CN102015954B - Adhesive composition and optical film using the same - Google Patents
Adhesive composition and optical film using the same Download PDFInfo
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- CN102015954B CN102015954B CN2009801161239A CN200980116123A CN102015954B CN 102015954 B CN102015954 B CN 102015954B CN 2009801161239 A CN2009801161239 A CN 2009801161239A CN 200980116123 A CN200980116123 A CN 200980116123A CN 102015954 B CN102015954 B CN 102015954B
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- 239000000203 mixture Substances 0.000 title claims abstract description 45
- 239000000853 adhesive Substances 0.000 title abstract description 13
- 230000001070 adhesive effect Effects 0.000 title abstract description 13
- 239000012788 optical film Substances 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
- 239000011230 binding agent Substances 0.000 claims description 57
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 34
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 30
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 30
- 125000002393 azetidinyl group Chemical group 0.000 claims description 19
- 238000003851 corona treatment Methods 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 230000014509 gene expression Effects 0.000 claims description 11
- 125000003368 amide group Chemical group 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 8
- 229920002799 BoPET Polymers 0.000 claims description 7
- 229920000636 poly(norbornene) polymer Polymers 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 150000001450 anions Chemical class 0.000 claims description 5
- 125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 claims description 5
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 5
- -1 azetidine functional group compound Chemical class 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 125000000468 ketone group Chemical group 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920006289 polycarbonate film Polymers 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 2
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- HONIICLYMWZJFZ-UHFFFAOYSA-N azetidine Chemical group C1CNC1 HONIICLYMWZJFZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000010287 polarization Effects 0.000 description 37
- 239000010410 layer Substances 0.000 description 19
- 230000003287 optical effect Effects 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000002834 transmittance Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000002431 hydrogen Chemical group 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004299 exfoliation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 125000002339 acetoacetyl group Chemical group O=C([*])C([H])([H])C(=O)C([H])([H])[H] 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- DQHILPAWOOYSNZ-UHFFFAOYSA-N azetidine Chemical group N1CCC1.N1CCC1 DQHILPAWOOYSNZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 150000001925 cycloalkenes Chemical class 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000007601 warm air drying Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/028—Polyamidoamines
-
- 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
- C09J179/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
-
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1057—Polyimides containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain
- C08G73/1064—Polyimides containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain containing sulfur
-
- 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
- C09J177/00—Adhesives based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Adhesives based on derivatives of such polymers
- C09J177/06—Polyamides derived from polyamines and polycarboxylic acids
-
- 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
- C09J179/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
- C09J179/02—Polyamines
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polarising Elements (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to an adhesive composition containing a compound having an azetidinium functional group, and an optical film and a polarizer both containing an adhesive layer formed using the adhesive composition.
Description
Technical field
The blooming that the invention provides a kind of binder composition and use this binder composition.More particularly, the blooming that the invention provides a kind of binder composition and use this binder composition, described binder composition have excellent bond properties and can be used in the blooming that needs the transparency.
The application requires the right of priority of the korean patent application 10-2008-0032563 that submits to from April 8th, 2008 to Korea S Department of Intellectual Property, and its disclosed full content is incorporated this paper by reference into.
Background technology
Usually, polarization plates has following structure: wherein on the both sides of the polaroid (polarizing coating) of polyvinyl alcohol (PVA) composition by using the aqueous adhesive that is formed by the aqueous solution based on PVA to carry out lamination triacetyl cellulose (hereinafter, being called TAC) film (Fig. 1).If in the situation that do not have independent compensate film to use the polarization plates with said structure can make visual angle deteriorated.Therefore, sometimes use zero-lag TAC (hereinafter, being called Z-TAC) film to replace a kind of in two kinds of TAC films, occur hardly to postpone in thickness direction retardation and face in the Z-TAC film, therefore improved visual angle.
Yet for the moisture of the film for containing the TAC composition, Z-TAC is basically very poor, when life-time service, the problem of the weather resistance that produces because of dimensional change occurred., in order to address this problem, attempted using the film of the composition with high wet fastness and low retardance, for example based on the resin of cycloolefin or based on the resin (acryl-based resin) of acrylate.Especially, for the film that comprises based on the composition of acrylate, known its be favourable aspect optical property, weather resistance and cost.
, when when with the TAC film, as protective membrane, preparing polarization plates,, for the polaroid-bindnig with the PVA composition, mainly use the PVA aqueous adhesive.Simultaneously,, in order to improve bond strength, carry out alkaline purification or corona treatment to the surface of TAC film.Yet, when using acrylate films (acryl film) and PVA aqueous adhesive to prepare polarization plates, be difficult to by with alkaline purification or corona treatment, guaranteeing easily bond strength., for known TAC film,, because by alkaline purification or corona treatment, introduced hydrophilic radical (for example hydroxyl) on the surface of film,, by the hydrogen bonding of the tackiness agent with based on PVA, can easily guarantee bond strength.Yet, even make the surface of acrylate films through corona treatment or Cement Composite Treated by Plasma, because the quantity of the hydrophilic radical of introducing is few, with the hydrogen bonding of tackiness agent based on PVA be inadequate, make the sufficient bond strength between the polaroid that can't guarantee acrylate films and PVA composition.
In order to adhere to acrylate films and polaroid, can use the UV curable adhesive based on acrylate, but alleged occurrence following point: (1) is in the polarization plates preparation technology of routine, because use aqueous adhesive, in the situation that use the UV curable adhesive, need independent UV program curing, and because use, have volatile flammable monomer, explosion-proof equipment that need to be extra; (2) thickness of known PVA aqueous adhesive can be made in 100nm by controlling solids content and process management, but be difficult to will be based on the gauge control of the UV curable adhesive of acrylate at 1nm with interior or lower, make the problem that the polarization plates fracture can occur along with the increase of the brittleness of binder layer; And (3) can easily realize bonding with acrylate films, but be not easy to guarantee the bond strength with polaroid., in order to guarantee and the bond strength of polaroid, can comprise a large amount of acid-reaction groups, but in view of the technique corrosion that is caused by acid and operating environment, this not preferred.
Therefore, in order preparing, to use the polarization plates of acrylate films as the protective membrane of polaroid, to use that to can be used in already known processes and the aqueous adhesive of stable polarization plates performance can relatively easily be provided be favourable.Therefore, need to develop the aqueous adhesive that is more suitable for polarization plates and blooming.
Summary of the invention
An object of the present invention is to provide a kind of binder composition, this binder composition has excellent bond properties and can not reduce optical property and the weather resistance of blooming when it is used to blooming.Especially, when using acrylate films as the protective membrane of polaroid, described binder composition provides excellent bond properties and can not reduce optical property and the weather resistance of the polarization plates of preparation thus polaroid.In addition, an object of the present invention is to provide by using blooming and the polarization plates of described binder combination preparation.
, in order to realize above-mentioned purpose of the present invention, the invention provides a kind of binder composition that represents and comprise the compound that contains azetidine (azetidinium) functional group by following general formula 1:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one in X and Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and ketone group, and X and Y can form by being connected to each other ring,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and cyano group,
A
-For monovalent anion, and
N is 30～7, in 000 scope.
One of at least comprise hydrophilic radical in preferred X and Y.The weight-average molecular weight of the compound of preferred formula 1 expression is 10,000～2, in 000,000 scope.
In addition, the invention provides and have the blooming that comprises two-layer above laminate structure, described blooming comprises binder layer, this binder layer is by using binder composition to form at least one interface between described film, and described binder composition comprises the compound that contains azetidine functional group.
In addition, the invention provides the polarization plates with laminate structure, the first film, polaroid and the second film stratification successively wherein, described polarization plates comprises binder layer, and this binder layer comprises by use the compound that contains azetidine functional group one of at least and between polaroid in described the first film and the second film binder composition forms.
In addition, the invention provides the electron device that comprises described blooming or polarization plates.
Because binder composition according to the present invention has excellent bond properties, and in the transparency that does not reduce blooming, can be applied to have in the already known processes of blooming of laminate structure and not need extra technique and device, therefore, it can be for the preparation of blooming.In addition, comprise by the blooming that uses the binder layer for preparing according to binder composition of the present invention and have excellent weather resistance.Especially, when using acrylate films as the protective membrane of polaroid, described binder composition provides excellent bond properties and can not reduce optical property and the weather resistance of the polarization plates of preparation thus polaroid.
Description of drawings
Fig. 1 has illustrated the structure of known polarization plate;
Fig. 2 has illustrated the structure according to the polarization plates of an embodiment of the invention;
Fig. 3 has illustrated the structure according to the polarization plates of an embodiment of the invention; And
Fig. 4 is that the figure of evaluation method is peeled off in explanation for the scratch of estimating bond strength.
Embodiment
Blooming according to the present invention is characterised in that, described blooming comprises that described binder composition comprises the compound that contains azetidine functional group by the binder layer that uses binder composition to form.
The described compound that contains azetidine functional group can react by azetidine functional group and the lip-deep functional group of blooming (for example carboxyl), and described compound has just (+) electric charge.Therefore, described compound has excellent wetting properties to the blooming that has hydrophilic radical through corona treatment and Cement Composite Treated by Plasma etc. on its surface or be rich in negative (-) electric charge.In addition,, by the open loop of azetidine functional group, can form hydrophilic radical, and described hydrophilic radical can be the hydrogen of the hydroxy combining on the surface with at described blooming (for example polaroid).To this, except azetidine functional group, the described compound that contains azetidine functional group can further comprise hydrophilic radical, such as hydroxyl, carboxyl, amido, amide group etc.Based on same reason, to compare with known tackiness agent (for example based on PVA tackiness agent), the compound that contains azetidine functional group can provide excellent bond properties.In addition, can carry out self-crosslinking because contain the compound of azetidine functional group in binder layer, improve the water tolerance of binder layer, made blooming and use the weather resistance of the polarization plates of this blooming to improve, therefore prevented peeling off between film under severe rugged environment.
, as the compound that contains azetidine functional group, can use the compound by following general formula 1 expression:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one in X and Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and ketone group, and X and Y can form by being connected to each other ring,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and cyano group,
A
-For monovalent anion, and
N is 30～7, in 000 scope.
One of at least comprise hydrophilic radical in preferred X and Y.The weight-average molecular weight of the compound of preferred formula 1 expression is 10,000～2, in 000,000 scope.
The compound of described general formula 1 expression comprises the compound by following general formula 2 expressions.
[general formula 2]
Wherein, X ', X " and the Y ' C that respectively does for oneself
1～C
20Aliphatic hydrocarbyl,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and cyano group,
A
-For monovalent anion, and
N is 30～7, in 000 scope.
The compound of described general formula 2 expressions comprises by the polyaminoamide-Epicholorohydrin (polyaminoamide-epichlorohydrin) with following formula 3 expressions (PAE):
[formula 3]
Wherein, n is 30～7, in 000 scope.
Can further comprise solvent according to binder composition of the present invention, for example be used to form the water of binder layer.At this moment, contain the concentration of compound of azetidine functional group in the scope of 0.1～30wt%, and preferred in the scope of 0.5～10wt%.According to the pH value of binder composition of the present invention in 2～11 scope, and more preferably in 4～10 scope.Can control pH value according to binder composition of the present invention by the method with adding therein alkali etc.Kind to described alkali has no particular limits, but its preferred example comprises NaOH, KOH, NH
4OH etc.
Can further comprise resin based on polyvinyl alcohol (PVA) according to binder composition of the present invention., by further comprising the resin based on polyvinyl alcohol, can further improve the bond properties with blooming polaroid or the TAC film of polyvinyl alcohol (for example based on).Especially, use the Modified PVA comprise acetoacetyl etc. to bond properties and with the crosslinked of the compound that contains azetidine functional group be useful.As concrete example, can use the Chemical by Japan Synthetic, Co., Gohsefimer (trade mark) Z-100 that Ltd. produces, Z-200, Z-200H, Z-210, Z-220, Z-320 etc., but be not limited to this.Simultaneously, the weight ratio of the resin based on polyvinyl alcohol is had no particular limits, according to the kind of the film that will adhere to, can change a little its scope.For example, when will be based on the polaroid of polyvinyl alcohol with when adhering to each other based on the film of acrylate,, based on the compound that contains azetidine functional group of 100 weight parts, preferred use amount based on the resin of polyvinyl alcohol in the scope of 10 weight parts～1,000 weight part.When the amount of the resin based on polyvinyl alcohol during less than 10 weight part,, to the bond strength variation of polyvinyl alcohol polarizer or TAC film, when its content, during greater than 1,000 weight part, can there is the problem to the bond strength variation of acrylate films.
The invention provides a kind of blooming, this blooming has wherein makes the structure with two stratification of the film with upper strata, and comprise and draw together binder layer, this binder layer comprises the binder composition formation of the compound that contains azetidine functional group by use at least one interface between described film.In the present invention, described blooming just refers to carry out the film of optical function, and comprise from say narrowly transmittance at the transparent film more than 80% and transmittance at any blooming below 50%, just passable as long as described film is carried out specific optical function (as polarization plates).
Layered film is had no particular limits, but can use film based on acrylate, PET film, the PET film of especially through the primary coat based on acrylate, processing, TAC film, COP film, PC (polycarbonate) film, based on the film of PNB (polynorbornene) etc.Especially, with using the known tackiness agent based on polyvinyl alcohol, compare, when using acrylate films and pass through the PET film of processing based on the primary coat of acrylate, can greatly improve bond strength.Layered film can be by identical material or different material preparations.
If necessary,, in order to improve bond strength, can carry out surface treatment to layered film.For example, can carry out alkaline purification, corona treatment, Cement Composite Treated by Plasma, primary coat processing etc.
In addition, the invention provides a kind of polarization plates, this polarization plates has wherein the first film, polaroid and the second film structure of stratification successively, and comprise and draw together binder layer, this binder layer comprises by use the compound that contains azetidine functional group one of at least and between polaroid in the first film and the second film binder composition forms.At this moment, described the first film or the second film can carry out surface treatment as above.
, as described the first film and the second film, can use film based on acrylate, PET film, the PET film of especially through the primary coat based on acrylate, processing, TAC film, COP film, PC (polycarbonate) film, based on the film of PNB (polynorbornene) etc.Described the first film and the second film can or can be prepared by different materials by identical material preparation.For example, described the first film and the second film can be all based on the film of acrylate or TAC film (Fig. 2), or any among them can be based on the film of acrylate and another can be TAC film (Fig. 3).
By using binder composition according to the present invention to form described binder layer, more particularly, by directly apply then dry adhesive layer of described binder composition on described film, perhaps by the described binder composition of coating between two above films and use pressure roller, roll then dry adhesive layer, thereby form binder layer.The thickness of described binder layer is preferably in the scope of 10～500nm, and more preferably in the scope of 20～200nm.
Preferably according to the transmittance of polarization plates of the present invention in 35～45% scope and degree of polarization more than 98.
Light transmission due to the excellence of the binder composition that comprises the compound that contains azetidine functional group, can keep excellent optical property and not reduce the transmittance of the optical articles that makes according to optical articles of the present invention (such as blooming and polarization plates etc.), and, due to the bond strength of excellence, can improve the weather resistance of the optical articles that makes.
Especially, when described binder composition is applied to polarization plates, because in the situation that there is no the variation of independent processing condition, the variation of the optical property of the polaroid that is caused by described binder composition (for example, transparence, degree of polarization and color etc.) almost identical with the situation of using the known tackiness agent based on polyvinyl alcohol, so it can be used for large production line alternatively.
The invention provides a kind of electron device, it comprises blooming or polarization plates.As described electron device, liquid crystal display device etc. is arranged.Yet, the kind of described electron device is had no particular limits, as long as it needs blooming or polarization plates just passable.Except described electron device comprises that above-mentioned electron device has identical structure with electron device as known in the art by the binder layer of use according to binder composition formation of the present invention.For example, described electron device can be liquid crystal display device, and it comprises: liquid crystal cell; According to polarization plates of the present invention, it is arranged on the both sides of described liquid crystal cell; And back light unit.
Hereinafter, describe the present invention in detail with reference to embodiment.Yet the present invention can embody and should not be construed as the embodiment that only limits to propose here in multiple different mode.On the contrary, providing these embodiment is in order to those skilled in the art, intactly to pass on concept of the present invention.
Embodiment
Embodiment 1
By dilute Kymene-557H (compound that contains azetidine group and amido) (Hercules Korea with pure water, the 12.5wt% aqueous solution) aqueous solution of preparation 6wt%, and use this solution to adhere on the both sides of polaroid through the film based on acrylate of corona treatment.For described film based on acrylate, use by OPTES, Co., Ltd. produces and thickness is the T-film of 80 μ m.Make the surface of described film at 50W/m
2Process corona treatment under/min condition.Polaroid and its both sides based on the film of acrylate between inject described tackiness agent, roll with pressure roller, and used warm air drying 5 minutes at 80 ℃ of temperature, thereby make polarization plates.
Embodiment 2
Adding the NaOH aqueous solution to make Kymene-557H (Hercules Korea, the 12.5wt% aqueous solution, pH=5) pH value is after 7, use, with the binder composition of pure water with the 6wt% of its dilution preparation, will adhere on the both sides of polaroid through the film based on acrylate of corona treatment.
Embodiment 3
Use the binder composition of embodiment 2, will adhere on a side of polaroid through the film based on acrylate of corona treatment, and will adhere on the opposite side of this polaroid through the TAC film of alkaline purification.
Embodiment 4
Kymene-557H (Hercules Korea based on 100 weight parts, 12.5wt%), modified polyvinyl alcohol resin Gohsefimer Z-200 (the Japan Synthetic Chemical that adds 100 weight parts, Co., Ltd.), adding the NaOH aqueous solution to make its pH value is 7, use is with 4.5% the binder composition of pure water with its dilution preparation, to adhere on a side of polaroid through the film based on acrylate of corona treatment, and will adhere on the opposite side of this polaroid through the TAC film of alkaline purification.
The comparative example 1
Polyvinyl alcohol water solution by polyethylene dissolving alcohol resin in pure water (mean polymerisation degree 2400, saponification deg 99.9%) preparation 3wt%.Use this solution, will adhere on the both sides of polaroid through the film based on acrylate of corona treatment.
The comparative example 2
By dissolve modified polyvinyl alcohol resin Gohsefimer Z-200 (Japan SyntheticChemical in pure water, Co., Ltd.) the modified polyvinyl alcohol aqueous solution of preparation 4.5wt%, and the modified polyvinyl alcohol based on 100 weight parts, add wherein the linking agent of the metallic compound based on amine of 10 weight parts, thereby prepare tackiness agent.Use this tackiness agent, will adhere on the both sides of polaroid through the film based on acrylate of corona treatment.
The comparative example 3
Use comparative example 2 tackiness agent, will adhere on a side of polaroid through the film based on acrylate of corona treatment, and will adhere on the opposite side of this polaroid through the TAC film of alkaline purification.
Evaluation method
1. bond strength
After forming scratch on the surface of polarization plates, with percentage ratio, show scratch extent of exfoliation (Fig. 4) on every side with cutting edge, when this value was low, bond strength was excellent.
2. water tolerance
Use pressure sensitive adhesive that one side of polarization plates is adhered on sheet glass, it is immersed in the thermostatic bath that keeps 60 ℃ of temperature, and after 4 hours and 48 hours, according to the contraction of polaroid and the extent of exfoliation of protective membrane, estimate water tolerance.
3. optical property
Use monomer transmittance (Ts), the rectilinear transmittance (Tp) of spectrophotometer measurement polarization plates and the transmittance (Tc) that intersects, and use following formula to calculate degree of polarization.
(formula 1) degree of polarization (P)=√ (Tp-Tc)/(Tp+Tc)
Evaluation result
The evaluation result of the bond strength of [table 1] polarization plates, water tolerance and optical property
* A: acrylate films
＊K1：6wt％Kymene-557H(pH＝5)
＊K2：6wt％Kymene-557H(pH＝7)
＊K3：4.5wt％Kymene-557H∶Z200＝1∶1(pH＝7)
＊P1：3％PVA
* P2:4.5%Z200: linking agent=10: 1
Claims (5)
1. blooming, it has and comprises two-layer above laminate structure, and this blooming comprises:
Binder layer, this binder layer comprise based on the resin of polyvinyl alcohol and the binder composition that is used for blooming of the compound that contains azetidine functional group and form by use at least one interface between described film,
Wherein, the described compound that the contains azetidine functional group compound of following general formula 1 expression of serving as reasons:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one in X and Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and ketone group, and X and Y can form by being connected to each other ring,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and cyano group,
A
-For monovalent anion, and
N is 30～7, in 000 scope.
2. blooming according to claim 1, wherein, the compound of described general formula 1 expression is the compound of following general formula 2 expressions:
[general formula 2]
Wherein, X ', X ' ' and the Y ' C that respectively does for oneself
1～C
20Aliphatic hydrocarbyl,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and cyano group,
A
-For monovalent anion, and
N is 30～7, in 000 scope.
3. blooming according to claim 2, wherein, the compound of described general formula 2 expressions be the compound that represents with following formula 3:
[formula 3]
Wherein, n is 30～7, in 000 scope.
4. blooming according to claim 1, wherein, described film at least a be selected from film based on acrylate, PET film, in PET film, TAC film, COP film, PC (polycarbonate) film and the film based on PNB (polynorbornene) processed through the primary coat based on acrylate.
5. blooming according to claim 1, wherein, make at least one side of at least a described film through being selected from one or more surface treatments in alkaline purification, corona treatment, Cement Composite Treated by Plasma and primary coat processing.
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| KR20080032563 | 2008-04-08 | ||
| KR10-2008-0032563 | 2008-04-08 | ||
| PCT/KR2009/001818 WO2009125980A2 (en) | 2008-04-08 | 2009-04-08 | Adhesive composition and optical film using the same |
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| KR20120032195A (en) * | 2010-09-28 | 2012-04-05 | 동우 화인켐 주식회사 | A polarizing plate and liquid crystal display comprising the same |
| MY168781A (en) * | 2012-06-14 | 2018-12-04 | Alcon Inc | Azetidinium-containing copolymers and uses thereof |
| KR102246299B1 (en) * | 2019-03-12 | 2021-04-29 | 주식회사 온빛 | The manufacturing method of high-refraction polarizing lens |
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- 2009-04-08 JP JP2011503906A patent/JP5446015B2/en active Active
- 2009-04-08 WO PCT/KR2009/001818 patent/WO2009125980A2/en active Application Filing
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| Publication number | Publication date |
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| TWI386472B (en) | 2013-02-21 |
| WO2009125980A2 (en) | 2009-10-15 |
| JP5446015B2 (en) | 2014-03-19 |
| KR20090107444A (en) | 2009-10-13 |
| CN102015954A (en) | 2011-04-13 |
| JP2011519982A (en) | 2011-07-14 |
| KR101057628B1 (en) | 2011-08-19 |
| CN103396756A (en) | 2013-11-20 |
| CN103396756B (en) | 2015-01-21 |
| WO2009125980A3 (en) | 2010-01-14 |
| TW201000582A (en) | 2010-01-01 |
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