TW201739880A - Pressure-sensitive adhesive composition pressure-sensitive adhesive member optical member and electronic member - Google Patents

Pressure-sensitive adhesive composition pressure-sensitive adhesive member optical member and electronic member Download PDF

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TW201739880A
TW201739880A TW106102836A TW106102836A TW201739880A TW 201739880 A TW201739880 A TW 201739880A TW 106102836 A TW106102836 A TW 106102836A TW 106102836 A TW106102836 A TW 106102836A TW 201739880 A TW201739880 A TW 201739880A
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weight
adhesive composition
meth
group
adhesive
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TW106102836A
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TWI806823B (en
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Shogo Sasaki
Souya Jo
Koji Shitara
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Nitto Denko Corp
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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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/10—Homopolymers or copolymers of methacrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • 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
    • 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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1515—Three-membered rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/29—Compounds containing one or more carbon-to-nitrogen double 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
    • 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

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

Abstract

Provided are an adhesive composition which forms an adhesive layer with excellent stress dispersibility, an adhesive member including an adhesive layer formed of the relevant adhesive composition, and an optical member or an electronic member including the relevant adhesive member. The adhesive composition of the present invention is an adhesive composition comprising a polymer (A) including a (meth)acrylic acid alkyl ester-derived monomer unit (I) having an alkyl group with 1 to 20 carbon atoms as alkyl ester moiety and a (meth)acrylic acid ester-derived monomer unit (II) having an OH group and/or a COOH group within molecules, wherein ([NCO]+[epoxy])/([OH]+[COOH]) < 0.05 when a mole containing ratio of a NCO group in the relevant adhesive composition is [NCO], a mole containing ratio of an epoxy group in the relevant adhesive composition is [epoxy], a mole containing ratio of an OH group in the relevant adhesive composition is [OH], and a mole containing ratio of a COOH group in the relevant adhesive composition is [COOH].

Description

黏著劑組合物、黏著構件、光學構件及電子構件Adhesive composition, adhesive member, optical member, and electronic member

本發明係關於一種黏著劑組合物、具有由該黏著劑組合物形成之黏著劑層之黏著構件、具備該黏著構件之光學構件或電子構件。The present invention relates to an adhesive composition, an adhesive member having an adhesive layer formed of the adhesive composition, an optical member or an electronic member provided with the adhesive member.

為了對使用LCD之觸控面板、相機之透鏡部、電子設備等光學構件或電子構件賦予剛性或耐衝擊性，存在於露出面側貼附有黏著性膜之情況(例如專利文獻1)。此種黏著性膜通常具有基材層與黏著劑層。 對於此種光學構件或電子構件，於組裝時、加工時、輸送時、使用時等各種情形時，存在因壓入力而施加負荷之情況，產生因施加之負荷導致光學構件或電子構件發生破損之問題。 [先前技術文獻] [專利文獻] 專利文獻1：日本專利特開2014-234460號公報In order to impart rigidity or impact resistance to an optical member or an electronic member such as a touch panel using an LCD, a lens portion of a camera, or an electronic device, an adhesive film is attached to the exposed surface side (for example, Patent Document 1). Such an adhesive film usually has a substrate layer and an adhesive layer. When such an optical member or an electronic member is subjected to various conditions such as assembly, processing, transportation, and use, there is a case where a load is applied due to a pressing force, and an optical member or an electronic member is broken due to an applied load. problem. [Prior Art Document] [Patent Document] Patent Document 1: Japanese Patent Laid-Open Publication No. 2014-234460

[發明所欲解決之問題] 著眼於採用具有優異之應力分散性之應力分散膜作為黏著性膜，對設置於此種應力分散膜之黏著劑層之形成材料進行了研究。 本發明之課題在於提供一種形成應力分散性優異之黏著劑層之黏著劑組合物、具有由該黏著劑組合物形成之黏著劑層之黏著構件、具備該黏著構件之光學構件或電子構件。 [解決問題之技術手段] 本發明之黏著劑組合物包含具有單體單元(I)與單體單元(II)之聚合物(A)，該單體單元(I)源自具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯，該單體單元(II)源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯；並且 將該黏著劑組合物中之NCO基之莫耳含有比率設為[NCO]、將該黏著劑組合物中之環氧基之莫耳含有比率設為[環氧基]、將該黏著劑組合物中之OH基之莫耳含有比率設為[OH]、將該黏著劑組合物中之COOH基之莫耳含有比率設為[COOH]時，([NCO]＋[環氧基])/([OH]＋[COOH])＜0.05。 於一實施形態中，本發明之黏著劑組合物包含2官能以上之有機多異氰酸酯系交聯劑及/或環氧系交聯劑。 於一實施形態中，本發明之黏著劑組合物包含具有源自通式(1)所表示之含脂環式結構之(甲基)丙烯酸酯之單體單元、並且重量平均分子量為1000以上、未達30000的聚合物(B)。 CH2 =C(R1 )COOR2 …(1) (通式(1)中，R1 為氫原子或甲基，R2 為具有脂環式結構之烴基) 於一實施形態中，由上述黏著劑組合物形成之黏著劑層於-40℃～150℃之整個溫度區域中之損耗正切tanδ為0.10以上。 本發明之黏著構件具有由上述黏著劑組合物形成之黏著劑層。 本發明之光學構件具備上述黏著構件。 本發明之電子構件具備上述黏著構件。 [發明之效果] 根據本發明，能夠提供一種形成應力分散性優異之黏著劑層之黏著劑組合物、具有由該黏著劑組合物形成之黏著劑層之黏著構件、具備該黏著構件之光學構件或電子構件。[Problems to be Solved by the Invention] A stress-dissipating film having excellent stress dispersibility is used as an adhesive film, and a material for forming an adhesive layer provided in such a stress-dispersed film has been studied. An object of the present invention is to provide an adhesive composition for forming an adhesive layer excellent in stress dispersibility, an adhesive member having an adhesive layer formed of the adhesive composition, and an optical member or an electronic member including the adhesive member. [Technical means for solving the problem] The adhesive composition of the present invention comprises a polymer (A) having a monomer unit (I) and a monomer unit (II) derived from a carbon number of 1 to An alkyl group of 20 as an alkyl (meth) acrylate having an alkyl ester moiety derived from a (meth) acrylate having an OH group and/or a COOH group in the molecule; The molar ratio of the NCO group in the agent composition is set to [NCO], and the molar ratio of the epoxy group in the adhesive composition is [epoxy group], which is in the adhesive composition. When the molar ratio of the OH group is set to [OH], and the molar content ratio of the COOH group in the adhesive composition is [COOH], ([NCO]+[epoxy])/([OH ]+[COOH])<0.05. In one embodiment, the adhesive composition of the present invention contains a bifunctional or higher organic polyisocyanate crosslinking agent and/or an epoxy crosslinking agent. In one embodiment, the adhesive composition of the present invention comprises a monomer unit derived from a (meth) acrylate having an alicyclic structure represented by the formula (1), and has a weight average molecular weight of 1,000 or more. Less than 30,000 polymer (B). CH 2 =C(R 1 )COOR 2 (1) (In the formula (1), R 1 is a hydrogen atom or a methyl group, and R 2 is a hydrocarbon group having an alicyclic structure). In one embodiment, The adhesive layer formed of the adhesive composition has a loss tangent tan δ of 0.10 or more over the entire temperature range of -40 ° C to 150 ° C. The adhesive member of the present invention has an adhesive layer formed of the above adhesive composition. The optical member of the present invention includes the above-described adhesive member. The electronic component of the present invention includes the above-described adhesive member. [Effect of the Invention] According to the present invention, an adhesive composition for forming an adhesive layer excellent in stress dispersibility, an adhesive member having an adhesive layer formed of the adhesive composition, and an optical member having the adhesive member can be provided. Or electronic components.

於本說明書中有「(甲基)丙烯酸」之表述之情形時，意指「丙烯酸及/或甲基丙烯酸」，有「(甲基)丙烯酸酯」之表述之情形時，意指「丙烯酸酯及/或甲基丙烯酸酯」。又，於本說明書中有「重量」之表述之情形時，亦可替換成作為表示重量之SI系單位而慣用之「質量」。 於本說明書中有「源自(a)之單體單元(A)」之表述之情形時，單體單元(A)為單體(a)具有之不飽和雙鍵因聚合發生斷鍵而形成之結構單元。再者，所謂不飽和雙鍵因聚合發生斷鍵而形成之結構單元係「RpRqC=CRrRs」之結構(Rp、Rq、Rr、Rs為以單鍵與碳原子鍵結之任意適當之基)之不飽和雙鍵「C=C」因聚合發生斷鍵而形成之「-RpRqC-CRrRs-」之結構單元。 於本說明書中，聚合物中之單體單元之含有比率例如可根據該聚合物之各種結構解析(例如NMR等)而獲知。又，即使不進行如上所述之各種結構解析，亦可將基於製造聚合物時使用之各種單體之使用量而算出之源自該各種單體之單體單元之含有比率作為聚合物中之單體單元之含有比率。即，可將製造聚合物時使用之全部單體成分中之某種單體(m)之含有比率作為該聚合物中之源自單體(m)之單體單元之含有比率進行處理。 ≪≪A.黏著劑組合物≫≫ 本發明之黏著劑組合物包含具有單體單元(I)與單體單元(II)之聚合物(A)，該單體單元(I)源自具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯，該單體單元(II)源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯。 本發明之黏著劑組合物中之上述聚合物(A)之含有比率較佳為80重量%～100重量%，更佳為85重量%～100重量%，進而較佳為90重量%～100重量%，尤佳為92.5重量%～100重量%，最佳為95重量%～100重量%。藉由使本發明之黏著劑組合物中之上述聚合物(A)之含有比率處於上述範圍內，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 聚合物(A)具有源自具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯的單體單元(I)。聚合物(A)中之源自具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯之單體單元(I)可僅為1種，亦可為2種以上。 聚合物(A)中之源自具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯之單體單元(I)之含有比率較佳為90重量%～99.5重量%，更佳為91重量%～99重量%，進而較佳為92重量%～98.5重量%，尤佳為93重量%～98.2重量%，最佳為94重量%～98重量%。藉由使聚合物(A)中之源自具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯之單體單元(I)之含有比率處於上述範圍內，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 作為具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯，例如可列舉：(甲基)丙烯酸甲酯、(甲基)丙烯酸乙酯、(甲基)丙烯酸正丁酯、(甲基)丙烯酸第二丁酯、(甲基)丙烯酸第三丁酯、(甲基)丙烯酸異丁酯、(甲基)丙烯酸己酯、(甲基)丙烯酸2-乙基己酯、(甲基)丙烯酸正辛酯、(甲基)丙烯酸異辛酯、(甲基)丙烯酸正壬酯、(甲基)丙烯酸異壬酯、(甲基)丙烯酸正癸酯、(甲基)丙烯酸異癸酯、(甲基)丙烯酸正十二烷基酯、(甲基)丙烯酸正十三烷基酯、(甲基)丙烯酸正十四烷基酯等。 聚合物(A)具有源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯的單體單元(II)。聚合物(A)中之源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯之單體單元(II)可僅為1種，亦可為2種以上。藉由使聚合物(A)具有源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯之單體單元(II)，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 聚合物(A)中之源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯之單體單元(II)之含有比率較佳為0.5重量%～10重量%，更佳為1重量%～9重量%，進而較佳為1.5重量%～8重量%，尤佳為1.8重量%～7重量%，最佳為2重量%～6重量%。藉由使聚合物(A)中之源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯之單體單元(II)之含有比率處於上述範圍內，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 作為分子內具有OH基之(甲基)丙烯酸酯，例如可列舉：(甲基)丙烯酸2-羥基乙酯、(甲基)丙烯酸2-羥基丙酯、(甲基)丙烯酸4-羥基丁酯、(甲基)丙烯酸6-羥基己酯、(甲基)丙烯酸8-羥基辛酯、(甲基)丙烯酸10-羥基癸酯、(甲基)丙烯酸12-羥基月桂酯、甲基丙烯酸(4-羥基甲基環己基)酯、N-羥甲基(甲基)丙烯醯胺、乙烯醇、烯丙基醇、2-羥基乙基乙烯基醚、4-羥基丁基乙烯基醚、二乙二醇單乙烯基醚等。 作為分子內具有COOH基之(甲基)丙烯酸酯，例如可列舉：(甲基)丙烯酸、(甲基)丙烯酸羧基乙酯、(甲基)丙烯酸羧基戊酯、伊康酸、馬來酸、富馬酸、丁烯酸、異丁烯酸等。 聚合物(A)亦可具有源自其他單體之單體單元(III)。聚合物(A)中之源自其他單體之單體單元(III)可僅為1種，亦可為2種以上。 作為其他單體，例如可列舉：含氰基單體、乙烯基酯單體、芳香族乙烯基單體、含醯胺基單體、含醯亞胺基單體、含胺基單體、含環氧基單體、乙烯基醚單體、N-丙烯醯基嗎啉、含磺基單體、含磷酸基單體、含酸酐基單體等。 關於本發明之黏著劑組合物，將該黏著劑組合物中之NCO基之莫耳含有比率設為[NCO]、將該黏著劑組合物中之環氧基之莫耳含有比率設為[環氧基]、將該黏著劑組合物中之OH基之莫耳含有比率設為[OH]、將該黏著劑組合物中之COOH基之莫耳含有比率設為[COOH]時，([NCO]＋[環氧基])/([OH]＋[COOH])＜0.05。藉由使([NCO]＋[環氧基])/([OH]＋[COOH])處於上述範圍，能夠提供形成應力分散性優異之黏著劑層之黏著劑組合物。再者，於本發明之黏著劑組合物中不存在NCO基之情形時，[NCO]＝0，於本發明之黏著劑組合物中不存在環氧基之情形時，[環氧基]＝0。即([NCO]＋[環氧基])/([OH]＋[COOH])之下限值為0。 本發明之黏著劑組合物較佳為包含2官能以上之有機多異氰酸酯系交聯劑及/或環氧系交聯劑。本發明之黏著劑組合物所可包含之2官能以上之有機多異氰酸酯系交聯劑及/或環氧系交聯劑可僅為1種，亦可為2種以上。 本發明之黏著劑組合物中之上述2官能以上之有機多異氰酸酯系交聯劑及環氧系交聯劑之合計含比率相對於聚合物(A)100重量份，較佳為0.001重量份～0.4重量份，更佳為0.0025重量份～0.3重量份，進而較佳為0.005重量份～0.2重量份，尤佳為0.0075重量份～0.15重量份，最佳為0.01重量份～0.1重量份。藉由使本發明之黏著劑組合物中之上述2官能以上之有機多異氰酸酯系交聯劑及環氧系交聯劑之合計含比率相對於聚合物(A)100重量份處於上述範圍內，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 作為2官能以上之有機多異氰酸酯系交聯劑，例如可列舉：伸丁基二異氰酸酯、六亞甲基二異氰酸酯等低級脂肪族多異氰酸酯類；伸環戊基二異氰酸酯、伸環己基二異氰酸酯、異佛爾酮二異氰酸酯等脂環族異氰酸酯類；2,4-甲苯二異氰酸酯、4,4'-二苯基甲烷二異氰酸酯、苯二甲基二異氰酸酯等芳香族異氰酸酯類；三羥甲基丙烷/甲苯二異氰酸酯三聚物加成物(例如，Nippon Polyurethane Industry Co.,Ltd.製造，商品名「CORONATE L」)、三羥甲基丙烷/六亞甲基二異氰酸酯三聚物加成物(例如，Nippon Polyurethane Industry Co.,Ltd.製造，商品名「CORONATE HL」)、六亞甲基二異氰酸酯之異氰尿酸酯體(例如，Nippon Polyurethane Industry Co.,Ltd.製造，商品名「CORONATE HX」)等異氰酸酯加成物等。 作為環氧系交聯劑，例如可列舉：雙酚A、表氯醇型環氧系樹脂、伸乙基縮水甘油醚、聚乙二醇二縮水甘油醚、甘油二縮水甘油醚、甘油三縮水甘油醚、1,6-己二醇縮水甘油醚、三羥甲基丙烷三縮水甘油醚、二縮水甘油基苯胺、二胺基縮水甘油基胺、N,N,N´,N´-四縮水甘油基間苯二甲胺(例如，三菱瓦斯化學製造，商品名「TETRAD-X」)、1,3-雙(N,N-二縮水甘油基胺基甲基)環己烷(例如，三菱瓦斯化學公司製造，商品名「TETRAD-C」)等。 本發明之黏著劑組合物亦可包含具有源自通式(1)所表示之含脂環式結構之(甲基)丙烯酸酯之單體單元、並且重量平均分子量為1000以上、未達30000的聚合物(B)。 CH2 =C(R1 )COOR2 …(1) (通式(1)中，R1 為氫原子或甲基，R2 為具有脂環式結構之烴基) 聚合物(B)可僅為1種，亦可為2種以上。 聚合物(B)之重量平均分子量較佳為1000～30000，更佳為1250～25000，進而較佳為1500～20000，尤佳為1750～15000，最佳為2000～10000。藉由使聚合物(B)之重量平均分子量處於上述範圍內，即使增加交聯劑之量，亦可提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 本發明之黏著劑組合物中之聚合物(B)之含有比率相對於聚合物(A)100重量份，較佳為0.5重量份～50重量份，更佳為1重量份～45重量份，進而較佳為2重量份～40重量份，尤佳為3重量份～35重量份，最佳為4重量份～30重量份。藉由使本發明之黏著劑組合物中之聚合物(B)之含有比率相對於聚合物(A)100重量份處於上述範圍內，即使增加交聯劑之量，亦可提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 聚合物(B)中之源自通式(1)所表示之含脂環式結構之(甲基)丙烯酸酯之單體單元之含有比率較佳為40重量%～99.5重量%，更佳為42.5重量%～99重量%，進而較佳為45重量%～98.5重量%，尤佳為47.5重量%～98重量%，最佳為50重量%～97.5重量%。藉由使聚合物(B)中之源自通式(1)所表示之含脂環式結構之(甲基)丙烯酸酯之單體單元之含有比率處於上述範圍內，即使增加交聯劑之量，亦可提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 作為上述通式(1)所表示之含脂環式結構之(甲基)丙烯酸酯，例如可列舉：(甲基)丙烯酸環己酯、(甲基)丙烯酸二環戊基酯、甲基丙烯酸二環戊氧基乙酯、丙烯酸二環戊氧基乙酯、甲基丙烯酸三環戊酯、丙烯酸三環戊酯、甲基丙烯酸1-金剛烷基酯、丙烯酸1-金剛烷基酯、甲基丙烯酸2-甲基-2-金剛烷基酯、丙烯酸2-甲基-2-金剛烷基酯、甲基丙烯酸2-乙基-2-金剛烷基酯、丙烯酸2-乙基-2-金剛烷基酯等。 聚合物(B)亦可具有源自其他單體之單體單元(IV)。聚合物(B)中之源自其他單體之單體單元(IV)可僅為1種，亦可為2種以上。 作為聚合物(B)所可包含之其他單體，例如可列舉：(甲基)丙烯酸甲酯、(甲基)丙烯酸乙酯、(甲基)丙烯酸正丁酯、(甲基)丙烯酸第二丁酯、(甲基)丙烯酸第三丁酯、(甲基)丙烯酸異丁酯、(甲基)丙烯酸己酯、(甲基)丙烯酸2-乙基己酯、(甲基)丙烯酸正辛酯、(甲基)丙烯酸異辛酯、(甲基)丙烯酸正壬酯、(甲基)丙烯酸異壬酯、(甲基)丙烯酸正癸酯、(甲基)丙烯酸異癸酯、(甲基)丙烯酸正十二烷基酯、(甲基)丙烯酸正十三烷基酯、(甲基)丙烯酸正十四烷基酯、丙烯酸、甲基丙烯酸、丙烯酸羧基乙酯、丙烯酸羧基戊酯、伊康酸、馬來酸、富馬酸、丁烯酸、異丁烯酸等。 聚合物(A)、聚合物(B)於無損本發明之效果之範圍內，可藉由任意適當之方法來製造。作為此種製造方法，例如可列舉：溶液聚合、乳化聚合、塊狀聚合、懸浮聚合、光聚合(活性能量線聚合)等。該等製造方法之中，就成本或生產性之觀點而言，較佳為溶液聚合。所得之聚合物(A)可為無規共聚物、嵌段共聚物、交替共聚物、接枝共聚物等均可。所得之聚合物(B)可為無規共聚物、嵌段共聚物、交替共聚物、接枝共聚物等均可。 作為溶液聚合之方法，例如可列舉將單體成分、聚合起始劑等溶解於溶劑，進行加熱、聚合，從而獲得聚合物溶液之方法等。 作為溶液聚合中進行加熱聚合時之加熱溫度，例如可列舉50℃~90℃。作為溶液聚合中之加熱時間，例如可列舉1小時~24小時。 作為溶液聚合中可使用之溶劑，於無損本發明之效果之範圍內可使用任意適當之溶劑。作為此種溶劑，例如可列舉：甲苯、苯、二甲苯等芳香族烴類；乙酸乙酯、乙酸正丁酯等酯類；正己烷、正庚烷等脂肪族烴類；環己烷、甲基環己烷等脂環式烴類；甲基乙基酮、甲基異丁基酮等酮類等有機溶劑等。溶劑可僅為1種，亦可為2種以上。 於聚合物(A)、聚合物(B)之製造中可使用聚合起始劑。此種聚合起始劑可僅為1種，亦可為2種以上。作為此種聚合起始劑，例如可列舉：2,2'-偶氮二異丁腈、2,2'-偶氮雙(2-脒基丙烷)二鹽酸鹽、2,2'-偶氮雙[2-(5-甲基-2-咪唑啉-2-基)丙烷]二鹽酸鹽、2,2'-偶氮雙(2-甲基丙脒)二硫酸鹽、2,2'-偶氮雙(N,N'-二亞甲基異丁基脒)、2,2'-偶氮雙[N-(2-羧基乙基)-2-甲基丙脒]水合物(和光純藥公司製造，VA-057)等偶氮系起始劑；過硫酸鉀、過硫酸銨等過硫酸鹽；二(2-乙基己基)過氧化碳酸酯、二(4-第三丁基環己基)過氧化碳酸酯、二第二丁基過氧化碳酸酯、過氧化新癸酸第三丁酯、過氧化特戊酸第三己酯、過氧化特戊酸第三丁酯、過氧化二月桂醯、過氧化二正辛醯、過氧化-2-乙基己酸1,1,3,3-四甲基丁酯、過氧化二(4-甲基苯甲醯)、過氧化二苯甲醯、過氧化異丁酸第三丁酯、1,1-二(第三己基過氧化)環己烷、第三丁基過氧化氫、過氧化氫等過氧化物系起始劑；過硫酸鹽與亞硫酸氫鈉之組合、過氧化物與抗壞血酸鈉之組合等將過氧化物與還原劑組合而成之氧化還原系起始劑等。 聚合起始劑之用量於無損本發明之效果之範圍內，可採用任意適當之用量。作為此種用量，例如相對於單體成分100重量份，較佳為0.01重量份~5重量份。 於聚合物(A)、聚合物(B)之製造中，可使用鏈轉移劑。此種鏈轉移劑可僅為1種，亦可為2種以上。作為此種鏈轉移劑，例如可列舉：月桂基硫醇、縮水甘油基硫醇、巰基乙酸、2-巰基乙醇、硫代乙醇酸、硫代乙醇酸甲酯、硫代乙醇酸2-乙基己酯、2,3-二巰基-1-丙醇等。 鏈轉移劑之用量於無損本發明之效果之範圍內，可採用任意適當之用量。作為此種用量，例如相對於單體成分100重量份，較佳為0.01重量份~5重量份。 於聚合物(A)、聚合物(B)之製造中，可使用通常能夠在聚合反應中使用之其他任意適當之添加劑。 本發明之黏著劑組合物亦可包含交聯觸媒。作為交聯觸媒，於無損本發明之效果之範圍內可採用任意適當之交聯觸媒。作為此種交聯觸媒，例如可列舉：鈦酸四正丁酯、鈦酸四異丙酯、乙醯丙酮鐵、丁基氧化錫、二辛基二月桂酸錫等金屬系交聯觸媒(特別是錫系交聯觸媒)等。交聯觸媒可僅為1種，亦可為2種以上。 交聯觸媒之用量於無損本發明之效果之範圍內，可採用任意適當之用量。作為此種用量，例如相對於單體成分100重量份，較佳為0.001重量份~0.05重量份。 本發明之黏著劑組合物於無損本發明之效果之範圍內亦可含有任意適當之其他添加劑。作為此種其他添加劑，例如可列舉：矽烷偶合劑、交聯延遲劑、乳化劑、著色劑、顏料等粉體、染料、界面活性劑、塑化劑、黏著性賦予劑、表面潤滑劑、流平劑、軟化劑、抗氧化劑、防老化劑、光穩定劑、紫外線吸收劑、聚合抑制劑、無機填充劑、有機填充劑、金屬粉、顆粒狀、箔狀物等。此種其他添加劑可僅為1種，亦可為2種以上。 關於本發明之黏著劑組合物，較佳為將該黏著劑組合物硬化而形成之黏著劑層於-40℃～150℃之整個溫度區域中之損耗正切tanδ為0.10以上。藉由使-40℃～150℃之整個溫度區域中之上述損耗正切tanδ為0.10以上，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。再者，上述損耗正切tanδ之測定方法於下文中進行敍述。 關於本發明之黏著劑組合物，將該黏著劑組合物硬化而形成之黏著劑層於-40℃～150℃之整個溫度區域中之損耗正切tanδ之上限較佳為2.40以下，更佳為2.20以下，進而較佳為2.00以下，尤佳為1.80以下。藉由使上述損耗正切tanδ之上限處於上述範圍內，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 關於本發明之黏著劑組合物，將該黏著劑組合物硬化而形成之黏著劑層於-40℃～150℃之整個溫度區域中之損耗正切tanδ之下限較佳為0.12以上，更佳為0.14以上，進而較佳為0.16以上，尤佳為0.18以上。藉由使上述損耗正切tanδ之下限處於上述範圍內，能夠提供形成應力分散性更優異之黏著劑層之黏著劑組合物。 ≪≪B.黏著構件≫≫ 本發明之黏著構件具有由本發明之黏著劑組合物形成之黏著劑層。 本發明之黏著構件可僅包含黏著劑層，亦可包含黏著劑層與其他構件。 於本發明之黏著構件中，於黏著劑層作為最外層露出之形態之情形時，可於該露出面側設置任意適當之隔離膜(剝離片)。隔離膜(剝離片)亦可兼作下述基材。 黏著劑層係由本發明之黏著劑組合物形成。例如，將本發明之黏著劑組合物塗佈於任意適當之基材上，視需要進行乾燥而於基材上形成黏著劑層。然後，若剝離基材，則可獲得僅包含黏著劑層之本發明之黏著構件。又，例如，將本發明之黏著劑組合物塗佈於任意適當之基材上，視需要進行乾燥而於基材上形成黏著劑層，將基材原樣保留，藉此獲得包含黏著劑層與基材之黏著構件。又，例如，將本發明之黏著劑組合物塗佈於任意適當之基材上，視需要進行乾燥而於基材上形成黏著劑層，將剝離基材而獲得黏著劑層載置於其他構件(例如其他基材)，藉此獲得包含黏著劑層與基材之黏著構件。又，例如，將本發明之黏著劑組合物塗佈於任意適當之基材上，視需要進行乾燥而於基材上形成黏著劑層，將在基材上形成黏著劑層轉印至其他構件(例如其他基材)，藉此獲得包含黏著劑層與基材之黏著構件。 作為黏著劑組合物之塗佈方法，例如可列舉：輥塗、凹版塗佈、反向塗佈、輥刷、噴塗、氣刀塗佈法、利用模嘴塗佈機等之擠出塗佈等。 基材可為由單層形成者，亦可包含多層。基材可被延伸。 基材之厚度可根據用途設定為任意適當之厚度。就用以充分表現本發明之效果之觀點而言，基材之厚度較佳為4 μm～500 μm，更佳為10 μm～400 μm，進而較佳為15 μm～350 μm，尤佳為20 μm～300 μm。 作為基材之材料，根據用途可採用任意適當之材料。作為此種材料，例如可列舉：塑膠、紙、金屬膜、不織布等。此種材料之中，就可進一步表現本發明之效果之方面而言，較佳為塑膠。 作為上述塑料，例如可列舉：聚酯系樹脂、聚烯烴系樹脂、聚醯胺系樹脂、聚醯亞胺系樹脂等。作為聚酯系樹脂，例如可列舉：聚對苯二甲酸乙二酯、聚對苯二甲酸丁二酯、聚萘二甲酸乙二酯等。作為聚烯烴系樹脂，例如可列舉：烯烴單體之均聚物、烯烴單體之共聚物等。作為聚烯烴系樹脂，具體而言，例如可列舉：均聚丙烯；將乙烯成分作為共聚成分之嵌段系、無規系、接枝系等之丙烯系共聚物；反應性TPO；低密度、高密度、線性低密度、超低密度等之乙烯系聚合物；乙烯-丙烯共聚物、乙烯-乙酸乙烯酯共聚物、乙烯-丙烯酸甲酯共聚物、乙烯-丙烯酸乙酯共聚物、乙烯-丙烯酸丁酯共聚物、乙烯-甲基丙烯酸共聚物、乙烯-甲基丙烯酸甲酯共聚物等乙烯系共聚物等。就可進一步表現本發明之效果之方面而言，作為上述塑膠，該等之中，較佳為聚酯系樹脂，更佳為聚對苯二甲酸乙二酯。 基材可視需要含有任意適當之添加劑。作為基材中所可含有之添加劑，例如可列舉：抗氧化劑、紫外線吸收劑、光穩定劑、抗靜電劑、填充劑、顏料等。基材中可含有之添加劑之種類、數目、量可根據目的適當地進行設定。 圖1係本發明之一實施形態之黏著構件之概略剖視圖。圖1中，本發明之黏著構件100包含基材10、黏著劑層20及隔離膜30。 ≪≪C.光學構件、電子構件≫≫ 本發明之黏著構件具有應力分散性優異之黏著劑層。因此，可適當地用作用於保護光學構件、電子構件免受來自外部之衝擊等之保護材料。即，本發明之光學構件具備本發明之黏著構件。又，本發明之電子構件具備本發明之黏著構件。 [實施例] 以下，藉由實施例具體地對本發明進行說明，但本發明不受該等實施例之任何限定。再者，實施例等中之試驗及評價方法如下所述。再者，記載為「份」之情形時，只要無特殊說明，則指「重量份」，記載為「%」之情形時，只要無特殊說明，則指「重量%」。 ＜重量平均分子量之測定＞ 聚合物之重量平均分子量(Mw)係使用TOSOH CORPORATION製造之GPC裝置(HLC-8220GPC)進行測定。再者，重量平均分子量(Mw)係利用聚苯乙烯換算值求出。 測定條件如下所述。 樣品濃度：0.2重量%(THF溶液) 樣品注入量：10 μl溶離液 THF流速：0.6 ml/分鐘 測定溫度：40℃ 樣品管柱：TSKguardcolumn SuperHZ-H(1根)＋TSKgel Super HZM-H(2根) 參考管柱：TSKgel SuperH-RC(1根) 檢測器：示差折射計(RI) ＜黏著片之製作＞ 利用槽輥，將所得之黏著劑組合物以乾燥後之厚度成為50 μm之方式塗佈於單面經矽酮進行了剝離處理之厚度38 μm之聚酯膜(商品名：MRF，Mitsubishi Chemical Polyester Film股份有限公司製造)之剝離處理面，於乾燥溫度130℃、乾燥時間3分鐘之條件下進行固化、乾燥。如此，於基材上製作黏著劑層。繼而，將單面經矽酮對進行了剝離處理之厚度38 μm之聚酯膜(商品名：MRF，Mitsubishi Chemical Polyester Film股份有限公司製造)以該膜之剝離處理面成為黏著劑層側之方式被覆於黏著劑層之表面。如此，製作黏著片。 ＜玻璃轉移溫度(Tg)、儲存模數、損耗彈性模數、tanδ(損耗正切)之測定＞ 使用動態黏彈性測定裝置(Rheometrics公司製造，ARES)，根據下述方法求出。 僅將黏著劑層自所得之黏著片取出，進行積層，形成約2 mm之厚度，將其衝壓為7.9 mm，製作圓柱狀之顆粒，設為測定用樣品。將上述測定樣品固定於7.9 mm平行板之夾具，利用上述動態黏彈性測定裝置，對儲存模數G'、損耗彈性模數G''之溫度依存性進行測定，以tanδ＝G''/G'之形式算出tanδ。再者，將所得之tanδ曲線成為極大時之溫度設為玻璃轉移溫度(Tg)(℃)。 測定條件如下所述。 測定：剪切模式 溫度範圍：-70℃~150℃ 升溫速度：5℃/分鐘 頻率：1 Hz [製造例1]：(甲基)丙烯酸系聚合物(1) 向具備攪拌翼、溫度計、氮氣導入管、冷凝器之四口燒瓶中添加丙烯酸2-乙基己酯(Nippon Shokubai Co., Ltd.製)：100重量份、丙烯酸2-羥基乙酯(東亞合成公司製造)：4重量份、作為聚合起始劑之2,2'-偶氮二異丁腈(和光純藥工業公司製造)：0.2重量份、乙酸乙酯：156重量份，一面緩慢地攪拌，一面導入氮氣，將燒瓶內之液溫保持為65℃附近，進行6小時聚合反應，製備重量平均分子量55萬之(甲基)丙烯酸系聚合物(1)之溶液(40重量%)。 [製造例2]：(甲基)丙烯酸系聚合物(2) 向具備攪拌翼、溫度計、氮氣導入管、冷凝器之四口燒瓶中添加丙烯酸2-乙基己酯(Nippon Shokubai Co., Ltd. 製)：100重量份、丙烯酸4-羥基丁酯(大阪有機化學工業公司製造)：10重量份、丙烯酸(東亞合成公司製造)：0.02重量份、作為聚合起始劑之2,2'-偶氮二異丁腈(和光純藥工業公司製造)：0.2重量份、乙酸乙酯：156重量份，一面緩慢地攪拌，一面導入氮氣，將燒瓶內之液溫保持為65℃附近，進行6小時聚合反應，製備重量平均分子量54萬之(甲基)丙烯酸系聚合物(2)之溶液(40重量%)。 [製造例3]：(甲基)丙烯酸系聚合物(3) 向具備攪拌翼、溫度計、氮氣導入管、冷凝器之四口燒瓶中添加丙烯酸丁酯(Nippon Shokubai Co., Ltd. 製)：99重量份、丙烯酸4-羥基丁酯(大阪有機化學工業公司製造)：1重量份、作為聚合起始劑之2,2'-偶氮二異丁腈(和光純藥工業公司製造)：1重量份、乙酸乙酯：156重量份，一面緩慢地攪拌，一面導入氮氣，將燒瓶內之液溫保持為60℃附近，進行7小時聚合反應，製備重量平均分子量160萬之(甲基)丙烯酸系聚合物(3)之溶液(39重量%)。 [製造例4]：(甲基)丙烯酸系聚合物(4) 向具備攪拌翼、溫度計、氮氣導入管、冷凝器之四口燒瓶中添加丙烯酸丁酯(Nippon Shokubai Co., Ltd.製)：92重量份、N-丙烯醯基嗎啉(Kohjin co.,Ltd.製)：5重量份、丙烯酸(東亞合成公司製造)：2.9重量份、作為聚合起始劑之2,2'-偶氮二異丁腈(和光純藥工業公司製造)：0.1重量份、乙酸乙酯：200重量份，一面緩慢地攪拌，一面導入氮氣，將燒瓶內之液溫保持為55℃附近，進行8小時聚合反應，製備重量平均分子量180萬之(甲基)丙烯酸系聚合物(4)之溶液(33重量%)。 [製造例5]：(甲基)丙烯酸系聚合物(5) 向具備攪拌翼、溫度計、氮氣導入管、冷凝器之四口燒瓶中添加丙烯酸丁酯(Nippon Shokubai Co., Ltd.製)：95重量份、丙烯酸(東亞合成公司製造)：5重量份、作為聚合起始劑之2,2'-偶氮二異丁腈(和光純藥工業公司製造)：0.2重量份、乙酸乙酯：156重量份，一面緩慢地攪拌，一面導入氮氣，將燒瓶內之液溫保持為63℃附近，進行10小時聚合反應，製備重量平均分子量70萬之(甲基)丙烯酸系聚合物(5)之溶液(40重量%)。 [製造例6]：含脂環式結構之(甲基)丙烯酸系聚合物(6) 將作為單體成分之甲基丙烯酸環己酯[均聚物(聚甲基丙烯酸環己酯)之玻璃轉移溫度：66℃]：95重量份、丙烯酸：5重量份、作為鏈轉移劑之2-巰基乙醇：3重量份、作為聚合起始劑之2,2'-偶氮二異丁腈：0.2重量份、及作為聚合溶劑之甲苯：103.2重量份投入至可分離式燒瓶中，一面導入氮氣，一面攪拌1小時。如此，將聚合體系內之氧氣去除後，升溫至70℃，使其反應3小時，進而，於75℃下反應2小時，獲得重量平均分子量4000之(甲基)丙烯酸系聚合物(6)之溶液(50重量%)。 [製造例6]：含脂環式結構之(甲基)丙烯酸系聚合物(7) 向具備攪拌翼、溫度計、氮氣導入管、冷凝器、滴液漏斗之四口燒瓶中投入甲苯：100重量份、甲基丙烯酸二環戊酯(DCPMA)(商品名：FA-513M、日立化成工業公司製造)：60重量份、甲基丙烯酸甲酯(MMA)：40重量份、及作為鏈轉移劑之硫代乙醇酸甲酯：3.5重量份。然後，於70℃、氮氣環境下攪拌1小時後，投入作為聚合起始劑之2,2'-偶氮二異丁腈：0.2重量份，於70℃下反應2小時，繼而於80℃下反應4小時後，於90℃下反應1小時，獲得重量平均分子量4000之(甲基)丙烯酸系聚合物(7)之溶液(51重量%)。 [實施例1] 對(甲基)丙烯酸系聚合物(1)之溶液，以相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(1)。將結果示於表1。 [實施例2] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.01重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(2)。將結果示於表1。 [實施例3] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.1重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(3)。將結果示於表1。 [實施例4] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.05重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)、以固形物成分換算計為5重量份之(甲基)丙烯酸系聚合物(6)之溶液，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(4)。將結果示於表1。 [實施例5] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.1重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)、以固形物成分換算計為5重量份之(甲基)丙烯酸系聚合物(6)之溶液，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(5)。將結果示於表1。 [實施例6] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.3重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)、以固形物成分換算計為5重量份之(甲基)丙烯酸系聚合物(6)之溶液，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(6)。將結果示於表1。 [實施例7] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.1重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)、以固形物成分換算計為5重量份之(甲基)丙烯酸系聚合物(7)之溶液，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(7)。將結果示於表1。 [實施例8] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.3重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)、以固形物成分換算計為5重量份之(甲基)丙烯酸系聚合物(7)之溶液，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(8)。將結果示於表1。 [實施例9] 對(甲基)丙烯酸系聚合物(2)之溶液，以相對於(甲基)丙烯酸系聚合物(2)之溶液之固形物成分100重量份，全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(9)。將結果示於表1。 [實施例10] 向(甲基)丙烯酸系聚合物(2)之溶液中加入：相對於(甲基)丙烯酸系聚合物(2)之溶液之固形物成分100重量份，以固形物成分換算計為0.1重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.05重量份之TETRAD-C(三菱瓦斯化學公司製造)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(10)。將結果示於表1。 [實施例11] 向(甲基)丙烯酸系聚合物(3)之溶液中加入：相對於(甲基)丙烯酸系聚合物(3)之溶液之固形物成分100重量份，以固形物成分換算計為0.02重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(11)。將結果示於表1。 [實施例12] 向(甲基)丙烯酸系聚合物(4)之溶液中加入：相對於(甲基)丙烯酸系聚合物(4)之溶液之固形物成分100重量份，以固形物成分換算計為0.3重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(12)。將結果示於表1。 [實施例13] 向(甲基)丙烯酸系聚合物(5)之溶液中加入：相對於(甲基)丙烯酸系聚合物(5)之溶液之固形物成分100重量份，以固形物成分換算計為0.075重量份之作為交聯劑之TETRAD-C(三菱瓦斯化學公司製造)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(13)。將結果示於表1。 [實施例14] 向(甲基)丙烯酸系聚合物(5)之溶液中加入：相對於(甲基)丙烯酸系聚合物(5)之溶液之固形物成分100重量份，以固形物成分換算計為0.075重量份之作為交聯劑之TETRAD-C(三菱瓦斯化學公司製造)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)、以固形物成分換算計為20重量份之(甲基)丙烯酸系聚合物(6)之溶液，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(14)。將結果示於表1。 [比較例1] 向(甲基)丙烯酸系聚合物(1)之溶液中加入：相對於(甲基)丙烯酸系聚合物(1)之溶液之固形物成分100重量份，以固形物成分換算計為0.5重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(C1)。將結果示於表1。 [比較例2] 向(甲基)丙烯酸系聚合物(2)之溶液中加入：相對於(甲基)丙烯酸系聚合物(2)之溶液之固形物成分100重量份，以固形物成分換算計為0.45重量份之作為交聯劑之CORONATE L(Nippon Polyurethane Industry Co.,Ltd.製)、以固形物成分換算計為0.3重量份之TETRAD-C(三菱瓦斯化學公司製造)、以固形物成分換算計為0.005重量份之作為交聯觸媒之乙醯丙酮鐵(日本化學產業公司製造)，並以全部固形物成分成為25重量%之方式利用乙酸乙酯進行稀釋，利用分散機攪拌，獲得包含丙烯酸系樹脂之黏著劑組合物(C2)。將結果示於表1。 [表1] [實施例15] 將聚酯膜自由實施例1中獲得之黏著劑組合物(1)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例16] 將聚酯膜自由實施例2中獲得之黏著劑組合物(2)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例17] 將聚酯膜自由實施例4中獲得之黏著劑組合物(4)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例18] 將聚酯膜自由實施例7中獲得之黏著劑組合物(7)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例19] 將聚酯膜自由實施例9中獲得之黏著劑組合物(9)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例20] 將聚酯膜自由實施例10中獲得之黏著劑組合物(10)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例21] 將聚酯膜自由實施例11中獲得之黏著劑組合物(11)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例22] 將聚酯膜自由實施例12中獲得之黏著劑組合物(12)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例23] 將聚酯膜自由實施例13中獲得之黏著劑組合物(13)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例24] 將聚酯膜自由實施例14中獲得之黏著劑組合物(14)形成之黏著片之一面剝離，貼附於作為光學構件之偏光板(日東電工股份有限公司製造，商品名「TEG1465DUHC」)，獲得貼附有黏著片之光學構件。 [實施例25] 將聚酯膜自由實施例1中獲得之黏著劑組合物(1)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例26] 將聚酯膜自由實施例2中獲得之黏著劑組合物(2)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例27] 將聚酯膜自由實施例4中獲得之黏著劑組合物(4)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例28] 將聚酯膜自由實施例7中獲得之黏著劑組合物(7)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例29] 將聚酯膜自由實施例9中獲得之黏著劑組合物(9)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例30] 將聚酯膜自由實施例10中獲得之黏著劑組合物(10)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例31] 將聚酯膜自由實施例11中獲得之黏著劑組合物(11)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例32] 將聚酯膜自由實施例12中獲得之黏著劑組合物(12)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例33] 將聚酯膜自由實施例13中獲得之黏著劑組合物(13)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [實施例34] 將聚酯膜自由實施例14中獲得之黏著劑組合物(14)形成之黏著片之一面剝離，貼附於作為電子構件之導電性膜(日東電工股份有限公司製造，商品名「ELECRYSTA V270L-TFMP」)，獲得貼附有黏著片之電子構件。 [產業上之可利用性] 具有由本發明之黏著劑組合物形成之黏著劑層之黏著構件例如可適當地用作用於保護光學構件或電子構件免受來自外部之衝擊等之保護材料。In the case of the expression "(meth)acrylic acid" in this specification, it means "acrylic acid and/or methacrylic acid". When the expression "(meth)acrylate" is used, it means "acrylate". And / or methacrylate. Further, in the case where the expression "weight" is used in the present specification, it may be replaced with "quality" which is conventionally used as the SI system unit indicating the weight. In the case where the expression "from the monomer unit (A) derived from (a)" is present in the specification, the monomer unit (A) is formed by the monomer (a) having an unsaturated double bond which is broken by polymerization. The structural unit. In addition, the structure of the structural unit system "RpRqC=CRrRs" formed by the breaking bond of the unsaturated double bond (Rp, Rq, Rr, and Rs is any suitable group bonded to a carbon atom by a single bond) The structural unit of "-RpRqC-CRrRs-" formed by the unsaturated double bond "C=C" due to the breaking of the polymerization. In the present specification, the content ratio of the monomer unit in the polymer can be known, for example, from various structural analyses (for example, NMR, etc.) of the polymer. Further, even if the various structural analyses described above are not performed, the content ratio of the monomer units derived from the various monomers calculated based on the amount of each monomer used in the production of the polymer can be used as the polymer. The content ratio of the monomer unit. That is, the content ratio of a certain monomer (m) among all the monomer components used in the production of the polymer can be treated as the content ratio of the monomer unit derived from the monomer (m) in the polymer. ≪≪A. Adhesive Composition ≫≫ The adhesive composition of the present invention comprises a polymer (A) having a monomer unit (I) and a monomer unit (II) derived from carbon The alkyl group having 1 to 20 alkyl groups is an alkyl (meth)acrylate having an alkyl ester moiety derived from a (meth) acrylate having an OH group and/or a COOH group in the molecule. The content ratio of the above polymer (A) in the adhesive composition of the present invention is preferably from 80% by weight to 100% by weight, more preferably from 85% by weight to 100% by weight, still more preferably from 90% by weight to 100% by weight. % is particularly preferably from 92.5% by weight to 100% by weight, most preferably from 95% by weight to 100% by weight. By setting the content ratio of the polymer (A) in the adhesive composition of the present invention within the above range, it is possible to provide an adhesive composition which forms an adhesive layer which is more excellent in stress dispersion property. The polymer (A) has a monomer unit (I) derived from an alkyl (meth)acrylate having an alkyl group having 1 to 20 carbon atoms as an alkyl ester moiety. The monomer unit (I) derived from the alkyl (meth)acrylate having an alkyl group having 1 to 20 carbon atoms as the alkyl ester moiety in the polymer (A) may be one type or two types. the above. The content ratio of the monomer unit (I) derived from the alkyl (meth)acrylate having an alkyl group having 1 to 20 carbon atoms as the alkyl ester moiety in the polymer (A) is preferably 90% by weight to 99.5. The weight % is more preferably 91% by weight to 99% by weight, still more preferably 92% by weight to 98.5% by weight, still more preferably 93% by weight to 98.2% by weight, most preferably 94% by weight to 98% by weight. By containing the content ratio of the monomer unit (I) derived from the alkyl (meth)acrylate having an alkyl group having 1 to 20 carbon atoms as the alkyl ester moiety in the polymer (A) within the above range, It is possible to provide an adhesive composition which forms an adhesive layer which is more excellent in stress dispersion. Examples of the alkyl (meth)acrylate having an alkyl group having 1 to 20 carbon atoms as an alkyl ester moiety include methyl (meth)acrylate, ethyl (meth)acrylate, and (meth)acrylic acid. N-butyl acrylate, second butyl (meth) acrylate, tert-butyl (meth) acrylate, isobutyl (meth) acrylate, hexyl (meth) acrylate, 2-ethyl (meth) acrylate Hexyl ester, n-octyl (meth)acrylate, isooctyl (meth)acrylate, n-decyl (meth)acrylate, isodecyl (meth)acrylate, n-decyl (meth)acrylate, (a) Isodecyl acrylate, n-dodecyl (meth)acrylate, n-tridecyl (meth)acrylate, n-tetradecyl (meth)acrylate, and the like. The polymer (A) has a monomer unit (II) derived from a (meth) acrylate having an OH group and/or a COOH group in the molecule. The monomer unit (II) derived from the (meth) acrylate having an OH group and/or a COOH group in the molecule in the polymer (A) may be used alone or in combination of two or more. By allowing the polymer (A) to have a monomer unit (II) derived from a (meth) acrylate having an OH group and/or a COOH group in the molecule, it is possible to provide adhesion of an adhesive layer which is more excellent in stress dispersion. Composition. The content ratio of the monomer unit (II) derived from the (meth) acrylate having an OH group and/or a COOH group in the polymer in the polymer (A) is preferably from 0.5% by weight to 10% by weight, more preferably 1% by weight to 9% by weight, more preferably 1.5% by weight to 8% by weight, still more preferably 1.8% by weight to 7% by weight, most preferably 2% by weight to 6% by weight. By setting the content ratio of the monomer unit (II) derived from the (meth) acrylate having an OH group and/or a COOH group in the polymer in the polymer (A) within the above range, it is possible to provide stress dispersion. A more excellent adhesive composition for the adhesive layer. Examples of the (meth) acrylate having an OH group in the molecule include 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, and 4-hydroxybutyl (meth)acrylate. , 6-hydroxyhexyl (meth)acrylate, 8-hydroxyoctyl (meth)acrylate, 10-hydroxydecyl (meth)acrylate, 12-hydroxylauryl (meth)acrylate, methacrylic acid (4) -hydroxymethylcyclohexyl)ester, N-methylol (meth) acrylamide, vinyl alcohol, allyl alcohol, 2-hydroxyethyl vinyl ether, 4-hydroxybutyl vinyl ether, diethyl Glycol monovinyl ether and the like. Examples of the (meth) acrylate having a COOH group in the molecule include (meth)acrylic acid, carboxyethyl (meth)acrylate, carboxypentyl (meth)acrylate, itaconic acid, and maleic acid. Fumaric acid, crotonic acid, methacrylic acid, and the like. The polymer (A) may also have a monomer unit (III) derived from another monomer. The monomer unit (III) derived from the other monomer in the polymer (A) may be used alone or in combination of two or more. Examples of the other monomer include a cyano group-containing monomer, a vinyl ester monomer, an aromatic vinyl monomer, a guanamine-containing monomer, a ruthenium-containing monomer, an amine group-containing monomer, and the like. An epoxy group monomer, a vinyl ether monomer, N-propylene decylmorpholine, a sulfo group-containing monomer, a phosphate group-containing monomer, an acid anhydride group-containing monomer, and the like. In the adhesive composition of the present invention, the molar ratio of the NCO group in the adhesive composition is set to [NCO], and the molar ratio of the epoxy group in the adhesive composition is set to [ring Oxy], when the molar ratio of the OH group in the adhesive composition is [OH], and the molar content ratio of the COOH group in the adhesive composition is [COOH], ([NCO ]+[epoxy])/([OH]+[COOH])<0.05. By setting ([NCO]+[epoxy])/([OH]+[COOH]) in the above range, it is possible to provide an adhesive composition which forms an adhesive layer excellent in stress dispersibility. Further, in the case where the NCO group is not present in the adhesive composition of the present invention, [NCO] = 0, when the epoxy group is not present in the adhesive composition of the present invention, [epoxy group] = 0. That is, the lower limit of ([NCO]+[epoxy])/([OH]+[COOH]) is 0. The adhesive composition of the present invention preferably contains a bifunctional or higher organic polyisocyanate crosslinking agent and/or an epoxy crosslinking agent. The two or more functional organic polyisocyanate crosslinking agents and/or epoxy crosslinking agents which may be contained in the adhesive composition of the present invention may be used alone or in combination of two or more. The total content of the above-mentioned bifunctional or higher organic polyisocyanate crosslinking agent and epoxy crosslinking agent in the adhesive composition of the present invention is preferably 0.001 part by weight based on 100 parts by weight of the polymer (A). 0.4 parts by weight, more preferably 0.0025 parts by weight to 0.3 parts by weight, still more preferably 0.005 parts by weight to 0.2 parts by weight, still more preferably 0.0075 parts by weight to 0.15 parts by weight, most preferably 0.01 parts by weight to 0.1 parts by weight. The total content ratio of the above-mentioned bifunctional or higher organic polyisocyanate crosslinking agent and epoxy crosslinking agent in the adhesive composition of the present invention is in the above range with respect to 100 parts by weight of the polymer (A). It is possible to provide an adhesive composition which forms an adhesive layer which is more excellent in stress dispersion. Examples of the bifunctional or higher organic polyisocyanate crosslinking agent include lower aliphatic polyisocyanates such as butyl diisocyanate and hexamethylene diisocyanate; cyclopentyl diisocyanate and cyclohexyl diisocyanate; An alicyclic isocyanate such as isophorone diisocyanate; an aromatic isocyanate such as 2,4-toluene diisocyanate, 4,4'-diphenylmethane diisocyanate or benzodimethyl diisocyanate; trimethylolpropane /Toluene diisocyanate trimer adduct (for example, manufactured by Nippon Polyurethane Industry Co., Ltd., trade name "CORONATE L"), trimethylolpropane / hexamethylene diisocyanate trimer adduct ( For example, Nippon Polyurethane Industry Co., Ltd., trade name "CORONATE HL"), hexamethylene diisocyanate isocyanurate body (for example, manufactured by Nippon Polyurethane Industry Co., Ltd., trade name "CORONATE"HX") isocyanate adduct or the like. Examples of the epoxy-based crosslinking agent include bisphenol A, epichlorohydrin epoxy resin, ethyl diglycidyl ether, polyethylene glycol diglycidyl ether, glycerol diglycidyl ether, and glycerin tricondensate. Glycerol ether, 1,6-hexanediol glycidyl ether, trimethylolpropane triglycidyl ether, diglycidylaniline, diaminoglycidylamine, N, N, N ́, N ́-tetrahydration Glyceryl meta-xylylenediamine (for example, manufactured by Mitsubishi Gas Chemical Co., Ltd., trade name "TETRAD-X"), 1,3-bis(N,N-diglycidylaminomethyl)cyclohexane (for example, Mitsubishi Manufactured by Gas Chemical Company, trade name "TETRAD-C"). The adhesive composition of the present invention may further comprise a monomer unit having a (meth) acrylate derived from the alicyclic structure represented by the formula (1), and having a weight average molecular weight of 1,000 or more and less than 30,000. Polymer (B). CH 2 =C(R 1 )COOR 2 (1) (In the 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 may be used in two or more types. The weight average molecular weight of the polymer (B) is preferably from 1,000 to 30,000, more preferably from 1,250 to 25,000, still more preferably from 1,500 to 20,000, still more preferably from 1,750 to 15,000, most preferably from 2,000 to 10,000. By setting the weight average molecular weight of the polymer (B) within the above range, an adhesive composition for forming an adhesive layer having more excellent stress dispersibility can be provided even if the amount of the crosslinking agent is increased. The content ratio of the polymer (B) in the adhesive composition of the present invention is preferably from 0.5 part by weight to 50 parts by weight, more preferably from 1 part by weight to 45 parts by weight, per 100 parts by weight of the polymer (A). Further, it is preferably 2 parts by weight to 40 parts by weight, particularly preferably 3 parts by weight to 35 parts by weight, most preferably 4 parts by weight to 30 parts by weight. By setting the content ratio of the polymer (B) in the adhesive composition of the present invention to the above range with respect to 100 parts by weight of the polymer (A), it is possible to provide stress dispersibility even if the amount of the crosslinking agent is increased. A more excellent adhesive composition for the adhesive layer. The content ratio of the monomer unit derived from the (meth) acrylate having an alicyclic structure represented by the formula (1) in the polymer (B) is preferably from 40% by weight to 99.5% by weight, more preferably 42.5% by weight to 99% by weight, more preferably 45% by weight to 98.5% by weight, still more preferably 47.5% by weight to 98% by weight, most preferably 50% by weight to 97.5% by weight. By making the content ratio of the monomer unit derived from the (meth) acrylate having an alicyclic structure represented by the formula (1) in the polymer (B) within the above range, even if the crosslinking agent is added It is also possible to provide an adhesive composition which forms an adhesive layer which is more excellent in stress dispersion. Examples of the (meth) acrylate having an alicyclic structure represented by the above formula (1) include cyclohexyl (meth)acrylate, dicyclopentyl (meth)acrylate, and methacrylic acid. Dicyclopentyloxyethyl ester, dicyclopentyloxyethyl acrylate, tricyclopentyl methacrylate, tricyclopentyl acrylate, 1-adamantyl methacrylate, 1-adamantyl acrylate, A 2-methyl-2-adamantyl acrylate, 2-methyl-2-adamantyl acrylate, 2-ethyl-2-adamantyl methacrylate, 2-ethyl-2-acrylate Adamantyl ester and the like. The polymer (B) may also have a monomer unit (IV) derived from other monomers. The monomer unit (IV) derived from the other monomer in the polymer (B) may be used alone or in combination of two or more. Examples of other monomers which may be contained in the polymer (B) include methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, and (meth)acrylic acid. Butyl ester, tert-butyl (meth)acrylate, isobutyl (meth)acrylate, hexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-octyl (meth)acrylate , isooctyl (meth)acrylate, n-decyl (meth)acrylate, isodecyl (meth)acrylate, n-decyl (meth)acrylate, isodecyl (meth)acrylate, (methyl) N-dodecyl acrylate, n-tridecyl (meth) acrylate, n-tetradecyl (meth) acrylate, acrylic acid, methacrylic acid, carboxyethyl acrylate, carboxy amyl acrylate, Ikon Acid, maleic acid, fumaric acid, crotonic acid, methacrylic acid, and the like. The polymer (A) and the polymer (B) can be produced by any appropriate method within the range not impairing the effects of the present invention. Examples of such a production method include solution polymerization, emulsion polymerization, bulk polymerization, suspension polymerization, and photopolymerization (active energy ray polymerization). Among these production methods, solution polymerization is preferred from the viewpoint of cost or productivity. The obtained polymer (A) may be a random copolymer, a block copolymer, an alternating copolymer, a graft copolymer or the like. The obtained polymer (B) may be a random copolymer, a block copolymer, an alternating copolymer, a graft copolymer or the like. The method of the solution polymerization is, for example, a method in which a monomer component, a polymerization initiator, or the like is dissolved in a solvent, and heating or polymerization is carried out to obtain a polymer solution. The heating temperature at the time of heating polymerization in the solution polymerization is, for example, 50 ° C to 90 ° C. The heating time in the solution polymerization is, for example, 1 hour to 24 hours. As the solvent which can be used in the solution polymerization, any appropriate solvent can be used without departing from the effects of the present invention. Examples of such a solvent 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; and cyclohexane and A. An alicyclic hydrocarbon such as cyclohexane or an organic solvent such as a ketone such as methyl ethyl ketone or methyl isobutyl ketone. The solvent may be used alone or in combination of two or more. A polymerization initiator can be used in the production of the polymer (A) or the polymer (B). These polymerization initiators may be used alone or in combination of two or more. Examples of such a polymerization initiator include 2,2'-azobisisobutyronitrile, 2,2'-azobis(2-amidinopropane) dihydrochloride, and 2,2'-couple. Nitro-bis[2-(5-methyl-2-imidazolin-2-yl)propane] dihydrochloride, 2,2'-azobis(2-methylpropionamidine) disulfate, 2,2 '-Azobis(N,N'-dimethyleneisobutylphosphonium), 2,2'-azobis[N-(2-carboxyethyl)-2-methylpropionamidine hydrate ( Manufactured by Wako Pure Chemical Co., Ltd., VA-057), etc.; azo-based initiators; potassium persulfate, ammonium persulfate, etc.; bis(2-ethylhexyl)peroxycarbonate, bis(4-third Cyclohexyl)peroxycarbonate, dibutyl butyl peroxycarbonate, tert-butyl peroxy neodecanoate, third hexyl peroxypivalate, tert-butyl peroxypivalate Oxidized dilaurin, di-n-octyl peroxide, 1,1,3,3-tetramethylbutyl peroxy-2-ethylhexanoate, bis(4-methylbenzhydryl) peroxide, peroxidation a peroxide-based initiator such as benzamidine, tributyl butyl isobutyrate, 1,1-di(trihexylperoxy)cyclohexane, tert-butyl hydroperoxide or hydrogen peroxide Persulfate and sodium bisulfite Together, the combination of peroxide with sodium ascorbate or the like of a peroxide redox system with a reducing agent a combination of the initiator. The amount of the polymerization initiator to be used within the range which does not impair the effects of the present invention can be any appropriate amount. The amount of use is, for example, preferably from 0.01 part by weight to 5 parts by weight per 100 parts by weight of the monomer component. In the production of the polymer (A) or the polymer (B), a chain transfer agent can be used. The chain transfer agent may be used alone or in combination of two or more. As such a chain transfer agent, for example, lauryl mercaptan, glycidyl mercaptan, mercaptoacetic acid, 2-mercaptoethanol, thioglycolic acid, methyl thioglycolate, 2-ethyl thioglycolate Hexyl ester, 2,3-dimercapto-1-propanol, and the like. The amount of the chain transfer agent may be any suitable amount insofar as it does not impair the effects of the present invention. The amount of use is, for example, preferably from 0.01 part by weight to 5 parts by weight per 100 parts by weight of the monomer component. In the production of the polymer (A) or the polymer (B), any other suitable additives which can usually be used in the polymerization reaction can be used. The adhesive composition of the present invention may also comprise a crosslinking catalyst. As the crosslinking catalyst, any appropriate crosslinking catalyst can be employed within the range not impairing the effects of the present invention. Examples of such a cross-linking catalyst include metal-based cross-linking catalysts such as tetra-n-butyl titanate, tetraisopropyl titanate, iron acetonitrile, butyl tin oxide, and dioctyl tin dilaurate. (especially tin cross-linking catalyst). The cross-linking catalyst may be one type or two or more types. The amount of the crosslinking catalyst may be any suitable amount insofar as it does not impair the effects of the present invention. The amount of use is, for example, 0.001 part by weight to 0.05 part by weight based on 100 parts by weight of the monomer component. The adhesive composition of the present invention may contain any appropriate other additives within the scope of the effects of the present invention. Examples of such other additives include powders such as decane coupling agents, crosslinking retarders, emulsifiers, colorants, and pigments, dyes, surfactants, plasticizers, adhesion-imparting agents, surface lubricants, and streams. Flat agents, softeners, antioxidants, anti-aging agents, light stabilizers, ultraviolet absorbers, polymerization inhibitors, inorganic fillers, organic fillers, metal powders, granules, foils, and the like. These other additives may be used alone or in combination of two or more. In the adhesive composition of the present invention, it is preferred that the adhesive layer formed by curing the adhesive composition has a loss tangent tan δ of 0.10 or more in the entire temperature range of -40 ° C to 150 ° C. By setting the loss tangent tan δ in the entire temperature range of -40 ° C to 150 ° C to 0.10 or more, it is possible to provide an adhesive composition which forms an adhesive layer having more excellent stress dispersion properties. Further, the method for measuring the loss tangent tan δ is described below. In the adhesive composition of the present invention, the upper limit of the loss tangent tan δ of the adhesive layer formed by hardening the adhesive composition in the entire temperature range of -40 ° C to 150 ° C is preferably 2.40 or less, more preferably 2.20. Hereinafter, it is more preferably 2.00 or less, and still more preferably 1.80 or less. By setting the upper limit of the loss tangent tan δ within the above range, it is possible to provide an adhesive composition which forms an adhesive layer having more excellent stress dispersion properties. In the adhesive composition of the present invention, the lower limit of the loss tangent tan δ of the adhesive layer formed by curing the adhesive composition in the entire temperature range of -40 ° C to 150 ° C is preferably 0.12 or more, more preferably 0.14. The above is further preferably 0.16 or more, and particularly preferably 0.18 or more. By setting the lower limit of the loss tangent tan δ within the above range, it is possible to provide an adhesive composition which forms an adhesive layer having more excellent stress dispersion properties. ≪≪B. Adhesive member 黏 The adhesive member of the present invention has an adhesive layer formed of the adhesive composition of the present invention. The adhesive member of the present invention may comprise only an adhesive layer, and may also comprise an adhesive layer and other members. In the adhesive member of the present invention, when the adhesive layer is exposed as the outermost layer, any appropriate separator (release sheet) may be provided on the exposed surface side. The separator (release sheet) may also serve as the following substrate. The adhesive layer is formed from the adhesive composition of the present invention. For example, the adhesive composition of the present invention is applied to any suitable substrate, and if necessary, dried to form an adhesive layer on the substrate. Then, when the substrate is peeled off, the adhesive member of the present invention containing only the adhesive layer can be obtained. Further, for example, the adhesive composition of the present invention is applied onto any appropriate substrate, and if necessary, dried to form an adhesive layer on the substrate, and the substrate is left as it is, thereby obtaining an adhesive layer and Adhesive member of the substrate. Further, for example, the adhesive composition of the present invention is applied onto any appropriate substrate, and if necessary, dried to form an adhesive layer on the substrate, and the adhesive substrate is peeled off to obtain an adhesive layer placed on other members. (for example, other substrates), whereby an adhesive member comprising an adhesive layer and a substrate is obtained. Further, for example, the adhesive composition of the present invention is applied onto any appropriate substrate, and if necessary, dried to form an adhesive layer on the substrate, and an adhesive layer formed on the substrate is transferred to other members. (for example, other substrates), whereby an adhesive member comprising an adhesive layer and a substrate is obtained. Examples of the coating method of 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. . The substrate may be formed of a single layer or may comprise multiple layers. The substrate can be extended. The thickness of the substrate can be set to any appropriate thickness depending on the application. The thickness of the substrate is preferably from 4 μm to 500 μm, more preferably from 10 μm to 400 μm, still more preferably from 15 μm to 350 μm, and particularly preferably 20, from the viewpoint of sufficiently exhibiting the effects of the present invention. Mm ~ 300 μm. As the material of the substrate, any appropriate material can be employed depending on the use. Examples of such a material include plastic, paper, metal film, and non-woven fabric. Among such materials, plastics are preferred in terms of further exhibiting the effects of the present invention. Examples of the plastics include a polyester resin, a polyolefin resin, a polyamide resin, and a polyimide resin. Examples of the polyester resin include polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate. Examples of the polyolefin-based resin include a homopolymer of an olefin monomer, a copolymer of an olefin monomer, and the like. Specific examples of the polyolefin-based resin include a homopolypropylene; a propylene-based copolymer having a vinyl component as a copolymer component, a random system, a graft system, and the like; a reactive TPO; a low density, High-density, linear low-density, ultra-low-density ethylene-based polymer; ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid An ethylene-based copolymer such as a butyl ester copolymer, an ethylene-methacrylic acid copolymer, or an ethylene-methyl methacrylate copolymer. In terms of the effect of the present invention, as the plastic, among these, a polyester resin is preferable, and polyethylene terephthalate is more preferable. The substrate may optionally contain any suitable additives. Examples of the additive which may be contained in the substrate include an antioxidant, an ultraviolet absorber, a light stabilizer, an antistatic agent, a filler, a pigment, and the like. The kind, number, and amount of the additives which can be contained in the substrate can be appropriately set depending on the purpose. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an adhesive member according to an embodiment of the present invention. In FIG. 1, the adhesive member 100 of the present invention comprises a substrate 10, an adhesive layer 20, and a separator 30. ≪≪C. Optical member and electronic member ≫≫ The adhesive member of the present invention has an adhesive layer excellent in stress dispersibility. Therefore, it can be suitably used as a protective material for protecting an optical member, an electronic member from an external impact, or the like. That is, the optical member of the present invention includes the adhesive member of the present invention. Moreover, the electronic component of the present invention includes the adhesive member of the present invention. [Examples] Hereinafter, the present invention will be specifically described by way of Examples, but the present invention is not limited by the Examples. Further, the test and evaluation methods in the examples and the like are as follows. In the case of "parts", unless otherwise specified, "parts by weight" is referred to as "%", and unless otherwise specified, "% by weight" is used. <Measurement of Weight Average Molecular Weight> The weight average molecular weight (Mw) of the polymer was measured using a GPC apparatus (HLC-8220GPC) manufactured by TOSOH CORPORATION. Further, the weight average molecular weight (Mw) was determined by using a polystyrene equivalent value. The measurement conditions are as follows. Sample concentration: 0.2% by weight (THF solution) Sample injection amount: 10 μl Dissolution THF Flow rate: 0.6 ml/min Measurement temperature: 40 ° C Sample column: TSKguardcolumn SuperHZ-H (1) + TSKgel Super HZM-H (2 Reference column: TSKgel SuperH-RC (1 piece) Detector: differential refractometer (RI) <Production of adhesive sheet> The resulting adhesive composition was applied by a grooved roll to a thickness of 50 μm after drying. A release-treated surface of a polyester film (trade name: MRF, manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) having a thickness of 38 μm which was subjected to a release treatment with a flavonoid on one side, at a drying temperature of 130 ° C and a drying time of 3 minutes. Curing and drying are carried out under the conditions. Thus, an adhesive layer was formed on the substrate. Then, a polyester film (trade name: MRF, manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) having a thickness of 38 μm which was subjected to a release treatment with a single-faced fluorenone, was used as the adhesive layer side of the film. Covered on the surface of the adhesive layer. In this way, an adhesive sheet is produced. <Measurement of glass transition temperature (Tg), storage modulus, loss elastic modulus, tan δ (loss tangent)> Using a dynamic viscoelasticity measuring apparatus (ARES) manufactured by Rheometrics Co., Ltd., it was determined by the following method. Only the adhesive layer is taken out from the obtained adhesive sheet, laminated, and formed into a thickness of about 2 mm, which is punched into 7.9 mm, cylindrical particles were prepared and used as samples for measurement. Fix the above test sample to The fixture of the 7.9 mm parallel plate was measured for the temperature dependence of the storage modulus G' and the loss elastic modulus G'' by the dynamic viscoelasticity measuring device described above, and tan δ was calculated in the form of tan δ=G''/G'. Further, the temperature at which the obtained tan δ curve became maximum was defined as the glass transition temperature (Tg) (° C.). The measurement conditions are as follows. Measurement: Shear mode temperature range: -70 ° C to 150 ° C Temperature increase rate: 5 ° C / min Frequency: 1 Hz [Production Example 1]: (meth)acrylic polymer (1) With stirring blade, thermometer, nitrogen To the four-necked flask of the introduction tube and the condenser, 2-ethylhexyl acrylate (manufactured by Nippon Shokubai Co., Ltd.) was added: 100 parts by weight of 2-hydroxyethyl acrylate (manufactured by Toagosei Co., Ltd.): 4 parts by weight, 2,2'-azobisisobutyronitrile (manufactured by Wako Pure Chemical Industries, Ltd.) as a polymerization initiator: 0.2 parts by weight, ethyl acetate: 156 parts by weight, while slowly stirring, introducing nitrogen gas into the flask The liquid temperature was maintained at around 65 ° C, and polymerization was carried out for 6 hours to prepare a solution (40% by weight) of a (meth)acrylic polymer (1) having a weight average molecular weight of 550,000. [Production Example 2]: (meth)acrylic polymer (2) To a four-necked flask equipped with a stirring blade, a thermometer, a nitrogen gas introduction tube, and a condenser, 2-ethylhexyl acrylate (Nippon Shokubai Co., Ltd.) was added. .)): 100 parts by weight, 4-hydroxybutyl acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.): 10 parts by weight, acrylic acid (manufactured by Toagosei Co., Ltd.): 0.02 parts by weight, 2, 2'- as a polymerization initiator Azobisisobutyronitrile (manufactured by Wako Pure Chemical Industries, Ltd.): 0.2 parts by weight and ethyl acetate: 156 parts by weight, while slowly stirring, nitrogen gas was introduced, and the temperature in the flask was maintained at around 65 ° C to carry out 6 An hourly polymerization reaction was carried out to prepare a solution (40% by weight) of a (meth)acrylic polymer (2) having a weight average molecular weight of 540,000. [Production Example 3]: (meth)acrylic polymer (3) To a four-necked flask equipped with a stirring blade, a thermometer, a nitrogen gas introduction tube, and a condenser, butyl acrylate (manufactured by Nippon Shokubai Co., Ltd.) was added: 99 parts by weight of 4-hydroxybutyl acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.): 1 part by weight of 2,2'-azobisisobutyronitrile as a polymerization initiator (manufactured by Wako Pure Chemical Industries, Ltd.): 1 5% by weight of ethyl acetate: 156 parts by weight, while slowly stirring, nitrogen gas was introduced, and the temperature in the flask was maintained at around 60 ° C, and polymerization was carried out for 7 hours to prepare a (meth)acrylic acid having a weight average molecular weight of 1.6 million. A solution of the polymer (3) (39% by weight). [Production Example 4]: (meth)acrylic polymer (4) To a four-necked flask equipped with a stirring blade, a thermometer, a nitrogen gas introduction tube, and a condenser, butyl acrylate (manufactured by Nippon Shokubai Co., Ltd.) was added: 92 parts by weight of N-propylene decylmorpholine (manufactured by Kohjin Co., Ltd.): 5 parts by weight, acrylic acid (manufactured by Toagosei Co., Ltd.): 2.9 parts by weight, 2,2'-azo as a polymerization initiator Diisobutyronitrile (manufactured by Wako Pure Chemical Industries, Ltd.): 0.1 parts by weight, ethyl acetate: 200 parts by weight, while slowly stirring, introducing nitrogen gas, maintaining the liquid temperature in the flask at around 55 ° C, and performing polymerization for 8 hours. The reaction was carried out to prepare a solution (33% by weight) of a (meth)acrylic polymer (4) having a weight average molecular weight of 1.8 million. [Production Example 5]: (meth)acrylic polymer (5) To a four-necked flask equipped with a stirring blade, a thermometer, a nitrogen gas introduction tube, and a condenser, butyl acrylate (manufactured by Nippon Shokubai Co., Ltd.) was added: 95 parts by weight, acrylic acid (manufactured by Toagosei Co., Ltd.): 5 parts by weight of 2,2'-azobisisobutyronitrile (manufactured by Wako Pure Chemical Industries, Ltd.) as a polymerization initiator: 0.2 parts by weight, ethyl acetate: 156 parts by weight, while slowly stirring, nitrogen gas was introduced, and the temperature in the flask was maintained at around 63 ° C, and polymerization was carried out for 10 hours to prepare a (meth)acrylic polymer (5) having a weight average molecular weight of 700,000. Solution (40% by weight). [Production Example 6]: (meth)acrylic polymer containing an alicyclic structure (6) A glass of a homopolymer (polyhexyl methacrylate) as a monomer component of cyclohexyl methacrylate Transfer temperature: 66 ° C]: 95 parts by weight, acrylic acid: 5 parts by weight, 2-mercaptoethanol as a chain transfer agent: 3 parts by weight, 2,2'-azobisisobutyronitrile as a polymerization initiator: 0.2 In a portion by weight, and toluene: 103.2 parts by weight as a polymerization solvent, the mixture was placed in a separable flask and stirred for 1 hour while introducing nitrogen gas. After removing oxygen in the polymerization system, the temperature was raised to 70 ° C, the reaction was carried out for 3 hours, and further, the reaction was carried out at 75 ° C for 2 hours to obtain a (meth)acrylic polymer (6) having a weight average molecular weight of 4000. Solution (50% by weight). [Production Example 6] (Meth)acrylic polymer (7) having an alicyclic structure Into a four-necked flask equipped with a stirring blade, a thermometer, a nitrogen gas introduction tube, a condenser, and a dropping funnel, toluene: 100 weight Dichloropentyl methacrylate (DCPMA) (trade name: FA-513M, manufactured by Hitachi Chemical Co., Ltd.): 60 parts by weight, methyl methacrylate (MMA): 40 parts by weight, and as a chain transfer agent Methyl thioglycolate: 3.5 parts by weight. Then, after stirring at 70 ° C for 1 hour under a nitrogen atmosphere, 2,2'-azobisisobutyronitrile as a polymerization initiator was added: 0.2 part by weight, and reacted at 70 ° C for 2 hours, followed by 80 ° C. After reacting for 4 hours, the reaction was carried out at 90 ° C for 1 hour to obtain a solution (51% by weight) of a (meth)acrylic polymer (7) having a weight average molecular weight of 4000. [Example 1] The solution of the (meth)acrylic polymer (1) was 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1), and the total solid content was 25 The weight % was diluted with ethyl acetate, and stirred by a disperser to obtain an adhesive composition (1) containing an acrylic resin. The results are shown in Table 1. [Example 2] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. In an amount of 0.005 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, 0.005 parts by weight of ethyl acetonide iron as a crosslinking catalyst (Japanese chemical industry) The company's manufacturing method was diluted with ethyl acetate so that the total solid content was 25% by weight, and the mixture was stirred by a disperser to obtain an adhesive composition (2) containing an acrylic resin. The results are shown in Table 1. [Example 3] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. 0.1% by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, and 0.005 parts by weight of a ruthenium acetonide iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) It is manufactured by the company, diluted with ethyl acetate so that the total solid content is 25% by weight, and stirred by a disperser to obtain an adhesive composition (3) containing an acrylic resin. The results are shown in Table 1. [Example 4] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. 0.05 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, and 0.005 parts by weight of a ruthenium acetonide iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) (manufactured by the company), a solution of 5 parts by weight of the (meth)acrylic polymer (6) in terms of solid content, diluted with ethyl acetate so that the total solid content is 25% by weight, and dispersed The machine was stirred to obtain an adhesive composition (4) containing an acrylic resin. The results are shown in Table 1. [Example 5] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. 0.1% by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, and 0.005 parts by weight of a ruthenium acetonide iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) (manufactured by the company), a solution of 5 parts by weight of the (meth)acrylic polymer (6) in terms of solid content, diluted with ethyl acetate so that the total solid content is 25% by weight, and dispersed The machine was stirred to obtain an adhesive composition (5) containing an acrylic resin. The results are shown in Table 1. [Example 6] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. In the case of 0.3 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, 0.005 parts by weight of the acetonitrile iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) (manufactured by the company), a solution of 5 parts by weight of the (meth)acrylic polymer (6) in terms of solid content, diluted with ethyl acetate so that the total solid content is 25% by weight, and dispersed The machine was stirred to obtain an adhesive composition (6) containing an acrylic resin. The results are shown in Table 1. [Example 7] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. 0.1% by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, and 0.005 parts by weight of a ruthenium acetonide iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) (manufactured by the company), a solution of 5 parts by weight of the (meth)acrylic polymer (7) in terms of solid content, diluted with ethyl acetate so that all the solid components are 25% by weight, and dispersed The machine was stirred to obtain an adhesive composition (7) containing an acrylic resin. The results are shown in Table 1. [Example 8] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. In the case of 0.3 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, 0.005 parts by weight of the acetonitrile iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) (manufactured by the company), a solution of 5 parts by weight of the (meth)acrylic polymer (7) in terms of solid content, diluted with ethyl acetate so that all the solid components are 25% by weight, and dispersed The machine was stirred to obtain an adhesive composition (8) containing an acrylic resin. The results are shown in Table 1. [Example 9] The solution of the (meth)acrylic polymer (2) was 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (2), and the total solid content was 25 The weight % was diluted with ethyl acetate, and stirred by a disperser to obtain an adhesive composition (9) containing an acrylic resin. The results are shown in Table 1. [Example 10] The solution of the (meth)acrylic polymer (2) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (2) in terms of solid content. 0.1 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, 0.05 parts by weight of TETRAD-C (manufactured by Mitsubishi Gas Chemical Co., Ltd.), and solid content in terms of solid content. In an amount of 0.005 parts by weight, as a cross-linking catalyst, acetonitrile iron (manufactured by Nippon Chemical Industry Co., Ltd.), and diluted with ethyl acetate so as to have a total solid content of 25% by weight, and stirred by a disperser, An adhesive composition (10) containing an acrylic resin was obtained. The results are shown in Table 1. [Example 11] The solution of the (meth)acrylic polymer (3) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (3) in terms of solid content. 0.02 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, and 0.005 parts by weight of ethyl acetonide iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) The company manufactured by the company was diluted with ethyl acetate so that the total solid content was 25% by weight, and the mixture was stirred by a disperser to obtain an adhesive composition (11) containing an acrylic resin. The results are shown in Table 1. [Example 12] The solution of the (meth)acrylic polymer (4) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (4) in terms of solid content. In the case of 0.3 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, 0.005 parts by weight of the acetonitrile iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) The company manufactured by the company was diluted with ethyl acetate so that the total solid content was 25% by weight, and the mixture was stirred by a disperser to obtain an adhesive composition (12) containing an acrylic resin. The results are shown in Table 1. [Example 13] The solution of the (meth)acrylic polymer (5) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (5) in terms of solid content. 0.075 parts by weight of TETRAD-C (manufactured by Mitsubishi Gas Chemical Co., Ltd.) as a crosslinking agent, and 0.005 parts by weight of ethyl acetonide iron as a crosslinking catalyst in terms of solid content (manufactured by Nippon Chemical Industry Co., Ltd.) The mixture was diluted with ethyl acetate so that the total solid content was 25% by weight, and the mixture was stirred by a disperser to obtain an adhesive composition (13) containing an acrylic resin. The results are shown in Table 1. [Example 14] The solution of the (meth)acrylic polymer (5) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (5) in terms of solid content. 0.075 parts by weight of TETRAD-C (manufactured by Mitsubishi Gas Chemical Co., Ltd.) as a crosslinking agent, and 0.005 parts by weight of ethyl acetonide iron as a crosslinking catalyst in terms of solid content (manufactured by Nippon Chemical Industry Co., Ltd.) 20 parts by weight of a solution of the (meth)acrylic polymer (6) in terms of a solid content, and diluted with ethyl acetate so that the total solid content is 25% by weight, and stirred by a disperser. An adhesive composition (14) containing an acrylic resin was obtained. The results are shown in Table 1. [Comparative Example 1] The solution of the (meth)acrylic polymer (1) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1) in terms of solid content. 0.5 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, 0.005 parts by weight of a ruthenium acetonide iron as a crosslinking catalyst in terms of solid content (Japanese chemical industry) It is manufactured by the company, diluted with ethyl acetate so that all the solid content is 25% by weight, and stirred by a disperser to obtain an adhesive composition (C1) containing an acrylic resin. The results are shown in Table 1. [Comparative Example 2] The solution of the (meth)acrylic polymer (2) was added in an amount of 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (2) in terms of solid content. 0.45 parts by weight of CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent, 0.3 parts by weight of TETRAD-C (manufactured by Mitsubishi Gas Chemical Co., Ltd.), solid content in terms of solid content conversion In an amount of 0.005 parts by weight, as a cross-linking catalyst, acetonitrile iron (manufactured by Nippon Chemical Industry Co., Ltd.), and diluted with ethyl acetate so as to have a total solid content of 25% by weight, and stirred by a disperser, An adhesive composition (C2) containing an acrylic resin was obtained. The results are shown in Table 1. [Table 1] [Example 15] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (1) obtained in Example 1, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Corporation, trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 16] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (2) obtained in Example 2, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Co., Ltd., trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 17] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (4) obtained in Example 4, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Corporation, trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 18] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (7) obtained in Example 7, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Co., Ltd., trade name "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 19] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (9) obtained in Example 9, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Corporation, trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 20] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (10) obtained in Example 10, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Corporation, trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 21] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (11) obtained in Example 11, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Co., Ltd., trade name "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 22] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (12) obtained in Example 12, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Co., Ltd., trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 23] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (13) obtained in Example 13, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Corporation, trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 24] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (14) obtained in Example 14, and attached to a polarizing plate as an optical member (manufactured by Nitto Denko Corporation, trade name) "TEG1465DUHC"), an optical member to which an adhesive sheet is attached is obtained. [Example 25] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (1) obtained in Example 1, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 26] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (2) obtained in Example 2, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 27] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (4) obtained in Example 4, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., a product The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 28] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (7) obtained in Example 7, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., a product The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 29] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (9) obtained in Example 9, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., a product The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 30] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (10) obtained in Example 10, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 31] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (11) obtained in Example 11, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., a product The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 32] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (12) obtained in Example 12, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., a product The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 33] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (13) obtained in Example 13, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Example 34] The polyester film was peeled off from one side of the adhesive sheet formed by the adhesive composition (14) obtained in Example 14, and attached to a conductive film as an electronic component (manufactured by Nitto Denko Co., Ltd., The name "ELECRYSTA V270L-TFMP") is obtained by attaching an electronic component to the adhesive sheet. [Industrial Applicability] The adhesive member having the adhesive layer formed of the adhesive composition of the present invention can be suitably used as a protective material for protecting an optical member or an electronic member from an external impact or the like, for example.

10‧‧‧基材
20‧‧‧黏著劑層
30‧‧‧隔離膜
100‧‧‧黏著構件10‧‧‧Substrate
20‧‧‧Adhesive layer
30‧‧‧Separator
100‧‧‧Adhesive members

圖1係本發明之一實施形態之黏著構件之概略剖視圖。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an adhesive member according to an embodiment of the present invention.

10‧‧‧基材 10‧‧‧Substrate

20‧‧‧黏著劑層 20‧‧‧Adhesive layer

30‧‧‧隔離膜 30‧‧‧Separator

100‧‧‧黏著構件 100‧‧‧Adhesive members

Claims (8)

一種黏著劑組合物，其包含具有單體單元(I)與單體單元(II)之聚合物(A)，該單體單元(I)源自具有碳數1～20之烷基作為烷基酯部分之(甲基)丙烯酸烷基酯，該單體單元(II)源自分子內具有OH基及/或COOH基之(甲基)丙烯酸酯；並且 將該黏著劑組合物中之NCO基之莫耳含有比率設為[NCO]、將該黏著劑組合物中之環氧基之莫耳含有比率設為[環氧基]、將該黏著劑組合物中之OH基之莫耳含有比率設為[OH]、將該黏著劑組合物中之COOH基之莫耳含有比率設為[COOH]時，([NCO]＋[環氧基])/([OH]＋[COOH])＜0.05。An adhesive composition comprising a polymer (A) having a monomer unit (I) and a monomer unit (II) derived from an alkyl group having 1 to 20 carbon atoms as an alkyl group An alkyl (meth)acrylate having an ester moiety derived from a (meth) acrylate having an OH group and/or a COOH group in the molecule; and an NCO group in the adhesive composition The molar content ratio is set to [NCO], the molar content ratio of the epoxy group in the adhesive composition is [epoxy group], and the molar content ratio of the OH group in the adhesive composition is When [OH] is set and the molar content ratio of the COOH group in the adhesive composition is [COOH], ([NCO]+[epoxy])/([OH]+[COOH])< 0.05. 如請求項1之黏著劑組合物，其包含2官能以上之有機多異氰酸酯系交聯劑及/或環氧系交聯劑。The adhesive composition according to claim 1, which comprises a bifunctional or higher organic polyisocyanate crosslinking agent and/or an epoxy crosslinking agent. 如請求項1之黏著劑組合物，其包含具有源自通式(1)所表示之含脂環式結構之(甲基)丙烯酸酯之單體單元、並且重量平均分子量為1000以上、未達30000的聚合物(B)， CH2 =C(R1 )COOR2 …(1) (通式(1)中，R1 為氫原子或甲基，R2 為具有脂環式結構之烴基)。The adhesive composition of claim 1, which comprises a monomer unit derived from a (meth) acrylate having an alicyclic structure represented by the general formula (1), and having a weight average molecular weight of 1,000 or more and less than Polymer (B) of 30000, CH 2 =C(R 1 )COOR 2 (1) (In the formula (1), R 1 is a hydrogen atom or a methyl group, and R 2 is a hydrocarbon group having an alicyclic structure) . 如請求項2之黏著劑組合物，其包含具有源自通式(1)所表示之含脂環式結構之(甲基)丙烯酸酯之單體單元、並且重量平均分子量為1000以上、未達30000的聚合物(B)， CH2 =C(R1 )COOR2 …(1) (通式(1)中，R1 為氫原子或甲基，R2 為具有脂環式結構之烴基)。An adhesive composition according to claim 2, which comprises a monomer unit derived from a (meth) acrylate having an alicyclic structure represented by the formula (1), and having a weight average molecular weight of 1,000 or more and less than Polymer (B) of 30000, CH 2 =C(R 1 )COOR 2 (1) (In the formula (1), R 1 is a hydrogen atom or a methyl group, and R 2 is a hydrocarbon group having an alicyclic structure) . 如請求項1至4中任一項之黏著劑組合物，其中由上述黏著劑組合物形成之黏著劑層於-40℃～150℃之整個溫度區域中之損耗正切tanδ為0.10以上。The adhesive composition according to any one of claims 1 to 4, wherein the adhesive layer formed of the above adhesive composition has a loss tangent tan δ of 0.10 or more over the entire temperature range of -40 ° C to 150 ° C. 一種黏著構件，其具有由如請求項1至5中任一項之黏著劑組合物形成之黏著劑層。An adhesive member having an adhesive layer formed of the adhesive composition according to any one of claims 1 to 5. 一種光學構件，其具備如請求項6之黏著構件。An optical member comprising the adhesive member of claim 6. 一種電子構件，其具備如請求項6之黏著構件。An electronic component comprising the adhesive member of claim 6.
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