WO2008032762A1 - Composition adhésive et feuille adhésive - Google Patents

Composition adhésive et feuille adhésive Download PDF

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Publication number
WO2008032762A1
WO2008032762A1 PCT/JP2007/067790 JP2007067790W WO2008032762A1 WO 2008032762 A1 WO2008032762 A1 WO 2008032762A1 JP 2007067790 W JP2007067790 W JP 2007067790W WO 2008032762 A1 WO2008032762 A1 WO 2008032762A1
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Prior art keywords
meth
component
mass
sensitive adhesive
pressure
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PCT/JP2007/067790
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English (en)
Japanese (ja)
Inventor
Sadahiko Nishina
Sayaka Ebine
Kazuhiro Sakaguchi
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Soken Chemical & Engineering Co., Ltd.
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Priority to CN2007800341574A priority Critical patent/CN101553548B/zh
Publication of WO2008032762A1 publication Critical patent/WO2008032762A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers

Definitions

  • Adhesive composition and adhesive sheet are Adhesive composition and adhesive sheet
  • the present invention relates to a pressure-sensitive adhesive composition, and more specifically, is used for a pressure-sensitive adhesive layer in a surface protective sheet of an optical member such as a polarizing plate, and has excellent antistatic properties and a surface shape of an adherend.
  • the present invention relates to a pressure-sensitive adhesive composition capable of reducing a difference in adhesive strength depending on polarity and peeling speed.
  • an antistatic adhesive sheet in which a base material, release paper or the like is subjected to an antistatic treatment or an antistatic layer is laminated as an undercoat layer of an adhesive layer has been used. ing.
  • the pressure-sensitive adhesive sheet using the pressure-sensitive adhesive composition is applied to, for example, a low-polarity anti-glare (AG) polarizing plate having irregularities on the surface, and a high-polarity and smooth surface. Since the adhesive force differs depending on the surface shape and polarity when applied to the polarizing plate, it is necessary to use an adhesive sheet designed for the type of polarizing plate. It was. This means that a line that handles both electronic equipment using AG polarizing plates and electronic equipment using plain polarizing plates must use an adhesive sheet suitable for both. There was a problem in terms of work efficiency.
  • AG anti-glare
  • the pressure-sensitive adhesive sheet that has finished its role of protecting the surface is peeled off and discarded.
  • this peeling is performed at a high speed, the force required for peeling increases due to the pressure-sensitive adhesive force, resulting in a decrease in work efficiency.
  • the adhesive composition does not have an antistatic function, and furthermore, it has a force that cannot reduce the difference in adhesive force caused by the difference in surface shape and polarity of the adherend.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2004-263084
  • Patent Document 2 JP 2001-123136 A
  • the pressure-sensitive adhesive has excellent antistatic properties, can reduce the difference in adhesive force due to the difference in the surface state of the adherend, and also has a small difference in adhesive force between high-speed peeling and low-speed peeling.
  • Development of a composition is required, and the present invention has an object to provide such a pressure-sensitive adhesive composition.
  • the present inventor has found that a (meth) acrylic monomer having an alkylene oxide structure, two types of monomers having a specific functional group, and (meth) acrylic
  • the pressure-sensitive adhesive composition obtained by blending a liquid ionic salt composed of an organic cation and an inorganic anion and an isocyanate cross-linking agent into a (meth) acrylic polymer obtained by copolymerizing an acid alkyl ester has an excellent antistatic effect.
  • the present inventors have found that the difference in adhesive force due to the difference in surface shape and polarity of the adherend can be reduced regardless of the peeling speed, and that the difference in adhesive force due to the peeling speed can be reduced. It came to complete.
  • the present invention provides:
  • the present invention is a pressure-sensitive adhesive sheet obtained by crosslinking the above pressure-sensitive adhesive composition.
  • the pressure-sensitive adhesive composition of the present invention has an excellent antistatic effect and can reduce the difference in adhesive force caused by the shape and polarity of the surface of the adherend and the peeling speed, and therefore can be applied. It has excellent mechanical properties with a wide range of adherends and can improve work efficiency.
  • the pressure-sensitive adhesive composition of the present invention comprises (meth) acrylic polymer (component (A)) obtained by copolymerizing components (al) to (a4) described below as constituent components, an organic cation and an inorganic anion. Liquid ion salt (component (B)) and isocyanate cross-linking agent (component (C)).
  • the components constituting the (meth) acrylic polymer are (meth) acrylic monomers having an alkylene oxide structure (component (al)), hydroxyl group-containing monomers (component (a2)), carboxyl groups, These are monomers (component (a3)) and (meth) acrylic acid alkyl esters (component (a4)) containing amide groups or amino groups!
  • the component (al) constituting the component (A) has an alkylene oxide structure in the molecule, and examples of the alkylene oxide structure include an oxymethylene group, an oxyshethylene group, an oxypropylene group, and an oxybutylene group.
  • the number of moles of the alkylene oxide structure added to (meth) acrylic acid is not particularly limited; [0017] Specific examples of the (meth) acrylic monomer having an alkylene oxide structure are as follows.
  • Methoxy polyethylene glycol (meth) acrylate such as methoxydiethylene glycol (meth) acrylate, methoxy triethylene glycol (meth) acrylate; ethoxy such as ethoxyethylene glycol (meth) acrylate, ethoxy triethylene glycol (meth) acrylate Polyethylene glycol (meth) acrylate; Butoxy diethylene glycol (meth) acrylate, butoxypolyethylene glycol (meth) acrylate, such as butoxy triethylene glycol (meth) acrylate; Phenoxy diethylene glycol (meth) acrylate
  • phenoxypolyethylene glycol (meth) acrylate such as phenoxytriethylene glycol (meth) acrylate
  • methoxy polypropylene glycol (meth) acrylate such as methoxydipropylene glycol (meth) acrylate.
  • ethoxydiethylene glycol acrylate, methoxyethyl acrylate and the like are preferably used.
  • the (meth) acrylic monomer having an alkylene oxide structure as the component (al) may be used alone or in admixture of two or more. is a monomeric component 10 to 70 mass 0/0 (meth) acrylic polymer component (a), preferably 20 to 60 wt%. When the content is less than 10% by mass or greater than 70% by mass, the difference in the adhesive force due to the surface shape and polarity of the adherend becomes large, and the adherend is not contaminated during peeling. May occur.
  • the hydroxyl group-containing monomer of the component (a2) constituting the component (A) includes, for example, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 6-hydride Monomers of alkylene diols such as xyhexyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, polypropylene glycol mono (meth) acrylate, 1,6-hexanediol mono (meth) acrylate (Meth) atarylates; N-hydroxyethyl (meth)
  • 4-hydroxybutyl (meth) acrylate and 2-hydroxyethyl (meth) acrylate are preferably used.
  • the hydroxyl group-containing monomer of the above component (a2) may be used alone or in combination of two or more, but the total content is component (A). of (meth) the gesture et preferred that 1 to 8% by weight in a monomer component of the acrylic polymer, it is 3 to 6 mass 0/0 Is more preferable.
  • the monomer containing any functional group of carboxyl group, amide group or amino group of component (a3) constituting component (A) is, for example, (meth) as a carboxyl group-containing monomer.
  • amide group-containing monomers include attalinoleamide, N, N-dimethyl Examples include acrylamide, N- (1,1-dimethyl-3-oxobutyl) acrylamide, and tert-butylacrylamide sulfonic acid, and examples of the amino group-containing monomer include N, N-dimethylaminoethyl (meth) acrylate, N , N—Detylaminoethyl (meth) acrylate, N, N—Dimethylaminopropyl (meth) acrylate, N, N—Jet Such Aminopuropiru (meth) Atari rate can be exemplified.
  • the component (a3) also includes a monomer having two or more carboxyl groups, amide groups or amino groups, such as N- ( ⁇ ′, N′-dimethylenoreaminomethinole) atalinoleamide.
  • Monomers having a carboxyl group, amide group, or amino group! /, Or any functional group of component (a3) may be used alone or in combination of two or more.
  • the total content is preferably 0.05 to 0.5% by mass in the monomer component of the (meth) acrylic polymer of component (A). 3 mass% is more preferable. Within this range, the difference in the adhesive force due to the peeling speed can be reduced.
  • the monomer (a3) is less than 0.05% by mass, it is difficult to reduce the speed dependence of the peeling force.
  • the content is higher than mass%, a phenomenon (stopping) that alternately stops and instantaneously peels during high-speed peeling occurs.
  • the (a3) monomer also has the effect of finely adjusting the polarity of the (meth) acrylic polymer.
  • component (A) examples include methyl (meth) acrylate, ethyl (meth) acrylate, (meth ) Atalinoleate n-propyl, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, n-pentyl (meth) acrylate, isopentyl (meth) acrylate, (meth) Examples include n-hexyl acrylate, 2-ethylhexyl (meth) acrylate, and n-octyl (meth) acrylate. Of these, 2-methyhexyl (meth) acrylate is preferred. Used.
  • the (meth) acrylic acid alkyl ester of component (a4) may be used alone,
  • the (meth) acrylic polymer of component (A) used in the present invention is a monomer of the above components (al) to (a4) such as solution polymerization, emulsion polymerization, bulk polymerization, etc. (meth) acrylic polymer It can be obtained by copolymerization by a method usually used for polymer synthesis.
  • the molecular weight of the component (A) (meth) acrylic polymer is not particularly limited, but is preferably 200,000 to 700,000.
  • a polymerization initiator and a polymerization regulator can be used as necessary in producing the (meth) acrylic polymer of component (A) used in the present invention.
  • polymerization initiator examples include azo polymerization initiators such as azobisisoptyronitrile, peroxide polymerization initiators such as benzoyl peroxide, and the like. Using 100 parts by weight of the monomer mixture of (a4), use in the range of 0.01 to;! Parts by weight.
  • component (B) of the present invention is a liquid ion salt comprising a combination of an organic cation and an inorganic anion.
  • the liquid ion salt means a salt that is liquid at room temperature (25 ° C.).
  • Examples of the organic cation constituting the component (B) include imidazolium cation, pyridinium cation, piperidinium cation, pyrrolidinium cation, tetrahydropyrimidinium cation, dihydropyrimidium. Powers including cations, tetranolequinoleum ammonium cation, trialkylsulfoium cation, etc. Of these, imidazolium cation and pyridinium cation are preferably used, and pyridinium cation is particularly preferable.
  • imidazolium cation examples include, for example, 1,3-dimethylimidazolium mucachi, 1,3-jetylimidazolium cation, 1-ethyl-3-methylimidazolium cation, 1-butyl-3-methyl.
  • pyridinium cation examples include, for example, 1-ethylpyridinium cation, 1-butylpyridinium cation, 1-hexylpyridinium cation, 1-butyl-3- Methylpyridinium cation, 1-Butyl-4 Methylpyridinium cation, 1-Hexylur 3—Methylpyridinium cation, 1-Hexylru 4 Methylpyridinium cation, 1-Butyl-3,4-Dimethylpyridinium Among them, 1-hexyl 4-methylpyridinium cation and the like are preferably used.
  • examples of inorganic anions constituting the component (B) include Cl_, Br_, ⁇ , A1C 1 Al CI BF PF CIO NO AsF SbF NbF TaF F (
  • Component (B) of the present invention is a salt composed of a combination appropriately selected from the above organic cations and inorganic anions, specifically, 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-ethyl 3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylpyridinium tetrafluoroborate, 1-butyl-3-methylpyridinium hexafluorophosphate, 1-hexylol 3-methylimidazolium Tetrafluoroborate, 1-hexyluro 3-methylimidazole hexaphosphate, 1-octyl 3-methyl imidazole tetrafluoroborate, 1-octyl 3-methyl imidazole hexa Fluorophosphate, 1 monohexyl 3-methylimidazolium bromide, 1 monohexyl -3-methylimidazolium chloride, 1-hexyluro 2, 3 dimethyl
  • the amount of component (B) is usually in the range of 0.05 to 3 parts by weight, preferably 0.3 to 1.5 parts by weight, relative to 100 parts by weight of component (A). Part range.
  • the isocyanate cross-linking agent of component (C) of the present invention is a compound having an isocyanate group capable of cross-linking with a hydroxyl group in the molecule, and specifically, tolylene diisocyanate, chlorophenol dirange.
  • Isocyanate monomers such as isocyanate, hexamethylene diisocyanate, tetramethylene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, hydrogenated diphenylmethane diisocyanate, Examples thereof include isocyanate compounds or isocyanurate compounds obtained by subjecting these to addition reaction with bivalent or higher alcohol compounds such as trimethylolpropane.
  • urethane prepolymer type isocyanates obtained by adding an isocyanate compound to known polyether polyols, polyester polyols, acrylic polyols, polybutadiene polyols, polyisoprene polyols, and the like are also included. Of these, hexazimethylene isocyanate is preferably used.
  • the amount of component (C) to be added is usually 0.5 to 10 parts by weight, preferably 2 to 5 parts by weight, relative to 100 parts by weight of component (A). .
  • the pressure-sensitive adhesive composition of the present invention can be obtained by adding other additives to the components (A) to (C) as necessary and mixing them by a conventional method.
  • a solvent such as an organic solvent may be contained in order to dissolve or disperse the above components, but it is preferable to mix without using a solvent.
  • the antistatic pressure-sensitive adhesive composition of the present invention impairs the effects of the present invention in addition to the components described above. If necessary, add a tackifier, plasticizer, antioxidant, preservative, etc. as necessary.
  • the pressure-sensitive adhesive composition of the present invention obtained as described above can be applied to the surface of a support by a conventional method and dried to obtain the pressure-sensitive adhesive sheet of the present invention.
  • the coating thickness of the pressure-sensitive adhesive composition is usually 2 to 30 to 111. Yes, preferably 10 to 20 111.
  • the pressure-sensitive adhesive sheet of the present invention obtained as described above has a pressure-sensitive adhesive force when affixed to an adherend having a different surface shape and polarity, such as an AG polarizing plate or a plain polarizing plate, regardless of the peeling speed.
  • the difference between the adhesive force at low speed peeling and the adhesive force at high speed peeling is also small.
  • ethoxydiethylene glycol acrylate (ECA, manufactured by Kyoeisha) as component (al)
  • ECA ethoxydiethylene glycol acrylate
  • 4HBA 4-hydroxybutyl acrylate
  • acrylic acid as component (a3)
  • a component (a4) 2-ethyl hexyl acrylate (2E ⁇ ) 34 ⁇ 85 parts by weight, ethyl acetate 120 parts by weight and azobisisobutyronitrile ( ⁇ ⁇ ) 0.1 part by weight are put in a reaction vessel.
  • the air in the reaction vessel was replaced with nitrogen gas. Thereafter, while stirring in a nitrogen atmosphere, the reaction vessel was heated to 70 ° C. and reacted for 6 hours. After completion of the reaction, the reaction mixture was diluted with ethyl acetate to obtain an acrylic polymer solution A1 having a molecular weight of 500,000.
  • Atalyl polymer solutions A2 and A3 were obtained in the same manner as in Production Example 1 except that the components (al) to (a4) were changed as shown in Table 2 below.
  • the molecular weight is also shown in Table 1.
  • Atari is the same as Production Example 1 except that components (al) to (a4) are changed as shown in Table 2 below.
  • a polymer solution Bl to Bl 5 was obtained.
  • the molecular weight is also shown in Table 1.
  • ECA Ethoxydiethylene dalcol acrylate
  • a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet were obtained in the same manner as in Example 1 except that the acrylic polymer solution and the liquid ion salt were changed as shown in Table 2 below. Table 2 shows whether the cation and anion of the liquid ion salt are organic or inorganic, respectively.
  • a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet were obtained in the same manner as in Example 1 except that the acrylic polymer solution and the ionic liquid were changed as shown in Table 2 below.
  • the force that the cation and anion of the ionic salt are either organic or inorganic, and the state of the ionic salt at room temperature are also shown.
  • Example 2 A2 1-Fu "til-3-methylimita” ', Lium hexafluoro Organic Inorganic Liquid Phosph I-to
  • Example 3 A3 ⁇ hexyl-3-methylimita 'so'lium terrafluo ⁇ Organic Inorganic Liquid Formate
  • Comparative Example 9 B9 Lithium /, '-Chlorate Inorganic Inorganic Solid Comparative Example 10 B10 Lithium', — -Chlorine- ⁇ Inorganic Inorganic Solid Comparative Example 1 1 B1 1 Lithium-urolate Inorganic Inorganic Solid Comparative Example 12 B12 1- Hexyl-4- (Chirch'Rishi'Nyhexafluorolo Organic Inorganic Liquid
  • the peeled polyester film was peeled off and transferred to one side of the AG polarizing plate and the Plane polarizing plate, respectively. After leaving at 23 ° C and 65% for 1 day, measure the adhesive strength when peeling off the attached adhesive sheet in the 180 ° direction at a peeling speed of 300mm / min (low speed) and 30m / min (high speed). The low-speed peel force and the high-speed peel force were used respectively. [0055] ⁇ Antistatic property>
  • the pressure-sensitive adhesive sheets obtained in the above Examples and Comparative Examples were cut into 40 mm ⁇ 150 mm, and then pressure-bonded to the AG surface and plain surface of the laminate that had been neutralized with a 2 kg rubber roller. After leaving at 25 ° C and 65% for 1 day, the charge is removed again, and the surface potential of the polarizing plate when peeled at a peeling speed of 30m / min and peeling angle of 180 ° is measured using a potential meter (SK manufactured by KEYEN CE). ).
  • the pressure-sensitive adhesive tape produced using the pressure-sensitive adhesive composition of the present invention is excellent in antistatic property, and in both high-speed peeling and low-speed peeling, is an AG polarizing plate.
  • the adhesive strength was equivalent to that of a plain polarizing plate, and the difference between the adhesive strength at high speed peeling and the adhesive strength at low speed peeling was small.
  • Comparative Example 15 the difference in adhesive strength between the AG polarizing plate and the plain polarizing plate is large in both low-speed peeling and high-speed peeling, and the difference in adhesive strength in low-speed peeling and in high-speed peeling is also large. Larger than Examples 1 to 3. there were.
  • the pressure-sensitive adhesive sheet of the present invention exhibits the same adhesive strength with either an AG polarizing plate or a plain polarizing plate is not clear, but is considered as follows.
  • the AG polarizing plate has low polarity and unevenness on the surface, whereas the plain polarizing plate is high polarity and smooth.
  • the content of functional group-containing monomers such as (meth) acrylic monomers having an alkylene oxide structure and other hydroxyl group-containing monomers is high, and the (meth) acrylic polymer of component (A) becomes more polar and (meth) The higher the polarity of the acrylic polymer, the lower the adhesion to the low-polarity AG polarizing plate and the higher the adhesion to the high-polarity plain polarizing plate.
  • the adhesive since the gap between the irregularities on the surface of the AG polarizing plate is small, the adhesive usually does not adhere to the entire surface and does not contact the concave portions. Therefore, if the affinity of the (meth) acrylic polymer to the AG polarizing plate and that of the plain polarizing plate are the same, the adhesive strength to the (meth) acrylic polymer is smaller for the plain polarizing plate because of the smaller contact area. It is larger than the polarizing plate.
  • the liquid ionic salt of component (B) is Adhesive strength increases because it is slightly localized on the surface of the adhesive without bleed and fills the concave and convex surfaces of the AG polarizing plate.
  • the compatibility of the liquid ion salt and the (meth) acrylic polymer is related to the combination of the cation and anion of the liquid ion salt and the content of the monomer having an alkylene oxide structure in the (meth) acrylic polymer.
  • the ionic bond strength of the liquid ion salt is the combined force of caton / ayuon, in the order of inorganic / inorganic, organic / inorganic, and organic / organic, so the (meth) acrylic polymer of component (A) that is highly polar Compatibility with organic / organic
  • the AG polarizing plate by reducing the polarity of the (meth) acrylic polymer, a liquid ion salt of a combination of an organic cation and an inorganic anion having a high filling effect is selected.
  • the force that increases the adhesive strength when the polarity of the (meth) acrylic polymer is increased.
  • the polarity of the (meth) acrylic polymer By adjusting both the filling effect and the hole filling effect, it is possible to obtain a pressure-sensitive adhesive composition that exhibits the same adhesive strength to polarizing plates having different surface states.
  • the pressure-sensitive adhesive composition of the present invention is excellent in an antistatic effect and has a small difference in adhesive force due to the difference in shape and polarity of the adherend surface at both low speed and high speed peeling. Since the difference in adhesive strength depending on the peeling speed is small, it has excellent mechanical properties and can improve work efficiency.
  • the pressure-sensitive adhesive sheet using the pressure-sensitive adhesive composition of the present invention is advantageously used as a pressure-sensitive adhesive sheet for protecting the surface of optical members such as polarizing plates.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne une composition adhésive qui a une excellente propriété antistatique, et présente une variation réduite de l'adhésivité à un objet en fonction de l'état de l'objet ou de la vitesse de pelage. La composition adhésive comporte les composants suivants (A) à (C) : (A) un polymère (méth)acrylique obtenu par copolymérisation des monomères suivants (a1) à (a4) (à la condition que la quantité totale des monomères (a1) à (a4) soit de 100 % en masse) : 10 à 70 % en masse d'un monomère (méth)acrylique ayant une structure d'oxyde d'alkylène, (a2) 1 à 8 % en masse d'un monomère ayant un groupe hydroxy, (a3) 0,05 à 0,5 % en masse d'unmonomère ayant un groupe fonctionnel choisi parmi un groupe carboxyle, un groupe amide ou un groupe amino, et (a4) 25 à 85 % en masse d'un ester alkylique de l'acide (méth) acrylique ; (B) un sel ionique liquide composé d'un cation organique et d'un anion inorganique ; et (C) un agent de réticulation isocyanate.
PCT/JP2007/067790 2006-09-14 2007-09-13 Composition adhésive et feuille adhésive WO2008032762A1 (fr)

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WO2010050527A1 (fr) * 2008-10-31 2010-05-06 日本合成化学工業株式会社 Adhésif pour élément optique, élément optique pourvu d'une couche d'adhésif et obtenu en utilisant l'adhésif pour élément optique, ainsi que composition adhésive pour élément optique à rayonnement d'énergie active et/ou thermodurcissable
JP2010180378A (ja) * 2009-02-09 2010-08-19 Soken Chem & Eng Co Ltd 帯電防止性粘着剤組成物および帯電防止フィルム
CN103429691A (zh) * 2011-03-23 2013-12-04 Lg化学株式会社 压敏粘合剂组合物
JP2015212394A (ja) * 2015-06-24 2015-11-26 藤森工業株式会社 粘着剤組成物及び表面保護フィルム
JP2017057402A (ja) * 2016-10-26 2017-03-23 藤森工業株式会社 粘着フィルム及び表面保護フィルム
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JP5683369B2 (ja) * 2011-04-22 2015-03-11 藤森工業株式会社 粘着剤組成物及び表面保護フィルム
JP5613108B2 (ja) * 2011-06-28 2014-10-22 リンテック株式会社 粘着性組成物、粘着剤および粘着シート
JP5695529B2 (ja) * 2011-08-29 2015-04-08 綜研化学株式会社 積層体および該積層体を有するタッチパネル
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