CN105419695A - Application of adhesive composition in preparation of optical thin film and optical member therewith - Google Patents
Application of adhesive composition in preparation of optical thin film and optical member therewith Download PDFInfo
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- CN105419695A CN105419695A CN201510982040.5A CN201510982040A CN105419695A CN 105419695 A CN105419695 A CN 105419695A CN 201510982040 A CN201510982040 A CN 201510982040A CN 105419695 A CN105419695 A CN 105419695A
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- methyl
- acrylate
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- binder composition
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- 239000000203 mixture Substances 0.000 title claims abstract description 28
- 230000003287 optical effect Effects 0.000 title claims abstract description 20
- 239000010409 thin film Substances 0.000 title claims description 13
- 239000000853 adhesive Substances 0.000 title abstract description 13
- 230000001070 adhesive effect Effects 0.000 title abstract description 13
- 238000002360 preparation method Methods 0.000 title description 4
- -1 alkoxyalkyl acrylate Chemical compound 0.000 claims abstract description 22
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 6
- 238000004132 cross linking Methods 0.000 claims abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 5
- 239000012948 isocyanate Substances 0.000 claims abstract description 5
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 5
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 23
- 229920000058 polyacrylate Polymers 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 4
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical group CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 3
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 claims description 2
- DKJBREHOVWISMR-UHFFFAOYSA-N 1-chloro-2,3-diisocyanatobenzene Chemical class ClC1=CC=CC(N=C=O)=C1N=C=O DKJBREHOVWISMR-UHFFFAOYSA-N 0.000 claims description 2
- LDHQCZJRKDOVOX-UHFFFAOYSA-N 2-butenoic acid Chemical group CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 claims description 2
- KBQVDAIIQCXKPI-UHFFFAOYSA-N 3-trimethoxysilylpropyl prop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C=C KBQVDAIIQCXKPI-UHFFFAOYSA-N 0.000 claims description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- TUEIURIZJQRMQE-UHFFFAOYSA-N [2-(tert-butylsulfamoyl)phenyl]boronic acid Chemical compound CC(C)(C)NS(=O)(=O)C1=CC=CC=C1B(O)O TUEIURIZJQRMQE-UHFFFAOYSA-N 0.000 claims description 2
- 239000001530 fumaric acid Substances 0.000 claims description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical group CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- AFCAKJKUYFLYFK-UHFFFAOYSA-N tetrabutyltin Chemical compound CCCC[Sn](CCCC)(CCCC)CCCC AFCAKJKUYFLYFK-UHFFFAOYSA-N 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims description 2
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 claims description 2
- 239000003431 cross linking reagent Substances 0.000 abstract description 2
- 229920002125 Sokalan® Polymers 0.000 abstract 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005187 foaming Methods 0.000 description 5
- 238000005227 gel permeation chromatography Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000012788 optical film Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 208000007578 phototoxic dermatitis Diseases 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 210000002858 crystal cell Anatomy 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241000863032 Trieres Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical group [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- 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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
- C08K5/57—Organo-tin compounds
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
- C08F220/281—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an adhesive composition which is composed of: (A) an acrylic acid polymer being formed through copolymerization of monomers including (a1): 85-95 wt% of (methyl)alkoxyalkyl acrylate, (a2): 0.5-5 wt% of a monomer containing a carboxylic group, and (a3): 1-10 wt% of a monomer containing a hydroxyl group; (B) 0.5-5 parts by weight of an isocyanate crosslinking agent on the basis of 100 parts by weight of the acrylic acid polymer; (C) 0.5-1.0 part by weight of a silane coupling agent on the basis of 100 parts by weight of the acrylic acid polymer; and (D) 0.1-0.5 parts by weight of a crosslinking accelerant on the basis of 100 parts by weight of the acrylic acid polymer. The adhesive composition can be used in optical members.
Description
Technical field
The invention belongs to adhesive material technical field, be specifically related to a kind of binder composition and uses thereof.
Background technology
When attaching described optical thin film on liquid crystal cell, usually tackiness agent can be used.In addition, at optical thin film and liquid crystal cell, during to also have between optical thin film bonding, generally for minimizing light loss, use tackiness agent to adhere to each material.In this case, do not need through advantages such as drying processes when making optical thin film set owing to having, therefore the normally used adhesive optical film being tackiness agent and being arranged on the side of optical thin film as binder layer in advance.
Under the image display device being suitable for the liquid crystal indicator of described adhesive optical film etc. is used in various environment.So described adhesive optical film is hoped to have the weather resistance such as thermotolerance in high temperature environments, wet fastness under high humidity environment.As the method improving this weather resistance, propose the tackiness agent using and be made up of as (methyl) acrylic resin of the copolymerization composition of 0.3 ~ 10 % by weight (methyl) acrylic monomer containing amino and/or amide group, as the tackiness agent between polarized light film and the glass substrate of liquid crystal cells.
On the other hand, in recent years, image display device is hoped slimming, and adhesive optical film is also hoped slimming.Along with the requirement of this slimming, the binder layer of adhesive optical film is also required slimming.But, if slimming binder layer, then become and be difficult to meet weather resistance.Even if when using the tackiness agent recorded in described patent documentation 1 (Japanese) Patent Laid-Publication 6-No. 108025 publications, if binder layer is thinning, also becomes and being difficult to meet weather resistance.
Therefore, need to provide a kind of binder composition for optical thin film, while there is good adhesion, tool heat-resisting, wet fastness in need, and not easily produce bubble, effectively prevent light leak.
Summary of the invention
The object of the present invention is to provide a kind of binder composition, for during optical thin film while there is good adhesion, there is heat-resisting, the wet fastness of raising, and not easily foam, effectively prevent light leak.
Technical scheme of the present invention is as follows:
A kind of binder composition, is characterized in that, be made up of following composition (A), composition (B), composition (C) and composition (D):
(A) the weight-average molecular weight Mw of following monomer component (a1), (a2) and (a3) copolymerization is 2,100,000 ~ 2,500,000, and the molecular weight distribution of multipolymer (Mw/Mn) is the acrylic polymers of 15 ~ 25;
(a1) 85 ~ 95 % by weight (methyl) alkoxyalkyl acrylate, described (methyl) alkoxyalkyl acrylate is selected from (methyl) methoxyethyl acrylate and (methyl) ethoxyethyl acrylate
(a2) the carboxylic monomer of 0.5-5 % by weight, described carboxylic monomer is selected from (methyl) vinylformic acid, toxilic acid, fumaric acid,
(a3) monomer of 1 ~ 10 % by weight hydroxyl, the monomer of described hydroxyl is selected from 2-hydroxyethyl (methyl) acrylate, 4-hydroxybutyl (methyl) acrylate, 2-hydroxypropyl (methyl) acrylate, 2-hydroxybutyl (methyl) acrylate;
(B) relative to 100 parts by weight propylene acids polymers 0.5 ~ 5 weight part isocyanates linking agents;
(C) relative to 100 parts by weight propylene acids polymers 0.5 ~ 1.0 weight part silane coupling agents;
(D) relative to 100 parts by weight propylene acids polymers 0.1 ~ 0.5 weight part crosslinking accelerators.Wherein, described isocyanates linking agent is selected from tolylene diisocyanate, chlorophenylene diisocyanates, hexamethylene diisocyanate, tetramethylene diisocyanate, isophorone diisocyanate, diphenylmethanediisocyanate;
The weight-average molecular weight Mw of described acrylic polymers (A) is 220-230 ten thousand, is preferably 2,200,000;
The molecular weight distribution of described acrylic polymers (A) is 20-25;
Described silane coupling agent is selected from 3-glycidoxypropyltrime,hoxysilane, 3-glycidoxypropyl group triethoxyl silane, 3-acryloxypropyl Trimethoxy silane, 3-r-chloropropyl trimethoxyl silane;
Described crosslinking accelerator is selected from cobalt naphthenate, oxalic acid two fourth tin, tetra-n-butyl tin, trimethyl tin hydroxide, dibutyl tin dilaurate;
Above-mentioned binder composition is preparing the purposes in optical thin film.
A kind of optical component, is provided with at least one side of optical thin film the binder layer that above-mentioned binder composition obtains.
The described acrylic polymers used in optical component tackiness agent of the present invention can be manufactured by current known polymerizations such as solution polymerization process, mass polymerization, emulsion polymerization and suspension polymerizations.In described acrylic polymers preparation, owing to have employed (methyl) alkoxyalkyl acrylate monomer containing alkoxyl group more than (methyl) alkyl acrylate monomer, and the combination weight-average molecular weight (Mw) had based on gel permeation chromatography (GPC) is 2,100,000 ~ 2,500,000, it is better the feature of 220-230 ten thousand, the acrylic polymers prepared is made simultaneously, to have the bond properties of satisfying the demand having good durability (heat-resisting, moisture-proof etc.).If Mw is less than 2,100,000, then heat-resisting, moisture resistance properties is not enough, when being heated easily there is the foaming under hot conditions in tackiness agent, if Mw is greater than 2,500,000, then the stickiness of tackiness agent, bounding force decline.
In addition, described acrylic polymers needs the ratio (Mw/Mn) of weight-average molecular weight (Mw) and number-average molecular weight (Mn) to be 15 ~ 25, is the polymkeric substance that molecular weight distribution is wide, have low modulus in tension.Because its modulus in tension is low, play good stress retentivity, effectively prevent from showing deviation.If described ratio (Mw/Mn) is excessive, then low-molecular weight polymer increases, and easily produces foaming; If described ratio (Mw/Mn) is too small, then stress retentivity declines, and when bonding area is large, easily light leak occurs.
In addition, do not use in composition of the present invention and there is amino compound component, such as, there is when preparing multipolymer amino monomer, there is amino silane coupling agent and crosslinking accelerator, because have amino compound, the ammonia with irritating smell is easily produced when heating, cause operating environment to worsen, affect workers ' health.Therefore tackiness agent of the present invention has the advantage of environmental protection more.
Embodiment
Below by way of embodiment, technical scheme of the present invention is further detailed and is described.
Production Example 1
In the reaction unit possessing stirrer, reflux exchanger, thermometer and nitrogen ingress pipe, add co-polymerized monomer and the ethyl acetate of the weight part being shown in table 1, add 0.5 part of Diisopropyl azodicarboxylate, by the air in reaction vessel with nitrogen replacement.Then, in a nitrogen atmosphere, after being warming up to 60 DEG C while stirring, after making it react 1.5 hours, continue to add 0.2 part of Diisopropyl azodicarboxylate, be warming up to 80 DEG C, make it react 1 hour, then add 0.3 part of Diisopropyl azodicarboxylate again, make it react 3.5 hours.After reaction terminates, with diluted ethyl acetate, obtain (methyl) acrylic polymer solution.
Production Example 2-9
Except the raw material difference for being polymerized, all the other preparation process are identical with Production Example 1.
The numerical value of the value (Mw/Mn) that the weight-average molecular weight measuring weight-average molecular weight (Mw) and the polymkeric substance obtained by GPC of (methyl) acrylic polymers made with last Production Example obtains divided by number-average molecular weight is shown in table 1.
<GPC condition determination >
Determinator: HLC-8120GPC
GPC post is formed: following 5 pedestals (1) TSK-GELH
xL-H (guard column), (2) TSK-GELG7000HXL, (3) TSK-GELGMHXL, (4) TSK-GELGMHL, (5) TSK-GELG2500HXL
Sample concentration: be diluted to 1.0mg/cm with tetrahydrofuran (THF)
3
Mobile phase solvent: tetrahydrofuran (THF)
Flow: 1.0cm
3/ minute
Column temperature: 40 DEG C
Table 1:
Embodiment 1
Relative to (methyl) acrylic polymers (solids component) in (methyl) acrylic polymer solution that 100 weight parts are obtained by Production Example 1, add 2 parts by weight of toluene diisocyanate cross-linking agents, 0.7 weight part 3-glycidoxypropyltrime,hoxysilane, and 0.1 weight part dibutyl tin dilaurate, obtain the solution of binder composition.
By making it dry in the surface of the polyester film PET through silicone lift-off processing the solution coat of this binder composition, obtain the adhesive sheet with the binder layer of thick 30 μm.This adhesive sheet to be fitted on polaroid and to carry out transfer printing, making the polarization plates with binder layer.
The preparation method of embodiment 2-5 and comparative example 1-5 with embodiment 1, unlike (methyl) acrylic polymers of the Production Example 1 used respectively in (methyl) acrylic polymers alternate embodiment 1 of Production Example 2-10.
The mensuration of the bonding force after 60 DEG C/48 hours
Above-mentioned sample is cut into 25mm width, is back and forth crimped on the non-alkali glass of thick 0.7mm with one with 2kg roller, thus attaches, 50 DEG C, process 15 minutes in the autoclave of 0.5MPa, then, place 48 hours at 60 DEG C.Bonding force (N/25mm) when stripping off this sample with tension stress trier with peel angle 180 °, peeling rate 300mm/min is measured.
Durability test
Above-mentioned sample is cut into 320mm × 240mm, is attached on the non-alkali glass of thickness 0.7mm, utilize 50 DEG C, the pressure kettle process of 0.5MPa 15 minutes, above-mentioned sample and non-alkali glass are touched completely.For the sample implementing this process, 90 DEG C, 100 DEG C, implement process in 500 hours, then with the state that following benchmark visual valuation foams, peels off, floats under the condition of 60 DEG C/90%RH.
Zero: not foaming, stripping.
△: confirm there is the foaming (maximum diameter is less than 100 μm) that identification is not impacted.
×: confirm there is foaming (maximum diameter is more than 100 μm), peels off.
The evaluation method of leakproof photosensitiveness
2 pieces of optical component laminator roll are bonded, makes them in the mutual orthogonal thereto Niccol position of the pros and cons of non-alkali glass plate, then being adjusted to 50 DEG C, keeping 20 minutes in 5 atmospheric autoclaves, make test film.
Placed 500 hours under the condition of 85 DEG C by the test film made, visual inspection leakproof photosensitiveness, evaluates according to following benchmark.
◎: do not find light leak completely
Zero: almost can't see light leak
△: find a small amount of light leak
×: find obvious light leak.
The performance test results is in table 2:
Table 2
From the test result shown in table 2, employ the adhesive sheet of tackiness agent of the present invention, all good on binding property, weather resistance and leakproof photosensitiveness.Although and the adhesive sheet of comparative example is meeting the demands in some performance, there is shortcoming in it on the overall performance comprising weather resistance, binding property and leakproof photosensitiveness.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (6)
1. a binder composition, is characterized in that, is made up of following composition (A), composition (B), composition (C) and composition (D):
(A) the weight-average molecular weight Mw of following monomer component (a1), (a2) and (a3) copolymerization is 2,100,000 ~ 2,500,000, and the molecular weight distribution of multipolymer (Mw/Mn) is the acrylic polymers of 15 ~ 25;
(a1) 85 ~ 95 % by weight (methyl) alkoxyalkyl acrylate, described (methyl) alkoxyalkyl acrylate is selected from (methyl) methoxyethyl acrylate and (methyl) ethoxyethyl acrylate
(a2) the carboxylic monomer of 0.5-5 % by weight, described carboxylic monomer is selected from (methyl) vinylformic acid, toxilic acid, fumaric acid,
(a3) monomer of 1 ~ 10 % by weight hydroxyl, the monomer of described hydroxyl is selected from 2-hydroxyethyl (methyl) acrylate, 4-hydroxybutyl (methyl) acrylate, 2-hydroxypropyl (methyl) acrylate, 2-hydroxybutyl (methyl) acrylate;
(B) relative to 100 parts by weight propylene acids polymers 0.5 ~ 5 weight part isocyanates linking agents;
(C) relative to 100 parts by weight propylene acids polymers 0.5 ~ 1.0 weight part silane coupling agents;
(D) relative to 100 parts by weight propylene acids polymers 0.1 ~ 0.5 weight part crosslinking accelerators.
2. a kind of binder composition as claimed in claim 1, is characterized in that: described isocyanates linking agent is selected from tolylene diisocyanate, chlorophenylene diisocyanates, hexamethylene diisocyanate, tetramethylene diisocyanate, isophorone diisocyanate, diphenylmethanediisocyanate.
3. a kind of binder composition as claimed in claim 1, is characterized in that: the weight-average molecular weight Mw of described acrylic polymers (A) is 220-230 ten thousand, is preferably 2,200,000.
4. a kind of binder composition as claimed in claim 1, is characterized in that: the molecular weight distribution of described acrylic polymers (A) is 20-25; Described silane coupling agent is selected from 3-glycidoxypropyltrime,hoxysilane, 3-glycidoxypropyl group triethoxyl silane, 3-acryloxypropyl Trimethoxy silane, 3-r-chloropropyl trimethoxyl silane; Described crosslinking accelerator is selected from cobalt naphthenate, oxalic acid two fourth tin, tetra-n-butyl tin, trimethyl tin hydroxide, dibutyl tin dilaurate.
5. the binder composition any one of claim 1-4 is preparing the purposes in optical thin film.
6. an optical component, is characterized in that, is provided with at least one side of optical thin film the binder layer obtained by the binder composition described in any one of claim 1-4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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