond with a 1,3,5-triazine structure or R 21 , R 22 or R 23 , more preferably a polymer having an acidic group, specifically, For example, it is a pyrophosphoric acid represented by the formula (B4A) or a polyphosphoric acid represented by the formula (B4), and more preferably a polyphosphoric acid represented by the formula (B4).
- R 21, R 22 and R 23 may be used the same as R 21, R 22 and R 23 in the formula (B1). That is, R 21 , R 22 and R 23 are a hydrogen atom or any monovalent substituent. Preferably, at least one of R 24 , R 25 and R 26 is other than a hydrogen atom. More preferably, at least one of R 21 , R 22 and R 23 is an amino group or a substituted amino group. More preferably, R 21 , R 22 and R 23 are each independently an amino group or a substituted amino group. Particularly preferably, R 21 , R 22 and R 23 are all amino groups.
- the compound having the structure of the above formula (B1A) may be a salt.
- types of salts include acid addition salts in which an acidic compound is added to basic nitrogen in the compound.
- acid addition salt phosphate and pyrophosphate are preferable.
- preferred salts are the phosphate or pyrophosphate of the compound of the above formula (B1A).
- Q is a polymer having an acidic group, and at least one of R 21 , R 22 and R 23 is a basic substituent, and acidic in the polymer It is bound to a group.
- Q is a pyrophosphoric acid represented by the formula (B4A) or a polyphosphoric acid represented by the formula (B4B), and at least one of R 21 , R 22 and R 23 is an amino group A bond is formed between the amino group and an acid group (P-OH) in pyrophosphoric acid or polyphosphoric acid.
- Examples of the compound of the formula (B3) where Y has a 1,3,5-triazine fused ring structure include compounds represented by the following formula (B2A).
- R 24 , R 25 and R 26 independently represent a hydrogen atom or any monovalent substituent.
- at least one of R 24 , R 25 and R 26 is other than a hydrogen atom.
- at least one of R 24 , R 25 and R 26 is an amino group or a substituted amino group.
- R 24 , R 25 and R 26 are each independently an amino group or a substituted amino group.
- R 24 , R 25 and R 26 are all amino groups.
- phosphate and pyrophosphate are preferable.
- preferred salts are the phosphate or pyrophosphate of the compound of the above formula (B2A).
- the compound having the structure of the above formula (B2A) may be a salt.
- types of salts include acid addition salts in which an acidic compound is added to basic nitrogen in the compound.
- Q is a polymer having an acidic group, and at least one of R 24 , R 25 and R 26 is a basic substituent, and acidic in the polymer It is bound to a group.
- Q is a polyphosphoric acid represented by the above formula (B4), and at least one of R 24 , R 25 and R 26 is an amino group, and the amino group and polyphosphoric acid A bond is formed between the acid group (P-OH).
- nitrogen-containing compound having a 1,3,5-triazine structure and the amine compound having a 1,3,5-triazine structure include, for example, melamine, ureidomelamine, N 2 , N 4 -diethylmelamine, N, N'-diallylmelamine, hexamethylmelamine, melam, ammeline, ammelide, melamine phosphate, melam phosphate, melamine phosphonate, melamine phosphinate, melamine sulfate, melamine nitrate, melamine borate, melamine pyrophosphate, melamor pyrophosphate, polyphosphate Homopolymers of acid melamine, polyphosphate melam, metaphosphate melamine, metaphosphate metalam, melamine cyanurate, and 2-piperazinylene-4-morpholino-1,3,5-triazine, acetoguanamine, benzoguanamine, acrylogu
- the nitrogen-containing compound having a 1,3,5-triazine structure is also a compound represented by the following formula (B5), or a phosphate, pyrophosphate or polyphosphate of a compound of the following formula (B5) It may be a salt.
- R 31 and R 32 are the same or different and are a hydrogen atom or an alkyl group
- R 33 And R 34 are the same or different and are a hydrogen atom, an alkyl group, a cyanoalkyl group, a carboxyalkyl group, an alkoxycarbonylalkyl group, an aryloxycarbonylalkyl group, a haloformylalkyl group, or a guanamyl alkyl group.
- the carbon number of each alkyl group and alkoxy group is preferably 1 to 6.
- the carbon number of aryl is preferably 6 to 12.
- Specific examples of the nitrogen-containing compound having a 1,3,5-triazine fused ring structure and the amine compound having a 1,3,5-triazine fused ring structure include, for example, melem, melon, pyrophosphate melem, polyphosphate melem, Pyrophosphate melon, polyphosphate melon and the like can be mentioned.
- melon means a compound having a structure in which melem is condensed.
- Polyphosphate melon means a compound having a structure in which melon is bound to polyphosphate.
- the pyrophosphate melon means a compound having a structure in which melon is bound to pyrophosphate.
- nitrogen-containing compound of the component (B) examples include melamine phosphate, melam phosphate, melem phosphate, melon phosphate, melamine metaphosphate, melam metaphosphate, melem metaphosphate, melato metaphosphate, melamine pyrophosphate, Preferred are melam pyrophosphate, melem pyrophosphate, melon pyrophosphate, melamine polyphosphate, melam polyphosphate, melem polyphosphate and melon polyphosphate, with melamine phosphate, melamine pyrophosphate and melamine polyphosphate being more preferred.
- the flame retardant composition of the present invention comprises the component (A) and the component (B).
- the flame retardant composition of the present invention comprises the component (A) and the component (B).
- the phosphoric acid ester amide compound represented by General formula (I) exhibits the outstanding flame-retardant effect by combined use with a nitrogen-containing compound.
- the value of the blend ratio (mass ratio) (A) / (B) to be larger than 1, significantly high flame retardancy can be achieved.
- the lower limit value of the mass ratio of the blending ratio (A) / (B) of the phosphoric acid ester amide compound represented by the general formula (I) to the nitrogen-containing compound is preferably larger than 1, and more preferably 1.3. Or more, more preferably 1.5 or more, still more preferably 1.7 or more, and particularly preferably 2 or more. Further, the upper limit value of the mass ratio of (A) / (B) is preferably 6 or less, more preferably 5 or less, and still more preferably 4 or less. When the value of (A) / (B) is too small or too large, the flame retardant performance is lowered as compared with the case where the value of (A) / (B) is within the preferable range.
- the flame retardancy is further improved by adding a metal oxide or metal salt as an auxiliary to the flame retardant composition.
- any metal oxide known as a flame retardant auxiliary can be used.
- the metal that constitutes the metal oxide can be any metal. Transition metals or alkaline earth metals are preferred.
- metal oxide examples include, for example, zinc oxide, zirconium oxide, silver oxide, magnesium oxide, aluminum oxide, titanium oxide, molybdenum trioxide, bismuth oxide, stannic oxide and the like.
- any metal salt known as a flame retardant auxiliary can be used.
- the metal that constitutes the metal salt may be any metal. Transition metals or alkaline earth metals are preferred.
- the metal constituting the metal salt is a divalent or trivalent metal.
- specific examples of the metal constituting the metal salt include magnesium, calcium, strontium, barium, aluminum, germanium, tin, antimony, bismuth, zinc, titanium, zirconium, manganese, iron and cerium.
- the metal constituting the metal salt is aluminum, calcium or zinc. Each of these metals can be combined with various acids described later to form a metal salt.
- Acids containing oxygen are preferred. More preferably, it is an oxygen acid containing a sulfur atom, a nitrogen atom or a phosphorus atom and an oxygen atom.
- the acid may be an inorganic acid or an organic acid. Specific examples of the inorganic acid include sulfuric acid, nitric acid, phosphoric acid, metaphosphoric acid, tripolyphosphoric acid, polyphosphoric acid, hypophosphorous acid and the like.
- organic acid what the organic group (for example, alkyl group) couple
- the metal salt is a metal salt of sulfuric acid, nitric acid, phosphoric acid, metaphosphoric acid, triphosphoric acid, polyphosphoric acid or hypophosphorous acid, or metal salt of organic phosphinic acid, metal salt of organic diphosphinic acid or organic salt It is a metal salt of polyphosphinic acid.
- magnesium sulfate, aluminum sulfate, barium sulfate, a zinc sulfate etc. are mentioned, for example.
- nitrate metal salt magnesium nitrate, aluminum nitrate, barium nitrate, a zinc nitrate etc. are mentioned, for example.
- magnesium phosphate As a specific example of a phosphoric acid metal salt, magnesium phosphate, calcium phosphate, aluminum phosphate, a zinc phosphate etc. are mentioned, for example.
- organic phosphinic acid refers to phosphinic acid having an organic group.
- organic phosphinic acids one or two hydrogen atoms are replaced by organic groups.
- two hydrogen atoms are substituted by an organic group.
- the organic group is preferably an alkyl group, more preferably an alkyl group having 1 to 6 carbon atoms.
- the organophosphinic acid metal salt is represented by the following Formula (II):
- R 41 and R 42 each independently represent a linear or branched alkyl group having 1 to 6 carbon atoms
- M is a divalent metal (e.g., calcium or zinc) and s is 2 or M is a trivalent metal (e.g., aluminum) and s is 3.
- the metal organic phosphinate is aluminum tris (dialkylphosphinate), calcium bis (dialkylphosphinate), or zinc bis (dialkylphosphinate).
- organic phosphinic acid metal salt examples include, for example, magnesium bis (methylethylphosphinic acid), aluminum tris (methylethylphosphinic acid), zinc bis (methylethylphosphinic acid), iron tris (methylethylphosphinic acid), tris (Diethylphosphinic acid) aluminum, bis (diethylphosphinic acid) zinc and the like. Preferred are aluminum tris (diethylphosphinic acid) and zinc bis (diethylphosphinic acid).
- the organic diphosphinic acid refers to a compound having a structure in which phosphorus atoms in the molecules of two organic phosphinic acids are linked via an organic group.
- the organic group binding the phosphorus atoms of the two organic phosphinic acids is preferably a divalent hydrocarbon group, and specifically, for example, an alkylene group, an arylene group, an alkylarylene group, an arylalkylene group, etc. .
- the carbon number of the alkyl moiety in these hydrocarbon groups is preferably 1 to 6.
- the carbon number of the aryl moiety in these hydrocarbon groups is preferably 6 to 12.
- the organic diphosphinic acid metal salt is represented by the following Formula (III):
- R 43 and R 44 are independently a linear or branched alkyl group having 1 to 6 carbon atoms
- R 45 is a linear or branched alkylene having 1 to 10 carbon atoms A group, an arylene group having 6 to 10 carbon atoms, an alkylarylene group, or an arylalkylene group.
- M is a divalent metal (eg, calcium or zinc)
- s is 2
- t is 1 and u is 1
- M is a trivalent metal (eg, , Aluminum)
- s is 3
- t 3, and u is 2.
- organic diphosphinic acid metal salt examples include, for example, aluminum methanedi (methylphosphinate), zinc methanedi (methylphosphinate), aluminum ethanedi (ethylphosphinate), zinc ethanedi (ethylphosphinate) and the like.
- the organic polyphosphinic acid refers to a polymer having a structure in which three or more molecules of the organic phosphinic acid are bonded.
- Conventionally known organic polyphosphinic acid metal salts can be used in the present invention. Specifically, for example, metal salts of the acids described in Japanese Patent Application Publication No. 2002-540224 under the name "polymeric phosphinic acid" can be used.
- the organic polyphosphinic acid metal salt is represented by the following Formula (IV):
- X a independently represents a hydrogen atom or a metal atom.
- valence of the metal atom is y
- one metal atom is bonded to y oxygen atoms. That is, (1 / y) metal atoms are bonded to one oxygen atom.
- X a is a divalent metal (eg, calcium or zinc)
- “—OX a ” is “—O ⁇ (X a 2+ ) 1/2 ”
- one X at two oxygen atoms a atom is attached. That is, a structure of “(—O ⁇ ) 2 X a 2+ ” is formed.
- R 46 and R 47 independently represent a hydrogen atom, a carboxyl group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having 1 to 10 carbon atoms, a phenyl group, a benzyl group or an alkyl substituted aromatic group It is a group.
- the carboxylic acid derivative group is preferably a group represented by the formula —COOR 7 , wherein R 7 is an alkyl group having 1 to 4 carbon atoms.
- R 48 and R 49 independently represent a hydrogen atom or a substituted or unsubstituted vinyl group represented by General Formula (V).
- -CR 46 CHR 47 (V) (Wherein, R 46 and R 47 have the above meanings)
- v is the number of repeated structures, and, specifically, is 2 or more.
- the organic polyphosphinic acid metal salt polyethylene polyethylene phosphinate aluminum etc. are mentioned, for example.
- aluminum hypophosphite or aluminum tris (diethylphosphinate) is particularly preferred.
- the compounding quantity in the flame retardant composition of a component (C) is not specifically limited, 0.1 mass part or more is preferable with respect to 100 mass parts of total amounts of a component (A) and a component (B). More preferably, it is 1 part by mass or more, and more preferably 2 parts by mass or more. Moreover, 30 mass parts or less are preferable with respect to 100 mass parts of total amounts of a component (A) and a component (B), 20 mass parts or less are more preferable, and 10 mass parts or less are especially preferable. If the amount is too small, it is difficult to obtain the addition effect. If the amount is too large, the physical properties of the thermoplastic resin composition may be reduced.
- thermoplastic resin of component (D) any thermoplastic resin can be used.
- thermoplastic resin examples include polyolefin resin, polyester resin, polyurethane resin, styrene resin, acrylic resin, polycarbonate resin, and polyamide resin.
- the thermoplastic resin may be a homopolymer or a copolymer.
- polypropylene, polystyrene, polyethylene, polyvinyl alcohol, polyvinyl acetate, polyvinyl acetal, polyvinyl butyral, ABS resin, AS resin, methacrylic resin, thermoplastic polyurethane resin, polycarbonate, polyamide and the like can be mentioned.
- 1 type of resin may be used independently, and 2 or more types of resin may be mixed and used.
- thermoplastic resin of component (D) is preferably a polyolefin resin, more preferably polyethylene, polypropylene and copolymers comprising propylene or ethylene.
- the type of polyethylene is not particularly limited, and may be high density polyethylene (HDPE), linear low density polyethylene (LLDPE), or branched low density polyethylene (LDPE). It may be ultra-high molecular weight polyethylene (UHMWPE).
- HDPE high density polyethylene
- LLDPE linear low density polyethylene
- LDPE branched low density polyethylene
- UHMWPE ultra-high molecular weight polyethylene
- polypropylene is not particularly limited, and may be isotactic polypropylene, syndiotactic polypropylene, or atactic polypropylene.
- the copolymer containing propylene or ethylene may be a copolymer of propylene and another monomer, may be a copolymer of ethylene and another monomer, or may be a copolymer of propylene, ethylene and another monomer Good.
- the proportion of ethylene in the copolymer is preferably 10 mol% or more, more preferably 30 mol% or more, and still more preferably 50 mol% or more. And particularly preferably 70 mol% or more.
- the proportion of propylene in the copolymer is preferably 10 mol% or more, more preferably 30 mol% or more, still more preferably 50 mol% or more. And particularly preferably 70 mol% or more.
- the ratio of the total amount of ethylene and propylene in the copolymer is preferably 10 mol% or more, more preferably 30 mol% or more. More preferably, it is 50 mol% or more, and particularly preferably 70 mol% or more.
- halogen-containing monomers eg, vinyl chloride monomers
- the copolymer does not contain a halogen containing monomer, as halogen containing monomers are not preferred from an environmental point of view.
- thermoplastic resin of component (D) it is also possible to use a halogen-containing thermoplastic resin (for example, polyvinyl chloride resin).
- a halogen-containing thermoplastic resin for example, polyvinyl chloride resin
- the thermoplastic resin of the component (D) does not contain the halogen-containing thermoplastic resin.
- thermoplastic resin of component (D) it is also possible to use a halogen-containing thermoplastic resin mixed with a halogen-free thermoplastic resin.
- a halogen-containing thermoplastic resin mixed with a halogen-free thermoplastic resin.
- the content of the halogen-containing thermoplastic resin is preferably 30% by mass or less, more preferably 10% by mass or less, of the total amount of the halogen-containing thermoplastic resin and the halogen-free thermoplastic resin. It is more preferable to set it to 5% by mass or less, and particularly preferable to set it to 1% by mass or less.
- an anti-drip agent can be used as the component (E), if necessary.
- Any known compound can be used as the anti-drip agent of component (E).
- Specific examples thereof include fluorine resins such as polytetrafluoroethylene and polyhexafluoropropylene, and perfluoroalkanesulfonic acid alkali metal salts such as potassium perfluorobutanesulfonate and sodium perfluorooctanesulfonate.
- fluorine resins such as polytetrafluoroethylene and polyhexafluoropropylene
- perfluoroalkanesulfonic acid alkali metal salts such as potassium perfluorobutanesulfonate and sodium perfluorooctanesulfonate.
- PTFE polytetrafluoroethylene
- the flame retardant thermoplastic resin composition of the present invention can be obtained by mixing the components of the flame retardant composition and the thermoplastic resin.
- the flame retardant thermoplastic resin composition is prepared by mixing the components of the flame retardant composition to prepare the flame retardant composition, and then mixing the prepared flame retardant composition with the thermoplastic resin.
- a method may be used, and a method of mixing each component of the flame retardant composition and the thermoplastic resin may be used without performing the step of preparing the flame retardant composition.
- the compounding quantity of the component (A) in a thermoplastic resin composition is not specifically limited, 6 mass parts or more of 100 mass parts of total amounts of a component (A)-a component (D) are preferable, and 10 mass parts or more are preferable. Is more preferable, and 14 parts by mass or more is particularly preferable. Moreover, 37 parts by mass or less of the total amount of 100 parts by mass of the components (A) to (D) is preferable, 34 parts by mass or less is more preferable, 31 parts by mass or less is more preferable, 28 parts by mass or less is more preferable , 26 parts by mass or less is particularly preferable. If the amount is too small, it is difficult to obtain the addition effect. If the amount is too large, the physical properties of the thermoplastic resin composition may be reduced.
- the compounding quantity of the component (B) in a thermoplastic resin composition is not specifically limited, 1 mass part or more is preferable in 100 mass parts of total amounts of a component (A)-a component (D), and 2 mass parts or more are preferable. Is more preferable, 3 parts by mass or more is more preferable, and 5 parts by mass or more is particularly preferable. Moreover, 15 parts by mass or less of the total amount of 100 parts by mass of the components (A) to (D) is preferable, 14 parts by mass or less is more preferable, 13 parts by mass or less is more preferable, 12 parts by mass or less is particularly preferable . If the amount is too small, it is difficult to obtain the addition effect. If the amount is too large, the physical properties of the thermoplastic resin composition may be reduced.
- the total blending amount of the phosphoric acid ester amide compound of the component (A) and the nitrogen-containing compound of the component (B) is 1 part by mass or more in 100 parts by mass of the total amount of the components (A) to (D). Is preferably 5 parts by mass or more, more preferably 10 parts by mass or more, still more preferably 15 parts by mass or more, and particularly preferably 20 parts by mass or more. If the total blending amount of the phosphoric acid ester amide compound of the component (A) and the nitrogen-containing compound of the component (B) is too small, high flame retardancy may not be achieved.
- the total content of the phosphoric acid ester amide compound of component (A) and the nitrogen-containing compound of component (B) is preferably 50 parts by mass or less, more preferably 45 parts by mass or less, and 40 parts by mass. It is more preferably part or less, still more preferably 35 parts by mass or less, and particularly preferably 30 parts by mass or less. If the total blending amount of the phosphoric acid ester amide compound of the component (A) and the nitrogen-containing compound of the component (B) is too large, the physical properties of the resin may be lowered.
- the compounding quantity of component (C) in a thermoplastic resin composition is not specifically limited, 0.1 mass part or more is preferable among 100 mass parts of total amounts of component (A)-component (D), and 0. 3 mass parts or more are more preferable, and 0.5 mass parts or more are especially preferable. Moreover, 10 parts by mass or less of the total amount 100 parts by mass of the components (A) to (D) is preferable, 7 parts by mass or less is more preferable, 5 parts by mass or less is more preferable, 3 parts by mass or less is particularly preferable . If the amount is too small, it is difficult to obtain the addition effect. If the amount is too large, the physical properties of the thermoplastic resin composition may be reduced.
- the compounding quantity of component (E) in a thermoplastic resin composition is not specifically limited, 0.03 mass parts or more are preferable with respect to 100 mass parts of total amounts of component (A)-component (D), and 0. 05 parts by mass or more is more preferable, 0.1 parts by mass or more is more preferable. Moreover, 2.0 mass parts or less are preferable, and 1.0 mass parts or less are more preferable. If the amount is too small, it is difficult to obtain the addition effect. If the amount is too large, the physical properties of the thermoplastic resin may be reduced.
- Flame retardants other than the flame retardant composition of the present invention can also be used in the thermoplastic resin composition of the present invention, as needed. That is, compounds other than the component (A), the component (B) and the component (C) that can impart flame retardancy to a thermoplastic resin (hereinafter referred to as "other flame retardants") are thermoplastic resin compositions It can also be used for
- organic flame retardants other than phosphoroamidate compounds or inorganic flame retardants can be used.
- organic flame retardants other than phosphoroamidate compounds include halogen flame retardants and phosphate ester flame retardants.
- inorganic flame retardants include antimony compounds, metal hydroxides and the like.
- metal hydroxide aluminum hydroxide (alumina hydrate), magnesium hydroxide etc. are mentioned, for example.
- the amount of other flame retardant used is preferably 20 parts by mass or less, more preferably 10 parts by mass or less, still more preferably 5 parts by mass or less, and 1 part by mass or less with respect to 100 parts by mass of the thermoplastic resin Is more preferred.
- the amount of the other flame retardant to be used is preferably 100 parts by mass or less, more preferably 50 parts by mass or less, and further preferably 20 parts by mass or less based on 100 parts by mass of the flame retardant composition of the present invention Preferably, 10 parts by mass or less is more preferable.
- the thermoplastic resin of the present invention does not contain a halogen-based flame retardant. That is, it does not contain a compound that contains halogen atoms and can impart flame retardancy to the thermoplastic resin.
- the flame retardant comprising only the component (A) and the component (B), or only the component (A), the component (B) and the component (C), without mixing other flame retardants Use a flame retardant.
- the flame retardant of the present invention can achieve high flame retardancy and various performances required for conventional thermoplastic resin products without being mixed with other flame retardants. Therefore, it is not necessary to mix other flame retardants with the thermoplastic resin composition of the present invention unless the targeted thermoplastic resin product is a product for a special purpose.
- the components (A) to (C) and (C) and (C) and (C) and (C) and (C) and (C) and (C) can be added according to the properties desired for the resin composition within a range not affecting Various additives other than (E) can be blended.
- additives other than (E) can be blended.
- UV absorbers, antioxidants, light stabilizers, colorants (eg, dyes or pigments), surface modifiers, antibacterial agents, insect repellents, antistatic agents, fillers (eg, inorganic fillers), toughened An agent (for example, a glass fiber reinforcement) etc. can be added.
- each of these additives can be 0.01 parts by mass or more, and 0.1 parts by mass or more, or 1 part by mass or more with respect to 100 parts by mass of the thermoplastic resin. It is possible to reduce the amount to 20 parts by mass or less, and to reduce the amount to 10 parts by mass or less or 5 parts by mass or less.
- additives such as the colorant, the crosslinking agent, the ultraviolet light absorber, the hydrolysis inhibitor, the filler, and the toughening agent described above are not necessarily required for the thermoplastic resin composition of the present invention. It is sufficient if these additives are used in the thermoplastic resin composition in the minimum amount necessary based on the performance required for the target thermoplastic resin product.
- ⁇ Method of Preparing Composition The operation of mixing and stirring in preparation of the flame retardant composition or preparation of the flame retardant thermoplastic resin composition may be carried out using a conventional stirring device, for example, various mills, Henschel mixer (FM mixer), etc. it can. The order of addition does not matter as long as the various components can be uniformly mixed. All components may be mixed at once and mixed and stirred in a stirrer. Alternatively, a phosphoric acid ester amide compound may be added from a side feeder.
- a conventional stirring device for example, various mills, Henschel mixer (FM mixer), etc. it can.
- the order of addition does not matter as long as the various components can be uniformly mixed. All components may be mixed at once and mixed and stirred in a stirrer. Alternatively, a phosphoric acid ester amide compound may be added from a side feeder.
- thermoplastic resin and phosphoric acid ester amide compound are prepared, and the masterbatch of the amount necessary to obtain the amount of flame retardant required according to the flame retardant standard of the final product is thermoplastic resin It is also possible to blend in the composition to obtain a flame retardant resin composition having a desired flame retardancy.
- thermoplastic resin it is also possible to obtain a flame retardant resin composition by mixing the flame retardant with the thermoplastic resin when performing heat melt molding (for example, injection molding or extrusion molding) of the thermoplastic resin.
- the flame retardant thermoplastic resin composition of the present invention can be molded by any method known as a method of molding a thermoplastic resin.
- a desired molded product can be easily obtained by using a molding machine and a mold according to the desired molded product.
- various molded articles such as automobile interior materials, packaging materials, electric parts, sheets or films for building materials, wire covering materials and the like can be formed.
- the resulting molded articles have the advantage of being excellent in flame retardancy and water resistance.
- Example 1 The phosphoric acid ester amide compound powder obtained in Synthesis Example 1 and melamine polyphosphate (PMP-100 manufactured by Nissan Chemical Industries, Ltd.) were mixed in the proportions shown in Table 1A to obtain a flame retardant composition. Next, the flame retardant composition, polypropylene resin (Prime Polypro (registered trademark) J-750 HP, made of prime polymer), and a drip inhibitor were mixed so as to be each part by weight of Table 1A.
- PMP-100 melamine polyphosphate
- kneading was performed at 180 ° C. with a twin-screw kneader to obtain a strand.
- the obtained strand was pelletized by a pelletizer to obtain pellets.
- the resulting pellets were dried at 80 ° C. for 8 hours, and then 42 g of pellets were formed into a sheet shape using a hot press. Put the pellets in the mold of the heat press (length 260 mm x width 200 mm x thickness 0.5 mm) and hold the mold at 175 ° C for 3 minutes without applying pressure, then maintain the temperature of 175 ° C The pressure was gradually increased to 15 MPa at a pressure rate of 5 MPa / 0.5 min. Then, the pressure was immediately reduced to normal pressure (0.1 MPa), and the compact was transferred to a cooling press, and then a pressure of 5 MPa was again applied to perform cold pressing to lower the compact to room temperature. Thereafter, the sheet (length 260 mm ⁇ width 200 mm ⁇ thickness 0.5 mm) was taken out of the mold.
- pellets were molded at a molding temperature of 180 ° C. using an injection molding machine (FN2000: manufactured by Nissei Plastic Industry Co., Ltd.) to prepare test pieces of a predetermined shape in accordance with UL-94.
- Used in parts by weight shown in Table 1B: Melamine phosphate (Melagard (registered trademark) MP from Italmatch Chemicals, Inc. (molecular formula: C 3 H 9 N 6 O 4 P, phosphoric acid: molar ratio of melamine 1: 1) Sheets and test pieces were obtained in the same manner as in Example 1 except that the above were used.
- the polypropylene sheet containing the phosphoric acid ester amide compound of Examples 1 and 2 and the nitrogen-containing compound having a 1,3,5-triazine structure has a phosphorus elution amount under high temperature and high humidity conditions. Is 1.0 ppm or less, and it can be seen that the surface of the sheet sample also has no change before and after the test, and has excellent water resistance. Similarly, it is clear that the polypropylene sheet of Example 3 also exhibits excellent water resistance.
- Comparative Examples 1, 2 and 3 the elution of the phosphorus compound from the polypropylene sheet was large, and the surface of the sheet specimen was formed with pinholes. Therefore, in the resin compositions of Comparative Examples 1, 2 and 3, the water resistance was It is understood that the sex is low. Therefore, it is understood that the formulations of Comparative Examples 1, 2 and 3 make it difficult to use in the field requiring water resistance.
- the flame retardancy test was conducted according to the vertical test combustion method of “flame retardant test of plastic material for parts of equipment” of UL Subject 94 (Underwriters Laboratories Inc.). The thickness of the test piece was 1.6 mm (1/16 inch).
- the oxygen index (L.O.I) was measured in accordance with Japanese Industrial Standard JIS K7201 (test method of flammability by oxygen index).
- Deflection temperature under load (HDT) was measured in accordance with Japanese Industrial Standard JIS K 7191 (How to determine deflection temperature under load).
- Examples 4 to 13 and Comparative Examples 4 to 8 After mixing the polypropylene resin (Prime Polypro (registered trademark) J-750HP) and the phosphoric acid ester amide compound of Synthesis Example 1 or Comparative Synthesis Example 1 in the compounding amounts shown in Tables 2A and 2B, zinc oxide is optionally added. Alternatively, aluminum hypophosphite was added. After that, anti-drip agent (Teflon-6J) was added and thoroughly mixed and homogenized. Thereafter, the mixture was kneaded at 180 ° C. by a twin-screw kneading extruder (TEM-37BS: manufactured by Toshiba Machine Co., Ltd.) and cooled to obtain a strand.
- TEM-37BS twin-screw kneading extruder
- the obtained strand was pelletized by a pelletizer to obtain pellets.
- the pellet was dried at 80 ° C. for 8 hours. Thereafter, the pellets were molded at a molding temperature of 180 ° C. using an injection molding machine (FN2000: manufactured by Nissei Plastic Industry Co., Ltd.) to produce predetermined test pieces.
- the obtained test pieces were used to perform a combustion test, an oxygen index measurement, an impact resistance test, and a load deflection test, respectively.
- the results are shown in Tables 2A and 2B.
- the compounding quantity in Table 2A and Table 2B is a mass part.
- Example 14 Example 1 except that tris (diethylphosphinic acid) aluminum (trade name: manufactured by Clariant, Exolit OP-1230) was used in the parts by mass shown in Table 2B instead of the flame retardant composition used in Example 1. Sheets and test pieces were obtained in the same manner as in.
- tris (diethylphosphinic acid) aluminum trade name: manufactured by Clariant, Exolit OP-1230
- the flame retardant composition according to the present invention can impart high flame retardancy.
- the composition containing the phosphoric acid ester amide compound described in the formula (4) and the nitrogen-containing compound having a 1,3,5-triazine structure provided high flame retardancy (Examples 4 to 14).
- high flame retardancy was achieved even when the addition amount was reduced (Example 7).
- the flame retardant composition of the present invention can impart flame retardancy even when the anti-drip agent is not used (Example 4). And the composition to which the anti-drip agent was added achieved UL-94 (V-0 or V-1) even with a thin test piece.
- the phosphoric acid ester amide compound represented by the formula (12), which is considered to be effective for imparting flame retardancy to the polyester resin (PBT) disclosed in JP-A 2003-226818 and US 2003/0109608, is polypropylene.
- PBT polyester resin
- a sufficient flame-retardant effect was not able to be acquired (comparative example 7).
- a phosphoric acid ester amide compound and melamine phosphate were used in combination, a sufficient flame retardant effect could not be obtained (Comparative Example 8).
- Example 13 and Comparative Example 8 are compared, it is clear that the compound of Formula (4) is significantly superior to the compound of Formula (12) also in the composition containing Component (C). .
- a flame retardant thermoplastic resin composition having a high flame retardancy effect and excellent water resistance is provided.
- a non-halogen flame retardant composition for use in the flame retardant thermoplastic resin composition.
- the flame retardant and resin composition of the present invention can be used for molded articles such as automobile interior materials, packaging materials, electric parts, sheets or films for building materials, wire coverings, etc., and in particular, both water resistance and flame retardancy. Is useful in molded articles for applications where it is required.
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Abstract
Description
成分(A)および成分(B)を含む難燃剤組成物であって、
該成分(A)は、下記一般式(I):
該成分(B)は、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有する含窒素化合物である、
難燃剤組成物。
前記成分(A)と成分(B)の配合比(質量比)(A)/(B)の値が1よりも大きい、上記項1に記載の難燃剤組成物。
前記一般式(I)において、R1、R2、R3及びR4がメチル基であり、R11、R12、R13及びR14がメチレン基である、上記項1または2に記載の難燃剤組成物。
前記一般式(I)において、R15がエチレン基である、上記項1~3のいずれか1項に記載の難燃剤組成物。
前記一般式(I)において、R5及びR6が水素原子である、上記項1~4のいずれか1項に記載の難燃剤組成物。
(項6)
前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のリン酸塩、ピロリン酸塩、もしくはポリリン酸塩である、上記項1~5のいずれか1項に記載の難燃剤組成物。
前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のポリリン酸塩である、上記項6に記載の難燃剤組成物。
(項8)
前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のピロリン酸塩である、上記項6に記載の難燃剤組成物。
(項9)
前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のリン酸塩である、上記項6に記載の難燃剤組成物。
さらに成分(C)として金属酸化物または金属塩を含む、上記項1~9のいずれか1項に記載の難燃剤組成物。
前記成分(C)が次亜リン酸アルミニウムである、上記項10に記載の難燃剤組成物。
(項12)
前記成分(C)が、有機ホスフィン酸金属塩、有機ジホスフィン酸金属塩または有機ポリホスフィン酸金属塩である、上記項10に記載の難燃剤組成物。
前記成分(A)と成分(B)との配合比(質量比)(A)/(B)が1.3~5である、上記項1~12のいずれか1項に記載の難燃剤組成物。
上記1~13のいずれか1項に記載の難燃剤組成物と成分(D)熱可塑性樹脂を含む、難燃性熱可塑性樹脂組成物。
前記成分(A)~成分(D)の合計量100質量部に対して、前記成分(A)および成分(B)の合計量が10質量部~50質量部である、上記項14に記載の難燃性熱可塑性樹脂組成物。
さらに成分(E)としてドリップ防止剤を含む、上記項14~15のいずれか1項に記載の難燃性熱可塑性樹脂組成物。
前記成分(E)のドリップ防止剤がポリテトラフルオロエチレンである、上記項16に記載の難燃性熱可塑性樹脂組成物。
前記成分(D)の熱可塑性樹脂がポリオレフィン樹脂である、上記項14~17のいずれか1項に記載の難燃性熱可塑性樹脂組成物。
前記ポリオレフィン樹脂が、ポリプロピレン、ポリエチレン、またはプロピレンもしくはエチレンを含むコポリマーである、上記項18に記載の難燃性熱可塑性樹脂組成物。
本発明の難燃剤組成物は、リン酸エステルアミド化合物(成分(A))および1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有する化合物(成分(B))を含む。
成分(A)のリン酸エステルアミド化合物は、一般式(I):
一般式(I)で表されるリン酸エステルアミド化合物を合成する方法は特に限定されない。一般式(I)で表されるリン酸エステルアミド化合物の公知の合成方法をそのまま用いて合成してもよい。また、その公知の合成方法を適宜改変しても良い。従って、一般式(I)で表されるリン酸エステルアミド化合物は、リン酸エステルアミド化合物の合成に関して公知の各種反応を応用して合成することができる。
成分(B)は、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有する含窒素化合物である。
成分(B)の化合物において、1,3,5-トリアジン構造を有するアミン化合物とは、1,3,5-トリアジン環構造およびアミノ基を有する化合物をいう。1,3,5-トリアジン構造を有するアミン化合物の例としては例えば、上記式(B1)において、R21、R22およびR23のうちの少なくとも1つがアミノ基または置換アミノ基である化合物であり、あるいは、R21、R22およびR23のうちの少なくとも1つがアミノ基または置換アミノ基を含む化合物であってもよい。例えば、R21、R22およびR23のうちの少なくとも1つがアミノアルキル基である化合物であってもよい。好ましくは、R21、R22およびR23は、それぞれ独立して、アミノ基または置換アミノ基である。より好ましくは、R21、R22およびR23がいずれもアミノ基である。
上記式(B1)の構造を有する化合物塩の中で、好ましい塩は、上記式(B1)の化合物のリン酸塩またはピロリン酸塩である。より好ましくは、メラミンのリン酸塩またはピロリン酸塩である。
1つの好ましい実施形態においては、上記式(B1)の1,3,5-トリアジン環構造を有するアミン化合物のR21、R22およびR23のうちの1つ、2つまたは3つがアミノ基であって、そのうちの少なくとも1つのアミノ基が酸性化合物(例えば、リン酸基を有する化合物)と塩を形成している。このアミノ基が酸性化合物と塩を形成するという観点からも、メラミンのリン酸塩およびピロリン酸塩は好ましい。
なお、本明細書中で、リン酸塩とは、リン酸と成分(B)の含窒素化合物の塩をいい、そのリン酸:含窒素化合物のモル比は特に限定されない。すなわち、リン酸1分子に含窒素化合物が1分子のみ結合している塩であってもよく、リン酸1分子に複数の含窒素化合物分子が結合している塩であっても良い。また、複数のリン酸分子に含窒素化合物が1分子のみ結合している塩であっても良い。好ましくは、リン酸:含窒素化合物のモル比は1:1である。
本明細書中で、リン酸メラミンとは、リン酸とメラミンの塩をいい、そのリン酸:メラミンのモル比は特に限定されない。すなわち、リン酸1分子にメラミンが1分子のみ結合している塩であってもよく、リン酸1分子に複数のメラミン分子が結合している塩であっても良い。また、複数のリン酸分子にメラミンが1分子のみ結合している塩であっても良い。好ましくは、リン酸:メラミンのモル比は1:1である。
本明細書中で、ピロリン酸塩とは、ピロリン酸と成分(B)の含窒素化合物の塩をいい、そのピロリン酸:含窒素化合物のモル比は特に限定されない。すなわち、ピロリン酸1分子に含窒素化合物が1分子のみ結合している塩であってもよく、ピロリン酸1分子に複数の含窒素化合物分子が結合している塩であっても良い。好ましくは、ピロリン酸:含窒素化合物のモル比は1:1または1:2である。
本明細書中で、ピロリン酸メラミンとは、ピロリン酸とメラミンの塩をいい、そのピロリン酸:メラミンのモル比は特に限定されない。すなわち、ピロリン酸1分子にメラミンが1分子のみ結合している塩であってもよく、ピロリン酸1分子に複数のメラミン分子が結合している塩であっても良い。好ましくは、ピロリン酸:メラミンのモル比は1:1または1:2である。
また、本明細書中で、ポリリン酸塩とは、ポリリン酸と成分(B)の含窒素化合物の塩をいい、そのポリリン酸:含窒素化合物のモル比は特に限定されない。すなわち、ポリリン酸1分子に含窒素化合物が1分子のみ結合している塩であってもよく、ポリリン酸1分子に複数の含窒素化合物子が結合している塩であっても良い。
本明細書中で、ポリリン酸メラミンとは、ポリリン酸とメラミンの塩をいい、そのポリリン酸:メラミンのモル比は特に限定されない。すなわち、ポリリン酸1分子にメラミンが1分子のみ結合している塩であってもよく、ポリリン酸1分子に複数のメラミン分子が結合している塩であっても良い。
成分(B)の化合物において、1,3,5-トリアジン縮合環構造を有するアミン化合物とは、1,3,5-トリアジン縮合環構造およびアミノ基を有する化合物をいう。1,3,5-トリアジン縮合環構造を有するアミン化合物の例としては例えば、上記式(B2)において、R24、R25およびR26のうちの少なくとも1つがアミノ基または置換アミノ基である化合物であり、あるいは、R24、R25およびR26のうちの少なくとも1つがアミノ基または置換アミノ基を含む化合物であってもよい。例えば、R24、R25およびR26のうちの少なくとも1つがアミノアルキル基である化合物であってもよい。好ましくは、R24、R25およびR26は、それぞれ独立して、アミノ基または置換アミノ基である。より好ましくは、R24、R25およびR26がいずれもアミノ基である。
上記式(B2)の構造を有する化合物塩のうち、好ましい塩は、上記式(B2)の化合物のリン酸塩またはピロリン酸塩である。より好ましくは、複数のメラミン分子が縮合した構造を有する化合物のリン酸塩またはピロリン酸塩である。
1つの好ましい実施形態においては、上記式(B2)の1,3,5-トリアジン縮合環構造を有するアミン化合物のR24、R25およびR26のうちの1つ、2つまたは3つがアミノ基であって、そのうちの少なくとも1つのアミノ基が酸性化合物(例えば、リン酸基を有する化合物)と塩を形成している。このアミノ基が酸性化合物と塩を形成するという観点からも、複数のメラミン分子が縮合した構造を有する化合物のリン酸塩およびピロリン酸塩は好ましい。
[Y-Z]n-Q (B3)
式(B3)中、Qはポリマーである。Qは結合性基を有し、好ましくは、結合性基として酸性基を有する。ポリマーの分子量は、好ましくは、150以上であり、より好ましくは、200以上であり、さらに好ましくは、500以上であり、いっそう好ましくは、1000以上であり、さらにいっそう好ましくは、2000以上である。ポリマーの分子量は、好ましくは、100万以下であり、より好ましくは、10万以下であり、さらに好ましくは、2万以下であり、いっそう好ましくは、1万以下であり、さらにいっそう好ましくは、5000以下である。
Qa-(Qb)m-Qc (B3A)
式(B3A)中、QaおよびQcは、末端基を表す。Qbは、結合性基を有する繰り返し単位である。mはQ中に含まれる結合性基の数を表す。結合性基としては、たとえば、酸性基が挙げられる。結合性基は、硫黄原子、窒素原子またはリン原子を含む酸素酸中の酸性-OH基であることが好ましい。より好ましくは、結合性基は、リン酸中のOH基である。mは2以上の整数である。1つの実施形態においては、mは、2である。別の実施形態において、mは、3以上であり、また別の実施形態においては、4以上であり、さらに別の実施形態においては、5以上である。mは、好ましくは、10000以下であり、より好ましくは、1000以下である。結合性基は式(B3)のZとの間に結合を形成する。
1つの実施形態において、式(B3)中のポリマーQは、例えば、以下の式(B3B)で表される:
Qa-(Qb)ma-Qc (B3B)
式(B3B)中、Qa、QbおよびQcの定義は、式(B3A)中のQa、QbおよびQcの定義と同じである。maは3以上の整数である。1つの実施形態では、maは4以上の整数である。別の実施形態では、maは5以上の整数である。
また、1つの実施形態においては、ポリマーQは以下の式(B4A)で表されるピロリン酸であることが好ましい。
また、別の実施形態においては、ポリマーQは以下の式(B4B)で表されるポリリン酸である。
式中、maは3以上の整数である。1つの実施形態では、maは4以上の整数である。別の実施形態では、maは5以上の整数である。
なお、本明細書中において、用語「ポリマー」は、最も広い定義においては重合度が2以上のものをいうが、用語「ポリリン酸」は、重合度が3以上のものをいう。そのため、本明細書中において、ピロリン酸は、ポリマーの最も広い定義には包含されるが、ポリリン酸の定義には包含されない。
上記式(B1A)の構造を有する化合物塩のうち、好ましい塩は、上記式(B1A)の化合物のリン酸塩またはピロリン酸塩である。
上記式(B2A)の構造を有する化合物塩のうち、好ましい塩は、上記式(B2A)の化合物のリン酸塩またはピロリン酸塩である。
1,3,5-トリアジン縮合環構造を有する含窒素化合物および1,3,5-トリアジン縮合環構造を有するアミン化合物の具体例としては、例えば、メレム、メロン、ピロリン酸メレム、ポリリン酸メレム、ピロリン酸メロン、ポリリン酸メロンなどが挙げられる。なお、本明細書中において、「メロン」は、メレムを縮合した構造を有する化合物を意味する。ポリリン酸メロンは、メロンをポリリン酸に結合させた構造を有する化合物を意味する。ピロリン酸メロンは、メロンをピロリン酸に結合させた構造を有する化合物を意味する。
本発明の難燃剤組成物は、前記成分(A)および前記成分(B)を含む。前記成分(A)と前記成分(B)を組み合わせることで、高い難燃性能を有しながら、従来技術の課題であった耐水性を向上することができる。
本発明の1つの実施形態においては、難燃剤組成物に金属酸化物または金属塩を助剤として添加することにより、更に難燃性が向上する。
1つの実施形態において、金属塩として、有機ホスフィン酸金属塩、有機ジホスフィン酸金属塩または有機ポリホスフィン酸金属塩を使用できる。
本明細書中において、有機ホスフィン酸とは、有機基を有するホスフィン酸をいう。有機ホスフィン酸においては、1つまたは2つの水素原子が有機基に置換されている。好ましくは2つの水素原子が有機基に置換されている。有機基は、好ましくはアルキル基であり、より好ましくは炭素数1~6のアルキル基である。さらに好ましくは、炭素数1~3のアルキル基であり、特に好ましくはエチル基である。
1つの実施形態において、有機ホスフィン酸金属塩は、以下の式(II)で表される。
式中、R41およびR42は、独立して、炭素数1以上6以下の直鎖もしくは分岐鎖のアルキル基であり、
ここで、Mは2価の金属(例えば、カルシウムまたは亜鉛)であって、sは2であるか、あるいは、Mは3価の金属(例えば、アルミニウム)であって、sは3である。
1つの好ましい実施形態において、有機ホスフィン酸金属塩は、トリス(ジアルキルホスフィン酸)アルミニウム、ビス(ジアルキルホスフィン酸)カルシウム、またはビス(ジアルキルホスフィン酸)亜鉛である。特に、それぞれのアルキルが炭素数1~3であるものが好ましく、炭素数2であるものがさらに好ましい。
有機ホスフィン酸金属塩の具体例としては、例えば、ビス(メチルエチルホスフィン酸)マグネシウム、トリス(メチルエチルホスフィン酸)アルミニウム、ビス(メチルエチルホスフィン酸)亜鉛、トリス(メチルエチルホスフィン酸)鉄、トリス(ジエチルホスフィン酸)アルミニウム、ビス(ジエチルホスフィン酸)亜鉛などが挙げられる。好ましくは、トリス(ジエチルホスフィン酸)アルミニウム、およびビス(ジエチルホスフィン酸)亜鉛である。
本明細書中において、有機ジホスフィン酸とは、2つの有機ホスフィン酸の分子中のリン原子が有機基を介して結合した構造を有する化合物をいう。2つの有機ホスフィン酸のリン原子を結合する有機基としては、好ましくは、2価の炭化水素基であり、具体的には例えば、アルキレン基、アリーレン基、アルキルアリーレン基、アリールアルキレン基などである。これらの炭化水素基中のアルキル部分の炭素数は、好ましくは1~6である。これらの炭化水素基中のアリール部分の炭素数は、好ましくは6~12である。
1つの実施形態において、有機ジホスフィン酸金属塩は、以下の式(III)で表される。
式中、R43およびR44は、独立して、炭素数1以上6以下の直鎖もしくは分岐鎖のアルキル基であり、R45は、炭素数1以上10以下の直鎖もしくは分岐鎖のアルキレン基、炭素数6以上10以下のアリーレン基、アルキルアリーレン基、またはアリールアルキレン基である。
ここで、Mは2価の金属(例えば、カルシウムまたは亜鉛)であって、sは2であり、tは1であり、そしてuは1であるか、あるいは、Mは3価の金属(例えば、アルミニウム)であって、sは3であり、tは3であり、そしてuは2である。
有機ジホスフィン酸金属塩の具体例としては、例えば、メタンジ(メチルホスフィン酸)アルミニウム、メタンジ(メチルホスフィン酸)亜鉛、エタンジ(エチルホスフィン酸)アルミニウム、エタンジ(エチルホスフィン酸)亜鉛などが挙げられる。
本明細書中において、有機ポリホスフィン酸とは、上記有機ホスフィン酸の分子が3つ以上結合した構造を有するポリマーをいう。従来公知の有機ポリホスフィン酸金属塩が本発明に使用可能である。具体的には、例えば、特表2002-540224号公報に「ポリマー状ホスフィン酸」という名称で記載されている酸の金属塩が使用可能である。
1つの実施形態において、有機ポリホスフィン酸金属塩は、以下の式(IV)で表される。
式中、Xaは、独立して、水素原子または金属原子を意味する。ここで、金属原子の原子価がyであれば、y個の酸素原子に1個の金属原子が結合する。すなわち、1個の酸素原子に(1/y)個の金属原子が結合する。例えば、Xaが2価の金属(例えば、カルシウムまたは亜鉛)であれば、「-OXa」は「-O-(Xa 2+)1/2」であり、2つの酸素原子に1つのXa原子が結合している。すなわち、「(-O-)2Xa 2+」の構造を形成している。Xaが3価の金属(例えば、アルミニウム)であれば、「-OXa」は「-O-(Xa 3+)1/3」であり、3つの酸素原子に1つのXa原子が結合している。すなわち、「(-O-)3Xa 3+」の構造を形成している。
R46およびR47は、独立して、水素原子、カルボキシル基、カルボン酸誘導体、非置換のまたは置換された炭素原子数1~10のアルキル基、フェニル基、ベンジル基またはアルキル置換された芳香族基である。
ここで、カルボン酸誘導体基は、好ましくは、式-COOR7で表される基であり、ここで、R7は炭素数1~4のアルキル基である。
R48およびR49は、独立して、水素原子であるか、または一般式(V)で表される置換もしくは非置換のビニル基である。
-CR46=CHR47 (V)
(式中、R46およびR47は上記の意味を有する。)
そして、vは繰り返し構造の数であり、具体的には、2以上である。
有機ポリホスフィン酸金属塩の具体例としては、例えば、ポリエチレンホスフィン酸アルミニウムなどが挙げられる。
成分(D)の熱可塑性樹脂としては、任意の熱可塑性樹脂が使用可能である。
本発明では、必要に応じて、成分(E)としてドリップ防止剤を使用できる。成分(E)のドリップ防止剤としては、公知の任意の化合物を使用することができる。その具体例としては、例えば、ポリテトラフルオロエチレン、ポリヘキサフルオロプロピレン等のフッ素樹脂、パーフルオロブタンスルホン酸カリウム、パーフルオロオクタンスルホン酸ナトリウム等のパーフルオロアルカンスルホン酸アルカリ金属塩が挙げられ、これらは1種以上の混合でも使用が可能である。中でもポリテトラフルオロエチレン(PTFE)が効果に優れており好ましい。
本発明の難燃性熱可塑性樹脂組成物は、難燃剤組成物の各成分と熱可塑性樹脂を混合することにより、得ることができる。難燃性熱可塑性樹脂組成物の調製は、難燃剤組成物の各成分を混合して難燃剤組成物を調製する工程を行った後に、調製された難燃剤組成物と熱可塑性樹脂を混合する方法を用いてもよく、難燃剤組成物を調製する工程を行わずに、難燃剤組成物の各成分と熱可塑性樹脂を混合する方法を用いてもよい。
本発明の熱可塑性樹脂組成物には、必要に応じて、本発明の難燃剤組成物以外の難燃剤を使用することもできる。すなわち、上記成分(A)、成分(B)および成分(C)以外の、熱可塑性樹脂に難燃性を付与できる化合物(以下、「その他の難燃剤」と記載する)を熱可塑性樹脂組成物に使用することもできる。
本発明の難燃性熱可塑性樹脂組成物には、本発明の効果に影響を与えない範囲内で、樹脂組成物に所望される性質に応じて、さらに、成分(A)~(C)および(E)以外の各種の添加剤を配合することができる。例えば、紫外線吸収剤、酸化防止剤、光安定剤、着色剤(例えば、染料または顔料)、表面改質剤、抗菌剤、防虫剤、帯電防止剤、充填剤(例えば、無機充填材)、強化剤(例えば、ガラス繊維強化材)等を添加することができる。
難燃剤組成物の調製または難燃性熱可塑性樹脂組成物の調製の際における混合及び攪拌の操作は、慣用の攪拌装置、例えば、各種ミル、ヘンシェルミキサー(FMミキサー)等を用いて行うことができる。各種成分を均一に混合することができれば、その添加順序は問わない。全成分を一度に攪拌装置に入れて混合及び攪拌してもよい。或いはサイドフィーダーからリン酸エステルアミド化合物を添加してもかまわない。また、熱可塑性樹脂とリン酸エステルアミド化合物のマスターバッチを作成しておき、最終製品の難燃規格に応じて必要とされる難燃剤量にするのに必要な量のマスターバッチを熱可塑性樹脂組成物に配合して、所望の難燃性を有する難燃性樹脂組成物を得ることも可能である。
本発明の難燃性熱可塑性樹脂組成物は、熱可塑性樹脂の成形方法として公知の任意の方法で成形することができる。所望される成形品に応じた成形機および金型等を用いれば、容易に所望の成形品を得ることができる。例えば、自動車内装材、包装材、電気部品、建材用シートまたはフィルム、電線被覆材等の各種成形品を成形することができる。得られる成形品は、難燃性および耐水性に優れるという利点を有する。
<式(4)の化合物の合成>
<式(12)の化合物の合成>
[平均粒径]
合成例1及び比較合成例1の化合物の平均粒径は、レーザ回折式粒子径分布測定装置(島津製作所製SALD(登録商標)2300)を用いて測定を行った。
合成例1で得られたリン酸エステルアミド化合物粉末およびポリリン酸メラミン(日産化学工業製PMP-100)を表1Aで示した割合で混合して難燃剤組成物を得た。次に、該難燃剤組成物とポリプロピレン樹脂(プライムポリプロ(登録商標)J-750HP、プライムポリマー製)、およびドリップ防止剤を表1Aの各質量部となるよう混合した。
[実施例2および3]
実施例1で使用した難燃剤組成物の代わりに、ピロリン酸メラミン(ブーデンハイム製BUDIT351)(分子式:C6H16N12O7P2、ピロリン酸:メラミンのモル比=1:2)、リン酸メラミン(イタルマッチケミカルズ製Melagard(登録商標)MP)(分子式:C3H9N6O4P、リン酸:メラミンのモル比=1:1)を表1Bに示す質量部にて用いた以外は、実施例1と同様にしてシートおよび試験片を得た。
実施例1で使用した難燃剤組成物の代わりに、ポリリン酸アンモニウム(クラリアント製Exolit(登録商標)AP422)、ポリ(ピロ)リン酸ピペラジン、2-ピペラジニレン-4-モルホリノ-1,3,5-トリアジンを構成単位とする単独重合体、メラミンシアヌレートを表1Aに示す質量部にて用いた以外は、実施例1と同様にしてシートおよび試験片を得た。
実施例1~3および比較例1~3のポリプロピレンシート(縦100mm×横50mm×厚み0.5mm)を2検体ずつ準備して、80℃×95RH%×7日の高温高湿試験を行った。試験後のフィルム表面を目視観察することにより、ピンホール発生の有無を確認した。また試験後の同フィルムを70mLの精製水で洗浄した。洗浄水を硝酸で分解した後、ICP発光分光分析でリン濃度の測定を行い、2検体のリン濃度の平均値を計算して洗浄水へのリン化合物の溶出量の指標とした。ICP発光分光分析は、サーモフィッシャーサイエンティフィック製iCAP6000シリーズICP発光分析装置を用いて測定を行った。
難燃性試験は、ULサブジェクト94(アンダーライター・ラボラトリーズインコーポレーテッド)の「機器の部品用プラスチック材料の難燃試験」の垂直試験燃焼方法に準じて行った。試験片の肉厚としては1.6mm(1/16インチ)を用いた。
酸素指数(L.O.I)は、日本工業規格 JIS K7201(酸素指数による燃焼性の試験方法)に準拠して測定を行った。
日本工業規格JIS K7110(硬質プラスチックのアイゾット衝撃試験方法)に準拠して測定を行った。
荷重たわみ温度(HDT)は、日本工業規格 JIS K7191(荷重たわみ温度の求め方)に準拠して測定を行った。
表2Aおよび表2Bに示す配合量で、ポリプロピレン樹脂(プライムポリプロ(登録商標)J-750HP)および合成例1または比較合成例1のリン酸エステルアミド化合物を混合した後、必要に応じて酸化亜鉛もしくは次亜リン酸アルミニウムを添加した。その後、ドリップ防止剤(テフロン-6J)を添加して、充分に混合して均一にした。その後、二軸混練押出機(TEM-37BS:東芝機械製)で180℃のもと混練を行い冷却してストランドを得た。得られたストランドをペレタイザーでペレット化してペレットを得た。該ペレットを80℃で8時間乾燥した。その後、射出成形機(FN2000:日精樹脂工業製)を用いてペレットを成形温度180℃で成形して、所定の試験片を作製した。得られた試験片を使用し、それぞれ燃焼試験、酸素指数測定、耐衝撃試験、荷重たわみ試験を行った。その結果を表2Aおよび表2Bに示す。なお、表2Aおよび表2B中の配合量は質量部である。
[実施例14]
実施例1で使用した難燃剤組成物の代わりに、トリス(ジエチルホスフィン酸)アルミニウム(商品名:クラリアント製、Exolit OP-1230)を表2Bに示す質量部にて用いた以外は、実施例1と同様にしてシート及び試験片を得た。
さらに、リン酸エステルアミド化合物およびリン酸メラミンを併用しても充分な難燃効果を得る事は出来なかった(比較例8)。
実施例13と比較例8の結果を比較すると、成分(C)を含む組成物においても、式(12)の化合物よりも式(4)の化合物が顕著に優れていることが明らかであった。
Claims (19)
- 前記成分(A)と成分(B)の配合比(質量比)(A)/(B)の値が1よりも大きい、請求項1に記載の難燃剤組成物。
- 前記一般式(I)において、R1、R2、R3及びR4がメチル基であり、R11、R12、R13及びR14がメチレン基である、請求項1または2に記載の難燃剤組成物。
- 前記一般式(I)において、R15がエチレン基である、請求項1~3のいずれか1項に記載の難燃剤組成物。
- 前記一般式(I)において、R5及びR6が水素原子である、請求項1~4のいずれか1項に記載の難燃剤組成物。
- 前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のリン酸塩、ピロリン酸塩、もしくはポリリン酸塩である、請求項1~5のいずれか1項に記載の難燃剤組成物。
- 前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のポリリン酸塩である、請求項6に記載の難燃剤組成物。
- 前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のピロリン酸塩である、請求項6に記載の難燃剤組成物。
- 前記成分(B)の含窒素化合物が、1,3,5-トリアジン構造または1,3,5-トリアジン縮合環構造を有するアミン化合物のリン酸塩である、請求項6に記載の難燃剤組成物。
- さらに成分(C)として金属酸化物または金属塩を含む、請求項1~9のいずれか1項に記載の難燃剤組成物。
- 前記成分(C)が次亜リン酸アルミニウムである、請求項10に記載の難燃剤組成物。
- 前記成分(C)が、有機ホスフィン酸金属塩、有機ジホスフィン酸金属塩または有機ポリホスフィン酸金属塩である、請求項10に記載の難燃剤組成物。
- 前記成分(A)と成分(B)との配合比(質量比)(A)/(B)が1.3~5である、請求項1~12のいずれか1項に記載の難燃剤組成物。
- 請求項1~13のいずれか1項に記載の難燃剤組成物と成分(D)熱可塑性樹脂を含む、難燃性熱可塑性樹脂組成物。
- 前記成分(A)~成分(D)の合計量100質量部に対して、前記成分(A)および成分(B)の合計量が10質量部~50質量部である、請求項14に記載の難燃性熱可塑性樹脂組成物。
- さらに成分(E)としてドリップ防止剤を含む、請求項14~15のいずれか1項に記載の難燃性熱可塑性樹脂組成物。
- 前記成分(E)のドリップ防止剤がポリテトラフルオロエチレンである、請求項16に記載の難燃性熱可塑性樹脂組成物。
- 前記成分(D)の熱可塑性樹脂がポリオレフィン樹脂である、請求項14~17のいずれか1項に記載の難燃性熱可塑性樹脂組成物。
- 前記ポリオレフィン樹脂が、ポリプロピレン、ポリエチレン、またはプロピレンもしくはエチレンを含むコポリマーである、請求項18に記載の難燃性熱可塑性樹脂組成物。
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TW201923050A (zh) | 2019-06-16 |
US11339273B2 (en) | 2022-05-24 |
TWI782135B (zh) | 2022-11-01 |
KR20200088352A (ko) | 2020-07-22 |
US20210171735A1 (en) | 2021-06-10 |
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