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WO2014193117A1 - Composition adhésive - Google Patents

Composition adhésive Download PDF

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Publication number
WO2014193117A1
WO2014193117A1 PCT/KR2014/004581 KR2014004581W WO2014193117A1 WO 2014193117 A1 WO2014193117 A1 WO 2014193117A1 KR 2014004581 W KR2014004581 W KR 2014004581W WO 2014193117 A1 WO2014193117 A1 WO 2014193117A1
Authority
WO
WIPO (PCT)
Prior art keywords
group
formula
adhesive composition
acrylate
meth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2014/004581
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English (en)
Korean (ko)
Inventor
최한영
유민근
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongwoo Fine Chem Co Ltd
Original Assignee
Dongwoo Fine Chem Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongwoo Fine Chem Co Ltd filed Critical Dongwoo Fine Chem Co Ltd
Publication of WO2014193117A1 publication Critical patent/WO2014193117A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
    • C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
    • C08G18/6225—Polymers of esters of acrylic or methacrylic acid
    • 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
    • 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

Definitions

  • the present invention relates to a pressure-sensitive adhesive composition excellent in adhesion durability.
  • a liquid crystal display device includes a liquid crystal cell and a polarizing plate containing liquid crystal, and various optical films (phase difference plate, viewing angle magnification film, Brightness enhancement film, etc.) is used.
  • Liquid crystal displays are widely used as display devices for personal computers, televisions, car navigation systems, and the like. Accordingly, there is a demand for a pressure-sensitive adhesive that is excellent in durability even in use in a harsh environment such as high temperature and high humidity, that is, does not peel off or generate bubbles even in long-term use.
  • an adhesive composition using an isocyanate compound as a crosslinking agent in an acrylic copolymer having a carboxyl group and a hydroxyl group is proposed (Japanese Patent Laid-Open No. 2004-224873). Moreover, it is proposed in the adhesive composition which used the polyfunctional metal chelate in the acryl-type copolymer which has a carboxyl group (Japanese Patent Laid-Open No. 2002-214439).
  • an adhesive composition using heterogeneous curing agents such as a metal chelate curing agent and an isocyanate curing agent has been proposed in an acrylic copolymer having a carboxyl group (Korean Patent No. 1148141).
  • the carboxyl group-containing acrylic copolymer ⁇ has a disadvantage that the carboxyl group is adjacent to the main chain of the acrylic copolymer, and the carboxyl group does not easily interact with the adherend, and it is difficult to secure sufficient durability and participate in the crosslinking reaction.
  • An object of the present invention is to provide a pressure-sensitive adhesive composition that can be significantly applied to a large-scale liquid crystal display device by significantly improving adhesion durability under severe conditions (high temperature or high temperature and high humidity).
  • the present invention provides an adhesive composition containing an acrylic copolymer having a hydroxy group, an acid anhydride of the formula (1), and a crosslinking agent.
  • R is an aliphatic hydrocarbon group having 4 to 8 carbon atoms, an alicyclic hydrocarbon group having 4 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 20 carbon atoms).
  • the acid anhydride may be at least one selected from the group consisting of the following Chemical Formulas 2 to 8.
  • R 1 is a direct bond, CH 2 , O, S, CO, SO, SO 2 , C (CH 3 ) 2 , C (CF 3 ) 2 , C (CH 3 ) 2 or Si (CH 3 ) 2 being)
  • R 2 is a direct bond, CH 2 , O, S, CO, SO, SO 2 , C (CH 3 ) 2 , C (CF 3 ) 2 , C (CH 3 ) 2 or Si (CH 3 ) 2 being)
  • the acrylic copolymer having a hydroxy group may contain an alkyl (meth) acrylate monomer having 4 to 12 carbon atoms and a monomer having a hydroxy group.
  • the acrylic copolymer having a hydroxy group may further contain a polymerizable monomer having at least one crosslinkable functional group selected from the group consisting of a monomer having a carboxyl group, a monomer having an amide group, and a monomer having a tertiary amine group.
  • the acid anhydride of Formula 1 may contain 10 to 50 functional groups with respect to 100 functional groups of the hydroxy group of the acrylic copolymer having a hydroxy group.
  • the crosslinking agent may contain 0.1 to 3.0 parts by weight based on 100 parts by weight of the acrylic copolymer having a hydroxy group.
  • the pressure-sensitive adhesive composition of the present invention has an advantage in that the specific acid anhydride acts as a crosslinking agent to improve adhesion and cohesion, and thus excellent adhesion durability in harsh conditions (high temperature or high temperature and high humidity).
  • the present invention relates to a pressure-sensitive adhesive composition excellent in adhesion durability.
  • the adhesive composition of this invention contains the acryl-type copolymer which has a hydroxyl group, the acid anhydride of following formula (1), and a crosslinking agent.
  • R is an aliphatic hydrocarbon group having 4 to 8 carbon atoms, an alicyclic hydrocarbon group having 4 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 20 carbon atoms
  • the acid anhydride of Formula 1 performs a crosslinking reaction with the hydroxyl group of the acrylic copolymer, thereby increasing the cohesion of the composition to improve durability. That is, in the present invention, since the crosslinking agent and the acid anhydride of Formula 1, which acts as a crosslinking agent, perform the reaction together, the effect of improving cohesion is increased compared to the conventional art.
  • the acid anhydride of Formula 1 reacts with the hydroxyl group of the acrylic copolymer to generate carboxylic acid functional groups as a product, thereby improving adhesion to the adherend.
  • the resulting carboxylic acid functional groups are expected to contribute sufficiently to the improvement of durability since they take a three-dimensional position far enough from the main chain of the acrylic copolymer and easily interact with the adherend.
  • the acryl-type copolymer of this invention contains the C4-C12 alkyl (meth) acrylate monomer and the monomer which has a hydroxyl group.
  • (meth) acrylate means acrylate and methacrylate, and the content of each component is based on solid content.
  • Examples of the (meth) acrylate monomer having an alkyl group having 4 to 12 carbon atoms include n-butyl (meth) acrylate, 2-butyl (meth) acrylate, t-butyl (meth) acrylate, and 2-ethylhexyl (meth).
  • Monomers having a hydroxy group include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6 Hydroxyhexyl (meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate, 2-hydroxypropylene glycol (meth) acrylate, and hydroxyalkylene glycol having 2 to 4 carbon atoms of an alkylene group (meth ) Acrylate, 4-hydroxybutyl vinyl ether, 5-hydroxypentyl vinyl ether, 6-hydroxyhexyl vinyl ether, 7-hydroxyheptyl vinyl ether, 8-hydroxyoctyl vinyl ether, 9-hydroxynonyl vinyl Ether, 10-hydroxydecylvinylether, 2-hydroxymethyl (meth) acrylamide, 2-hydroxyethyl (meth) acrylamide and Etc. can be mentioned.
  • the monomer which has such a hydroxyl group is contained in 0.5-10 weight part with respect to 100 weight part of (meth) acrylate monomers which have a C4-C12 alkyl group, More preferably, it is 1-5 weight part. If the content is less than 0.5 parts by weight it is difficult to react with the acid anhydride may be insufficient to improve the cohesion and adhesion strength, if it exceeds 10 parts by weight crosslinking is excessively progressed, the adhesive force is reduced due to excessive improvement of the cohesion may be deteriorated durability.
  • the acrylic copolymer of the present invention may further contain a polymerizable monomer having a crosslinkable functional group.
  • the polymerizable monomer having a crosslinkable functional group serves to reinforce the cohesive force or the adhesive strength of the pressure-sensitive adhesive composition by chemical bonding to impart durability and cutability.
  • Examples of the polymerizable monomer having a crosslinkable functional group include a monomer having an amide group, a monomer having a tertiary amine group, a monomer having a carboxyl group, and the like, and these may be used alone or in combination of two or more thereof.
  • Examples of the monomer having an amide group include (meth) acrylamide, N-isopropylacrylamide, N-tert-butylacrylamide, 3-hydroxypropyl (meth) acrylamide, 4-hydroxybutyl (meth) acrylamide, 6 -Hydroxyhexyl (meth) acrylamide, 8-hydroxyoctyl (meth) acrylamide, 2-hydroxyethylhexyl (meth) acrylamide, etc. are mentioned, Among these, (meth) acrylamide is preferable.
  • Monomers having a tertiary amine group include N, N- (dimethylamino) ethyl (meth) acrylate, N, N- (diethylamino) ethyl (meth) acrylate, and N, N- (dimethylamino) propyl ( Meth) acrylate, etc. are mentioned.
  • Monovalent acids such as (meth) acrylic acid and a crotonic acid; Diacids such as maleic acid, itaconic acid and fumaric acid, and monoalkyl esters thereof; 3- (meth) acryloylpropionic acid; Succinic anhydride ring-opening adduct of 2-hydroxyalkyl (meth) acrylate with 2-3 carbon atoms of an alkyl group, Succinic anhydride ring opening adduct of hydroxyalkylene glycol (meth) acrylate with 2-4 carbon atoms of an alkylene group And a compound obtained by ring-opening addition of succinic anhydride to a caprolactone adduct of 2-hydroxyalkyl (meth) acrylate having 2 to 3 carbon atoms of an alkyl group, among which (meth) acrylic acid is preferred.
  • a polymeric monomer is contained in 0.05-10 weight part with respect to 100 weight part of (meth) acrylate monomers which have a C4-C12 alkyl group, More preferably, it is 0.1-8 weight part. If the content is less than 0.05 parts by weight, the cohesive force of the pressure-sensitive adhesive may be reduced, the durability may be lowered. If the content is more than 10 parts by weight, the adhesive strength is lowered by a high gel fraction may cause problems in durability.
  • the acid anhydride of Formula 1 performs a crosslinking reaction with the hydroxyl group of the acrylic copolymer to improve the cohesion and at the same time the resulting carboxyl groups increase the adhesion to the adhesive agent to improve the durability.
  • R in Formula 1 is preferably an aliphatic hydrocarbon group having 4 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 20 carbon atoms, and more preferably at least one selected from the group consisting of the following Formulas 2 to 8.
  • R 1 is a direct bond, CH 2 , O, S, CO, SO, SO 2 , C (CH 3 ) 2 , C (CF 3 ) 2 , C (CH 3 ) 2 or Si (CH 3 ) 2 being)
  • R 2 is a direct bond, CH 2 , O, S, CO, SO, SO 2 , C (CH 3 ) 2 , C (CF 3 ) 2 , C (CH 3 ) 2 or Si (CH 3 ) 2 being)
  • Such acid anhydrides may be contained so as to have 10 to 50 functional groups, preferably 10 to 30 functional groups, based on 100 functional groups of the hydroxy group of the acrylic copolymer having a hydroxy group. If the number of functional groups is less than 10, the effect of improving cohesion and adhesion may be insufficient, and if the functional group exceeds 50 functional groups, the unreacted acid anhydride may bleed out and degrade durability.
  • it may be in the range of 0.2 to 1.0 parts by weight based on 100 parts by weight of the acrylic copolymer having a hydroxyl group.
  • a crosslinking agent is a component for strengthening the cohesion force of an adhesive by crosslinking a copolymer suitably,
  • the kind is not specifically limited.
  • an isocyanate type compound, an epoxy type compound, etc. are mentioned, These can be used individually or in mixture of 2 or more types.
  • isocyanate compound tolylene diisocyanate, xylene diisocyanate, 2,4-diphenylmethane diisocyanate, 4,4-diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, tetramethyl xylene diisocyanate
  • Diisocyanate compounds such as naphthalene diisocyanate; Diisocyanate obtained from 2 moles of an adduct obtained by reacting 3 moles of a diisocyanate compound with 1 mole of a polyhydric alcohol compound such as trimethylolpropane, an isocyanurate obtained by self-condensing 3 moles of the diisocyanate compound, and 3 moles of the diisocyanate compound
  • polyfunctional isocyanate compounds containing three functional groups such as biuret, triphenylmethanetriisocyanate, and methylenebistriisocyanate, in which the remaining 1
  • epoxy compounds examples include ethylene glycol diglycidyl ether, diethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, tripropylene glycol diglycidyl ether, and polypropylene glycol.
  • melamine type compound can be used individually or in mixture of 2 or more types together with an isocyanate type compound and an epoxy type compound.
  • Hexamethylol melamine, hexamethoxymethylmelamine, hexabutoxymethylmelamine, etc. are mentioned as a melamine type compound.
  • a crosslinking agent is contained in 0.1-3 weight part with respect to 100 weight part of acrylic copolymers, More preferably, it is 0.1-1 weight part. If the content is less than 0.1 part by weight, the cohesion force becomes small due to insufficient crosslinking degree, which may cause durability deterioration such as lifting and damage of cutting property.In the case of more than 3 parts by weight, the adhesive strength is deteriorated due to the excessive crosslinking reaction. As a result, problems with releasing residual stresses may occur.
  • the acid anhydride serves as a crosslinking agent
  • a small amount of the crosslinking agent may be used as compared with the conventional art.
  • the pressure-sensitive adhesive composition is a silane coupling agent, tackifying resin, antioxidant, leveling agent, surface lubricant, dye, in order to adjust the adhesion, cohesion, viscosity, elastic modulus, glass transition temperature, etc.
  • Additives, such as a pigment, an antifoamer, a filler, and a light stabilizer, can be further contained.
  • the double silane coupling agent plays a role of improving the adhesion between the pressure-sensitive adhesive and the substrate, it is preferable to contain it.
  • the silane coupling agent may be included in an amount of 0 to 10 parts by weight based on 100 parts by weight of the acrylic copolymer based on the solid content, preferably 0.005 to 5 parts by weight. If the content is more than 10 parts by weight, durability may be reduced.
  • the pressure-sensitive adhesive composition of the present invention can be used as a pressure-sensitive adhesive for polarizing plates and a surface protective film for bonding to liquid crystal cells.
  • it can be used as a general commercial adhesive sheet product as well as a protective film, a reflective sheet, a structural adhesive sheet, a photographic adhesive sheet, a lane marking adhesive sheet, an optical adhesive product, an adhesive for electronic parts, and the like.
  • n-butyl acrylate BA
  • methacrylate MA
  • 2-hydroxyethyl acrylate 2 90 parts by weight of n-butyl acrylate (BA), 7 parts by weight of methacrylate (MA), 2-hydroxyethyl acrylate 2 in a 1 L reactor equipped with a refrigeration system to allow nitrogen gas to reflux and for easy temperature control.
  • a monomer mixture consisting of parts by weight and 1 part by weight of dimethylaminoethyl acrylate
  • 100 parts by weight of ethyl acetate was added as a solvent.
  • purging nitrogen gas for 1 hour to remove oxygen it was maintained at 62 °C.
  • 0.07 parts by weight of azobisisobutyronitrile (AIBN) was added as a reaction initiator, and reacted for 6 hours to prepare an acrylic copolymer having a weight average molecular weight of 1 million.
  • AIBN azobisisobutyronitrile
  • An acrylic copolymer was prepared in the same manner as in Preparation Example 1, using hydroxyethylacrylamide instead of 2-hydroxyethyl acrylate.
  • the acrylic copolymer, the acid anhydride, the crosslinking agent, and the silane coupling agent of Preparation Example 1 were mixed in the composition shown in Table 2, and then diluted to a concentration of 28% by weight in consideration of coating properties to prepare an adhesive composition.
  • the pressure-sensitive adhesive composition prepared in 1) was applied on a release film coated with a silicone release agent to have a thickness of 25 ⁇ m, and dried at 100 ° C. for 1 minute, 5 minutes, and 10 minutes, respectively, to form an adhesive layer.
  • a polarizing plate having a triacetyl cellulose protective film bonded to both surfaces of the polarizer was laminated to prepare a polarizing plate with an adhesive.
  • the protective film surface and the adhesive layer was laminated so as to contact.
  • the prepared polarizing plate was stored under curing conditions at 23 ° C. and 60% RH.
  • the prepared pressure-sensitive adhesive polarizing plate was cut to a size of 90 mm x 170 mm, the release film was peeled off, and the specimens were prepared by attaching the optical absorption axis perpendicular to both surfaces of the glass substrate (110 mm x 190 mm x 0.7 mm).
  • the applied pressure was 5kg / cm2 and the clean room work so as not to generate bubbles or foreign matter.
  • the heat resistance characteristics were observed whether bubbles or peeling occurred after 1000 hours at 80 °C temperature, and the heat-resistant characteristics were bubbles or peeling after 1000 hours at 60 °C temperature and 90% RH conditions Was observed. At this time, it was observed after leaving for 24 hours at room temperature immediately before evaluating the state of the specimen.
  • the pressure-sensitive adhesive composition of Examples 1 to 15 containing an acrylic copolymer having a hydroxyl group, the acid anhydride of Formula 1, and a crosslinking agent according to the present invention is superior in adhesion durability compared to Comparative Examples 1 to 3. I could confirm that.

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  • 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

La présente invention porte sur une composition adhésive et, plus précisément, sur une composition adhésive contenant un copolymère à base acrylique ayant un groupe hydroxyle, un anhydride d'acide ayant une structure donnée et un agent de réticulation, l'anhydride d'acide servant d'agent de réticulation afin d'améliorer l'adhérence et la cohésion, ce qui permet de cette manière une excellente durabilité de l'adhérence dans des conditions difficiles (haute température ou haute température et humidité élevée).
PCT/KR2014/004581 2013-05-29 2014-05-22 Composition adhésive Ceased WO2014193117A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20130060746A KR20140140225A (ko) 2013-05-29 2013-05-29 점착제 조성물
KR10-2013-0060746 2013-05-29

Publications (1)

Publication Number Publication Date
WO2014193117A1 true WO2014193117A1 (fr) 2014-12-04

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PCT/KR2014/004581 Ceased WO2014193117A1 (fr) 2013-05-29 2014-05-22 Composition adhésive

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WO (1) WO2014193117A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102198346B1 (ko) * 2014-12-29 2021-01-04 동우 화인켐 주식회사 편광판용 점착제 조성물

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059452A (ja) * 1991-06-28 1993-01-19 Toyo Ink Mfg Co Ltd 硬化性粘着剤組成物およびこれを用いたシートもしくは テープ
KR20060130386A (ko) * 2005-06-14 2006-12-19 엘지.필립스 엘시디 주식회사 액정표시소자 및 그 제조방법
KR20090077664A (ko) * 2008-01-11 2009-07-15 주식회사 엘지화학 점착제 조성물, 상기를 포함하는 편광판 및 액정표시장치
JP2011063639A (ja) * 2009-09-15 2011-03-31 Soken Chem & Eng Co Ltd 粘着剤組成物
KR20110064979A (ko) * 2009-12-09 2011-06-15 이명천 아크릴계 점착수지 조성물, 이를 포함하는 광경화 재박리형 점착수지 조성물 및 이를 포함하는 점착테이프

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059452A (ja) * 1991-06-28 1993-01-19 Toyo Ink Mfg Co Ltd 硬化性粘着剤組成物およびこれを用いたシートもしくは テープ
KR20060130386A (ko) * 2005-06-14 2006-12-19 엘지.필립스 엘시디 주식회사 액정표시소자 및 그 제조방법
KR20090077664A (ko) * 2008-01-11 2009-07-15 주식회사 엘지화학 점착제 조성물, 상기를 포함하는 편광판 및 액정표시장치
JP2011063639A (ja) * 2009-09-15 2011-03-31 Soken Chem & Eng Co Ltd 粘着剤組成物
KR20110064979A (ko) * 2009-12-09 2011-06-15 이명천 아크릴계 점착수지 조성물, 이를 포함하는 광경화 재박리형 점착수지 조성물 및 이를 포함하는 점착테이프

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