WO2014038814A1 - Composition adhésive - Google Patents

Composition adhésive Download PDF

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Publication number
WO2014038814A1
WO2014038814A1 PCT/KR2013/007748 KR2013007748W WO2014038814A1 WO 2014038814 A1 WO2014038814 A1 WO 2014038814A1 KR 2013007748 W KR2013007748 W KR 2013007748W WO 2014038814 A1 WO2014038814 A1 WO 2014038814A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
acrylic copolymer
parts
group
adhesive composition
Prior art date
Application number
PCT/KR2013/007748
Other languages
English (en)
Korean (ko)
Inventor
최한영
권혜림
Original Assignee
동우화인켐 주식회사
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
Priority claimed from KR1020130101599A external-priority patent/KR20140031116A/ko
Application filed by 동우화인켐 주식회사 filed Critical 동우화인켐 주식회사
Publication of WO2014038814A1 publication Critical patent/WO2014038814A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • 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
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
    • 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
    • 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
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • 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
    • 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 excellent in preventing light leakage due to stress concentration and at the same time excellent durability and corrosion protection of the metal.
  • a liquid crystal display device In general, a liquid crystal display device (LCD) is provided with a liquid crystal cell and a polarizing plate containing a liquid crystal, and an appropriate pressure-sensitive adhesive layer for bonding them is used.
  • LCD liquid crystal display device
  • the polarizing plate is laminated with protective films such as triacetyl cellulose (TAC).
  • TAC triacetyl cellulose
  • it may additionally include a wide viewing angle compensation film and a functional film.
  • each film is made of a material having a different molecular structure and composition and thus have different physical properties.
  • dimensional stability due to shrinkage or expansion of materials having a unidirectional molecular arrangement is insufficient. Therefore, when the polarizing plate is fixed by the pressure-sensitive adhesive, stress is concentrated in the TAC layer by contraction or expansion of the polarizing plate under high temperature or high temperature and high humidity conditions, and thus the polarizing plate is bent, which causes a light leakage phenomenon.
  • Such warpage can be suppressed by adjusting the stress relaxation property of the pressure-sensitive adhesive fixed to the polarizing plate so that residual stress does not remain, and this can be achieved when the pressure-sensitive adhesive is a low-cost bridge.
  • a crosslinkable copolymer, a noncrosslinkable copolymer, and a crosslinking agent are contained, and an adhesive having a SEMI-INTER PENETRATING NETWORK structure has been proposed [Korean Patent No. 948,778].
  • the pressure-sensitive adhesive is excellent in fluidity and stress relaxation characteristics, but recently there was a limit that does not show the durability suitable for the trend of the size of the polarizing plate and thinning.
  • a pressure-sensitive adhesive having an INTER PENETRATING NETWORK structure containing a crosslinkable copolymer, a crosslinking agent, a polyfunctional acrylate monomer, and a photoinitiator has been proposed [Korean Patent No. 983,026].
  • the pressure-sensitive adhesive is able to implement the durability that can satisfy the recent trend, but it is difficult to secure the stress relaxation property there was a limit that warpage occurs.
  • the present invention is to provide a pressure-sensitive adhesive composition capable of effectively suppressing the corrosion of the metal layer without containing a corrosion inhibitor component and excellent durability, and also prevents light leakage phenomenon by reducing the occurrence of warpage by stress relaxation. .
  • the present invention provides an adhesive composition containing an acrylic copolymer having a primary alcohol group, an acrylic copolymer having a secondary alcohol group, a tolylene diisocyanate crosslinking agent and an aliphatic isocyanate crosslinking agent.
  • the acrylic copolymer having the primary alcohol group may be copolymerized by containing at least one monomer selected from Formulas 1 to 5 below.
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 2 to 12
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 12
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 10.
  • R 1 is a hydrogen atom or a methyl group
  • R 1 is a hydrogen atom or a methyl group
  • the acrylic copolymer having a primary alcohol group may contain a (meth) acrylate monomer having an alkyl group having 1 to 12 carbon atoms and at least one monomer selected from Formulas 1 to 5.
  • the at least one monomer selected from Formulas 1 to 5 may contain 0.1 to 10 parts by weight based on 100 parts by weight of the (meth) acrylate monomer having an alkyl group having 1 to 12 carbon atoms.
  • the acrylic copolymer having the secondary alcohol group may be copolymerized by containing at least one monomer selected from the following formulas (6) to (9).
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 10.
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 10.
  • R 1 is a hydrogen atom or a methyl group
  • R 2 is an alkyl group having 1 to 12 carbon atoms or an aryl group having 5 to 10 carbon atoms
  • R 1 is a hydrogen atom or a methyl group
  • R 2 is an alkyl group having 1 to 12 carbon atoms or an aryl group having 5 to 10 carbon atoms
  • the acrylic copolymer having a secondary alcohol group may contain a (meth) acrylate monomer having an alkyl group having 1 to 12 carbon atoms and at least one monomer selected from Formulas 6 to 9.
  • the at least one monomer selected from Formulas 6 to 9 may contain 0.01 to 5 parts by weight based on 100 parts by weight of the (meth) acrylate monomer having an alkyl group having 1 to 12 carbon atoms.
  • the pressure-sensitive adhesive composition of the present invention has the advantage of excellent durability as well as preventing light leakage due to stress concentration by reducing the occurrence of warpage by stress relaxation.
  • the pressure-sensitive adhesive composition of the present invention does not contain a corrosion inhibitor component separately, there is an advantage that can effectively suppress the corrosion of the metal layer.
  • the pressure-sensitive adhesive composition is expected to have high utility in fields such as polarizing plates and liquid crystal displays.
  • the present invention relates to a pressure-sensitive adhesive composition excellent in preventing light leakage due to stress concentration and at the same time excellent durability and corrosion protection of the metal.
  • the pressure-sensitive adhesive composition of the present invention contains an acrylic copolymer having a primary alcohol group, an acrylic copolymer having a secondary alcohol group, a tolylene diisocyanate crosslinking agent and an aliphatic isocyanate crosslinking agent.
  • an acrylic copolymer having a primary alcohol group and an acrylic copolymer having a secondary alcohol group form an inter penetrating network (IPN) structure.
  • IPN inter penetrating network
  • a crosslinking reaction is performed between a single type of acrylic copolymer by the relative steric hindrance of the crosslinking agent and the acrylic copolymer and the difference in the reaction rate of the crosslinking agent, and they are infiltrated between the crosslinked acrylic copolymers to form an IPN structure.
  • a crosslinking reaction is performed between a single type of acrylic copolymer by the relative steric hindrance of the crosslinking agent and the acrylic copolymer and the difference in the reaction rate of the crosslinking agent, and they are infiltrated between the crosslinked acrylic copolymers to form an IPN structure.
  • the present invention does not use radical crosslinking of a polyfunctional acrylate for forming an existing IPN structure, and forms an IPN structure by applying only urethane crosslinking having a small number of crosslinking functional groups and a relatively long crosslinking length, thereby forming an adhesive of a conventional IPN structure.
  • the stress relaxation property is improved and at the same time, the durability is excellent.
  • the acrylic copolymer having a primary alcohol group is copolymerized by containing at least one monomer selected from the following formulas (1) to (5).
  • At least one monomer selected from Formulas 1 to 5 is a crosslinkable monomer component that enhances cohesion or adhesive strength of the pressure-sensitive adhesive composition by chemical bonding to impart durability and cutting property.
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 2 to 12
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 12
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 10.
  • R 1 is a hydrogen atom or a methyl group
  • R 1 is a hydrogen atom or a methyl group
  • the acryl-type copolymer which has a primary alcohol group of this invention contains the (meth) acrylate monomer which has a C1-C12 alkyl group, and 1 or more types of monomers chosen from the said Formula (1-5).
  • (meth) acrylate means acrylate and methacrylate.
  • Examples of the (meth) acrylate monomer having an alkyl group having 1 to 12 carbon atoms include n-butyl (meth) acrylate, 2-butyl (meth) acrylate, t-butyl (meth) acrylate, and 2-ethylhexyl (meth).
  • the at least one monomer selected from Formulas 1 to 5 is preferably included in an amount of 0.1 to 10 parts by weight, more preferably 0.5 to 3 parts by weight, based on 100 parts by weight of the (meth) acrylate monomer having an alkyl group having 1 to 12 carbon atoms. Madam is good. If the content is less than 0.1 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 acrylic copolymer of the present invention may further contain other polymerizable monomers other than the above monomers in a range of not lowering the adhesive strength, for example, 10 parts by weight or less based on the total amount.
  • the production method of the copolymer is not particularly limited, and may be prepared using a method such as bulk polymerization, solution polymerization, emulsion polymerization or suspension polymerization, which are commonly used in the art, and solution polymerization is preferable.
  • a solvent, a polymerization initiator, a chain transfer agent for molecular weight control, and the like, which are usually used in the polymerization may be used.
  • the acrylic copolymer preferably has a weight average molecular weight (polystyrene equivalent, Mw) measured by gel permeation chromatography (GPC) of 50,000 to 2 million, more preferably 400,000 to 2 million. If the weight average molecular weight is less than 50,000, there is a lack of cohesion between the copolymers may cause problems in adhesion durability, if the weight average molecular weight is more than 2 million may require a large amount of dilution solvent to ensure fairness during coating.
  • Mw polystyrene equivalent
  • the acrylic copolymer having a secondary alcohol group is copolymerized by containing at least one monomer selected from the following formulas (6) to (9). At this time, the monomer of Formula 2 also serves as a crosslinkable monomer.
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 10.
  • R 1 is a hydrogen atom or a methyl group, n is an integer from 1 to 10.
  • R 1 is a hydrogen atom or a methyl group
  • R 2 is an alkyl group having 1 to 12 carbon atoms or an aryl group having 5 to 10 carbon atoms
  • R 1 is a hydrogen atom or a methyl group
  • R 2 is an alkyl group having 1 to 12 carbon atoms or an aryl group having 5 to 10 carbon atoms
  • 2-hydroxypropyl (meth) acrylate or 3-phenoxy-2-hydroxypropyl acrylate is preferable, and 2-hydroxypropyl (meth) ) Acrylate is more preferred.
  • the acryl-type copolymer which has a secondary alcohol group of this invention contains the (meth) acrylate monomer which has a C1-C12 alkyl group, and 1 or more types of monomers chosen from the said Formulas 6-9.
  • the at least one monomer selected from Chemical Formulas 6 to 9 is preferably included in an amount of 0.01 to 5 parts by weight, more preferably 0.05 to 3 parts by weight, based on 100 parts by weight of the (meth) acrylate monomer having an alkyl group having 1 to 12 carbon atoms. Madam is good. If the content is less than 0.01 parts by weight, the cohesive force of the pressure-sensitive adhesive may be reduced, the durability may be lowered, and if the content is more than 5 parts by weight, the lack of stress relaxation property may be concerned.
  • the kind of the (meth) acrylate monomer which has a C1-C12 alkyl group, the polymerization method, the weight average molecular weight of the produced acrylic copolymer, etc. are the same as the copolymer which has the said primary alcohol group.
  • the tolylene diisocyanate crosslinking agent and the aliphatic isocyanate crosslinking agent are components for enhancing the cohesive force of the pressure-sensitive adhesive by appropriately crosslinking the acrylic copolymer.
  • the tolylene diisocyanate-based crosslinking agent is involved in the crosslinking reaction of the acrylic copolymer having a primary alcohol group. Specifically, it may be in the form of an adduct of tolylene diisocyanate, isocyanurate thereof or polyhydric alcohol.
  • such tolylene diisocyanate type crosslinking agent contains 0.1-5 weight part with respect to 100 weight part of adhesive compositions. If the content is less than 0.1 part by weight may be a decrease in durability, if the content exceeds 5 parts by weight may be a concern of simultaneous degradation of durability and stress relaxation properties.
  • the aliphatic isocyanate crosslinking agent is involved in the crosslinking reaction of the acrylic copolymer having a secondary alcohol group. Specifically, it may be an adduct form of hexamethylene diisocyanate-based and isophorone diisocyanate-based, isocyanurate-based or polyhydric alcohols thereof.
  • 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, a light stabilizer, an antistatic agent, can be further contained.
  • the double silane coupling agent plays a role of improving adhesion between the pressure-sensitive adhesive and the base material, it is preferable to contain it, and an alkoxysilane containing functional groups such as amino group, epoxy group, acetoacetyl group, polyalkylene glycol group, acryl group and alkyl group Can be used.
  • the silane coupling agent may contain 0.1 to 2 parts by weight based on 100 parts by weight of the acrylic copolymer in consideration of adhesion and durability. have.
  • 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
  • MA methyl acrylate
  • 2-hydroxyethyl acrylate 1.0 in a 1 L reactor equipped with a refrigeration system to allow nitrogen gas to reflux and facilitate temperature control.
  • acetone 100 parts by weight of acetone was added as a solvent.
  • purging nitrogen gas for 1 hour to remove oxygen it was maintained at 55 °C.
  • 0.02 parts by weight of azobisisobutyronitrile (AIBN) was added as a reaction initiator, and reacted for 12 hours to have a primary alcohol group having a weight average molecular weight of about 1.5 million.
  • An acrylic copolymer was prepared.
  • n-butyl acrylate (BA) and 0.1 parts by weight of 2-hydroxypropyl acrylate was added to a 1 L reactor equipped with a cooling device. 100 parts by weight of acetone was added as a solvent. Then, after purging nitrogen gas for 1 hour to remove oxygen, it was maintained at 65 °C. After homogenizing the mixture, 0.1 part by weight of azobisisobutyronitrile (AIBN) was added as a reaction initiator, and reacted for 6 hours to have a secondary alcohol group having a weight average molecular weight of about 400,000. An acrylic copolymer was prepared.
  • AIBN azobisisobutyronitrile
  • an acrylic copolymer having a primary alcohol group an acrylic copolymer having a secondary alcohol group, a toluene diisocyanate-based (TDI) crosslinking agent, an aliphatic isocyanate-based crosslinking agent and a silane coupling agent (3-glycidoxypropyltrime Toxisilane, KBM-403 manufactured by Shin-Etsu Co., Ltd.) was mixed with 0.5 parts by weight based on 100 parts by weight of the acrylic copolymer, and then diluted in an organic solvent to prepare an adhesive composition.
  • TDI toluene diisocyanate-based
  • silane coupling agent 3-glycidoxypropyltrime Toxisilane, KBM-403 manufactured by Shin-Etsu Co., Ltd.
  • Example 2 In the same manner as in Example 1, but instead of the acrylic copolymer of B-1 to prepare a pressure-sensitive adhesive composition using an acrylic copolymer of D-1.
  • the pressure-sensitive adhesive composition prepared above was applied on a release film coated with a silicone release agent to have a thickness of 25 ⁇ m, dried at 100 ° C. for 1 minute, and photocured at 1000 mJ under a fusion lamp to form an adhesive layer.
  • a pressure-sensitive adhesive polarizing plate was prepared by laminating the pressure-sensitive adhesive layer prepared above on an iodine-based polarizing plate having a thickness of 185 ⁇ m.
  • the prepared polarizing plate was stored under curing conditions at 23 ° C. and 60% RH.
  • the prepared pressure-sensitive adhesive polarizing plate was bonded to one surface of 17-inch Corning glass and autoclaved. Then, the resultant was heat-treated at 80 ° C. for 100 hours, left at room temperature for 24 hours, and then placed on a flat surface to have a high flatness. The bending characteristic was confirmed by measuring the distance to a side. At this time, when the height is 10 mm or less, it is determined that the bending property is good.
  • the release film of the polarizing plate with pressure-sensitive adhesive was peeled off, the surface of the pressure-sensitive adhesive layer was bonded to Corning glass, and after standing at 60 ° C. for 300 hours, the appearance was confirmed (heat resistance test).
  • the adhesive layer was peeled from the said laminated body, the surface of the aluminum plate which contacted the said adhesive layer was visually observed, and the presence or absence of corrosion was evaluated.
  • the surface of the aluminum plate is not corroded at all: ⁇

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

La présente invention concerne une composition adhésive, et, plus particulièrement, une composition adhésive ayant des propriétés à la flexion améliorées en raison d'un soulagement des contraintes, permettant ainsi d'empêcher une fuite légère provoquée par la concentration des contraintes et ayant également une excellente durabilité et supprimant de façon efficace la corrosion d'une couche métallique sans contenir d'agent anticorrosion supplémentaire, la composition comprenant un copolymère à base acryle ayant un groupe alcool primaire, un copolymère à base acryle ayant un groupe alcool secondaire, un agent de réticulation à base de toluène diisocyanate et un agent de réticulation à base d'isocyanate aliphatique pour soulager les contraintes.
PCT/KR2013/007748 2012-09-04 2013-08-29 Composition adhésive WO2014038814A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2012-0097731 2012-09-04
KR20120097731 2012-09-04
KR10-2013-0101599 2013-08-27
KR1020130101599A KR20140031116A (ko) 2012-09-04 2013-08-27 점착제 조성물

Publications (1)

Publication Number Publication Date
WO2014038814A1 true WO2014038814A1 (fr) 2014-03-13

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PCT/KR2013/007748 WO2014038814A1 (fr) 2012-09-04 2013-08-29 Composition adhésive

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WO (1) WO2014038814A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011231288A (ja) * 2010-04-30 2011-11-17 Nitto Denko Corp 光学フィルム用粘着剤層、その製造方法、粘着型光学フィルム、及び画像表示装置
JP2011231189A (ja) * 2010-04-26 2011-11-17 Nippon Carbide Ind Co Inc 偏光板用粘着剤組成物、並びにそれを用いた粘着剤付偏光板及び液晶表示装置
JP2012118301A (ja) * 2010-12-01 2012-06-21 Toyo Ink Sc Holdings Co Ltd 光学フィルム並びに偏光板。
KR20120076267A (ko) * 2010-12-29 2012-07-09 제일모직주식회사 점착제 조성물 및 이를 이용한 광학 부재
US20120316294A1 (en) * 2011-06-08 2012-12-13 Hiroshi Ogawa Adhesive composition and optical member using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011231189A (ja) * 2010-04-26 2011-11-17 Nippon Carbide Ind Co Inc 偏光板用粘着剤組成物、並びにそれを用いた粘着剤付偏光板及び液晶表示装置
JP2011231288A (ja) * 2010-04-30 2011-11-17 Nitto Denko Corp 光学フィルム用粘着剤層、その製造方法、粘着型光学フィルム、及び画像表示装置
JP2012118301A (ja) * 2010-12-01 2012-06-21 Toyo Ink Sc Holdings Co Ltd 光学フィルム並びに偏光板。
KR20120076267A (ko) * 2010-12-29 2012-07-09 제일모직주식회사 점착제 조성물 및 이를 이용한 광학 부재
US20120316294A1 (en) * 2011-06-08 2012-12-13 Hiroshi Ogawa Adhesive composition and optical member using the same

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