WO2012157630A1 - 光学部材用粘着剤組成物およびその加工製品 - Google Patents
光学部材用粘着剤組成物およびその加工製品 Download PDFInfo
- Publication number
- WO2012157630A1 WO2012157630A1 PCT/JP2012/062374 JP2012062374W WO2012157630A1 WO 2012157630 A1 WO2012157630 A1 WO 2012157630A1 JP 2012062374 W JP2012062374 W JP 2012062374W WO 2012157630 A1 WO2012157630 A1 WO 2012157630A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensitive adhesive
- pressure
- adhesive composition
- monomer
- weight
- 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
Links
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
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- 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
-
- 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
- C08F220/20—Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
-
- 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
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- 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
- C08G18/6229—Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
-
- 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
- C08G18/625—Polymers of alpha-beta ethylenically unsaturated carboxylic acids; hydrolyzed polymers of esters of these acids
- C08G18/6254—Polymers of alpha-beta ethylenically unsaturated carboxylic acids and of esters of these acids containing hydroxy groups
-
- 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
- C08G18/6266—Polymers of amides or imides from alpha-beta ethylenically unsaturated carboxylic acids
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/794—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aromatic isocyanates or isothiocyanates
-
- 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
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
-
- 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
- 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
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
-
- 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
- C09J133/24—Homopolymers or copolymers of amides or imides
-
- 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
- C09J133/24—Homopolymers or copolymers of amides or imides
- C09J133/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- 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
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- 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
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
-
- 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
- C08G2170/00—Compositions for adhesives
- C08G2170/40—Compositions for pressure-sensitive adhesives
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
Definitions
- the present invention relates to a pressure-sensitive adhesive composition for optical members suitable for attaching optical members, particularly polarizing plates, and processed products thereof. More specifically, it has excellent heat resistance, heat and moisture resistance, and light leakage prevention properties when used for sticking polarizing plates, and significantly shortens the aging period required prior to sticking adhesives.
- the present invention relates to a pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive for the optical member includes, for example, (1) heat resistance, that is, no foaming, floating, peeling, or the like even when placed under a high temperature condition, and (2) moisture heat resistance, that is, high temperature. In addition, even when placed under high humidity conditions, it should not foam, float, or peel off at the location where it is applied. (3) Light leakage prevention, that is, the optical member shrinks in a high-temperature environment and sticks to the optical member.
- the aging property of the pressure sensitive adhesive greatly affects the lead time, so aging is one of the important characteristics.
- the pressure-sensitive adhesive composition for polarizing plates is mixed with a curing agent and then rolled into a work-in-process (polarizing plate / adhesive layer / release film or release film / adhesive layer / release film three-layer structure, etc.) To be processed.
- This work-in-process is stored for about a week in an aging room set at 20 to 50 ° C. (usually 40 ° C.) in order to converge the curing reaction of the pressure-sensitive adhesive and to exhibit predetermined required characteristics.
- the work-in-process is cut to a desired size, and the release film is peeled off and attached to the liquid crystal cell. Because of this processing process, if the storage period in the aging room is long, it is necessary to have as many work in process as it is, and the temperature management of the aging room and other running costs increase, so the aging period is short, There is a growing need for an adhesive composition for polarizing plates that does not require storage in an aging room.
- an amine compound is used as such a curing accelerator.
- an adhesive using a polyhydroxyalkylamine-based curing accelerator is likely to be yellowed due to a change with time, and is an optical adhesive. It is unsuitable for use as an agent.
- an acrylic polymer obtained by copolymerizing an amino group-containing monomer has a curing accelerating action, but in a system using such an amino group-containing monomer, the curing reaction proceeds excessively, The adhesive strength of the resulting adhesive may be reduced.
- an organometallic compound type accelerator is used.
- an organotin compound commonly used as the organometallic compound type accelerator is highly toxic.
- tributyltin contained in dibutyltin dilaurate is an endocrine disrupting substance. However, it is not recommended in this respect.
- Patent Document 1 aging is required by adding a specific amount of a carboxyl group-containing polymer to a mixture of a hydroxyl group-containing polymer, particularly a (meth) acrylic polymer and an isocyanate curing agent.
- a pressure-sensitive adhesive composition for a polarizing plate that can be sufficiently cured by a curing reaction in a coating drying process is disclosed.
- durability and aging property of the said adhesive are considered, the examination regarding the light leak which is an essential evaluation item for the adhesive for polarizing plates is not made
- an aliphatic isocyanate and / or a polyfunctional isocyanurate compound is used for an acrylic copolymer containing a monomer containing a hydroxyl group and a monomer containing a carboxyl group
- a pressure-sensitive adhesive composition with a long pot life, moderate adhesive strength and little change in adhesive strength over time by adding a compound causing keto-enol tautomerism, and good durability during heat treatment.
- a curing agent having an isocyanurate skeleton is used.
- a protective film is assumed as an application of the obtained pressure-sensitive adhesive, durability and light required for a pressure-sensitive adhesive for polarizing plates No consideration has been given to leaks.
- Patent Document 3 by blending an acrylic polymer having a hydroxyl group-containing monomer with an amino group-containing silane compound and an isocyanate curing agent, workability is reduced by shortening the aging time in the curing treatment.
- the pressure-sensitive adhesive composition for optical members having improved durability and reworkability is disclosed.
- durability and reworkability as a pressure-sensitive adhesive for polarizing plates have been studied, and amino group-containing materials are used for shortening the aging period.
- Patent Document 3 also does not discuss light leakage and is insufficient as a pressure-sensitive adhesive for polarizing plates.
- Patent Document 4 discloses an acrylic polymer obtained by copolymerizing a monomer mixture containing at least a monomer having an alkyl group having 1 to 16 carbon atoms and a monomer having a carboxyl group, and optionally containing acrylamide.
- the adhesive composition for optical members which mix
- the metal chelate-based curing agent is effective in shortening the aging period of the pressure-sensitive adhesive, the obtained pressure-sensitive adhesive has poor heat resistance and is insufficient as a pressure-sensitive adhesive for polarizing plates.
- JP 2008-156513 A Japanese Patent Laid-Open No. 2005-247909 JP 2009-173772 A JP 2009-132752 A
- the present invention has been made based on such background art, and has excellent heat resistance, moist heat resistance, light leakage prevention properties, and significant aging period when used for attaching optical members such as polarizing plates. It is an object of the present invention to obtain a pressure-sensitive adhesive composition that can be shortened in length, and a pressure-sensitive adhesive composition using the same.
- the pressure-sensitive adhesive composition for an optical member of the present invention comprises (a) 80 to 98.7 parts by weight of a monomer composed of an alkyl acrylate monomer having an alkyl group having 1 to 12 carbon atoms and / or an aromatic ring-containing acrylic monomer, (D) as a curing agent for 100 parts by weight of an acrylic polymer containing 0.2 to 1.5 parts by weight of an amide group-containing acrylic monomer and (c) 1 to 5 parts by weight of a hydroxyl group-containing acrylic monomer
- a pressure-sensitive adhesive composition for optical members characterized in that it contains 0.12 to 1 part by weight of an isocyanate curing agent having an isocyanurate skeleton, and contains substantially no metal chelate curing agent. .
- the pressure-sensitive adhesive composition for optical members of the present invention contains an acrylic polymer containing a repeating unit derived from an amide group-containing monomer, and the acrylic polymer is crosslinked with an isocyanate curing agent having an isocyanurate skeleton.
- isocyanate-based curing agents having an isocyanurate skeleton especially when a tolylene diisocyanate-based curing agent having positive birefringence is used, the result of correcting optical distortion caused by deformation of the pressure-sensitive adhesive accompanying contraction of the polarizing plate The light leakage prevention effect is remarkably exhibited.
- the optical distortion mentioned above can also be compensated by using an aromatic ring-containing acrylic monomer as a constituent component of the acrylic polymer, a pressure-sensitive adhesive composition that is further excellent in light leakage prevention property can be obtained.
- the cross-linking reaction proceeds excessively (sheet aging), resulting in a decrease in the adhesive strength of the resulting pressure-sensitive adhesive and moisture-heat stability. Therefore, it is unsuitable as an adhesive composition for optical members.
- sheet aging resulting in a decrease in the adhesive strength of the resulting pressure-sensitive adhesive and moisture-heat stability. Therefore, it is unsuitable as an adhesive composition for optical members.
- amide groups coexist as a crosslinkable group and the ratio of amino groups is low, the above problem does not occur.
- the pressure-sensitive adhesive composition of the present invention does not substantially contain a metal chelate-based curing agent. That is, by using a metal chelate-based curing agent, a pressure-sensitive adhesive composition having a short aging period can be obtained. However, the pressure-sensitive adhesive thus obtained has a significant decrease in durability, particularly heat resistance. is there. Incidentally, even if the metal chelate-based curing agent is present in the pressure-sensitive adhesive composition at a level usually contained as an impurity (in a trace amount), it is applied in the case of “substantially not containing” in the present invention.
- the pressure-sensitive adhesive composition for an optical member of the present invention is used for sticking a film or a plate to be used by sticking to the surface of a liquid crystal element, such as an optical member, particularly a polarizing plate, a retardation plate, a scratch-proof film. It is a suitable pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive composition for an optical member of the present invention may be in the form of a film or a plate, but is usually in the range of 5 to 50 ⁇ m, preferably 10 to 30 ⁇ m. It has the structure which the peelable film stuck on both surfaces.
- a support body may exist and the adhesive layer may be formed in both surfaces of the support body.
- the support used here is preferably a highly transparent resin film such as poly (meth) alkyl acrylate, polyethylene terephthalate, or polycarbonate.
- the thickness of the support is usually in the range of 10 to 500 ⁇ m, preferably 50 to 200 ⁇ m.
- the thickness of each pressure-sensitive adhesive layer is 5 to 50 ⁇ m, preferably 10 It is in the range of ⁇ 30 ⁇ m.
- the pressure-sensitive adhesive composition for an optical member of the present invention comprises an acrylic polymer and an isocyanate curing agent having an isocyanurate skeleton.
- the acrylic polymer of the present invention comprises (a) a monomer composed of an alkyl acrylate monomer having an alkyl group having 1 to 12 carbon atoms and / or an aromatic ring-containing acrylic monomer, (b) an amide group-containing acrylic monomer, c) A hydroxyl group-containing acrylic monomer.
- the monomer (a) is composed of an alkyl acrylate monomer having an alkyl group having 1 to 12 carbon atoms and / or an aromatic ring-containing acrylic monomer. That is, the monomer (a) may be composed only of an alkyl acrylate monomer having an alkyl group having 1 to 12 carbon atoms, may be composed only of an aromatic ring-containing acrylic monomer, or a combination of both. May be.
- alkyl acrylate monomer having an alkyl group having 1 to 12 carbon atoms examples include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate, and isobutyl (meth) ) Acrylate, pentyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate, nonyl (meth) acrylate, decyl (meth) acrylate, dodecyl (meth) acrylate, lauryl (meth) ) Acrylate and the like.
- the monomer (a) contains an alkyl acrylate monomer having an alkyl group having 1 to 3 carbon atoms, such as methyl (meth) acrylate, ethyl (meth) acrylate or propyl (meth) acrylate, as one of the constituent elements, it is obtained.
- the resulting light-sensitive adhesive composition can exhibit light leakage prevention properties.
- Aromatic ring-containing acrylic monomers include, for example, phenyl acrylate, phenoxyethyl (meth) acrylate, benzyl (meth) acrylate, phenoxydiethylene glycol (meth) acrylate, ethylene oxide modified nonylphenol (meth) acrylate, hydroxyethylated ⁇ -naphthol acrylate, biphenyl (Meth) acrylate etc. are mentioned. These monomers can be used alone or in combination. In addition, when the monomer (a) contains an aromatic ring-containing acrylic monomer as one of the constituent elements, an excellent light leakage prevention property can be exhibited in the obtained pressure-sensitive adhesive composition.
- the blending amount of the monomer (a) is 80 to 98.7% by weight, preferably 85 to 97.35% by weight of the acrylic polymer.
- the amide group-containing acrylic monomer (b) constituting the acrylic polymer of the present invention is an acrylic monomer having an amide group or an N-substituted amide group in the molecule.
- Specific examples of (b) include (meth) acrylamide, (meth) acryloylmorpholine, N-methylol (meth) acrylamide, N-methoxyethyl (meth) acrylamide, N, N-dimethylacrylamide, and N-isopropylacrylamide. Etc. These monomers can be used alone or in combination.
- the blending amount of the amide group-containing acrylic monomer (b) is 0.2 to 1.5% by weight, preferably 0.5 to 1% by weight of the acrylic polymer. These monomers can be used alone or in combination.
- “Hydroxyl-containing acrylic monomer (c)] Specific examples of the hydroxyl group-containing acrylic monomer (c) constituting the acrylic polymer of the present invention include 2-hydroxyethyl (meth) acrylate, 2-hydroxyethylpropyl (meth) acrylate, and 3-chloro-2-hydroxypropyl.
- (meth) acrylate Mention may be made of (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate and 8-hydroxyoctyl (meth) acrylate.
- the amount of the hydroxyl group-containing acrylic monomer (c) is 1 to 5% by weight, preferably 2 to 4% by weight, based on the acrylic polymer. These monomers can be used alone or in combination.
- the acrylic polymer of the present invention may contain other monomers as long as the required properties are not impaired. Specifically, the acrylic polymer has a carboxyl group in the molecule. Monomer.
- the monomer having a carboxyl group in the molecule include, for example, (meth) acrylic acid, 2-carboxyethyl (meth) acrylate, 3-carboxypropyl (meth) acrylate, 4-carboxybutyl (meth) acrylate, itaconic acid, Such as crotonic acid, maleic acid, fumaric acid and maleic anhydride.
- the amount of the other monomer is 0.1 to 13.5% by weight, preferably 0.15 to 10% by weight of the acrylic polymer.
- the isocyanate curing agent having an isocyanurate skeleton of component (d) used in the present invention is a compound containing an isocyanurate group formed by trimerization of an isocyanate group in the molecule, and has various derivatives.
- Component (d) is not particularly limited as long as it is an isocyanate type having an isocyanurate skeleton, and can be obtained, for example, by the method described in JP-A-8-193114, International Publication No. 2006/137307, for example, Coronate 342, Coronate 2030 (both manufactured by Nippon Polyurethane Co., Ltd.), etc. are on the market.
- the tolylene diisocyanate type is particularly preferable because it has a positive birefringence and has a high light leakage prevention property.
- an isocyanate curing agent having an isocyanurate skeleton as a curing agent in an amount of 0.12 to 1 part by weight, preferably 0.14 to 0.5 part by weight, based on 100 parts by weight of the acrylic polymer. Use in an amount within the range.
- an isocyanate curing agent having an isocyanurate skeleton probably has an amide group implanted in an acrylic polymer that exhibits a catalytic action and promotes a reaction with a hydroxyl group that is also implanted in the acrylic polymer. As a result, a crosslinked structure is formed in a short time. Thus, it is presumed that an adhesive having excellent heat resistance and heat and moisture resistance is formed. Therefore, the pressure-sensitive adhesive composition for optical members of the present invention can be processed in a short aging process.
- Silane coupling agent In addition to the above elements, a silane coupling agent can be added to the pressure-sensitive adhesive composition for optical members of the present invention.
- silane coupling agent examples include polymerizable unsaturated group-containing silicon compounds such as vinyltrimethoxysilane, vinyltriethoxysilane, and methacryloxypropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, and 3-glycidide.
- examples thereof include silicon compounds having an epoxy structure such as xylpropylmethyldimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, and 3-chloropropyltrimethoxysilane.
- a silicon compound having an epoxy structure is preferable.
- the amount of the silane coupling agent is usually 0.05 to 1.0 part by weight, preferably 0.05 to 0.6 part by weight, based on 100 parts by weight of the acrylic polymer. These compounds can be used alone or in combination.
- the pressure-sensitive adhesive composition for optical members of the present invention a known production method can be employed. For example, methods such as solution polymerization, bulk polymerization, emulsion polymerization, and seed polymerization can be employed.
- the solution polymerization can be used as a coating solvent without removing the reaction solvent after performing the polymerization in the presence of a catalyst using the reaction solvent.
- Bulk polymerization is preferable because polymerization can be carried out substantially without using a solvent.
- the monomer used in the present invention has very good reactivity, so the charged amount is the polymer composition ratio.
- Examples of the solvent that can be used when performing polymerization by solution polymerization in the present invention include ethyl acetate, toluene, methyl ethyl ketone, and the like, and the catalyst to be used is an ordinary polymer used for the production of acrylic polymers. A catalyst can be used.
- the polymerization reaction is usually performed by purging the inside of the reaction vessel with an inert gas such as nitrogen gas. While the reaction temperature varies depending on the solvent to be used, it is generally 50 to 100 ° C., preferably 60 to 80 ° C.
- the pressure-sensitive adhesive composition for optical members is usually coated and processed on a film-like or plate-like substrate. That is, the pressure-sensitive adhesive composition for an optical member of the present invention is applied on a peelable release film, and further processed by attaching a peelable film to the coated surface.
- the pressure-sensitive adhesive composition for optical members of the present invention can also be used for forming a pressure-sensitive adhesive layer on both sides of a suitable support.
- the pressure-sensitive adhesive composition for optical parts of the present invention is suitable for sticking a polarizing plate, a retardation plate, a polarizing plate, a surface protective film and the like used when forming a liquid crystal element.
- the thickness of the pressure-sensitive adhesive composition for optical parts of the present invention is usually in the range of 5 to 50 ⁇ m, preferably in the range of 10 to 30 ⁇ m.
- the glass transition temperature determined by the FOX formula of the pressure-sensitive adhesive of the present invention is usually in the range of ⁇ 60 to ⁇ 20 ° C., preferably ⁇ 55 to ⁇ 30 ° C.
- the result of the 180 ° peel test is usually in the range of 2 to 20 N / 25 mm, preferably 3 to 10 N / 25 mm, and is excellent in reworkability.
- optical member is not particularly limited, for example, the surface of a liquid crystal element, such as a polarizing plate, a retardation plate, an elliptical polarizing plate, an antireflection film, a brightness enhancement film, a light diffusion film, a glass scattering prevention film, and a surface protection film It is a member having a shape such as a plate, a sheet, or a film that is attached to the sheet.
- ⁇ GPC measurement device Measuring device: HLC-8120GPC (manufactured by Tosoh Corporation) GPC column configuration: The following five columns (all manufactured by Tosoh Corporation) (1) TSK-GEL HXL-H (guard column) (2) TSK-GEL G7000HXL (3) TSK-GEL GMHXL (4) TSK-GEL GMHXL (5) TSK-GEL G2500HXL Sample concentration: diluted with tetrahydrofuran to 1.0 mg / cm 3 Mobile phase solvent: tetrahydrofuran Flow rate: 1 mL / min Column temperature: 40 ° C ⁇ Measurement method of non-volatile content> About 1 g of an acrylic polymer was placed in a precisely weighed tin plate (n1), the total weight (n2) was precisely weighed, and then heated at 105 ° C.
- the nonvolatile content was calculated from the following formula using the obtained weight measurement values (n1 to n3).
- Nonvolatile content (%) 100 x [weight after heating (n3-n1) / weight before heating (n2-n1)] ⁇ Viscosity measurement>
- the acrylic polymer was measured at room temperature using a B-type viscometer.
- Acrylic polymers (2) to (14) were obtained in the same manner as in Production Example 1, except that the monomer composition shown in Table 1 was used.
- Mw, Mn, nonvolatile content, and viscosity of these acrylic polymers were measured in the same manner as in Production Example 1. The results are shown in Table 1.
- Example 1 (Preparation of adhesive composition) 0.15 parts by weight of coronate 342 (manufactured by Nippon Polyurethane Co., Ltd.), which is a tolylene diisocyanate curing agent having an isocyanurate skeleton, with respect to 100 parts by weight of the acrylic polymer (1) obtained in Production Example 1.
- As a silane coupling agent 0.2 part by weight of A-50 (manufactured by Soken Chemical Co., Ltd.) was added, and these were sufficiently mixed to obtain an adhesive composition.
- a pressure-sensitive adhesive composition was obtained in the same manner as in Example 1 except that the acrylic polymer, the crosslinking agent, and the silane coupling agent were changed as shown in Table 2 below.
- Example 1 A pressure-sensitive adhesive composition was obtained in the same manner as in Example 1 except that the acrylic polymer, the crosslinking agent, and the silane coupling agent were changed as shown in Table 3 below.
- Test Example 1 ⁇ Aging test> The pressure-sensitive adhesive compositions obtained in Examples 1 to 15 and Comparative Examples 1 to 11 were evaluated by the number of days required for the change in gel fraction of the pressure-sensitive adhesive to become stable after coating and drying. The results are shown in Table 2 and Table 3.
- the measuring method of a gel fraction was performed as follows. ⁇ Method for measuring gel fraction> The obtained pressure-sensitive adhesive composition was applied to the surface of the PET film subjected to the peeling treatment and dried so that the thickness after drying was 20 ⁇ m.
- a PET film that had been similarly subjected to a peeling treatment was bonded to the other surface of the applied pressure-sensitive adhesive composition to obtain a test piece.
- Gel fraction (%) (dry weight / weight of collected adhesive) x 100
- the gel fraction in Table 2 and Table 3 shows the measured value of the gel fraction after aging is completed and stabilized.
- [Test Example 2] A polarizing plate with an adhesive was prepared using the adhesive compositions obtained in Examples 1 to 15 and Comparative Examples 1 to 11, and the heat resistance, moist heat resistance, light leakage prevention property and sheet aging property were as follows. The method was evaluated. These results are summarized in Tables 2 and 3. (Preparation of polarizing plate with adhesive) After defoaming, the pressure-sensitive adhesive composition was applied onto a PET film that had been subjected to a release treatment using a doctor blade, immediately dried at 90 ° C.
- the adhesive strength value at the start of storage is A
- the adhesive strength value after one month is B
- Y B / A ⁇ 100
- the rate of change was defined by the following formula, and the sheet aging property was evaluated by the value of Y (in Table 2, the expression “no change” indicates that the value of Y falls within the range of 95 to 105%).
- the measuring method of adhesive force was performed as follows. ⁇ Measurement method of adhesive strength> The adhesive strength was evaluated based on the peel strength when the polarizing plate test piece adhered to the glass substrate was pulled at a speed of 300 mm / min in the 180 ° direction with respect to the glass substrate.
- the pressure-sensitive adhesive composition of the present invention obtained by blending an isocyanate-based curing agent having an isocyanurate skeleton with an acrylic polymer containing an amide group-containing acrylic monomer as a constituent element is an isocyanate type that is not an isocyanurate type. It was shown that the aging days can be significantly shortened as compared with the pressure-sensitive adhesive composition prepared by blending the curing agent.
- the pressure-sensitive adhesive composition prepared by blending an isocyanate-based curing agent having an isocyanurate skeleton with an acrylic polymer containing an amino group-containing acrylic monomer as a constituent element is compared with the pressure-sensitive adhesive composition of the present invention.
- sheet aging was remarkably exhibited, and it was shown that the adhesive strength was greatly reduced.
- the pressure-sensitive adhesive composition of the present invention can significantly reduce the required aging period, thereby reducing various costs associated with long-term aging. Furthermore, since the pressure-sensitive adhesive composition of the present invention exhibits excellent light leakage prevention properties, is excellent in heat resistance and moist heat resistance, and does not cause sheet aging, it is suitably used for optical members, particularly polarizing plates.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
[アクリル系ポリマー]
本発明のアクリル系ポリマーは、(a)炭素数1~12のアルキル基を有するアルキルアクリレートモノマーおよび/または芳香環含有アクリルモノマーで構成されるモノマーと、(b)アミド基含有アクリルモノマーと、(c)水酸基含有アクリルモノマーとを含むものである。
[モノマー(a)]
モノマー(a)は、炭素数1~12のアルキル基を有するアルキルアクリレートモノマーおよび/または芳香環含有アクリルモノマーで構成される。すなわち、モノマー(a)は、炭素数1~12のアルキル基を有するアルキルアクリレートモノマーのみで構成されてもよく、あるいは芳香環含有アクリルモノマーのみで構成されてもよく、あるいは両者の組合せで構成されてもよい。
[アミド基含有アクリルモノマー(b)]
本発明のアクリル系ポリマーを構成するアミド基含有アクリルモノマー(b)は、分子内にアミド基またはN置換アミド基を有するアクリルモノマーである。(b)の具体例としては、例えば、(メタ)アクリルアミド、(メタ)アクリロイルモルホリン、N-メチロール(メタ)アクリルアミド、N-メトキシエチル(メタ)アクリルアミド、N,N-ジメチルアクリルアミド、N-イソプロピルアクリルアミド等が挙げられる。これらのモノマーは単独であるいは組合わせて使用することができる。アミド基含有アクリルモノマー(b)の配合量は、アクリル系ポリマーの0.2~1.5重量%、好ましくは0.5~1重量%である。これらのモノマーは単独であるいは組合わせて使用することができる。
[水酸基含有アクリルモノマー(c)]
本発明のアクリル系ポリマーを構成する水酸基含有アクリルモノマー(c)は、具体的には、2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシエチルプロピル(メタ)アクリレート、3-クロロ-2-ヒドロキシプロピル(メタ)アクリレート、4-ヒドロシキブチル(メタ)アクリレート、6-ヒドロキシヘキシル(メタ)アクリレートおよび8-ヒドロキシオクチル(メタ)アクリレートを挙げることができる。水酸基含有アクリルモノマー(c)の配合量は、アクリル系ポリマーの1~5重量%、好ましくは2~4重量%である。これらのモノマーは単独であるいは組合わせて使用することができる。
[その他のモノマー]
本発明のアクリル系ポリマーは、上記(a)~(c)の他に、要求される特性を損なわない範囲でその他のモノマーを配合してもよく、具体的には分子内にカルボキシル基を有するモノマーが挙げられる。分子内にカルボキシル基を有するモノマーの具体例は、例えば(メタ)アクリル酸、2-カルボキシエチル(メタ)アクリレート、3-カルボキシプロピル(メタ)アクリレート、4-カルボキシブチル(メタ)アクリレート、イタコン酸、クロトン酸、マレイン酸、フマル酸及び無水マレイン酸などである。その他のモノマーの配合量は、アクリル系ポリマーの0.1~13.5重量%、好ましくは0.15~10重量%である。これらのモノマーは単独であるいは組合わせて使用することができる。
[イソシアヌレート骨格を有するイソシアネート系架橋剤(d)]
本発明に用いる成分(d)のイソシアヌレート骨格を有するイソシアネート系硬化剤は、イソシアネート基が3量体化して形成されるイソシアヌレート基を分子内に含む化合物であり、種々の誘導体を有する。成分(d)はイソシアヌレート骨格を有するイソシアネート系のものならば特に限定されないが、例えば特開平8-193114号公報、国際公開第2006/137307号パンフレットに記載された方法により得ることができ、例えばコロネート342、およびコロネート2030(いずれも日本ポリウレタン(株)製)等が上市されている。
[シランカップリング剤]
本発明の光学部材用粘着剤組成物には、上記要素の他に、シランカップリング剤を配合することができる。シランカップリング剤としては、例えば、ビニルトリメトキシシラン、ビニルトリエトキシシラン、メタクリロキシプロピルトリメトキシシラン等の重合性不飽和基含有ケイ素化合物、3-グリシドキシプロピルトリメトキシシラン、3-グリシドキシプロピルメチルジメトキシシラン、2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン等のエポキシ構造を有するケイ素化合物、3-クロロプロピルトリメトキシシラン等が挙げられる。これらの中でも、エポキシ構造を有するケイ素化合物が好ましい。シランカップリング剤の配合量は、アクリル系ポリマー100重量部に対して通常は0.05~1.0重量部、好ましくは0.05~0.6重量部とする。これらの化合物は単独であるいは組合わせて使用することができる。
[光学部材]
本発明の光学部材は特に限定されないが、例えば偏光板、位相差板、楕円偏光板、反射防止フィルム、輝度向上フィルム、光拡散フィルム、ガラス飛散防止フィルムおよび表面保護フィルムなど、特に液晶素子の表面に貼着される板、シートまたはフィルム等の形状の部材である。
(製造例1:アクリル系ポリマー(1)の製造)
攪拌装置、窒素ガス導入管、温度計および還流冷却管を備えたフラスコに、ブチルアクリレート86.3重量部と、フェノキシエチルアクリレート10重量部と、アクリル酸0.2重量部と、2-ヒドロキシエチルアクリレート3重量部と、アクリルアミド0.5重量部と、酢酸エチル160重量部とを仕込み、フラスコ内に窒素ガスを導入しながらフラスコの内容物を68℃に加熱した。次いで、充分に窒素ガス置換したフラスコ内に、攪拌下で0.1重量部のAIBNを添加した。フラスコ内の内容物の温度を68~69℃に維持しながら6時間反応させた。6時間経過後の反応混合物に酢酸エチル130部を添加した。このアクリル系ポリマー(1)について、重量平均分子量(Mw)、数平均分子量(Mn)を下記GPC測定条件に従って測定し、分散度(Mw/Mn)を求めた。また、不揮発分(nV)および粘度についても下記方法により測定した。測定結果をモノマー組成と併せて表1に示す。
<GPC測定装置>
測定装置:HLC-8120GPC(東ソー(株)製)
GPCカラム構成:以下の5連カラム(すべて東ソー(株)製)
(1)TSK-GEL HXL-H(ガードカラム)
(2)TSK-GEL G7000HXL
(3)TSK-GEL GMHXL
(4)TSK-GEL GMHXL
(5)TSK-GEL G2500HXL
サンプル濃度:1.0mg/cm3となるように、テトラヒドロフランで希釈
移動相溶媒:テトラヒドロフラン
流量: 1mL/min
カラム温度:40℃
<不揮発分の測定方法>
精秤したブリキシャーレ(n1)にアクリル系ポリマーを1g程度入れ、合計重量(n2)を精秤した後、105℃で3時間加熱した。その後、このブリキシャーレを室温のデシケータ内に1時間静置し、次いで再度精秤し加熱後の合計重量(n3)を測定した。得られた重量測定値(n1~n3)を用いて下記式から不揮発分を算出した。
<粘度測定>
アクリル系ポリマーについて、B型粘度計を使用して室温にて測定した。
(製造例2~14:アクリル系重合体(2)~(14)の製造)
表1に示すモノマー組成に代えた以外は製造例1と同様にしてアクリル系ポリマー(2)~(14)を得た。これらのアクリル系ポリマーのMw、Mn、不揮発分、粘度を製造例1と同様に測定した。結果を表1に示す。
(粘着剤組成物の調製)
製造例1により得られたアクリル系ポリマー(1) 100重量部に対して、イソシアヌレート骨格を有するトリレンジイソシアネート系硬化剤であるコロネート342(日本ポリウレタン(株)製)0.15重量部と、シランカップリング剤としてA-50(綜研化学(株)製)0.2重量部とを添加し、これらを充分に混合して粘着剤組成物を得た。
〔実施例2~15〕
アクリル系ポリマー、架橋剤、シランカップリング剤を下記表2のように代えた以外は、実施例1と同様にして粘着剤組成物を得た。
〔比較例1~11〕
アクリル系ポリマー、架橋剤、シランカップリング剤を下記表3のように代えた以外は、実施例1と同様にして粘着剤組成物を得た。
〔試験例1〕
<エージング試験>
実施例1~15および比較例1~11で得られた粘着剤組成物を塗工、乾燥後、当該粘着剤のゲル分率変化が安定するまでに要した日数でもって評価した。結果を表2および表3に示す。なお、ゲル分率の測定方法は以下のようにして行なった。
<ゲル分率の測定方法>
得られた粘着剤組成物を、乾燥後の厚みが20μmになるように、剥離処理の施されたPETフィルムの表面に塗布、乾燥させた。その後、塗布された粘着剤組成物のもう一方の面に、同じく剥離処理が施されたPETフィルムを貼り合わせ、試験片とした。試験片を23℃、50%RHで保管し、保管開始直後(0日)から1日毎に、試験片から粘着剤約0.1gをサンプル瓶に採取し、酢酸エチル30ccを加えて24時間浸透させた後、該サンプル瓶の内容物を200メッシュのステンレス製金網で濾別し、金網上で100℃にて2時間乾燥させた後の残留物重量を乾燥重量とした。これらの値を元に、以下の式によりゲル分率を測定した。
なお、表2および表3中のゲル分率は、エージングが完了して安定化した後のゲル分率測定値を示す。
〔試験例2〕
実施例1~15、比較例1~11で得られた粘着剤組成物を用いて粘着剤付き偏光板を作製し、それぞれについて耐熱性、耐湿熱性、光漏れ防止性、シート老化性を以下の方法により評価した。これらの結果を表2および3にまとめて示す。
(粘着剤付き偏光板の作製)
泡抜け後、上記粘着剤組成物を、剥離処理が施されたPETフィルム上にドクターブレードを用いて塗工し、すぐに90℃で3分間乾燥させ、これを偏光板に貼り合わせた。偏光板上の粘着剤のゲル分率変動を充分に安定させるために23℃、50%RHの条件下で5日間静置し、これを試験片とした。
<耐熱/耐湿熱試験>
上記試験片をそれぞれ60mm×120mmに裁断し、PETフィルムを剥離後、ガラス基板上に貼り付け、これを85℃、ドライ条件で500時間放置(耐熱試験)、および60℃、95%RHで500時間放置し(耐湿熱試験)、試験片に発生する発泡、浮き、剥がれの状態を目視で観察し、耐熱性、耐湿熱性を評価した。
○:発泡、浮き、剥がれ等の外観不良が認められなかった
△:発泡、浮き、剥がれ等の外観不良がわずかに認められた
×:発泡、浮き、剥がれ等の外観不良が明らかに認められた
<光漏れ試験>
上記のように作製された試験片二枚のPETフィルムを剥離し、これらをガラス基板の表裏面それぞれに、相互に直交ニコルになるようにラミネーターロールを用いて貼着し、次いで50℃、5気圧に調整されたオートクレーブ中で20分間保持した。続いて、これらの試験片を85℃の条件下で500時間放置し、光漏れ防止性を目視で観察した。光漏れ試験の値については、画面の中央の輝度をAとし、角部から1cm離れた位置をBとして、中央部Aと角部Bの輝度の比、すなわちX=B/Aの式をもって光漏れ防止性を評価した。すなわちXの値が小さいほど光漏れ防止性に優れるものとなる。
<シート老化性試験>
上記試験片のPETフィルムを剥離してガラス基板上に貼り付け、これを23℃、50%RHで一ヶ月間保管した。
Y=B/A×100
の式をもって変化率を定義し、Yの値をもってシート老化性を評価した(表2中、"変化無し"の表記は、Yの値が95~105%の範囲に収まることを示す)。なお、粘着力の測定方法は以下のようにして行なった。
<粘着力の測定方法>
上記ガラス基板に貼着された偏光板試験片を、ガラス基板に対して180°方向に300mm/minの速度で引張った際の剥離強度をもって粘着力を評価した。
上記試験結果より、アミド基含有アクリルモノマーを構成要素として含むアクリル系ポリマーに対してイソシアヌレート骨格を有するイソシアネート系硬化剤を配合してなる本発明の粘着剤組成物は、イソシアヌレート型でないイソシアネート系硬化剤を配合して作製された粘着剤組成物と比較して、エージング日数を有意に短縮できることが示された。
Claims (5)
- (a)炭素数1~12のアルキル基を有するアルキルアクリレートモノマーおよび/または芳香環含有アクリルモノマーで構成されるモノマー80~98.7重量部と、
(b)アミド基含有アクリルモノマー0.2~1.5重量部と、
(c)水酸基含有アクリルモノマー1~5重量部と、を含むアクリル系ポリマー100重量部に対し、
(d)硬化剤としてイソシアヌレート骨格を有するイソシアネート系硬化剤を0.12~1重量部配合してなり、金属キレート系硬化剤を実質的に含有しないことを特徴とする光学部材用粘着剤組成物。 - 前記(d)のイソシアヌレート骨格を有するイソシアネート系硬化剤が、トリレンジイソシアネート系硬化剤であることを特徴とする請求項1項記載の光学部材用粘着剤組成物。
- 前記(a)のモノマーが前記炭素数1~12のアルキル基を有するアルキルアクリレートモノマーを少なくとも含み、前記炭素数1~12のアルキル基を有するアルキルアクリレートモノマーが、炭素数1~3のアルキル基を有するアルキルアクリレートモノマーと、炭素数4~12のアルキル基を有するアルキルアクリレートモノマーとからなることを特徴とする請求項1または2記載の光学部材用粘着剤組成物。
- 前記(a)のモノマーが、少なくとも芳香環含有アクリルモノマーを含むことを特徴とする請求項1~3いずれか1項記載の光学部材用粘着剤組成物。
- フィルム状、シート状または板状の光学部材であって、請求項1~4いずれか1項記載の光学部材用粘着剤組成物を少なくとも一方の面上に有することを特徴とする光学部材。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201280023743.XA CN103534326B (zh) | 2011-05-17 | 2012-05-15 | 光学构件用粘合剂组合物及其加工制品 |
| EP12785531.0A EP2711403A4 (en) | 2011-05-17 | 2012-05-15 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR AN OPTICAL COMPONENT AND PROCESSED PRODUCT THEREOF |
| US14/117,726 US9080085B2 (en) | 2011-05-17 | 2012-05-15 | Pressure-sensitive adhesive composition for optical member and processed product thereof |
| KR1020137030969A KR20140030205A (ko) | 2011-05-17 | 2012-05-15 | 광학 부재용 점착제 조성물 및 그 가공 제품 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-110187 | 2011-05-17 | ||
| JP2011110187A JP5887066B2 (ja) | 2011-05-17 | 2011-05-17 | 光学部材用粘着剤組成物およびその加工製品 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012157630A1 true WO2012157630A1 (ja) | 2012-11-22 |
Family
ID=47176947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/062374 Ceased WO2012157630A1 (ja) | 2011-05-17 | 2012-05-15 | 光学部材用粘着剤組成物およびその加工製品 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9080085B2 (ja) |
| EP (1) | EP2711403A4 (ja) |
| JP (1) | JP5887066B2 (ja) |
| KR (1) | KR20140030205A (ja) |
| CN (1) | CN103534326B (ja) |
| TW (1) | TWI525169B (ja) |
| WO (1) | WO2012157630A1 (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014114334A (ja) * | 2012-12-06 | 2014-06-26 | Nippon Carbide Ind Co Inc | 偏光板用粘着剤組成物、粘着剤付偏光板及び表示装置 |
| JP2014115348A (ja) * | 2012-12-06 | 2014-06-26 | Nippon Carbide Ind Co Inc | 偏光板用粘着剤組成物、粘着剤付偏光板及び表示装置 |
| WO2014167890A1 (ja) * | 2013-04-08 | 2014-10-16 | 綜研化学株式会社 | 無溶剤型光学用接着剤組成物およびその製造方法、光学用粘着シート、画像表示装置、出入力装置、ならびに接着剤層の製造方法 |
| US20160160096A1 (en) * | 2013-07-09 | 2016-06-09 | Nitto Denko Corporation | Pressure-sensitive adhesive composition |
| EP3040393A4 (en) * | 2013-08-26 | 2017-03-22 | Japan Science and Technology Agency | Adhesive |
| JP2018111774A (ja) * | 2017-01-12 | 2018-07-19 | サイデン化学株式会社 | 光学用粘着剤組成物及び該組成物を用いてなる光学機能性フィルム |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6026260B2 (ja) * | 2012-12-17 | 2016-11-16 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| JP6013898B2 (ja) * | 2012-12-17 | 2016-10-25 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| JP5901548B2 (ja) * | 2013-01-17 | 2016-04-13 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| JP6422270B2 (ja) * | 2013-08-29 | 2018-11-14 | 日本カーバイド工業株式会社 | 偏光板用粘着剤組成物、粘着剤付偏光板及び表示装置 |
| JP6002701B2 (ja) * | 2014-01-27 | 2016-10-05 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| TWI645010B (zh) * | 2014-03-17 | 2018-12-21 | 日商住友化學股份有限公司 | 附黏著劑之樹脂膜及使用該樹脂膜之光學積層體 |
| JP6106205B2 (ja) * | 2014-03-31 | 2017-03-29 | 日東電工株式会社 | 光学フィルム用粘着剤組成物、光学フィルム用粘着剤層、粘着剤層付光学フィルムおよび画像表示装置 |
| KR101716545B1 (ko) | 2014-06-30 | 2017-03-15 | 제일모직주식회사 | 광학부재용 점착제 조성물, 이를 포함하는 광학부재 및 이를 포함하는 광학표시장치 |
| KR101706820B1 (ko) * | 2014-07-03 | 2017-02-14 | 삼성에스디아이 주식회사 | 액정표시장치용 모듈 및 이를 포함하는 액정표시장치 |
| KR101816966B1 (ko) | 2014-08-04 | 2018-01-09 | 주식회사 엘지화학 | 점착제 조성물 |
| JP2016162714A (ja) * | 2015-03-05 | 2016-09-05 | セイコーエプソン株式会社 | 照明装置、表示装置および携帯用電子機器 |
| JP6182174B2 (ja) | 2015-03-31 | 2017-08-16 | 日東電工株式会社 | 粘着剤組成物、粘着剤層、粘着剤層付偏光フィルム、及び画像表示装置 |
| JP6705634B2 (ja) * | 2015-09-29 | 2020-06-03 | 日東電工株式会社 | 光学フィルム用粘着剤組成物、光学フィルム用粘着剤層、粘着剤層付光学フィルムおよび画像表示装置 |
| JP6233992B2 (ja) * | 2016-09-02 | 2017-11-22 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| JP6363772B2 (ja) * | 2017-07-21 | 2018-07-25 | 日東電工株式会社 | 粘着剤組成物、粘着剤層、粘着剤層付偏光フィルム、及び画像表示装置 |
| JP6644129B2 (ja) * | 2018-12-27 | 2020-02-12 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| JP6703158B2 (ja) * | 2019-03-13 | 2020-06-03 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| CN112852321A (zh) * | 2019-11-28 | 2021-05-28 | 湖南尚鑫新材料科技有限公司 | 电子液晶屏用耐刮保护膜及其制备方法 |
| JP7092823B2 (ja) * | 2020-04-07 | 2022-06-28 | 藤森工業株式会社 | 粘着剤層、及び粘着フィルム |
| JP7005684B2 (ja) * | 2020-05-07 | 2022-01-21 | 藤森工業株式会社 | 粘着フィルム、及び粘着剤層付き光学フィルム |
| JP2020139160A (ja) * | 2020-05-12 | 2020-09-03 | 日東電工株式会社 | 光学フィルム用粘着剤組成物、光学フィルム用粘着剤層、粘着剤層付光学フィルムおよび画像表示装置 |
| JP7223095B2 (ja) * | 2020-06-16 | 2023-02-15 | 藤森工業株式会社 | 粘着フィルム |
| WO2022130747A1 (ja) * | 2020-12-14 | 2022-06-23 | 綜研化学株式会社 | 粘着剤組成物および粘着剤層含有偏光板 |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08193114A (ja) | 1994-11-16 | 1996-07-30 | Nippon Polyurethane Ind Co Ltd | 変性ポリイソシアネート混合物の製造方法 |
| JP2003013029A (ja) * | 2001-07-02 | 2003-01-15 | Nitto Denko Corp | 粘着剤、粘着部材及び表示装置 |
| JP2005247909A (ja) | 2004-03-02 | 2005-09-15 | Saiden Chemical Industry Co Ltd | 粘着剤組成物及び表面保護フィルム |
| JP2006137307A (ja) | 2004-11-12 | 2006-06-01 | Nissan Motor Co Ltd | 車両用ラゲッジルーム |
| JP2008156513A (ja) | 2006-12-25 | 2008-07-10 | Nitto Denko Corp | 混合物の硬化促進方法および粘着剤組成物の硬化促進方法 |
| WO2008143010A1 (ja) * | 2007-05-11 | 2008-11-27 | The Nippon Synthetic Chemical Industry Co., Ltd. | 粘着剤、粘着シートおよび粘着シートの製造方法、活性エネルギー線硬化用樹脂組成物 |
| JP2009126929A (ja) * | 2007-11-22 | 2009-06-11 | Cheil Industries Inc | 粘着剤組成物及び光学部材、表面保護シート |
| JP2009132752A (ja) | 2007-11-28 | 2009-06-18 | Cheil Industries Inc | 粘着剤組成物及び光学部材 |
| JP2009144145A (ja) * | 2007-11-19 | 2009-07-02 | Nippon Synthetic Chem Ind Co Ltd:The | 粘着剤、光学部材用粘着剤、及び粘着剤層付き光学部材 |
| JP2009173772A (ja) | 2008-01-24 | 2009-08-06 | Nitto Denko Corp | 光学部材用粘着剤組成物、光学部材用粘着剤層、粘着型光学部材、及び画像表示装置 |
| WO2012023567A1 (ja) * | 2010-08-19 | 2012-02-23 | 大同化成工業株式会社 | タッチパネル用粘着剤組成物に用いるアクリル系高分子化合物 |
| JP2012102322A (ja) * | 2010-10-12 | 2012-05-31 | Nippon Synthetic Chem Ind Co Ltd:The | 光学部材用粘着剤組成物、光学部材用粘着剤、粘着剤層付き光学部材および画像表示装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4134350B2 (ja) * | 2002-08-29 | 2008-08-20 | 綜研化学株式会社 | 光学部材用粘着剤及び該粘着剤を用いた光学部材 |
| TWI423995B (zh) | 2005-06-22 | 2014-01-21 | Nippon Polyurethane Kogyo Kk | A reaction catalyst for forming a isocyanurate link, and a method for producing the modified polyisocyanate mixture containing the isocyanurate link thereof |
| JP2007119667A (ja) * | 2005-10-31 | 2007-05-17 | Sumitomo Chemical Co Ltd | 粘着剤 |
| WO2007058277A1 (ja) | 2005-11-21 | 2007-05-24 | Soken Chemical & Engineering Co., Ltd. | 光学フィルム用粘着剤組成物および粘着シート、ならびにこれを用いた光学部材 |
| JP4780766B2 (ja) | 2006-03-27 | 2011-09-28 | 日東電工株式会社 | 光学用粘着剤、粘着剤付き光学フィルムおよび画像表示装置 |
-
2011
- 2011-05-17 JP JP2011110187A patent/JP5887066B2/ja active Active
-
2012
- 2012-05-15 KR KR1020137030969A patent/KR20140030205A/ko not_active Withdrawn
- 2012-05-15 CN CN201280023743.XA patent/CN103534326B/zh not_active Expired - Fee Related
- 2012-05-15 WO PCT/JP2012/062374 patent/WO2012157630A1/ja not_active Ceased
- 2012-05-15 EP EP12785531.0A patent/EP2711403A4/en not_active Withdrawn
- 2012-05-15 US US14/117,726 patent/US9080085B2/en active Active
- 2012-05-16 TW TW101117317A patent/TWI525169B/zh not_active IP Right Cessation
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08193114A (ja) | 1994-11-16 | 1996-07-30 | Nippon Polyurethane Ind Co Ltd | 変性ポリイソシアネート混合物の製造方法 |
| JP2003013029A (ja) * | 2001-07-02 | 2003-01-15 | Nitto Denko Corp | 粘着剤、粘着部材及び表示装置 |
| JP2005247909A (ja) | 2004-03-02 | 2005-09-15 | Saiden Chemical Industry Co Ltd | 粘着剤組成物及び表面保護フィルム |
| JP2006137307A (ja) | 2004-11-12 | 2006-06-01 | Nissan Motor Co Ltd | 車両用ラゲッジルーム |
| JP2008156513A (ja) | 2006-12-25 | 2008-07-10 | Nitto Denko Corp | 混合物の硬化促進方法および粘着剤組成物の硬化促進方法 |
| WO2008143010A1 (ja) * | 2007-05-11 | 2008-11-27 | The Nippon Synthetic Chemical Industry Co., Ltd. | 粘着剤、粘着シートおよび粘着シートの製造方法、活性エネルギー線硬化用樹脂組成物 |
| JP2009144145A (ja) * | 2007-11-19 | 2009-07-02 | Nippon Synthetic Chem Ind Co Ltd:The | 粘着剤、光学部材用粘着剤、及び粘着剤層付き光学部材 |
| JP2009126929A (ja) * | 2007-11-22 | 2009-06-11 | Cheil Industries Inc | 粘着剤組成物及び光学部材、表面保護シート |
| JP2009132752A (ja) | 2007-11-28 | 2009-06-18 | Cheil Industries Inc | 粘着剤組成物及び光学部材 |
| JP2009173772A (ja) | 2008-01-24 | 2009-08-06 | Nitto Denko Corp | 光学部材用粘着剤組成物、光学部材用粘着剤層、粘着型光学部材、及び画像表示装置 |
| WO2012023567A1 (ja) * | 2010-08-19 | 2012-02-23 | 大同化成工業株式会社 | タッチパネル用粘着剤組成物に用いるアクリル系高分子化合物 |
| JP2012102322A (ja) * | 2010-10-12 | 2012-05-31 | Nippon Synthetic Chem Ind Co Ltd:The | 光学部材用粘着剤組成物、光学部材用粘着剤、粘着剤層付き光学部材および画像表示装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2711403A4 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014114334A (ja) * | 2012-12-06 | 2014-06-26 | Nippon Carbide Ind Co Inc | 偏光板用粘着剤組成物、粘着剤付偏光板及び表示装置 |
| JP2014115348A (ja) * | 2012-12-06 | 2014-06-26 | Nippon Carbide Ind Co Inc | 偏光板用粘着剤組成物、粘着剤付偏光板及び表示装置 |
| WO2014167890A1 (ja) * | 2013-04-08 | 2014-10-16 | 綜研化学株式会社 | 無溶剤型光学用接着剤組成物およびその製造方法、光学用粘着シート、画像表示装置、出入力装置、ならびに接着剤層の製造方法 |
| US20160160096A1 (en) * | 2013-07-09 | 2016-06-09 | Nitto Denko Corporation | Pressure-sensitive adhesive composition |
| US9605189B2 (en) * | 2013-07-09 | 2017-03-28 | Nitto Denko Corporation | Pressure-sensitive adhesive composition |
| EP3040393A4 (en) * | 2013-08-26 | 2017-03-22 | Japan Science and Technology Agency | Adhesive |
| US10011671B2 (en) | 2013-08-26 | 2018-07-03 | Japan Science And Technology Agency | Adhesive |
| US10711083B2 (en) | 2013-08-26 | 2020-07-14 | Japan Science And Technology Agency | Adhesive |
| JP2018111774A (ja) * | 2017-01-12 | 2018-07-19 | サイデン化学株式会社 | 光学用粘着剤組成物及び該組成物を用いてなる光学機能性フィルム |
Also Published As
| Publication number | Publication date |
|---|---|
| US9080085B2 (en) | 2015-07-14 |
| JP5887066B2 (ja) | 2016-03-16 |
| EP2711403A4 (en) | 2015-03-04 |
| TW201300483A (zh) | 2013-01-01 |
| EP2711403A1 (en) | 2014-03-26 |
| CN103534326B (zh) | 2015-09-30 |
| US20140073733A1 (en) | 2014-03-13 |
| CN103534326A (zh) | 2014-01-22 |
| KR20140030205A (ko) | 2014-03-11 |
| TWI525169B (zh) | 2016-03-11 |
| JP2012242473A (ja) | 2012-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5887066B2 (ja) | 光学部材用粘着剤組成物およびその加工製品 | |
| TWI388642B (zh) | 光學膜用黏著劑組成物、黏著片及使用該黏著劑組成物之光學構件 | |
| JP5683370B2 (ja) | 粘着剤組成物及び表面保護フィルム | |
| JP5972326B2 (ja) | 粘着剤組成物及び光学フィルム | |
| JP4803524B2 (ja) | 光学部材用粘着剤及び該粘着剤を設けた光学部材 | |
| JP5505766B2 (ja) | 偏光板用粘着剤組成物およびこれを利用した偏光板 | |
| KR101587804B1 (ko) | 편광판용 점착제 조성물 및 이것을 이용한 편광판 | |
| CN103131357B (zh) | 粘合剂组合物及表面保护膜 | |
| TWI545167B (zh) | Adhesive composition, adhesive film and surface protective film | |
| CN102131880A (zh) | 粘合剂组合物、粘合剂以及光学膜 | |
| JP2012158702A (ja) | 光学フィルム用粘着剤組成物及びその加工品 | |
| CN101309991A (zh) | 用于偏振膜的丙烯酸压敏粘合剂组合物 | |
| JP2015193711A (ja) | 粘着剤組成物、粘着偏光板及び液晶表示装置 | |
| JP2010095603A (ja) | 粘着剤組成物及び光学フィルム | |
| KR20120038633A (ko) | 점착제 조성물, 이를 포함하는 편광판 및 액정표시장치 | |
| JP6422270B2 (ja) | 偏光板用粘着剤組成物、粘着剤付偏光板及び表示装置 | |
| CN105524577A (zh) | 粘合剂组合物和粘合片 | |
| JP6600914B2 (ja) | 偏光板用粘着剤組成物 | |
| KR20090061359A (ko) | 아크릴계 점착제 조성물 | |
| KR101881186B1 (ko) | 점착제 조성물 | |
| TWI637973B (zh) | 丙烯酸共聚物和包含丙烯酸共聚物的黏著劑組合物 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12785531 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2012785531 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 14117726 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 20137030969 Country of ref document: KR Kind code of ref document: A |