WO2015182369A1 - 粘着剤組成物及びその製造方法、ならびに、粘着剤層及びその製造方法 - Google Patents

粘着剤組成物及びその製造方法、ならびに、粘着剤層及びその製造方法 Download PDF

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WO2015182369A1
WO2015182369A1 PCT/JP2015/063597 JP2015063597W WO2015182369A1 WO 2015182369 A1 WO2015182369 A1 WO 2015182369A1 JP 2015063597 W JP2015063597 W JP 2015063597W WO 2015182369 A1 WO2015182369 A1 WO 2015182369A1
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Prior art keywords
pressure
sensitive adhesive
component
block copolymer
mass
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PCT/JP2015/063597
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English (en)
French (fr)
Japanese (ja)
Inventor
洋平 金塚
貴美子 木口
政一 清水
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綜研化学株式会社
株式会社クラレ
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Priority to CN201580028882.5A priority Critical patent/CN106414643B/zh
Priority to KR1020167026560A priority patent/KR102340159B1/ko
Publication of WO2015182369A1 publication Critical patent/WO2015182369A1/ja

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    • 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
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • C08F297/04—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
    • C08F297/046—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes polymerising vinyl aromatic monomers and isoprene, optionally with other conjugated dienes
    • 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
    • C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
    • C09J153/02—Vinyl aromatic monomers and conjugated dienes
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/04—Reduction, e.g. hydrogenation
    • 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
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • 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
    • C09J125/00—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 an aromatic carbocyclic ring; Adhesives based on derivatives of such polymers
    • C09J125/02—Homopolymers or copolymers of hydrocarbons
    • C09J125/04—Homopolymers or copolymers of styrene
    • 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
    • C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
    • C09J153/02—Vinyl aromatic monomers and conjugated dienes
    • C09J153/025—Vinyl aromatic monomers and conjugated dienes modified
    • 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
    • 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
    • C09J7/387—Block-copolymers
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages

Definitions

  • the present invention relates to a pressure-sensitive adhesive composition and a production method thereof, and a pressure-sensitive adhesive layer and a production method thereof.
  • the hydrogenated block copolymer is used as a component of the pressure-sensitive adhesive composition.
  • the hydrogenated block copolymer is a hydrogenated product of a copolymer comprising a polymer block composed of monomer units derived from an aromatic vinyl compound and a polymer block B composed of monomer units derived from a conjugated diene compound.
  • a copolymer comprising a polymer block composed of monomer units derived from an aromatic vinyl compound and a polymer block B composed of monomer units derived from a conjugated diene compound.
  • This hydrogenated block copolymer is generally handled in the form of particles such as pellets, flakes or blocks.
  • the relatively soft hydrogenated block copolymer used in the pressure-sensitive adhesive has strong self-adhesiveness (self-blocking property)
  • the surface of the particle is blocked with an anti-blocking agent such as talc or organic polymer particles.
  • an anti-blocking agent such as talc or organic polymer particles.
  • the occurrence of dullness may occur remarkably when the pressure-sensitive adhesive composition or the pressure-sensitive adhesive layer is exposed to a high-temperature and high-humidity environment. For example, even if a slight dullness occurs when the pressure-sensitive adhesive composition or the pressure-sensitive adhesive layer is dissolved in a solvent at room temperature, the pressure-sensitive adhesive composition or the pressure-sensitive adhesive layer may be formed in a high-temperature and high-humidity environment. It may be dull that cannot be overlooked.
  • the present inventors diligently studied the composition of the pressure-sensitive adhesive composition containing the hydrogenated block copolymer, and found that the pressure-sensitive adhesive composition containing a specific material and the pressure-sensitive adhesive layer formed from the pressure-sensitive adhesive composition are high. It has been found that it has transparency and moist heat whitening resistance, and can impart excellent adhesion and step following ability by the additive components described later.
  • the present invention provides a pressure-sensitive adhesive composition capable of obtaining a pressure-sensitive adhesive layer having high transparency and excellent moisture and heat whitening resistance, a method for producing the same, and a pressure-sensitive adhesive layer and a method for producing the same. .
  • the pressure-sensitive adhesive composition according to one aspect of the present invention is (A) 100 parts by mass of a hydrogenated block copolymer composition; (B) 0.01 to 5 parts by mass of a compound having a molecular weight of 2,000 or less; (C) a pressure-sensitive adhesive composition comprising an aliphatic hydrocarbon and / or a solvent that is an aromatic hydrocarbon that is liquid at 23 ° C.
  • the (A) hydrogenated block copolymer composition comprises the hydrogenated product (1) of the block copolymer (a1) represented by the general formula (AB) n and the general formula ABAA or ( AB) Hydrogenated product of block copolymer (a2) represented by mX (2) (in the above formula, A is the same or different and consists of a monomer unit derived from an aromatic vinyl compound) Represents polymer block A, B is the same or different and represents polymer block B composed of monomer units derived from a conjugated diene compound, n represents an integer of 1 to 3, and m represents an integer
  • the pressure-sensitive adhesive composition according to 1 above further comprising (D) 5 parts by mass or more and 80 parts by mass or less of the first compatibilizer, wherein the (D) first compatibilizer is compatible with the polymer block A. And has a softening point of 80 ° C. or higher and can be dissolved in the solvent (C).
  • the (E) second compatibilizer is compatible with the polymer block B, is liquid at 23 ° C., and can be dissolved in the (C) solvent.
  • the (D) first compatibilizer may be an aromatic tackifying resin.
  • the aromatic tackifying resin is an aromatic petroleum resin, a styrene polymer, an ⁇ -methylstyrene polymer, or a styrene- ( ⁇ -methylstyrene) copolymer.
  • the aromatic tackifying resin is an aromatic petroleum resin, a styrene polymer, an ⁇ -methylstyrene polymer, or a styrene- ( ⁇ -methylstyrene) copolymer.
  • At least one selected from the group consisting of styrene-aliphatic hydrocarbon copolymers, styrene- ( ⁇ -methylstyrene) -aliphatic hydrocarbon copolymers, and styrene-aromatic hydrocarbon copolymers Can be.
  • the manufacturing method of the adhesive composition which concerns on 1 aspect of this invention is a manufacturing method of the adhesive composition in any one of said 1 thru
  • the manufacturing method of the adhesive layer which concerns on 1 aspect of this invention is the process of apply
  • the pressure-sensitive adhesive layer is (A) 100 parts by mass of a hydrogenated block copolymer composition; (B) A pressure-sensitive adhesive layer containing 0.01 to 5 parts by mass of a compound having a molecular weight of 2,000 or less,
  • the (A) hydrogenated block copolymer composition comprises the hydrogenated product (1) of the block copolymer (a1) represented by the general formula (AB) n and the general formula ABAA or ( AB) Hydrogenated product of block copolymer (a2) represented by mX (2) (in the above formula, A is the same or different and consists of a monomer unit derived from an aromatic vinyl compound) Represents polymer block A, B is the same or different and represents polymer block B composed of monomer units derived from a conjugated diene compound, n represents an integer of 1 to 3, and m represents an integer of 1 or more And X represents a coupling agent residue.)
  • the (A) hydrogenated block copolymer composition and the compound (B) are
  • the pressure-sensitive adhesive layer according to the above 12, can be obtained by removing the solvent (C) from the pressure-sensitive adhesive composition according to any one of the above 1 to 9.
  • the pressure-sensitive adhesive composition according to any one of 1 to 9 above, (A) 100 parts by mass of the hydrogenated block copolymer composition, and (B) 0.01 mass of a compound having a molecular weight of 2,000 or less. And (C) a hydrogenated block copolymer containing (C) a solvent that is an aliphatic hydrocarbon and / or an aromatic hydrocarbon that is liquid at 23 ° C. Since both the composition and the compound (B) are dissolved in the solvent (C), the composition is excellent in transparency. For this reason, after forming into a film using this adhesive composition, in the adhesive layer obtained by removing the said (C) solvent, it is excellent in the solubility of the said (B) compound, and this (B) compound Is difficult to precipitate. Thereby, the pressure-sensitive adhesive layer has high transparency and is excellent in moisture and heat whitening resistance. Moreover, the outstanding adhesiveness and level
  • the manufacturing method of the adhesive composition of said 10 including the process of dissolving said (A) hydrogenated block copolymer composition pellet in said (C) solvent, said (A) Since the hydrogenated block copolymer composition and the compound (B) can be dissolved in the solvent (C), a pressure-sensitive adhesive composition excellent in transparency can be obtained, followed by a pressure-sensitive adhesive composition. Even in the filtration process that is generally performed in the manufacturing process, and in the microfiltration process for optical applications that require more transparency, a smooth filtration operation is possible without causing clogging of the filtration device. .
  • the (A) hydrogenated block copolymer composition and the (B) compound are both (C) an aliphatic carbonization liquid at 23 ° C.
  • a solvent that is hydrogen and / or an aromatic hydrocarbon it can be used, for example, in an environment that requires transparency and wet heat whitening resistance.
  • FIG. 1 is a cross-sectional view schematically showing a configuration of an input / output device (touch panel type input / output device) according to an embodiment of the present invention.
  • parts means “parts by mass” and “%” means “mass%” unless otherwise specified.
  • the pressure-sensitive adhesive composition includes (A) a hydrogenated (hydrogenated) block copolymer composition (hereinafter simply referred to as “component (A)”). 100 parts by mass and (B) a compound having a molecular weight of 2,000 or less (hereinafter sometimes simply referred to as “component (B)”) 0.01 parts by mass or more and 5 parts by mass or less, (C) a solvent that is an aliphatic hydrocarbon and / or an aromatic hydrocarbon that is liquid at 23 ° C. (hereinafter sometimes simply referred to as “component (C)”).
  • component (A) a hydrogenated (hydrogenated) block copolymer composition
  • component (B) a compound having a molecular weight of 2,000 or less
  • component (C) a solvent that is an aliphatic hydrocarbon and / or an aromatic hydrocarbon that is liquid at 23 ° C.
  • the component (A) and the component (B) are both dissolved in the component (C).
  • “the (A) component and the (B) component are both dissolved in the (C) component” means that the (A) component or the (B) component is solid as a pressure-sensitive adhesive composition. It means that no dullness or cloudiness is observed in the pressure-sensitive adhesive composition. Specifically, it does not cause clogging when filtered through a filter paper having an opening of 1 ⁇ m, and a residue on the filter paper. It means that there is no.
  • the component (A) is a hydrogenated product of the block copolymer (a1) represented by the general formula (AB) n (hereinafter, simply referred to as “hydrogenated product (1)”).
  • hydrogenated product (1) the hydrogenated product (2) of the block copolymer (a2) represented by the general formula ABA or (AB) mX
  • hydroogenated product ( 2) “(in the above formula, A is the same or different, and represents a polymer block A composed of monomer units derived from an aromatic vinyl compound, and B is the same or different, respectively).
  • A represents a polymer block B composed of monomer units derived from a conjugated diene compound
  • n represents an integer of 1 to 3
  • m represents an integer of 1 or more
  • X represents a coupling agent residue. It consists of.
  • n can be 1, 2 or 3.
  • m which is an integer of 1 or more, is preferably 2 or more and 4 or less.
  • Hydrogenated product (1) and hydrogenated product (2) are thermoplastic elastomers.
  • the monomer unit derived from the aromatic vinyl compound is, for example, styrene, ⁇ -methyl styrene, o-methyl styrene, m-methyl styrene, p-methyl styrene, and p-tert-butyl styrene are preferable, and styrene and ⁇ -methyl styrene are more preferable (more preferably styrene).
  • the monomer unit derived from a conjugated diene compound is, for example, butadiene, Isoprene or a mixture of butadiene and isoprene is preferable, and isoprene is more preferable.
  • Examples of the coupling agent residue in the general formula (AB) mX include divinylbenzene; polyvalent epoxy compounds such as epoxidized 1,2-polybutadiene and epoxidized soybean oil; dimethyldichlorosilane, tri Halogen compounds such as chlorosilane, methyltrichlorosilane, and tetrachlorosilane; ester compounds such as methyl benzoate, ethyl benzoate, diethyl phthalate, dimethyl isophthalate, and dimethyl terephthalate; carbonate compounds such as dimethyl carbonate; dimethyldimethoxysilane, methyl
  • Examples include coupling agent residues derived from known coupling agents such as alkoxysilane compounds such as trimethoxysilane, methyltriethoxysilane, tetramethoxysilane, and tetraethoxysilane.
  • the mass ratio of the hydrogenated product (1) and the hydrogenated product (2) in the component (A) is that the adjustment of the viscoelasticity of the obtained pressure-sensitive adhesive layer is easy. Is preferably 90:10 to 10:90, more preferably 80:20 to 20:80, and still more preferably 70:30 to 30:70 (here, component (A) 100) In the case of mass%, the total amount of the hydrogenated product (1) and the hydrogenated product (2) is 100% by mass.)
  • the hydrogenated additive (1) and the hydrogenated additive (2) The mass ratio can be determined from an elution curve obtained by gel permeation chromatography (GPC) measurement.
  • the content of the polymer block A contained in the hydrogenated product (1) and the content of the polymer block A contained in the hydrogenated product (2) in that durability can be imparted to the pressure-sensitive adhesive composition according to this embodiment.
  • the amount can be 3% by mass or more and 40% by mass or less of the hydrogenated product (1) or the hydrogenated product (2), respectively, preferably 5% by mass or more and 30% by mass or less, and more preferably 10% by mass or more. More preferably, it is 20 mass% or less.
  • the content of block A can be determined from the measured value measured by a 1 H-NMR spectrum or the like.
  • the content of the polymer block B contained in the hydrogenated product (1) and the hydrogenated product (2) is such that the hydrogenated product can be imparted with a step following property to the pressure-sensitive adhesive composition according to the present embodiment.
  • (1) or the hydrogenated product (2) may be 60% by mass to 97% by mass, more preferably 70% by mass to 95% by mass, and more preferably 80% by mass to 90% by mass. More preferably.
  • the content of the block B can be determined from the measured value measured by a 1 H-NMR spectrum or the like.
  • the hydrogenated product (1) and the hydrogenated product (2) are carbon-carbon double bonds derived from the conjugated diene compound in the polymer block B in that weather resistance can be imparted to the pressure-sensitive adhesive composition according to this embodiment.
  • the hydrogenation rate is preferably 50% by weight or more (and 100% by weight or less), more preferably 80% by weight or more.
  • the hydrogenation rate can be determined from the measured values measured by 1 H-NMR spectrum before and after hydrogenation.
  • the hydrogenation rate of the carbon-carbon double bond derived from the conjugated diene compound in the polymer block B means that the carbon-carbon double bond derived from the conjugated diene compound is saturated by hydrogenation. Say percentage.
  • the weight average molecular weight of the hydrogenated product (1) is preferably 10,000 or more and 300,000 or less, and preferably 20,000 or more, from the viewpoint that the pressure-sensitive adhesive composition according to the present embodiment can impart more excellent step following ability. More preferably, it is more preferably 30,000 or more, more preferably 250,000 or less, and further preferably 200,000 or less.
  • the weight average molecular weight of the hydrogenated product (2) is preferably 50,000 or more and 500,000 or less, more preferably 80,000 or more, from the viewpoint that durability can be imparted to the pressure-sensitive adhesive composition according to this embodiment. More preferably, it is 100,000 or more, more preferably 400,000 or less, and further preferably 300,000 or less.
  • the weight average molecular weight said here means the weight average molecular weight of polystyrene conversion calculated
  • Examples of the hydrogenated product (1) include a hydrogenated product of a diblock copolymer of styrene and isoprene (SEP), a hydrogenated product of a diblock copolymer of styrene and butadiene (SEB), and styrene and butadiene / isoprene. And hydrogenated products (SEEP) of diblock copolymers. These may be used singly or in combination of two or more.
  • Examples of the hydrogenated product (2) include a hydrogenated product of a styrene, isoprene and styrene triblock copolymer (SEPS), a hydrogenated product of a styrene, butadiene and styrene triblock copolymer (SEBS), and styrene. And a hydrogenated product (SEEPS) of a triblock copolymer of butadiene / isoprene and styrene. These may be used singly or in combination of two or more.
  • SEPS isoprene and styrene triblock copolymer
  • SEBS hydrogenated product of a styrene, butadiene and styrene triblock copolymer
  • SEEPS hydrogenated product of a triblock copolymer of butadiene / isoprene and styrene.
  • the component (B) can be an inorganic compound or an organic compound, and is preferably an organic compound in terms of excellent solubility in the component (C). Furthermore, from the viewpoint of solubility in the component (C), the component (B) is preferably a compound containing no inorganic salt or organic salt.
  • the component (B) include ultraviolet absorbers (for example, tinuvin 326 (molecular weight 316), tinuvin 329 (molecular weight 323)), light stabilizers (for example, ADK STAB LA-77 (MW 481), ADK STAB LA-52 (Molecular weight 847)), antioxidants (for example, BHT (molecular weight 220), ADK STAB AO-330 (molecular weight 775), ADK STAB AO-60 (molecular weight 1178), Irganox 1076 (molecular weight 531), etc., metal deactivators (For example, at least one selected from the group consisting of benzotriazole (molecular weight 119)).
  • one type may be used alone, or two or more types may be used in combination.
  • the content of the component (B) in the pressure-sensitive adhesive composition according to this embodiment is 0.01 with respect to 100 parts by mass of the component (A) in that the transparency of the pressure-sensitive adhesive composition according to this embodiment can be ensured. It is preferably no less than 5 parts by mass and no greater than 5 parts by mass, preferably no less than 0.2 parts by mass and no greater than 3 parts by mass, and more preferably no less than 0.25 parts by mass and no greater than 2.5 parts by mass.
  • the molecular weight of the component (B) is preferably 1,800 or less, more preferably 1,500 or less, and usually 100 or more.
  • the molecular weight of (B) component means a weight average molecular weight (Mw).
  • the component (B) When the molecular weight of the component (B) exceeds 2,000, the component (B) is likely to precipitate in the pressure-sensitive adhesive layer formed from the pressure-sensitive adhesive composition. As a result, the adhesive strength of the pressure-sensitive adhesive layer may be reduced. Moreover, transparency of this adhesive layer may fall by precipitation of (B) component. Furthermore, even if the pressure-sensitive adhesive layer is transparent at room temperature, when the pressure-sensitive adhesive layer is exposed under high temperature and high humidity conditions, it tends to precipitate due to the size of the molecular weight, and is inferior in moisture and heat whitening resistance. There is.
  • the component (B) is solid at room temperature in that it can be supported on the hydrogenated block copolymer composition (A) pellets and blocking can be suppressed.
  • the average particle size of the component (B) is preferably 50 ⁇ m or less, usually 0.01 ⁇ m or more, more preferably 30 ⁇ m or less, and further preferably 20 ⁇ m or less.
  • fine powder particles can be classified, or pellet and granule particles can be pulverized and used as a desired particle size.
  • grains can be measured with an electron microscope, for example, can be measured by the method as described in this-application Example mentioned later.
  • Component (C) The solvent which is an aliphatic hydrocarbon and / or an aromatic hydrocarbon which is liquid at 23 ° C. as the component (C) has a property of dissolving the component (A) and the component (B). Have.
  • Examples of the aliphatic hydrocarbon that can be used as the component (C) include linear chains such as n-pentane, methylpentane, n-hexane, isohexane, n-heptane, n-heptane, isoheptane, n-octane, and isooctane.
  • linear chains such as n-pentane, methylpentane, n-hexane, isohexane, n-heptane, n-heptane, isoheptane, n-octane, and isooctane.
  • branched aliphatic hydrocarbons, cyclic aliphatic hydrocarbons such as cyclopentane, cyclohexane, and methylcyclohexane are exemplified.
  • examples of the aromatic hydrocarbon that can be used as the component (C) include toluene, benzene, o-xylene, m-xylene, p-xylene, ethylbenzene, mesitylene, chlorobenzene, and nitrobenzene.
  • the component (C) one or two of aliphatic hydrocarbons and aromatic hydrocarbons can be used in combination.
  • the content of the component (C) in the pressure-sensitive adhesive composition according to this embodiment is 100 parts by mass or more and 1,000 parts by mass or less with respect to 100 parts by mass of the component (A). It is more preferable that it is 200 parts by mass or more and 600 parts by mass or less.
  • the first compatibilizer (hereinafter sometimes simply referred to as “component (D)”) is the block copolymer (a1) or block copolymer constituting component (A). It has a property compatible with the polymer block A contained in the polymer (a2), has a softening point of 80 ° C. or higher, and is dissolved in the component (C).
  • the (D) component is dissolved in the (C) component means that the (D) component is not visually confirmed in the pressure-sensitive adhesive composition according to this embodiment. It means that no cloudiness is observed. Specifically, it means that no clogging occurs when filtering with a filter paper having an opening of 1 ⁇ m, and there is no residue on the filter paper.
  • compatible or “compatibilizing” means that turbidity or phase separation is not visually confirmed in a mixture obtained by mixing two different components. .
  • whether or not the component (D) is compatible with the polymer block A depends on the component corresponding to the polymer block A, that is, hydrogenation of a polymer synthesized only from an aromatic vinyl monomer. Evaluation will be made using the product and the component (D).
  • the occurrence of turbidity in a mixture obtained by mixing the hydrogenated polymer of the polymer polymerized only from the aromatic vinyl monomer and the component (D) using a solvent as necessary Alternatively, when phase separation between the phase containing the hydrogenated product of the polymer and the phase containing the component (D) is not visually observed, the component (D) is compatible with the polymer block A. On the other hand, when the above-mentioned turbidity or phase separation is visually observed, the component (D) is not compatible with the polymer block A.
  • the pressure-sensitive adhesive composition according to the present embodiment contains the component (D), the component (D) is compatible with the polymer block A, and therefore, the pressure-sensitive adhesive layer formed from the pressure-sensitive adhesive composition has a certain amount. It is possible to improve the adhesion to the adherend and to improve the heat resistance of the pressure-sensitive adhesive layer.
  • the component (D) can be, for example, an aromatic tackifier resin.
  • the aromatic tackifying resin used as the component (D) preferably has a molecular weight of 5,000 or less from the viewpoint of compatibility.
  • aromatic tackifying resins that can be used as the component (D) include aromatic petroleum resins, styrene polymers, ⁇ -methylstyrene polymers, styrene- ( ⁇ -methylstyrene) copolymers, Examples thereof include styrene-aliphatic hydrocarbon copolymers, styrene- ( ⁇ -methylstyrene) -aliphatic hydrocarbon copolymers, styrene-aromatic hydrocarbon copolymers, and the like.
  • FMR-0150 as a commercially available styrene-aromatic hydrocarbon copolymer (softening point 145 ° C., manufactured by Mitsui Chemicals), FTR-as a styrene-aliphatic hydrocarbon copolymer 6100 (softening point 100 ° C., Mitsui Chemicals), FTR-6110 (softening point 110 ° C., Mitsui Chemicals) and FTR-6125 (softening point 125 ° C., Mitsui Chemicals), styrene ( ⁇ -methylstyrene) ) -FTR-7100 as an aliphatic hydrocarbon copolymer (softening point 100 ° C., manufactured by Mitsui Chemicals), FTR-8120 as a styrene polymer (softening point 120 ° C., manufactured by Mitsui Chemicals) and SX- 100 (softening point 100 ° C., manufactured by Yasuhara
  • adhesion with the adherend can be increased, and durability can be increased, the softening point of the component (D) is 80.
  • the temperature can be higher than 95 ° C, and preferably higher than 95 ° C.
  • the content of the component (D) in the pressure-sensitive adhesive composition according to this embodiment is 5 parts by mass or more and 80 parts by mass with respect to 100 parts by mass of the component (A).
  • the amount is preferably not more than part by mass, more preferably not less than 10 parts by mass and not more than 50 parts by mass.
  • component (E) Second compatibilizer
  • component (E) is used as the block copolymer (a1) or the block copolymer constituting component (A). It has a property compatible with the polymer block B contained in the polymer (a2), is liquid at room temperature (23 ° C.), and is dissolved in the component (C).
  • liquid includes viscous viscoelastic liquid and other low viscosity liquid.
  • the (E) component is dissolved in the (C) component means that the (E) component is not visually confirmed in the pressure-sensitive adhesive composition, and dullness and cloudiness are also present in the pressure-sensitive adhesive. It means that it is not found in the composition, and further, it means that no clogging occurs when it is filtered through a filter paper having an opening of 1 ⁇ m and there is no residue on the filter paper.
  • compatible or “compatibilizing” means that turbidity or phase separation is not visually confirmed in a mixture obtained by mixing two different components. .
  • component (E) is compatible with the polymer block B is a component corresponding to the polymer block B, that is, a hydrogenated polymer synthesized from only a conjugated diene monomer. And (E) component.
  • the component (E) is compatible with the polymer block B, so that the wet-ability of the pressure-sensitive adhesive layer is increased. As a result, durability can be enhanced.
  • the component (E) can be a softener containing an aliphatic hydrocarbon such as a polybutene compound, a polyisobutylene compound, or a polyisoprene compound.
  • the softener usable as the component (E) examples include commercially available softeners such as Nisseki Polybutene LV-7, LV-50, LV-100, HV-15, HV-35, HV-50 as polybutene compounds. HV-100, HV-300, HV-1900, and SV-7000 (all manufactured by JX Nippon Oil & Energy Corporation), Tetrax 3T, 4T, 5T and 6T as polyisobutylene compounds, Highmol 4H, 5H, 5. 5H and 6H (both manufactured by JX Nippon Oil & Energy Corporation) and Claprene LIR-290 (manufactured by Kuraray Co., Ltd.) can also be used as the polyisoprene compound. As the component (E), one type may be used alone, or two or more types may be used in combination.
  • the content of the component (E) in the pressure-sensitive adhesive composition according to this embodiment is 10 parts by mass or more and 150 parts by mass with respect to 100 parts by mass of the component (A). More preferably, it is at most 15 parts by mass, and more preferably at least 15 parts by mass and at most 130 parts by mass.
  • the total content of the component (D) and the component (E) is preferably 20 parts by mass or more and 200 parts by mass or less, and 25 parts by mass or more and 150 parts by mass or less with respect to 100 parts by mass of the component (A). More preferably.
  • the pressure-sensitive adhesive composition according to this embodiment includes a component (D) and a component (E).
  • the component (D) is compatible with the polymer block A contained in the block copolymer (a1) or the block copolymer (a2) constituting the component (A).
  • the cohesive force of the pressure-sensitive adhesive is obtained when the component (E) is compatible with the polymer block B contained in the block copolymer (a1) or the block copolymer (a2) constituting the component (A). Durability can be increased by increasing.
  • the heat resistance is improved by the component having a high softening point due to the compatibility with the polymer block A constituting the component (A) due to the component (D), and the component (E).
  • the durability of the pressure-sensitive adhesive layer can be increased by two interactions with improvement in wettability to the adherend. Thereby, the adhesive layer excellent in durability, adhesiveness, and a weather resistance can be obtained.
  • the use of the pressure-sensitive adhesive composition according to the present embodiment is not particularly limited as long as it is a use requiring transparency, adhesion, level difference followability or moisture heat whitening resistance. It can be suitably used for optical applications.
  • the pressure-sensitive adhesive composition according to this embodiment can be used for bonding members constituting an image display device or an input / output device.
  • the member to be bonded using the pressure-sensitive adhesive composition according to the present embodiment is, for example, an optical member (for example, a polarizing film, a retardation film, an elliptically polarizing film, an antireflection film, a brightness enhancement film, a light diffusion film). And an optical film selected from the group consisting of hard coat films), a metal layer such as an ITO layer, or a substrate made of glass or plastic.
  • an optical member for example, a polarizing film, a retardation film, an elliptically polarizing film, an antireflection film, a brightness enhancement film, a light diffusion film.
  • an optical film selected from the group consisting of hard coat films a metal layer such as an ITO layer, or a substrate made of glass or plastic.
  • the pressure-sensitive adhesive composition according to this embodiment can be suitably used for bonding members constituting the touch panel type input / output device.
  • FIG. 1 is a cross-sectional view schematically showing a configuration of an input / output device (touch panel type input / output device 100) according to an embodiment of the present invention.
  • the touch panel type input / output device 100 includes a liquid crystal display device (LCD) 10, a touch panel unit 20, and an adhesive layer 30 provided between the LCD 10 and the touch panel unit 20.
  • the adhesive layer 30 bonds the LCD 10 and the touch panel unit 20 together.
  • the adhesive layer 30 is formed by, for example, applying the pressure-sensitive adhesive composition according to the present embodiment to the surface of a separator (not shown) and peeling the adhesive sheet obtained by drying from the separator, and the LCD 10 and the touch panel 20. It was installed between.
  • the LCD 10 is configured by laminating a polarizing plate 11, an adhesive layer 12, a liquid crystal panel 13, an adhesive layer 14, and a polarizing plate 15 in this order.
  • the pressure-sensitive adhesive layer 12 bonds the polarizing plate 11 and the liquid crystal panel 13, and the pressure-sensitive adhesive layer 14 bonds the liquid crystal panel 13 and the polarizing plate 15.
  • the touch panel unit 20 is configured by a scattering prevention film 16, an adhesive layer 17, an ITO layer 18, and a glass panel 19 laminated in this order.
  • the pressure-sensitive adhesive layer 17 bonds the scattering prevention film 16 and the ITO layer 18.
  • the adhesive layers 12, 14, and 17 are adhesive sheets obtained by applying the adhesive composition according to the present embodiment to the surface of a separator (not shown) and drying volatile components, like the adhesive layer 30. Is peeled off from the separator and installed.
  • the pressure-sensitive adhesive composition according to this embodiment comprises (A) component 100 parts by mass, (B) component 0.01 part by mass to 5 parts by mass, and (C) component, and (A The component (B) and the component (B) are both excellent in transparency because they are dissolved in the component (C).
  • the molecular weight of the compound (B) is as low as 2,000 or less, It is possible to obtain a pressure-sensitive adhesive layer that is excellent in dispersibility of the compound (B) and in which the compound (B) is hardly precipitated. Thereby, the pressure-sensitive adhesive layer has high transparency and is excellent in moisture and heat whitening resistance.
  • the pressure-sensitive adhesive layer can be suitably used for applications requiring transparency, and can impart adhesion and durability with an additive. Floating and peeling due to the generated gas (water vapor or a volatile component derived from the adherend) can be suppressed. Accordingly, for example, an image display device having high quality and excellent durability can be obtained using the pressure-sensitive adhesive layer.
  • hydrogenated block copolymers generally have strong self-adhesive properties (self-blocking properties), so the surface of the particles is usually coated with an anti-blocking agent such as talc or organic polymer particles. By covering, measures are taken to prevent self-adhesion (blocking) of the particles.
  • the pressure-sensitive adhesive layer formed using a hydrogenated block copolymer to which talc or general organic polymer particles are attached has a tendency to deposit organic polymer components, or talc or the like to be a hydrogenated block copolymer. Due to the incompatibility with the body, transparency, adhesiveness and wet heat whitening resistance may be inferior.
  • insoluble components such as talc
  • the filter is likely to be clogged, and not only smooth filtration is possible, but even after passing through a filtration step, a trace amount of insoluble component is present in the system after filtration. Therefore, it is difficult to obtain a pressure-sensitive adhesive layer having high transparency.
  • the pressure-sensitive adhesive layer is formed. Since it is not necessary to remove (B) component, the effort at the time of producing an adhesive layer can be reduced. Moreover, when the molecular weight of (B) component is 2000 or less, it is excellent in the solubility of this (B) component in the obtained adhesive layer, and this (B) component cannot precipitate easily. Thereby, the adhesive layer excellent in transparency, adhesiveness, and heat-and-moisture whitening resistance can be formed using the adhesive composition which concerns on this embodiment.
  • the adhesive composition which concerns on this embodiment contains the (D) component and (E) component excellent in compatibility with (A) component, and has the adhesiveness and the level
  • the manufacturing method of the adhesive composition of the invention which concerns on one Embodiment of this invention is (A) component, (B) component, (C) component, and (D) component as needed.
  • the step of dissolving the pellet in the component (C) includes the step of dissolving the component (A) and the component (B) in the component (C).
  • the obtained pressure-sensitive adhesive composition can be obtained.
  • the adhesive layer excellent in transparency and moisture-and-heat whitening resistance can be obtained using this adhesive composition.
  • the hydrogenated block copolymer composition pellet which (B) component exists in the inside and the surface of the pellet which consists of (A) component, (A) component and (B) component (internal use) are mentioned, for example
  • the composition is kneaded to produce pellets, and then component (B) (for surface) may be externally added to the pellet surface.
  • component (B) present inside and on the surface of the pellet may be the same or different.
  • the adhesive composition of this invention contains (D) component and / or (E) component
  • the adhesive composition of this invention contains (D) component and / or (E) component
  • it is added simultaneously with the said pellet and becomes (C) component.
  • the component (D) and / or the component (E) may be added to the composition solution and dissolved in the component (C).
  • Pressure-sensitive adhesive layer (pressure-sensitive adhesive sheet) and method for producing the same
  • the pressure-sensitive adhesive layer according to this embodiment can be obtained by removing the component (C) from the pressure-sensitive adhesive composition according to the above-described embodiment. That is, the method for producing a pressure-sensitive adhesive layer (pressure-sensitive adhesive sheet) according to one embodiment of the present invention includes a step of applying a pressure-sensitive adhesive composition according to the above-described embodiment onto a substrate to obtain a film, and drying the film. And removing the component (C) to obtain a pressure-sensitive adhesive layer.
  • the component (A) and the component (B) are dissolved in the component (C), and the component (B) Since the molecular weight of 2,000 or less is excellent in solubility of the component (B) in the obtained pressure-sensitive adhesive layer and the component (B) hardly precipitates in the pressure-sensitive adhesive layer, transparency, adhesive strength In addition, a pressure-sensitive adhesive layer excellent in moisture and heat whitening resistance can be obtained.
  • the pressure-sensitive adhesive layer according to the present embodiment is prepared by applying the pressure-sensitive adhesive composition according to the present embodiment to the surface of the release substrate (separator) and holding the separator at a temperature at which the component (C) evaporates. (Adhesive sheet) can be obtained.
  • the pressure-sensitive adhesive composition according to the present embodiment is applied onto a release substrate with a gravure coater, a Mayer bar coater, an air knife coater, a roll coater, and the like.
  • the pressure-sensitive adhesive layer according to this embodiment can be produced by holding at 15 ° C. or higher and 40 ° C. or lower) or by appropriately heating (for example, 40 ° C. or higher and 200 ° C. or lower).
  • the pressure-sensitive adhesive layer according to the present embodiment is more excellent in transparency, and the total light transmittance can be 80% or more in the JIS K7361 method, and preferably 90% or more.
  • the pressure-sensitive adhesive layer according to the present embodiment can have a storage elastic modulus of 1 ⁇ 10 4 Pa or more and 2 ⁇ 10 6 Pa or less at 25 ° C. and 1 Hz because it is more excellent in durability. It is preferable that it is 10 4 Pa or more and 1 ⁇ 10 6 Pa or less.
  • the thickness of the pressure-sensitive adhesive layer according to this embodiment is usually in the range of 10 ⁇ m to 500 ⁇ m, preferably 20 ⁇ m to 300 ⁇ m.
  • the obtained hydrogenated product (2) -1 As a result of analyzing the obtained hydrogenated product (2) -1, it was a hydrogenated product of a styrene-isoprene-styrene triblock copolymer, the styrene content was 11% by mass, and the weight average molecular weight was 215,300. The hydrogenation rate was 99.3%.
  • the hydrogenated block copolymer composition pellets containing the component (A) and the component (B) and other components were dissolved in the component (C), and Examples 1 to 9 and Comparative Examples 1 to 4 were dissolved.
  • Each pressure-sensitive adhesive composition was prepared.
  • the total light transmittance was 90% or more. From this, it can be understood that (A) component, (B) component, (D) component and (E) component are dissolved in (C) component in the adhesive compositions of Examples 1 to 9. .
  • the polyethylene terephthalate film on one side of the obtained pressure-sensitive adhesive sheet was peeled off and bonded to glass to prepare a test piece. After the test piece was autoclaved (50 ° C., 5 atm, 20 minutes), the other polyethylene terephthalate film was removed, and the haze and total light transmittance of the adhesive layer were measured using a haze meter (model name “HM-150”, Murakami Color). The measurement was performed using a technical laboratory.
  • the polyethylene terephthalate film on one side of the obtained pressure-sensitive adhesive sheet was peeled off and bonded to glass to prepare a test piece.
  • the test piece was autoclaved (50 ° C., 5 atm, 20 minutes), placed in a 85 ° C., 85% dryer for 24 hours, taken out in an environment at 23 ° C., 50%, left for 1 hour, and then the other polyethylene.
  • the terephthalate film was removed, and the haze and total light transmittance of the pressure-sensitive adhesive layer were measured using a haze meter (model name “HM-150”, manufactured by Murakami Color Research Laboratory Co., Ltd.).
  • Adhesive strength (adhesion) (initial)
  • the pressure-sensitive adhesive composition solutions obtained in Examples and Comparative Examples were coated on a peeled polyethylene terephthalate film so that the thickness after drying was 50 ⁇ m, and the solvent was removed with a dryer at 80 ° C. Subsequently, the polyethylene terephthalate film which peel-processed on the adhesive coating surface was bonded together, and the adhesive sheet was obtained.
  • the polyethylene terephthalate film on one side of the obtained pressure-sensitive adhesive sheet was peeled off, a polyethylene terephthalate film having a thickness of 100 ⁇ m was bonded, and cut into a width of 25 mm to prepare a test piece.
  • the polyethylene terephthalate film from which the test piece was peeled was peeled off, and the exposed adhesive-coated surface was pressure-bonded to glass using a 2 kg roller. Twenty minutes after pasting, the adhesive sheet was peeled from the glass plate (23 ° C., peeling angle 180 °, peeling speed 300 mm / min), and the initial adhesive strength was measured.
  • the polyethylene terephthalate film on one side of the obtained pressure-sensitive adhesive sheet was peeled off, a polyethylene terephthalate film having a thickness of 100 ⁇ m was bonded, and cut into a width of 25 mm to prepare a test piece.
  • the polyethylene terephthalate film from which the test piece was peeled was peeled off, and the exposed adhesive-coated surface was pressure-bonded to glass using a 2 kg roller. After putting it in an environment of 85 ° C and 85% for 24 hours and leaving it in an environment of 23 ° C and 50% for 1 hour, the adhesive sheet is peeled off from the glass plate (23 ° C, peeling angle 180 °, peeling speed 300 mm / min) The adhesive strength was measured after wet heat.
  • the evaluation test body was obtained by transferring the 50 ⁇ m thick adhesive sheet obtained by the production method described in 4.3.1 above to a 100 ⁇ m thick polyethylene terephthalate film.
  • a glass plate having an arbitrary step on the surface was prepared to prepare an adherend for the test.
  • step difference provided on the glass plate in this test was formed by sticking the polyethylene terephthalate adhesive tape which has predetermined
  • the thickness of the polyethylene terephthalate pressure-sensitive adhesive tape attached to the surface of the glass plate is two types of 25% and 15% with respect to the pressure-sensitive adhesive layer thickness. That is, two types of steps are provided on the surface of the glass plate.
  • a 50 ⁇ m thick adhesive sheet transferred to a 100 ⁇ m thick polyethylene terephthalate film is attached to the surface of a glass plate having an arbitrary step on the surface, which is an adherend for this test, and the test It was a piece. Thereafter, the test piece was autoclaved at 50 ° C. and 5 atm for 20 minutes, and then the filling of the step was visually observed (“after autoclaving” in Tables 1 and 2). Further, the test piece was allowed to stand for 24 hours under the condition of 80 ° C. dry, and then the level difference was visually observed (“After 80 hours of 80 ° C. dry” in Tables 1 and 2).
  • the step following property of the pressure-sensitive adhesive layer obtained by the pressure-sensitive adhesive composition was evaluated according to the following evaluation criteria.
  • a 25% step that is, a step of 12.5 ⁇ m
  • ⁇ A step of 12.5% with respect to the adhesive layer thickness of 50 ⁇ m (that is, a step of 7.5 ⁇ m) can be filled, and no voids or bubbles are visible around the step, but 25% of the adhesive layer thickness of 50 ⁇ m
  • the step (that is, a step of 12.5 ⁇ m) could not be filled, and voids and bubbles were visually recognized around the 25% step.
  • each component used by the Example and the comparative example is as follows.
  • Talc Inorganic particles, average particle size 5 ⁇ m (manufactured by NOF Corporation)
  • Calcium stearate organometallic salt particles, average particle size 1 ⁇ m, molecular weight 607 (manufactured by NOF
  • n-Hexane Sankyo Chemical Co., Ltd.
  • Component (D) FTR-6100 Aromatic tackifying resin with a softening point of 100 ° C. (Mitsui Chemicals) -(E) component HV100: Polybutene (manufactured by JX Nippon Oil & Energy Corporation) BI-3000: Hydrogenated polybutadiene (manufactured by Nippon Soda Co., Ltd.)
  • the pressure-sensitive adhesive compositions of Examples 1 to 9 of the present application include (A) component 100 parts by mass, (B) component 0.01 parts by mass to 5 parts by mass, and (C) component. And (A) component and (B) component are melt
  • compositions of Comparative Examples 1 to 3 of the present application unlike the component (B) of the present invention, contain an additive that does not dissolve in the component (C). It can be understood that it is inferior in heat and heat whitening resistance.
  • composition of Comparative Example 4 of the present application contains PE wax having a weight average molecular weight of 5,000 or more in place of the component (B), it can be understood that the composition is inferior in transparency and resistance to moist heat whitening.

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  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Adhesive Tapes (AREA)
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Cited By (1)

* Cited by examiner, † Cited by third party
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CN108300342B (zh) * 2016-09-08 2021-10-29 日东电工株式会社 粘合片

Families Citing this family (5)

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CN109072040B (zh) * 2016-08-09 2023-02-03 积水化学工业株式会社 粘接剂组合物、固化体、电子部件和组装部件
CN106950624A (zh) * 2017-04-24 2017-07-14 宁波东旭成新材料科技有限公司 一种量子点光扩散膜
WO2020004383A1 (ja) * 2018-06-26 2020-01-02 積水化学工業株式会社 光学用粘着シート
WO2020162439A1 (ja) * 2019-02-06 2020-08-13 バンドー化学株式会社 光学透明粘着シート、積層シート及び貼り合わせ構造物
CN115516002A (zh) * 2020-08-28 2022-12-23 积水化学工业株式会社 化合物、化合物的制造方法、粘合剂组合物和粘合带

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH021788A (ja) * 1988-02-22 1990-01-08 Kuraray Co Ltd 粘着剤組成物
JPH02153987A (ja) * 1988-12-05 1990-06-13 Kuraray Co Ltd 粘着剤組成物
JPH11302496A (ja) * 1998-04-21 1999-11-02 Kuraray Co Ltd 重合体組成物
JP3947105B2 (ja) * 2000-11-20 2007-07-18 株式会社クラレ 粘・接着剤およびそれに好適なブロック共重合体

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985499A (en) * 1988-02-22 1991-01-15 Kuraray Company Ltd. Pressure sensitive adhesive composition
JP3107251B2 (ja) 1992-04-17 2000-11-06 出光興産株式会社 スチレン系ブロック共重合体及びその製造方法
JPH07157737A (ja) * 1993-12-03 1995-06-20 Aica Kogyo Co Ltd 接着剤組成物
JP2000239635A (ja) * 1999-02-24 2000-09-05 Kuraray Co Ltd 接着剤
JP2001055552A (ja) * 1999-08-20 2001-02-27 Daicel Chem Ind Ltd ポリオレフィン用接着剤組成物
CN100371410C (zh) * 2000-11-20 2008-02-27 株式会社可乐丽 粘合-胶粘剂
CN101547989B (zh) * 2006-12-07 2011-07-06 3M创新有限公司 嵌段共聚物和丙烯酸类粘合剂的共混物
WO2008073669A1 (en) * 2006-12-07 2008-06-19 3M Innovative Properties Company Block copolymer blend adhesives with multiple tackifiers
JP2008274211A (ja) * 2007-03-30 2008-11-13 Jsr Corp 粘着剤組成物及び表面保護フィルム
DE102008060113A1 (de) * 2008-12-03 2010-07-29 Tesa Se Verfahren zur Kapselung einer elektronischen Anordnung
JP5852796B2 (ja) * 2011-05-27 2016-02-03 株式会社イーテック 粘着剤組成物およびこれを用いた塗膜層
US9493688B2 (en) * 2012-11-15 2016-11-15 Zeon Corporation Resin composition and molded article comprising same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH021788A (ja) * 1988-02-22 1990-01-08 Kuraray Co Ltd 粘着剤組成物
JPH02153987A (ja) * 1988-12-05 1990-06-13 Kuraray Co Ltd 粘着剤組成物
JPH11302496A (ja) * 1998-04-21 1999-11-02 Kuraray Co Ltd 重合体組成物
JP3947105B2 (ja) * 2000-11-20 2007-07-18 株式会社クラレ 粘・接着剤およびそれに好適なブロック共重合体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108300342B (zh) * 2016-09-08 2021-10-29 日东电工株式会社 粘合片

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