WO2017130444A1 - 応力分散フィルム、光学部材、および電子部材 - Google Patents

応力分散フィルム、光学部材、および電子部材 Download PDF

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Publication number
WO2017130444A1
WO2017130444A1 PCT/JP2016/073903 JP2016073903W WO2017130444A1 WO 2017130444 A1 WO2017130444 A1 WO 2017130444A1 JP 2016073903 W JP2016073903 W JP 2016073903W WO 2017130444 A1 WO2017130444 A1 WO 2017130444A1
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Prior art keywords
sensitive adhesive
pressure
weight
meth
adhesive composition
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PCT/JP2016/073903
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English (en)
French (fr)
Japanese (ja)
Inventor
翔悟 佐々木
創矢 徐
浩司 設樂
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日東電工株式会社
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Priority to KR1020187022747A priority Critical patent/KR102035955B1/ko
Priority to SG11201800572XA priority patent/SG11201800572XA/en
Priority to KR1020187009833A priority patent/KR101888341B1/ko
Priority to CN201680058899.XA priority patent/CN108138004B/zh
Priority to KR1020187003184A priority patent/KR101888811B1/ko
Publication of WO2017130444A1 publication Critical patent/WO2017130444A1/ja

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    • 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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/241—Polyolefin, e.g.rubber
    • C09J7/243—Ethylene or propylene 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • C09J133/02—Homopolymers or copolymers of acids; Metal or ammonium salts 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • C—CHEMISTRY; METALLURGY
    • 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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]
    • 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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • 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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/255—Polyesters
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/414—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of a copolymer
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • C09J2423/046—Presence of homo or copolymers of ethene in the substrate
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • 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
    • C09J2463/00—Presence of epoxy resin
    • 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
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate
    • 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
    • C09J2475/00—Presence of polyurethane
    • 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
    • C09J2477/00—Presence of polyamide
    • C09J2477/006—Presence of polyamide in the substrate
    • C—CHEMISTRY; METALLURGY
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    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2479/00—Presence of polyamine or polyimide
    • C09J2479/08—Presence of polyamine or polyimide polyimide
    • C09J2479/086—Presence of polyamine or polyimide polyimide in the substrate

Definitions

  • the present invention relates to a stress dispersion film, and an optical member and an electronic member provided with the stress dispersion film.
  • An optical film or electronic member such as a touch panel using an LCD, a lens part of a camera, or an electronic device may have an adhesive film attached to the exposed surface side in order to provide rigidity and impact resistance.
  • Such an adhesive film usually has a base material layer and an adhesive layer.
  • optical member and electronic member as described above may be subjected to a load due to the pushing force in various situations such as assembly, processing, transportation, and use, and the optical member and electronic member may be damaged by the load. Problem arises.
  • An object of the present invention is to provide a stress dispersion film having excellent stress dispersion properties. Moreover, it is providing the optical member and electronic member provided with such a stress dispersion film.
  • the stress dispersion film of the present invention is A stress dispersion film comprising a laminate of a plastic film and an adhesive layer,
  • the indentation energy when a load is applied in a direction perpendicular to the laminate from the plastic film side of the laminate is 260 ⁇ J or more.
  • the plastic film has a thickness of 4 ⁇ m to 500 ⁇ m.
  • the pressure-sensitive adhesive layer has a thickness of 1 ⁇ m to 300 ⁇ m.
  • the pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive composition
  • the pressure-sensitive adhesive composition is derived from a (meth) acrylic acid alkyl ester having an alkyl group having 1 to 20 carbon atoms as an alkyl ester moiety.
  • the molar content of NCO groups in the pressure-sensitive adhesive composition is [NCO]
  • the molar content of epoxy groups in the pressure-sensitive adhesive composition is [epoxy]
  • the pressure-sensitive adhesive composition When the molar content of OH groups in the solvent is [OH] and the molar content of COOH groups in the pressure-sensitive adhesive composition is [COOH], ([NCO] + [epoxy]) / ([OH] + [COOH]) ⁇ 0.05.
  • the pressure-sensitive adhesive composition contains a bifunctional or higher functional organic polyisocyanate crosslinking agent and / or an epoxy crosslinking agent.
  • the pressure-sensitive adhesive composition has a monomer unit derived from an alicyclic structure-containing (meth) acrylic acid ester represented by the general formula (1), and has a weight average molecular weight of 1000 or more and 30000. Less than the polymer (B).
  • CH 2 C (R 1 ) COOR 2 (1)
  • R 1 is a hydrogen atom or a methyl group
  • R 2 is a hydrocarbon group having an alicyclic structure.
  • the loss tangent tan ⁇ of the pressure-sensitive adhesive layer in the entire temperature range of ⁇ 40 ° C. to 150 ° C. is 0.10 or more.
  • the optical member of the present invention includes the stress dispersion film.
  • the electronic member of the present invention includes the stress dispersion film.
  • a stress dispersion film having excellent stress dispersion can be provided.
  • the optical member and electronic member provided with such a stress dispersion film can be provided.
  • the expression “(meth) acryl” means “acryl and / or methacryl”, and the expression “(meth) acrylate” means “acrylate and / or methacrylate”. "Means.
  • weight when there is an expression “weight” in the present specification, it may be read as “mass” which is commonly used as an SI system unit indicating weight.
  • the monomer unit (A) has an unsaturated double bond of the monomer (a). It is a structural unit formed by cleavage by polymerization.
  • the content ratio of the monomer unit in the polymer can be known, for example, by various structural analyzes (for example, NMR) of the polymer.
  • the content ratio of monomer units derived from the various monomers calculated based on the use amount of the various monomers used in producing the polymer without performing the various structural analyzes as described above. It is good also as a content rate of the monomer unit in a polymer. That is, the content ratio of a certain monomer (m) in the total monomer components used in producing the polymer is the content ratio of the monomer unit derived from the monomer (m) in the polymer. May be treated as
  • the stress dispersion film of the present invention includes a laminate of a plastic film and an adhesive layer.
  • the plastic film may be a single layer or two or more layers.
  • the pressure-sensitive adhesive layer may be one layer or two or more layers.
  • FIG. 1 is a schematic cross-sectional view of a stress dispersion film according to an embodiment of the present invention.
  • the stress dispersion film 100 of the present invention comprises a laminate of a plastic film 10 and an adhesive layer 20.
  • any appropriate strong adhesive layer may be provided on the surface of the pressure-sensitive adhesive layer 20.
  • FIG. 2 is a schematic sectional view of a stress dispersion film according to another embodiment of the present invention.
  • the stress dispersion film 100 of the present invention comprises an adhesive layer 20, a plastic film 10, and an adhesive layer 20, and has the adhesive layer 20, the plastic film 10, and the adhesive layer 20 in this order. That is, in FIG. 2, the stress dispersion film 100 of the present invention is composed of a pressure-sensitive adhesive layer 20 and a laminate of the plastic film 10 and the pressure-sensitive adhesive layer 20.
  • any appropriate strong adhesive layer may be provided on the surface of the pressure-sensitive adhesive layer 20 on one side or both sides.
  • any appropriate separator may be provided on the exposed surface side.
  • the stress dispersion film of the present invention has an indentation energy of 260 ⁇ J or more when a load is applied in a direction perpendicular to the laminate from the plastic film side of the laminate of the plastic film and the adhesive layer.
  • the method for measuring the indentation energy will be described later.
  • the indentation energy is preferably 260 ⁇ J to 10,000 ⁇ J, more preferably 270 ⁇ J to 9000 ⁇ J, still more preferably 280 ⁇ J to 8000 ⁇ J, and particularly preferably 290 ⁇ J to 7000 ⁇ J.
  • a stress dispersion film having excellent stress dispersibility can be provided.
  • the thickness of the plastic film is preferably 4 ⁇ m to 500 ⁇ m, more preferably 10 ⁇ m to 400 ⁇ m, still more preferably 15 ⁇ m to 350 ⁇ m, and particularly preferably 20 ⁇ m to 300 ⁇ m.
  • a stress dispersion film having more excellent stress dispersion can be provided.
  • the thickness of the pressure-sensitive adhesive layer is preferably 1 ⁇ m to 300 ⁇ m, more preferably 2 ⁇ m to 250 ⁇ m, still more preferably 4 ⁇ m to 200 ⁇ m, and particularly preferably 5 ⁇ m to 150 ⁇ m.
  • a stress dispersion film having more excellent stress dispersion can be provided.
  • plastic films are, for example, compressive strength in the ASTM D695 is preferably 100Kg / cm 2 ⁇ 3000Kg / cm 2, more preferably 200Kg / cm 2 ⁇ 2900Kg / cm 2, more preferably It was 300Kg / cm 2 ⁇ 2800Kg / cm 2, particularly preferably 400Kg / cm 2 ⁇ 2700Kg / cm 2.
  • specific examples of such plastic films include polyester resins, polyolefin resins, polyamide resins, polyimide resins, and the like. Examples of the polyester resin include polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate.
  • polyolefin resin examples include olefin monomer homopolymers, olefin monomer copolymers, and the like.
  • polyolefin resins include homopolypropylene; block-type, random-type, and graft-type propylene copolymers having an ethylene component as a copolymer component; reactor TPO; low density, high density, linear Low density, ultra-low density, etc.
  • ethylene polymers ethylene / propylene copolymer, ethylene / vinyl acetate copolymer, ethylene / methyl acrylate copolymer, ethylene / ethyl acrylate copolymer, ethylene / acrylic acid And ethylene copolymers such as butyl copolymer, ethylene / methacrylic acid copolymer, and ethylene / methyl methacrylate copolymer.
  • the plastic film may contain any appropriate additive as required.
  • the additive that can be contained in the plastic film include an antioxidant, an ultraviolet absorber, a light stabilizer, an antistatic agent, a filler, and a pigment.
  • the kind, number, and amount of additives that can be contained in the plastic film can be appropriately set depending on the purpose.
  • any appropriate pressure-sensitive adhesive layer can be adopted as long as the effects of the present invention are not impaired.
  • Examples of such an adhesive layer include an adhesive layer formed from an acrylic adhesive, an adhesive layer formed from a rubber adhesive, an adhesive layer formed from a silicone adhesive, and a urethane adhesive. And an adhesive layer formed from the agent.
  • the pressure-sensitive adhesive layer is preferably formed from a pressure-sensitive adhesive composition.
  • a pressure-sensitive adhesive composition is applied on any appropriate base material and dried as necessary to form a pressure-sensitive adhesive layer on the base material. Then, if a base material is peeled, an adhesive layer will be obtained. Further, for example, the adhesive composition is applied on any appropriate plastic film, dried as necessary, an adhesive layer is formed on the plastic film, and the plastic film is left as it is. A stress dispersion film including a plastic film is obtained.
  • a pressure-sensitive adhesive layer obtained by applying a pressure-sensitive adhesive composition on any appropriate base material, drying as necessary, forming a pressure-sensitive adhesive layer on the base material, and peeling the base material
  • a stress dispersion film including an adhesive layer and a plastic film is obtained.
  • the pressure-sensitive adhesive composition is applied on any appropriate base material, dried as necessary, a pressure-sensitive adhesive layer is formed on the base material, and the pressure-sensitive adhesive layer formed on the base material is plastic.
  • a stress dispersion film including an adhesive layer and a plastic film is obtained.
  • Examples of the method for applying the pressure-sensitive adhesive composition include roll coating, gravure coating, reverse coating, roll brushing, spray coating, air knife coating, extrusion coating using a die coater, and the like.
  • Such a pressure-sensitive adhesive composition is preferably a monomer unit (I) derived from (meth) acrylic acid alkyl ester having an alkyl group having 1 to 20 carbon atoms as an alkyl ester moiety, and an OH group and / or Or a polymer (A) having a monomer unit (II) derived from a (meth) acrylic acid ester having a COOH group.
  • the content ratio of the polymer (A) in the pressure-sensitive adhesive composition is preferably 80% by weight to 100% by weight, more preferably 85% by weight to 100% by weight, and further preferably 90% by weight to 100% by weight. % By weight, particularly preferably 92.5% by weight to 100% by weight, and most preferably 95% by weight to 100% by weight.
  • a stress dispersion film having more excellent stress dispersibility can be provided.
  • the polymer (A) has a monomer unit (I) derived from (meth) acrylic acid alkyl ester having an alkyl group having 1 to 20 carbon atoms as an alkyl ester moiety.
  • the monomer unit (I) derived from the (meth) acrylic acid alkyl ester having an alkyl group having 1 to 20 carbon atoms as the alkyl ester moiety may be only one kind, Two or more types may be used.
  • the content ratio of the monomer unit (I) derived from the (meth) acrylic acid alkyl ester having an alkyl group having 1 to 20 carbon atoms as the alkyl ester moiety in the polymer (A) is preferably 90 wt% to 99 0.5 wt%, more preferably 91 wt% to 99 wt%, further preferably 92 wt% to 98.5 wt%, particularly preferably 93 wt% to 98.2 wt%, Most preferably, it is 94 to 98% by weight.
  • the content ratio of the monomer unit (I) derived from the (meth) acrylic acid alkyl ester having an alkyl group having 1 to 20 carbon atoms as the alkyl ester moiety is within the above range.
  • a stress dispersion film having more excellent stress dispersion can be provided.
  • Examples of the (meth) acrylic acid alkyl ester having an alkyl group having 1 to 20 carbon atoms as the alkyl ester moiety include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, s-butyl ( (Meth) acrylate, t-butyl (meth) acrylate, isobutyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, n-octyl (meth) acrylate, isooctyl (meth) acrylate, n-nonyl (Meth) acrylate, isononyl (meth) acrylate, n-decyl (meth) acrylate, isodecyl (meth) acrylate, n-dodecyl (meth) acryl
  • the polymer (A) has a monomer unit (II) derived from a (meth) acrylic acid ester having an OH group and / or a COOH group in the molecule.
  • the monomer unit (II) derived from the (meth) acrylic acid ester having an OH group and / or a COOH group in the molecule may be only one type, or two or more types. It may be.
  • the polymer (A) has a more excellent stress dispersibility by having a monomer unit (II) derived from a (meth) acrylic acid ester having an OH group and / or a COOH group in the molecule. Can be provided.
  • the content ratio of the monomer unit (II) derived from the (meth) acrylic acid ester having an OH group and / or a COOH group in the molecule in the polymer (A) is preferably 0.5% by weight to 10% by weight. %, More preferably 1% to 9% by weight, still more preferably 1.5% to 8% by weight, particularly preferably 1.8% to 7% by weight, most preferably 2 to 6% by weight.
  • the content ratio of the monomer unit (II) derived from the (meth) acrylic acid ester having an OH group and / or a COOH group in the molecule is in the above range, so that it is more excellent.
  • a stress dispersion film having stress dispersibility can be provided.
  • Examples of (meth) acrylic acid ester having an OH group in the molecule include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl ( (Meth) acrylate, 8-hydroxyoctyl (meth) acrylate, 10-hydroxydecyl (meth) acrylate, 12-hydroxylauryl (meth) acrylate, (4-hydroxymethylcyclohexyl) methyl acrylate, N-methylol (meth) acrylamide, vinyl Examples include alcohol, allyl alcohol, 2-hydroxyethyl vinyl ether, 4-hydroxybutyl vinyl ether, and diethylene glycol monovinyl ether.
  • Examples of (meth) acrylic acid ester having a COOH group in the molecule include, for example, meth) acrylic acid, carboxyethyl (meth) acrylate, carboxypentyl (meth) acrylate, itaconic acid, maleic acid, fumaric acid, crotonic acid, and isocrotone. An acid etc. are mentioned.
  • the polymer (A) may have a monomer unit (III) derived from another monomer.
  • the monomer unit (III) derived from other monomers in the polymer (A) may be only one type or two or more types.
  • Examples of other monomers include cyano group-containing monomers, vinyl ester monomers, aromatic vinyl monomers, amide group-containing monomers, imide group-containing monomers, amino group-containing monomers, epoxy group-containing monomers, vinyl ether monomers, and N-acryloyl.
  • Examples include morpholine, sulfo group-containing monomers, phosphate group-containing monomers, and acid anhydride group-containing monomers.
  • the molar content of NCO groups in the pressure-sensitive adhesive composition is [NCO]
  • the molar content of epoxy groups in the pressure-sensitive adhesive composition is [epoxy].
  • the molar content of OH groups of [OH] is [OH]
  • the molar content of COOH groups in the pressure-sensitive adhesive composition is [COOH]
  • ([NCO] + [epoxy]) / ([OH] + [COOH]) ⁇ 0.05.
  • ([NCO] + [epoxy]) / ([OH] + [COOH]) is in the above range, a stress dispersion film having more excellent stress dispersion can be provided.
  • the pressure-sensitive adhesive composition preferably contains a bifunctional or higher functional organic polyisocyanate crosslinking agent and / or an epoxy crosslinking agent.
  • the bifunctional or higher functional polyisocyanate-based cross-linking agent and / or epoxy-based cross-linking agent that may be included in the pressure-sensitive adhesive composition of the present invention may be one type or two or more types.
  • the total content of the bifunctional or higher functional polyisocyanate crosslinking agent and the epoxy crosslinking agent in the pressure-sensitive adhesive composition is preferably 0.001 part by weight to 100 parts by weight of the polymer (A). 0.4 part by weight, more preferably 0.0025 part by weight to 0.3 part by weight, still more preferably 0.005 part by weight to 0.2 part by weight, and particularly preferably 0.0075 part by weight. Is 0.15 parts by weight, and most preferably 0.01 parts by weight to 0.1 parts by weight.
  • Examples of the bifunctional or higher functional polyisocyanate-based crosslinking agent include lower aliphatic polyisocyanates such as butylene diisocyanate and hexamethylene diisocyanate; alicyclic isocyanates such as cyclopentylene diisocyanate, cyclohexylene diisocyanate, and isophorone diisocyanate; Aromatic isocyanates such as 2,4-tolylene diisocyanate, 4,4'-diphenylmethane diisocyanate, xylylene diisocyanate; trimethylolpropane / tolylene diisocyanate trimer adduct (for example, product name “ Coronate L "), trimethylolpropane / hexamethylene diisocyanate trimer adduct (for example, product name” Coronate HL "manufactured by Nippon Polyurethane Industry Co., Ltd.), Isocyanurate of hexamethylene diis
  • epoxy crosslinking agent examples include bisphenol A, epichlorohydrin type epoxy resin, ethylene glycidyl ether, polyethylene glycol diglycidyl ether, glycerin diglycidyl ether, glycerin triglycidyl ether, 1,6-hexanediol glycidyl ether, and trimethylol.
  • Propanetriglycidyl ether, diglycidyl aniline, diamine glycidyl amine, N, N, N ′, N′-tetraglycidyl-m-xylenediamine for example, trade name “TETRAD-X” manufactured by Mitsubishi Gas Chemical Co., Inc.
  • 1, Examples include 3-bis (N, N-diglycidylaminomethyl) cyclohexane (for example, trade name “TETRAD-C” manufactured by Mitsubishi Gas Chemical Company, Inc.).
  • the pressure-sensitive adhesive composition comprises a polymer (B) having a monomer unit derived from an alicyclic structure-containing (meth) acrylic acid ester represented by the general formula (1) and having a weight average molecular weight of 1,000 or more and less than 30,000. May be included.
  • CH 2 C (R 1 ) COOR 2 (1) (In general formula (1), R 1 is a hydrogen atom or a methyl group, and R 2 is a hydrocarbon group having an alicyclic structure.)
  • the polymer (B) may be only one type or two or more types.
  • the weight average molecular weight of the polymer (B) is preferably 1000 to 30000, more preferably 1250 to 25000, still more preferably 1500 to 20000, particularly preferably 1750 to 15000, and most preferably 2000. ⁇ 10000.
  • a stress dispersion film having more excellent stress dispersibility can be provided even if the amount of the crosslinking agent is increased.
  • the content of the polymer (B) in the pressure-sensitive adhesive composition is preferably 0.5 to 50 parts by weight, more preferably 1 to 45 parts by weight with respect to 100 parts by weight of the polymer (A). Parts by weight, more preferably 2 to 40 parts by weight, particularly preferably 3 to 35 parts by weight, and most preferably 4 to 30 parts by weight.
  • the content of the polymer (B) in the pressure-sensitive adhesive composition is within the above range with respect to 100 parts by weight of the polymer (A), even if the amount of the crosslinking agent is increased, more excellent stress dispersibility is obtained. It is possible to provide a stress dispersion film having the same.
  • the content of the monomer unit derived from the alicyclic structure-containing (meth) acrylic acid ester represented by the general formula (1) in the polymer (B) is preferably 40% by weight to 99.5% by weight. More preferably, it is 42.5 wt% to 99 wt%, further preferably 45 wt% to 98.5 wt%, particularly preferably 47.5 wt% to 98 wt%, and most preferably Is from 50% to 97.5% by weight.
  • the content of the monomer unit derived from the alicyclic structure-containing (meth) acrylic acid ester represented by the general formula (1) in the polymer (B) is within the above range, whereby the amount of the crosslinking agent. Even if it increases, the stress dispersion film which has the outstanding stress dispersion property can be provided.
  • Examples of the alicyclic structure-containing (meth) acrylic acid ester represented by the general formula (1) include cyclohexyl (meth) acrylate, dicyclopentanyl (meth) acrylate, dicyclopentanyloxyethyl methacrylate, Cyclopentanyloxyethyl acrylate, tricyclopentanyl methacrylate, tricyclopentanyl acrylate, 1-adamantyl methacrylate, 1-adamantyl acrylate, 2-methyl-2-adamantyl methacrylate, 2-methyl-2-adamantyl acrylate, 2-ethyl Examples include -2-adamantyl methacrylate and 2-ethyl-2-adamantyl acrylate.
  • the polymer (B) may have monomer units (IV) derived from other monomers.
  • the monomer unit (IV) derived from the other monomer in the polymer (B) may be only one kind or two or more kinds.
  • Examples of other monomers that can be contained in the polymer (B) include methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, s-butyl (meth) acrylate, and t-butyl.
  • the polymer (A) and the polymer (B) can be produced by any appropriate method as long as the effects of the present invention are not impaired. Examples of such production methods include solution polymerization, emulsion polymerization, bulk polymerization, suspension polymerization, photopolymerization (active energy ray polymerization), and the like. Among these production methods, solution polymerization is preferable from the viewpoint of cost and productivity.
  • the polymer (A) obtained may be any of a random copolymer, a block copolymer, an alternating copolymer, a graft copolymer, and the like.
  • the polymer (B) obtained may be any of a random copolymer, a block copolymer, an alternating copolymer, a graft copolymer and the like.
  • Examples of the solution polymerization method include a method in which a monomer component or a polymerization initiator is dissolved in a solvent and polymerized by heating to obtain a polymer solution.
  • Examples of the heating temperature at the time of polymerization by heating in solution polymerization include 50 ° C. to 90 ° C., for example.
  • Examples of the heating time in the solution polymerization include 1 to 24 hours.
  • any appropriate solvent can be used as long as the effects of the present invention are not impaired.
  • solvents include aromatic hydrocarbons such as toluene, benzene and xylene; esters such as ethyl acetate and n-butyl acetate; aliphatic hydrocarbons such as n-hexane and n-heptane; cyclohexane And organic solvents such as alicyclic hydrocarbons such as methylcyclohexane; ketones such as methyl ethyl ketone and methyl isobutyl ketone; One type of solvent may be sufficient and 2 or more types may be sufficient as it.
  • a polymerization initiator can be used. Only one kind of such polymerization initiator may be used, or two or more kinds thereof may be used. Examples of such a polymerization initiator include 2,2′-azobisisobutyronitrile, 2,2′-azobis (2-amidinopropane) dihydrochloride, 2,2′-azobis [2- (5- Methyl-2-imidazolin-2-yl) propane] dihydrochloride, 2,2′-azobis (2-methylpropionamidine) disulfate, 2,2′-azobis (N, N′-dimethyleneisobutylamidine), Azo-based initiators such as 2,2′-azobis [N- (2-carboxyethyl) -2-methylpropionamidine] hydrate (manufactured by Wako Pure Chemical Industries, Ltd., VA-057); potassium persulfate, ammonium persulfate, etc.
  • Arbitrary appropriate usage-amount can be employ
  • the amount used is, for example, preferably 0.01 to 5 parts by weight with respect to 100 parts by weight of the monomer component.
  • a chain transfer agent can be used in the production of the polymer (A) and the polymer (B).
  • a chain transfer agent may be only 1 type, and 2 or more types may be sufficient as it.
  • chain transfer agents include lauryl mercaptan, glycidyl mercaptan, mercaptoacetic acid, 2-mercaptoethanol, thioglycolic acid, methyl thioglycolate, 2-ethylhexyl thioglycolate, and 2,3-dimercapto-1-propanol. Is mentioned.
  • Arbitrary appropriate use amount can be employ
  • the amount used is, for example, preferably 0.01 to 5 parts by weight with respect to 100 parts by weight of the monomer component.
  • any other appropriate additive that can generally be used for the polymerization reaction can be used.
  • the pressure-sensitive adhesive composition of the present invention may contain a crosslinking catalyst.
  • a crosslinking catalyst Any appropriate crosslinking catalyst can be adopted as the crosslinking catalyst as long as the effects of the present invention are not impaired.
  • cross-linking catalysts include metal-based cross-linking catalysts (particularly tin-based cross-linking catalysts) such as tetra-n-butyl titanate, tetraisopropyl titanate, nursem ferric acid, butyl tin oxide, and dioctyl tin dilaurate. Only one type of crosslinking catalyst may be used, or two or more types may be used.
  • Arbitrary appropriate use amount can be employ
  • the amount used is, for example, preferably 0.001 to 0.05 parts by weight with respect to 100 parts by weight of the monomer component.
  • the pressure-sensitive adhesive composition may contain any appropriate other additive as long as the effects of the present invention are not impaired.
  • examples of such other additives include silane coupling agents, crosslinking retarders, emulsifiers, colorants, pigments and the like powders, dyes, surfactants, plasticizers, tackifiers, surface lubricants, Examples include leveling agents, softeners, antioxidants, antioxidants, light stabilizers, ultraviolet absorbers, polymerization inhibitors, inorganic fillers, organic fillers, metal powders, particles, and foils.
  • Such other additives may be only one kind or two or more kinds.
  • the pressure-sensitive adhesive layer has a loss tangent tan ⁇ in the whole temperature range of ⁇ 40 ° C. to 150 ° C., preferably 0.10 or more.
  • a stress dispersion film having more excellent stress dispersibility can be provided. A method for measuring the loss tangent tan ⁇ will be described later.
  • the upper limit of the loss tangent tan ⁇ in the entire temperature range of ⁇ 40 ° C. to 150 ° C. of the pressure-sensitive adhesive layer is preferably 2.40 or less, more preferably 2.20 or less, and further preferably 2.00 or less. Yes, particularly preferably 1.80 or less.
  • a stress dispersion film having more excellent stress dispersibility can be provided.
  • the lower limit of the loss tangent tan ⁇ in the entire temperature range of ⁇ 40 ° C. to 150 ° C. of the pressure-sensitive adhesive layer is preferably 0.12 or more, more preferably 0.14 or more, and further preferably 0.16 or more. Yes, particularly preferably 0.18 or more.
  • a stress dispersion film having more excellent stress dispersibility can be provided.
  • the stress dispersion film of the present invention has excellent stress dispersion. For this reason, it can use suitably as a protective material aiming at protecting an optical member or an electronic member from the impact from the outside. That is, the optical member of the present invention includes the stress dispersion film of the present invention.
  • the electronic member of the present invention includes the stress dispersion film of the present invention.
  • test and evaluation method in an Example etc. are as follows. Note that “parts” means “parts by weight” unless otherwise noted, and “%” means “% by weight” unless otherwise noted.
  • the weight average molecular weight (Mw) of the polymer was measured using a GPC apparatus (HLC-8220 GPC) manufactured by Tosoh Corporation. In addition, the weight average molecular weight (Mw) was calculated
  • the measurement conditions are as follows. Sample concentration: 0.2% by weight (THF solution) Sample injection volume: 10 ⁇ l eluent THF flow rate: 0.6 ml / min Measurement temperature: 40 ° C Sample column: TSKguardcolumn SuperHZ-H (1) + TSKgel SuperHZM-H (2) Reference column: TSKgel SuperH-RC (1 piece) Detector: Differential refractometer (RI)
  • ⁇ Preparation of adhesive sheet (A)> (Examples 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 26, Comparative Examples 1, 3, 5, 7)
  • the obtained pressure-sensitive adhesive composition was applied to a base material “Lumirror S10” (thickness 50 ⁇ m, manufactured by Toray Industries, Inc.) made of a polyester resin so that the thickness after drying with a fountain roll was 10 ⁇ m, a drying temperature of 130 ° C., and a drying time. It was cured and dried for 30 seconds. Thus, the adhesive layer was produced on the base material.
  • the surface of the pressure-sensitive adhesive layer was pasted with a silicone-treated surface of a base material made of a polyester resin having a thickness of 25 ⁇ m and subjected to silicone treatment on one surface to obtain a pressure-sensitive adhesive sheet (A).
  • a pressure-sensitive adhesive sheet A
  • the obtained pressure-sensitive adhesive composition was applied to a base material “Lumirror S10” (thickness 38 ⁇ m, manufactured by Toray Industries, Inc.) made of a polyester resin so that the thickness after drying with a fountain roll was 22 ⁇ m, a drying temperature of 130 ° C., and a drying time. It was cured and dried for 30 seconds.
  • the adhesive layer was produced on the base material. Subsequently, the surface of the pressure-sensitive adhesive layer was pasted with a silicone-treated surface of a base material made of a polyester resin having a thickness of 25 ⁇ m and subjected to silicone treatment on one surface to obtain a pressure-sensitive adhesive sheet (A).
  • Indentation energy was calculated according to the following procedure using a “SAICAS DN-20 type” manufactured by Daipura Wintes Co., Ltd. at a measurement temperature of 25 ° C. and an indentation speed of 5 ⁇ m / sec. (Procedure 1)
  • the pressure-sensitive adhesive layer side of the obtained pressure-sensitive adhesive sheet (A) was attached to a flat indenter (load detection side), and the base material side of the pressure-sensitive adhesive sheet (A) attached to the flat indenter was pushed into a spherical indenter.
  • the indentation depth ( ⁇ m) when the load was detected was calculated.
  • the obtained pressure-sensitive adhesive composition has a thickness of 50 ⁇ m after drying with a fountain roll on a release surface of a 38 ⁇ m-thick polyester film (trade name: MRF, manufactured by Mitsubishi Chemical Polyester Co., Ltd.) having one side peeled with silicone. Then, the coating was cured at a drying temperature of 130 ° C. and a drying time of 3 minutes, and dried. Thus, the adhesive layer was produced on the base material. Next, on the surface of the pressure-sensitive adhesive layer, a 38 ⁇ m thick polyester film (trade name: MRF, manufactured by Mitsubishi Chemical Polyester Co., Ltd.) having one surface peeled with silicone is placed so that the peel-treated surface of the film is on the pressure-sensitive adhesive layer side. And coated. In this way, an adhesive sheet (B) was produced.
  • MRF manufactured by Mitsubishi Chemical Polyester Co., Ltd.
  • Tg glass transition temperature
  • the measurement conditions are as follows. Measurement: shear mode, Temperature range: -70 ° C to 150 ° C Temperature increase rate: 5 ° C / min Frequency: 1Hz
  • Examples 1 and 2 Ethyl acetate in the solution of (meth) acrylic polymer (1) so that the total solid content is 25% by weight with respect to 100 parts by weight of the solid content of the solution of (meth) acrylic polymer (1).
  • the mixture was stirred with a disper to obtain an adhesive composition (1) containing an acrylic resin.
  • the results are shown in Table 1.
  • Examples 17 and 18 Ethyl acetate in the solution of (meth) acrylic polymer (2) so that the total solid content is 25% by weight with respect to 100 parts by weight of the solid content of the solution of (meth) acrylic polymer (2). And the mixture was stirred with a disper to obtain an adhesive composition (9) containing an acrylic resin. The results are shown in Table 2.
  • TETRAD-C (manufactured by Mitsubishi Gas Chemical Co., Ltd.) as a crosslinking agent is added to the solution of the (meth) acrylic polymer (5) with respect to 100 parts by weight of the solid content of the solution of the (meth) acrylic polymer (5).
  • Dilution with ethyl acetate and stirring with a disper gave pressure-sensitive adhesive composition (12) containing an acrylic resin. The results are shown in Table 2.
  • Example 25 With respect to 100 parts by weight of Hibler 5125 (manufactured by Kuraray), the mixture was diluted with toluene so that the total solid content was 25% by weight to obtain a pressure-sensitive adhesive composition (13) containing a rubber-based resin. The results are shown in Table 2.
  • Example 26 With respect to 100 parts by weight of Hibler 5127 (manufactured by Kuraray), it was diluted with toluene so that the total solid content was 25% by weight to obtain a pressure-sensitive adhesive composition (14) containing a rubber-based resin. The results are shown in Table 2.
  • TETRAD-C (manufactured by Mitsubishi Gas Chemical Co., Ltd.) as a crosslinking agent is added to the solution of the (meth) acrylic polymer (5) with respect to 100 parts by weight of the solid content of the solution of the (meth) acrylic polymer (5).
  • Example 27 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (1) obtained in Examples 1 and 2, the polyester film is peeled off from one side, and the polarized light which is an optical member An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • a plate manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”
  • Example 28 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (2) obtained in Examples 3 and 4, the polyester film is peeled off from one side, and the polarization is an optical member. An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • Example 29 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (4) obtained in Examples 7 and 8, the polyester film is peeled from one side, and the polarized light which is an optical member An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • a plate manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”
  • Example 30 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (7) obtained in Examples 13 and 14, the polyester film was peeled from one side, and the polarized light as an optical member An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • a plate manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”
  • Example 31 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (9) obtained in Examples 17 and 18, the polyester film was peeled off from one side, and the polarized light as an optical member An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • a plate manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”
  • Example 32 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (10) obtained in Examples 19 and 20, the polyester film was peeled off from one surface, and polarized light which was an optical member An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • Example 33 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (11) obtained in Examples 21 and 22, the polyester film was peeled off from one side, and the polarized light as an optical member An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • a plate manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”
  • Example 34 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (12) obtained in Examples 23 and 24, the polyester film was peeled from one side, and the polarized light as an optical member An optical member was obtained by sticking to a plate (manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”) and having an adhesive sheet attached thereto.
  • a plate manufactured by Nitto Denko Corporation, trade name “TEG1465DUHC”
  • Example 35 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (13) obtained in Example 25, the polyester film was peeled off from one side, and a polarizing plate (optical member) A product name “TEG1465DUHC” manufactured by Nitto Denko Corporation) was attached to obtain an optical member having an adhesive sheet attached thereto.
  • Example 36 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (14) obtained in Example 26, the polyester film was peeled off from one side, and a polarizing plate (optical member) A product name “TEG1465DUHC” manufactured by Nitto Denko Corporation) was attached to obtain an optical member having an adhesive sheet attached thereto.
  • Example 37 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (1) obtained in Examples 1 and 2, the polyester film is peeled off from one side, and the conductive material is an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 38 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (2) obtained in Examples 3 and 4, the polyester film was peeled off from one surface, and the conductive material as an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 39 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (4) obtained in Examples 7 and 8, the polyester film is peeled off from one surface, and the conductive material is an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 40 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (7) obtained in Examples 13 and 14, the polyester film is peeled off from one side, and the conductive material is an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 41 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (9) obtained in Examples 17 and 18, the polyester film was peeled off from one surface, and the conductive material as an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 42 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (10) obtained in Examples 19 and 20, the polyester film was peeled off from one surface, and the conductive material as an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 43 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (11) obtained in Examples 21 and 22, the polyester film was peeled off from one surface, and the conductive material as an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 44 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (12) obtained in Examples 23 and 24, the polyester film was peeled off from one surface, and the conductive material as an electronic member. Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Adhesive film (trade name “Electrista V270L-TFMP” manufactured by Nitto Denko Corporation) was attached to obtain an electronic member having an adhesive sheet attached thereto.
  • Example 45 For each of the pressure-sensitive adhesive sheet (A) and the pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (13) obtained in Example 25, the polyester film is peeled from one surface, and the conductive film is an electronic member. (Electronic member with a pressure-sensitive adhesive sheet attached) was obtained by attaching to Nitto Denko Corporation (trade name “Electrista V270L-TFMP”).
  • Example 46 For each of the pressure-sensitive adhesive sheet (A) and pressure-sensitive adhesive sheet (B) obtained from the pressure-sensitive adhesive composition (14) obtained in Example 26, the polyester film is peeled off from one surface, and the conductive film is an electronic member. (Electronic member with a pressure-sensitive adhesive sheet attached) was obtained by attaching to Nitto Denko Corporation (trade name “Electrista V270L-TFMP”).
  • the stress dispersion film of the present invention can be suitably used as a protective material for the purpose of protecting optical members and electronic members from external impacts, for example.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
PCT/JP2016/073903 2016-01-27 2016-08-16 応力分散フィルム、光学部材、および電子部材 WO2017130444A1 (ja)

Priority Applications (5)

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KR1020187022747A KR102035955B1 (ko) 2016-01-27 2016-08-16 응력 분산 필름, 광학 부재 및 전자 부재
SG11201800572XA SG11201800572XA (en) 2016-01-27 2016-08-16 Stress distributing film, optical member, and electronic member
KR1020187009833A KR101888341B1 (ko) 2016-01-27 2016-08-16 응력 분산 필름, 광학 부재 및 전자 부재
CN201680058899.XA CN108138004B (zh) 2016-01-27 2016-08-16 应力分散膜、光学构件、及电子构件
KR1020187003184A KR101888811B1 (ko) 2016-01-27 2016-08-16 응력 분산 필름, 광학 부재 및 전자 부재

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