CN103396756B - Adhesive composition and optical film using same - Google Patents
Adhesive composition and optical film using same Download PDFInfo
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- CN103396756B CN103396756B CN201310282606.4A CN201310282606A CN103396756B CN 103396756 B CN103396756 B CN 103396756B CN 201310282606 A CN201310282606 A CN 201310282606A CN 103396756 B CN103396756 B CN 103396756B
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- polaroid
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- 239000000203 mixture Substances 0.000 title claims abstract description 47
- 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 32
- 239000011230 binding agent Substances 0.000 claims description 58
- 230000010287 polarization Effects 0.000 claims description 45
- 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 20
- 238000003851 corona treatment Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 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
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 238000013517 stratification Methods 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 2
- HONIICLYMWZJFZ-UHFFFAOYSA-N azetidine Chemical group C1CNC1 HONIICLYMWZJFZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 21
- 230000003287 optical effect Effects 0.000 description 13
- 239000003795 chemical substances by application Substances 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
- 239000012528 membrane Substances 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 6
- 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
- -1 acryl Chemical group 0.000 description 3
- 150000002431 hydrogen Chemical group 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000004299 exfoliation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 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
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 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
- 230000006866 deterioration Effects 0.000 description 1
- 238000007865 diluting Methods 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
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 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
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
Abstract
The 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
The application is the applying date is on April 8th, 2009, application number be 200980116123.9 and denomination of invention be the divisional application of the application for a patent for invention of " binder composition and use the blooming of this binder composition ".
Technical field
The invention provides a kind of binder composition and use the blooming of this binder composition.More particularly, the invention provides a kind of binder composition and use the blooming of this binder composition, described binder composition has excellent bond properties and can be used in needing in the blooming of the transparency.
This application claims the right of priority of the korean patent application 10-2008-0032563 submitted on April 8th, 2008 to Korean Intellectual Property Office, full content disclosed in it is incorporated to herein by reference.
Background technology
Usually, polarization plates has following structure: the aqueous adhesive be wherein made up of the aqueous solution based on PVA use on the both sides of the polaroid (polarizing coating) of polyvinyl alcohol (PVA) composition carrys out lamination triacetyl cellulose (hereafter, being called TAC) film (Fig. 1).If use the polarization plates with said structure can make visual angle deterioration when there is no independent compensate film.Therefore, TAC (hereafter, the being called Z-TAC) film of use zero-lag sometimes replaces the one in two kinds of TAC films, occurs hardly to postpone in thickness direction retardation and face, therefore improve visual angle in Z-TAC film.
But for the moisture for the film containing TAC composition, Z-TAC is substantially very poor, when used over time, there is the problem of the weather resistance produced because of dimensional change.In order to address this problem, attempt the film using the composition with high wet fastness and low retardance, such as, based on the resin of cycloolefin or the resin (acryl-based resin) based on acrylate.Especially, for the film of the composition comprised based on acrylate, known its be favourable in optical property, weather resistance and cost.
When by using TAC film to prepare polarization plates as protective membrane, in order to the polaroid-bindnig with PVA composition, mainly use PVA aqueous adhesive.Meanwhile, in order to improve bond strength, alkaline purification or corona treatment to be carried out to the surface of TAC film.But, when using acrylate films (acryl film) and PVA aqueous adhesive prepares polarization plates, be difficult to by using alkaline purification or corona treatment to ensure bond strength easily.For known TAC film, because introduce hydrophilic radical (such as hydroxyl) by alkaline purification or corona treatment on the surface of film, by the hydrogen bonding with the tackiness agent based on PVA, easily bond strength can be ensured.But, even if make the surface of acrylate films through corona treatment or Cement Composite Treated by Plasma, because the quantity of the hydrophilic radical introduced is few, be insufficient with the hydrogen bonding of the tackiness agent based on PVA, make the sufficient bond strength that cannot ensure between the polaroid of acrylate films and PVA composition.
In order to adhere to acrylate films and polaroid, the UV curable adhesive based on acrylate can be used, but alleged occurrence following point: (1) is in the polarization plates preparation technology of routine, because use aqueous adhesive, in case a uv curable adhesive is used, need independent UV program curing, and because use, there is volatile flammable monomer, need extra explosion-proof equipment; (2) within the thickness of known PVA aqueous adhesive can being made 100nm by control solids content and process management, but be difficult to the gauge control of the UV curable adhesive based on acrylate within 1nm or lower, make the increase along with the brittleness of binder layer that the problem of polarization plates fracture can occur; And (3) easily can realize the bonding with acrylate films, but be not easy to ensure the bond strength with polaroid.In order to ensure the bond strength with polaroid, a large amount of acid-reaction groups can be comprised, but in view of the technique corrosion caused by acid and operating environment, this not preferred.
Therefore, using acrylate films as the polarization plates of the protective membrane of polaroid to prepare, using and can be used in already known processes and can relatively easily provide the aqueous adhesive of stable polarization plates performance to be favourable.Therefore, need to develop the aqueous adhesive being 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 the protective membrane using acrylate films as polaroid, described binder composition provides excellent bond properties to polaroid and can not reduce optical property and the weather resistance of the polarization plates prepared thus.In addition, an object of the present invention is to provide the blooming by using described binder combination to prepare and polarization plates.
In order to realize above-mentioned purpose of the present invention, the invention provides one and represented by following general formula 1 and comprise the binder composition of the compound containing azetidine (azetidinium) functional group:
[general formula 1]
Wherein, X and Y is aliphatic hydrocarbyl, and at least one in X and Y is comprise the one or more aliphatic hydrocarbyl from amido, amide group and ketone group, and X and Y is by the formation ring that is connected to each other,
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 30 ~ 7, in the scope of 000.
One of at least hydrophilic radical is comprised in preferred X and Y.The weight-average molecular weight of compound that preferred formula 1 represents 10,000 ~ 2,000, in the scope of 000.
In addition, the invention provides the blooming having and comprise two-layer above laminate structure, described blooming comprises binder layer, by using binder composition to be formed on this binder layer at least one interface between described film, described binder composition comprises the compound containing azetidine functional group.
In addition, the invention provides the polarization plates with laminate structure, wherein the first film, polaroid and the second film stratification successively, described polarization plates comprises binder layer, this binder layer in described first film and the second film one of at least and between polaroid by using the binder composition of the compound comprised containing azetidine functional group to be formed.
In addition, the invention provides the electron device comprising described blooming or polarization plates.
Because binder composition according to the present invention has excellent bond properties, and while the transparency not reducing blooming, can be applied in the already known processes of the blooming with laminate structure and not need extra technique and device, therefore, it may be used for preparing blooming.In addition, the blooming of the binder layer comprised by using binder composition according to the present invention to prepare has excellent weather resistance.Especially, when the protective membrane using acrylate films as polaroid, described binder composition provides excellent bond properties to polaroid and can not reduce optical property and the weather resistance of the polarization plates prepared thus.
Accompanying drawing explanation
Fig. 1 describes the structure of known polarization plate;
Fig. 2 describes the structure of the polarization plates according to an embodiment of the invention;
Fig. 3 describes the structure of the polarization plates according to an embodiment of the invention; And
Fig. 4 illustrates that the scratch for evaluating bond strength peels off the figure of evaluation method.
Embodiment
Feature according to blooming of the present invention is, described blooming comprises the binder layer by using binder composition to be formed, and described binder composition comprises the compound containing azetidine functional group.
The described compound containing azetidine functional group reacts by the functional group's (such as carboxyl) in azetidine functional group and blooming surface, and described compound has just (+) electric charge.Therefore, described compound has excellent wetting properties to the blooming having 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, hydrophilic radical can be formed, and described hydrophilic radical can be the hydrogen with the hydroxy combining on the surface at described blooming (such as polaroid).To this, except azetidine functional group, the described compound containing azetidine functional group can comprise hydrophilic radical, such as hydroxyl, carboxyl, amido, amide group etc. further.Based on same reason, compared with known tackiness agent (such as based on the tackiness agent of PVA), the compound containing azetidine functional group can provide excellent bond properties.In addition, because the compound containing azetidine functional group can carry out self-crosslinking within the adhesive layer, improve the water tolerance of binder layer, make blooming and use the weather resistance of the polarization plates of this blooming to improve, therefore prevent the stripping between film under severe rugged environment.
As the compound containing azetidine functional group, the compound represented by following general formula 1 can be used:
[general formula 1]
Wherein, X and Y is aliphatic hydrocarbyl, and at least one in X and Y is comprise the one or more aliphatic hydrocarbyl from amido, amide group and ketone group, and X and Y is by the formation ring that is connected to each other,
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 30 ~ 7, in the scope of 000.
One of at least hydrophilic radical is comprised in preferred X and Y.The weight-average molecular weight of compound that preferred formula 1 represents 10,000 ~ 2,000, in the scope of 000.
The compound that described general formula 1 represents comprises the compound represented by following general formula 2.
[general formula 2]
Wherein, X ', X ' ' and Y ' are C separately
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 30 ~ 7, in the scope of 000.
The compound that described general formula 2 represents comprises by the polyaminoamide epichlorohydrin represented with following formula 3 (polyaminoamide-epichlorohydrin) (PAE):
[formula 3]
Wherein, n 30 ~ 7, in the scope of 000.
Solvent can be comprised further, such as, for the formation of the water of binder layer according to binder composition of the present invention.Now, the concentration of the compound containing azetidine functional group in the scope of 0.1 ~ 30wt%, and preferably in the scope of 0.5 ~ 10wt%.According to the pH value of binder composition of the present invention in the scope of 2 ~ 11, and more preferably in the scope of 4 ~ 10.Can by being used in the pH value that the method wherein adding alkali etc. controls according to binder composition of the present invention.The kind of described alkali is had no particular limits, but its preferred example comprises NaOH, KOH, NH
4oH etc.
The resin based on polyvinyl alcohol (PVA) can be comprised further according to binder composition of the present invention.By comprising the resin based on polyvinyl alcohol further, the bond properties with blooming (such as based on polaroid or the TAC film of polyvinyl alcohol) can be improved further.Especially, the Modified PVA comprising acetoacetyl etc. is used to be useful to bond properties and with the crosslinked of the compound containing azetidine functional group.As concrete example, can use by Japan Synthetic Chemical, Gohsefimer (trade mark) Z-100, Z-200, Z-200H, Z-210, Z-220, Z-320 etc. that Co., Ltd. produces, but be not limited thereto., have no particular limits the weight ratio of the resin based on polyvinyl alcohol, the kind according to the film that will adhere to can change its scope a little meanwhile.Such as, when the polaroid based on polyvinyl alcohol and the film based on acrylate are adhering to each other, based on 100 weight parts containing the compound of azetidine functional group, preferably use amount based on the resin of polyvinyl alcohol in 10 weight part ~ 1, in the scope of 000 weight part.When the amount of the resin based on polyvinyl alcohol is less than 10 weight part, the bond strength of polyvinyl alcohol polarization element or TAC film is deteriorated, when its content is greater than 1, during 000 weight part, the problem that the bond strength of acrylate films is deteriorated can be there is.
The invention provides a kind of blooming, this blooming has the structure of the film stratification wherein making to have two or more layer, and comprise and draw together binder layer, by using the binder composition of the compound comprised containing azetidine functional group to be formed on this binder layer at least one interface between described film.In the present invention, described blooming just refers to the film performing optical function, and comprise from saying the transparent film of transmittance more than 80% and any blooming of transmittance below 50% in the narrow sense, as long as to perform specific optical function (as polarization plates) just passable for described film.
Layered film is had no particular limits, but can use based on the film of acrylate, PET film, the PET film of especially passing through the primary coat process based on acrylate, TAC film, COP film, PC (polycarbonate) film, film etc. based on PNB (polynorbornene).Especially, and use compared with the known tackiness agent based on polyvinyl alcohol, when using acrylate films and through the PET film based on the primary coat process of acrylate, greatly can improving bond strength.Layered film can be prepared by identical material or different materials.
If needed, in order to improve bond strength, surface treatment can be carried out to layered film.Such as, alkaline purification, corona treatment, Cement Composite Treated by Plasma, primary coat process etc. can be carried out.
In addition, the invention provides a kind of polarization plates, this polarization plates has the structure of wherein the first film, polaroid and the second film stratification successively, and comprise and draw together binder layer, this binder layer in the first film and the second film one of at least and between polaroid by using the binder composition of the compound comprised containing azetidine functional group to be formed.Now, described first film or the second film can carry out surface treatment as above.
As described first film and the second film, can use based on the film of acrylate, PET film, the PET film of especially passing through the primary coat process based on acrylate, TAC film, COP film, PC (polycarbonate) film, film etc. based on PNB (polynorbornene).Described first film can be prepared by identical material with the second film or can be prepared by different materials.Such as, described first film and the second film can be all film based on acrylate or TAC film (Fig. 2), or any one among them can be the film based on acrylate and another can be TAC film (Fig. 3).
Described binder layer is formed by using binder composition according to the present invention, more particularly, by directly applying described binder composition then dry adhesion oxidant layer on the membrane, or by applying described binder composition and use pressure roller to roll then dry adhesion oxidant layer between two or more film, thus form binder layer.The thickness of described binder layer 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 the scope of 35 ~ 45% and degree of polarization more than 98.
Owing to comprising the light transmission of the excellence of the binder composition of the compound containing azetidine functional group, excellent optical property can be kept according to optical articles of the present invention (such as blooming and polarization plates etc.) and not reduce the transmittance of obtained optical articles, and due to the bond strength of excellence, the weather resistance of obtained optical articles can be improved.
Especially, when described binder composition is applied to polarization plates, because when there is no the change of independent processing condition, the change of the optical property of the polaroid caused by described binder composition (such as, transparence, degree of polarization and color etc.) almost identical with using the situation of the known tackiness agent based on polyvinyl alcohol, so it can alternatively for large production line.
The invention provides a kind of electron device, it comprises blooming or polarization plates.As described electron device, there is liquid crystal display device etc.But, 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 the binder layer by using binder composition according to the present invention to be formed, above-mentioned electron device has identical structure with electron device as known in the art.Such as, 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, the present invention is described in detail with reference to embodiment.But the present invention can embody in a number of different manners and should not be construed as the embodiment being only limitted to propose here.On the contrary, these embodiments are provided to be to intactly pass on concept of the present invention to those skilled in the art.
Embodiment
Embodiment 1
By diluting Kymene-557H (compound containing azetidine group and amido) (Hercules Korea with pure water, the 12.5wt% aqueous solution) prepare the aqueous solution of 6wt%, and use this solution to be adhered on the both sides of polaroid by the film based on acrylate through corona treatment.For the described film based on acrylate, use by OPTES, Co., Ltd. produces and thickness is the T-film of 80 μm.Make the surface of described film at 50W/m
2through corona treatment under/min condition.Between polaroid and the film based on acrylate of its both sides, inject described tackiness agent, roll with pressure roller, and at 80 DEG C of temperature, use warm air drying 5 minutes, thus obtained polarization plates.
Embodiment 2
Make Kymene-557H (Hercules Korea adding the NaOH aqueous solution, the 12.5wt% aqueous solution, pH=5) pH value is after 7, use pure water is diluted the binder composition of the 6wt% of preparation, is adhered on the both sides of polaroid by the film based on acrylate through corona treatment.
Embodiment 3
Use the binder composition of embodiment 2, the film based on acrylate through corona treatment is adhered on the side of polaroid, and the TAC film through alkaline purification is adhered on the opposite side of this polaroid.
Embodiment 4
Based on Kymene-557H (the Hercules Korea of 100 weight parts, 12.5wt%), add modified polyvinyl alcohol resin Gohsefimer Z-200 (the Japan Synthetic Chemical of 100 weight parts, Co., Ltd.), adding the NaOH aqueous solution makes its pH value be 7, use pure water is diluted the binder composition of 4.5% of preparation, the film based on acrylate through corona treatment is adhered on the side of polaroid, and the TAC film through alkaline purification is adhered on the opposite side of this polaroid.
Comparative example 1
The polyvinyl alcohol water solution of 3wt% is prepared by polyethylene dissolving alcohol resin in pure water (mean polymerisation degree 2400, saponification deg 99.9%).Use this solution, the film based on acrylate through corona treatment is adhered on the both sides of polaroid.
Comparative example 2
By dissolving modified polyvinyl alcohol resin Gohsefimer Z-200 (Japan Synthetic Chemical in pure water, Co., Ltd.) the modified polyvinyl alcohol aqueous solution of 4.5wt% is prepared, and based on the modified polyvinyl alcohol of 100 weight parts, add the metallic compound linking agent based on amine of 10 weight parts wherein, thus prepare tackiness agent.Use this tackiness agent, the film based on acrylate through corona treatment is adhered on the both sides of polaroid.
Comparative example 3
Use the tackiness agent of comparative example 2, the film based on acrylate through corona treatment is adhered on the side of polaroid, and the TAC film through alkaline purification is adhered on the opposite side of this polaroid.
Evaluation method
1. bond strength
After forming scratch with cutting edge on the surface of polarization plates, with the extent of exfoliation (Fig. 4) around percentage ratio display scratch, when this value is lower, bond strength is excellent.
2. water tolerance
Use pressure sensitive adhesive to adhere on sheet glass by the side of polarization plates, be immersed in the thermostatic bath of maintenance 60 DEG C of temperature, and after 4 hours and 48 hours, evaluate water tolerance according to the contraction of polaroid and the extent of exfoliation of protective membrane.
3. optical property
Use the unitary light transmissive rate (Ts) of spectrophotometer measurement polarization plates, rectilinear transmittance (Tp) and cross transmittance (Tc), and use following formulae discovery 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 (6)
1. a polarization plates, it has the laminate structure of wherein the first film, polaroid and the second film stratification successively, and this polarization plates comprises:
Binder layer, this binder layer is formed based on the resin of polyvinyl alcohol and the binder composition for blooming of the compound that contains azetidine functional group by using to comprise one of at least and between polaroid in described first film and the second film,
Wherein, the described compound containing azetidine functional group is the compound represented by following general formula 1:
[general formula 1]
Wherein, X and Y is aliphatic hydrocarbyl, and at least one in X and Y is comprise the one or more aliphatic hydrocarbyl from amido, amide group and ketone group, and X and Y is by the formation ring that is connected to each other,
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 30 ~ 7, in the scope of 000.
2. polarization plates according to claim 1, wherein, the compound that described general formula 1 represents is the compound that following general formula 2 represents:
[general formula 2]
Wherein, X ', X ' ' and Y ' are C separately
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 30 ~ 7, in the scope of 000.
3. polarization plates according to claim 2, wherein, the compound that described general formula 2 represents is the compound represented with following formula 3:
[formula 3]
Wherein, n 30 ~ 7, in the scope of 000.
4. polarization plates according to claim 1, wherein, described first film or the second film be selected from based on the film of acrylate, PET film, through based in the PET film of the primary coat process of acrylate, TAC film, COP film, PC (polycarbonate) film and the film based on PNB (polynorbornene).
5. polarization plates according to claim 1, wherein, makes one or more surface treatments through being selected from alkaline purification, corona treatment, Cement Composite Treated by Plasma and primary coat process of at least side of described first film or the second film.
6. an electron device, it comprises:
Polarization plates according to any one of Claims 1 to 5.
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| RU2647728C2 (en) * | 2012-06-14 | 2018-03-19 | Новартис Аг | Azetidinium-containing copolymers and their uses |
| KR102246299B1 (en) * | 2019-03-12 | 2021-04-29 | 주식회사 온빛 | The manufacturing method of high-refraction polarizing lens |
Citations (4)
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| CN85108585A (en) * | 1984-10-18 | 1986-11-19 | 金伯利-克拉克公司 | The creping adhesives that contains polyvinyl alcohol and cationic polyamide resins |
| US6207734B1 (en) * | 1996-05-22 | 2001-03-27 | The Procter & Gamble Company | Creping adhesive for creping tissue paper |
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| CN1734298A (en) * | 2004-08-03 | 2006-02-15 | 捷时雅株式会社 | Polarizing plate and process for producing the same |
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| JPH0345678A (en) * | 1989-07-14 | 1991-02-27 | Kuraray Co Ltd | Adhesive and glass base |
| JP3704786B2 (en) * | 1996-03-18 | 2005-10-12 | 住友化学株式会社 | Polarizer |
| US5865950A (en) * | 1996-05-22 | 1999-02-02 | The Procter & Gamble Company | Process for creping tissue paper |
| ZA983876B (en) * | 1997-05-09 | 1999-01-08 | Procter & Gamble | Pigmented adhesive composition for laminating tissue paper products and methods for producing such compositions |
| US6677427B1 (en) * | 2000-06-13 | 2004-01-13 | Hercules Incorporated | Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same |
| ZA200105884B (en) * | 2000-08-04 | 2002-05-13 | Armstrong World Ind Inc | Fibrous sheet enhancement. |
| JP2004334168A (en) * | 2003-04-16 | 2004-11-25 | Sumitomo Chem Co Ltd | Polarizing plate and its manufacturing method |
| JP2005128294A (en) * | 2003-10-24 | 2005-05-19 | Sumitomo Chemical Co Ltd | Polarizing plate |
| CA2526420C (en) * | 2004-04-20 | 2012-07-03 | The State Of Oregon Acting By And Through The State Board Of Higher Educ Ation On Behalf Of Oregon State University | Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives |
| JP2006235613A (en) * | 2005-01-25 | 2006-09-07 | Sumitomo Chemical Co Ltd | Compound polarizing plate |
| RU2448126C2 (en) * | 2006-08-24 | 2012-04-20 | Геркулес Инкорпорейтед | Adhesive composition of low-molecular weight polyamidoamine-epihalohydrin (pae) resin and protein |
| US7932349B2 (en) * | 2006-09-18 | 2011-04-26 | Hercules Incorporated | Membrane separation process for removing residuals polyamine-epihalohydrin resins |
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| CN85108585A (en) * | 1984-10-18 | 1986-11-19 | 金伯利-克拉克公司 | The creping adhesives that contains polyvinyl alcohol and cationic polyamide resins |
| US6812281B2 (en) * | 1995-05-18 | 2004-11-02 | Fort James Corporation | Crosslinkable creping adhesive formulations |
| US6207734B1 (en) * | 1996-05-22 | 2001-03-27 | The Procter & Gamble Company | Creping adhesive for creping tissue paper |
| CN1734298A (en) * | 2004-08-03 | 2006-02-15 | 捷时雅株式会社 | Polarizing plate and process for producing the same |
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| CN103396756A (en) | 2013-11-20 |
| CN102015954B (en) | 2013-11-13 |
| KR101057628B1 (en) | 2011-08-19 |
| TW201000582A (en) | 2010-01-01 |
| KR20090107444A (en) | 2009-10-13 |
| CN102015954A (en) | 2011-04-13 |
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| TWI386472B (en) | 2013-02-21 |
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