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TW201137068A - Adhesive for optical use, adhesive sheet for optical use and optical component having adhesive layer - Google Patents

Adhesive for optical use, adhesive sheet for optical use and optical component having adhesive layer Download PDF

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Publication number
TW201137068A
TW201137068A TW100108852A TW100108852A TW201137068A TW 201137068 A TW201137068 A TW 201137068A TW 100108852 A TW100108852 A TW 100108852A TW 100108852 A TW100108852 A TW 100108852A TW 201137068 A TW201137068 A TW 201137068A
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TW
Taiwan
Prior art keywords
meth
adhesive
optical
component
mass
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TW100108852A
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Chinese (zh)
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TWI504707B (en
Inventor
Atsushi Kurokawa
Takayuki Arai
Tadashi Matano
yuuki Ozawa
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Lintec 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
    • 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
    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • 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]
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
    • 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
    • C09J2301/302—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 the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer

Landscapes

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

Abstract

To provide an adhesive for optical use to be used for laminating an optical component such as polarizing plate to an adherent which has an antistatic property measured as surface resistivity of about 5x10<SP>10</SP>Ω/□ or less, good adhesive strength, good release property, good anti light-leakage property, good durability and property for preventing bleeding (non-separating) of anti-static agent. The adhesive is obtained by crosslinking a material for forming an adhesive which contains (A) a (meth)acrylic ester copolymer containing as structural units thereof (a-1) 5-90% by mass of a (meth)acrylic monomer having an oxyalkylene group, (a-2) less than 10% by mass of a (meth)acrylic monomer having a reactive group and (a-3) a (meth)acrylic ester, (B) a (meth)acrylic ester copolymer containing as a structural unit thereof a (meth)acrylic monomer having a reactive group, (C) a compound curable with an active energy ray and (D) an anti-static agent, component (A) and component (B) being contained at a ratio of 100: 1 to 100: 50 by mass in the material.

Description

201137068 六、發明說明： 【發明所屬之技術領域】 本發明關於光學用黏著劑、光學用黏著片和具有黏著 劑層的光學構件。更詳細地說，本發明關於光學用黏著劑、 具備剝離薄膜的光學用黏著片、以及將上述光學用黏著劑 構成的層設置在偏光板等光學構件上而構成的具備黏著劑 層的光學構件，該光學用黏著劑於黏附體上積層偏光板等 光學構件時使用’具有抗靜電性能、同時具有良好的黏著 力、再剝離性（再加工性）和耐久性，且還兼具有抗靜電劑 的防洩漏性。 【先前技術】 在液晶顯示器等中使用的偏光板、相位差板、光學補 償膜、反射片、輝度提高薄膜等的光學構件，藉由黏著劑 層貼合在液晶胞等上。 液晶胞通常具有如下結構：設置形成了配向層的兩張 透明電極基板，使該配向層爲內側，藉由墊片形成規定的 間隙，將其周邊密封，在該間隙內挾持液晶材料，以及在 上述兩張透明電極基板的外側表面分別藉由黏著劑層設置 偏光板。 圖1爲表示上述偏光板一個例子結構的立體圖。如該 圖所示，該偏光板10通常具有這樣的3層結構：在聚乙烯 醇類偏光鏡1的兩面上貼合三乙醯基纖維素（TAC)薄膜2和 2 ’，此外，在其一面上形成用於貼付液晶胞等光學構件的 -4 - 201137068 黏著劑層3，再在該黏著劑層3上貼付剝離片4 »此外，在 該偏光板與該黏著劑層3相反側的面上，通常設置有表面 保護薄膜5。 在上述液晶胞貼付該偏光板的情況下，首先剝離剝離 片4，藉由露出的黏著劑層3貼付在液晶胞上，然後剝離 表面保護薄膜5。 在剝離上述剝離片4或表面保護薄膜5時，這些片或 薄膜以及偏光板藉由塑膠材料構成，因此電絕緣性高，會 產生靜電。此時，如果在殘留有產生的靜電的狀態下貼合 液晶胞，則恐怕會在液晶分子的配向中產生紊亂。由此產 生的液晶分子的配向紊亂有不會恢復的危險，而且，即使 在恢復的情況下，在液晶顯示器的製造步驟中，被指出有 直至恢復才能進行下一步驟，製造步驟被延緩的問題。此 外，存在靜電會引起吸引粉塵或灰塵等問題。 爲了處理該問題，目前提出了在剝離片的基材上混合 抗靜電劑等對策，但僅藉由該對策無法獲得充分的效果， 要求在黏著劑層中也賦予抗靜電性能。 就具有抗靜電性能的黏著劑組合物而言，已知有混合 界面活性劑等抗靜電劑的黏著劑組合物。由此，在黏著劑 組合物中混合界面活性劑等防電劑的情況下，能賦予抗靜 電性能，但界面活性劑與黏著劑聚合物的相溶性惡化，因 此在形成黏著劑層時，隨時間、或在熱、濕熱的條件下， 存在該界面活性劑洩漏，黏附體被污染，黏著力下降等問 題。 -5- 201137068 對此，揭示有爲了改善抗靜電劑和黏著劑聚合物的相 溶性，混合了具有聚氧化烯結構的有機鹽作爲抗靜電劑的 抗靜電性壓敏黏著劑（例如參見專利文獻1)。 然而，具有該聚氧化烯結構的有機鹽與在偏光板的貼 付等中，主要使用的丙烯酸類聚合物的相溶性並未達夠， 因此，藉由耐熱試驗，尤其是冷熱迴圈試驗，該有機鹽恐 怕會洩漏，產生剝離。此外，如果使用有機鹽，則還存在 有時會殘留臭氣的問題。 另外，還揭示有如下黏著劑組合物：在包含具有碳原 子數爲6〜14的烷基的（甲基）丙烯酸類單體爲主成分的（甲 基）丙烯酸類聚合物以及聚醚多元醇化合物和鹼金屬鹽的 黏著劑組合物中，上述（甲基）丙烯酸類聚合物的酸價爲1.0 以下，相對於1〇〇重量份上述（甲基）丙烯酸類聚合物，含 有未達0.1重量份的上述鹼金屬鹽（例如參見專利文獻2)。 然而，該黏著劑組合物使用了聚醚多元醇化合物和鹼 金屬鹽的組合作爲導電劑，無法全部充分滿足防剝離帶電 性、黏著性和耐久性等。 就經賦予了抗靜電性能的光學用黏著劑而言，通常要 求能形成表面電阻率爲5χ101()Ω/□以下程度的黏著劑層。 另一方面，在作爲液晶顯示器構件的偏光板，尤其是 與視角度擴大薄膜等一體化而得到的偏光板與液晶胞的貼 合’偏光板與相位差板的貼合、相位差板彼此的貼合和相 位差板與液晶胞的貼合中，要求具有“耐久性”、耐受性（以 -6- 201137068 下爲“耐漏光性”）的黏著劑層的光學用黏著片（例如參見專 利文獻3)，該“耐久性”爲在各種環境下均不會產生鼓脹剝 落，該耐受性爲對於伴隨薄膜的收縮、膨脹這樣的尺寸變 化而導致應力變化所引起的漏光的耐受性。 然而，現狀是能形成具有表面電阻率爲5x1 01()Ω/□以下 程度的優異的抗靜電性，且兼具充分的耐久性和耐漏光性 的黏著劑層的光學用黏著劑迄今尙未發現。 就本發明相關的現有文獻而言，例如，揭示有具有氧 化烯基團的反應性單體作爲單體成分的（甲基）丙烯酸類聚 合物與含有鹼金屬鹽的黏著劑組合物（例如參見專利文獻 4)，或在玻璃轉移溫度不同的兩種聚合物中含有鋰鹽的黏 著劑組合物（例如參見專利文獻5)。 爲了在任意的黏著劑組合物中均能發揮出抗靜電性， 作爲構成聚合物的單體，多爲使用親水性單體的組成。因 此，就最終剝離丟棄的表面保護薄膜而言，認爲在藉由上 述揭示的黏著劑組合物形成的黏著劑層具有足夠的性能， 但如本發明，在形成液晶顯示器的部分結構體時，充分設 想耐久性和耐漏光性存在問題。 就本發明最接近的現有文獻而言，提出了專利文獻6, 在該專利文獻6中’揭示了在含有將包含羥基的單體共聚 的丙烯酸類共聚物、將丙烯酸共聚的丙烯酸類共聚物、多 官能團丙烯酸酯類單體的黏著劑組合物中含有各種抗靜電 劑的黏著劑組合物° 201137068 現有技術文獻 專利文獻 專利文獻1 日本特表20〇4·53694〇號公報 專利文獻2 日本特開2005-325255號公報 專利文獻3 日本專利第3272921(日本特開平9-87593)號 公報 專利文獻4 日本特開20〇7-92〇56號公報 專利文獻5 日本特開2008-248223號公報 專利文獻6 曰本特開2008_32852號公報 【發明內容】 藉由上述專利文獻6公開的黏著劑組合物形成的黏著 劑層，具有耐久性和耐漏光性，且具有一定的抗靜電性， 然而，在該文獻的黏著劑組合物中，硏究了添加各種抗靜 電劑’但無法在具有足夠的耐久性和耐漏光性的基礎上， 發揮表面電阻率爲5χ101()Ω/□以下程度的優異的抗靜電性。 本發明是鑒於這樣的狀況而完成者，其目的在於提供 一種光學用黏著劑、具備使用其的剝離膜的光學用黏著片 和具備黏著劑層的光學構件，該光學用黏著劑在黏附體上 積層偏光板等光學構件時使用，具有表面電阻率爲 5χ1 01()Ω/□以下程度的抗靜電性能，同時具有良好的黏附 力、再剝離性、耐漏光性和耐久性，且還兼具抗靜電劑的 防洩漏性（非析出性）° -8 - 201137068 本發明人爲了實現上述目的，進行了多次精心的硏 究，結果發現根據下述黏著劑能實現該目的，該黏著劑由 黏著劑形成材料交聯而得到，該黏著劑形成材料含有：（a) (甲基）丙嫌酸酯共聚物，其具有以下三者作爲結構單元： 特定量的包含氧化烯基團的（甲基）丙烯酸類單體、特定量 的包含反應性基團的（甲基）丙烯酸類單體和（甲基）丙烯酸 院酯；（B)具有包含反應性基團的（甲基）丙烯酸類單體作爲 結構單元的（甲基）丙烯酸酯共聚物；（c)活性能量線固化型 化合物和（D)抗靜電劑，且上述（A)成分和（B)成分的含有比 例在特定範圍內。 本發明是基於該發現完成的。 即，本發明提供如下： [1] —種光學用黏著劑，其特徵在於由黏著劑形成材料 交聯而得到，該黏著劑形成材料含有：（A)(甲基）丙烯酸酯 共聚物，其具有以下三者作爲結構單元·· 5~90質量％(a-i) 包含氧化烯基團的（甲基）丙烯酸類單體、未達10質量％ (a_2) 包含反應性基團的（甲基）丙烯酸類單體、（a-3)(甲基）丙烯酸 烷酯；（B)具有包含反應性基團的（甲基）丙烯酸類單體作爲 結構單元的（甲基）丙烯酸酯共聚物；（C)活性能量線固化型 化合物和（D)抗靜電劑，且上述（A)成分和（B)成分的含有比 例以質量比計爲100:1〜100:50, [2 ]如上述[1 ]所述的光學用黏著劑，其中，相對於總計 100質量份的（A)成分和（B)成分，（C)活性能量線固化型化 合物的含量爲1〜50質量份， -9- 201137068 [3] 如上述[1]或[2]所述的光學用黏著劑，其中，在（^) 包含氧化烯基團的（甲基）丙烯酸類單體中，氧化烯基團的 碳原子數爲2 ~4，且該氧化烯基團的個數爲 [4] 如上述[1]〜[3]任一項所述的光學用黏著劑，其中， (a-2)包含反應性基團的（甲基）丙烯酸類單體爲包含羥基的 (甲基）丙烯酸類單體， [5] 如上述[1]〜[4]任一項所述的光學用黏著劑，其中， 作爲（B)成分的結構單元的包含反應性基團的（甲基）丙烯酸 類單體爲包含羧基的（甲基）丙烯酸類單體， [6] 如上述[1]〜[5]任一項所述的光學用黏著劑，其中， 相對於總計100質量份的（A)成分和（B)成分和（C)成分，（D) 抗靜電劑的含量爲0.1〜10質量份， [7] 如上述[1]~[6]任一項所述的光學用黏著劑，其中， 黏著劑形成材料還含有（E)交聯劑， [8] —種具有剝離薄膜的光學用黏著片，其藉由如上述 [1]〜[7]任意一項所述的光學用黏著劑形成， [9] 一種具有黏著劑層的光學構件，其中，在光學構件 上具備由如上述[1]〜[7]任意一項所述的光學用黏著劑形成 的層， [10] 如上述[9]所述的具備黏著劑層的光學構件，其 中’光學構件是偏光板。 此外’就本發明的較佳方式而言，可以列舉 (a)—種光學用黏著劑，其中，上述（C)活性能量線固化 型化合物爲多官能團（甲基）丙烯酸酯類單體， -10- 201137068 (b) —種光學用黏著劑’其中，上述（D)抗靜電劑包含 由通式（1)表示的固體狀或液體狀的離子性化合物， (Za + )m (Ab-)„ …⑴ [式中’ Za +爲陽離子’ Ab-爲陰離子，a、b、m和η各 自爲1〜3的整數，滿足axm= bxn的關係。當za +存在多個 時，多個Za +可以相同’也可以不同，當Ab·存在多個時， 多個Ab_可以相同，也可以不同]， (c) 一種光學用黏著劑’其中，上述黏著劑形成材料還 包含矽烷偶合劑， (d) —種光學用黏著劑’其中，上述（E)交聯劑爲異氰酸 酯類交聯劑， (e) —種光學用黏著劑’其中’上述（a—〗）含有氧化烯基 團的（甲基）丙烯酸類單體爲丙烯酸2-(甲氧基）乙醋或丙燃 酸乙基卡畢醇酯， (f) 一種光學用黏著劑’其中，上述黏著劑形成材料的 交聯化藉由加熱處理和活性能量線照射處理進行， (g) —種黏著片，其挾持光學用黏著劑，使得上述具有 剝離薄膜的光學用黏著片與兩張剝離薄膜的剝離層側相 接。 根據本發明，能提供一種光學用黏著劑、光學用黏著 片和帶黏著劑層的光學構件’該光學用黏著劑在黏附體上 積層偏光板等光學構件時使用，具有表面電阻率爲 5 x 1 〇 1 ^Ω/□以下程度的抗靜電性能，同時具有良好的黏附 -11- 201137068 力、再剝離性、以及耐漏光性和耐久性，且還兼具抗靜電 劑的防洩漏性（非析出性）’該光學用黏著片具備採用光學 用黏著劑而得到之剝離膜’該具備黏著劑層的光學構件係 將由上述光學用黏著劑構成的層設置於偏光板等的光學構 件上而構成。 【實施方式】 首先’對本發明的光學用黏著劑進行說明。 本發明的光學用黏著劑的特徵在於，由黏著劑形成材 料交聯而得到，該黏著劑形成材料含有：（A)具有以下所示 各成分作爲結構單元的（甲基）丙烯酸酯共聚物、（B)具有包 含反應性基團的（甲基）丙烯類單體作爲結構單元的（甲基） 丙烯酸酯共聚物、（C)活性能量線固化型化合物和（D)抗靜 電劑，且上述（A)成分和（B)成分的含有比例以質量比計爲 1 0 0 ·· 1 〜1 0 0 : 5 0 〇 [黏著劑形成材料] 在本發明的光.學用黏著劑中使用的黏著劑形成材料含 有（A)具有下述（a-Ι)成分、（a-2)成分和（a-3)成分作爲結構 單元的（甲基）丙烯酸酯共聚物、（B)具有包含反應性基團的 (甲基）丙烯酸類單體作爲結構單元的（甲基）丙烯酸酯共聚 物、（C)活性能量線固化型化合物和（D)抗靜電劑以及根據 需要使用的（E)交聯劑。另外’所謂上述（C)活性能量線固 化型化合物中的活性能量線’是指電磁波或電荷粒子束中 具有能量量子的能量線，即’是指紫外線或電子束等。 -12- 201137068 ((A)(甲基）丙烯酸酯共聚物） 該黏著劑形成材料中（A)成分的（甲基）丙烯酸酯共聚 物’具有5〜90質量％^〗）包含氧化烯基團的（甲基）丙烯酸 類單體、未達10質量％ (a-2)包含反應性基團的（甲基）丙烯 酸類單體' (a-3)(甲基）丙烯酸烷酯作爲必須結構單元。 在本發明中，（甲基）丙烯酸酯，是指丙烯酸酯和甲基 丙烯酸酯兩種。其他類似用語也是同樣的。 爲了得到下述黏結劑：使本發明的光學用黏著劑是在 黏附體上積層偏光板等光學構件時使用，具有表面電阻率 爲5χ101()Ω/□以下左右的抗靜電性能，同時具有良好的黏附 力、再剝離性、耐漏光性和耐久性，且還兼具抗靜電劑的 防洩漏性（非析出性），（Α)成分的（甲基）丙烯酸酯共聚物要 使上述U-1)成分、（a-2)成分和（a-3)成分爲必須結構單元。 該（A)成分的（甲基）丙烯酸酯共聚物較佳係重量平均 分子量爲1〇〇萬以上。如果該重量平均分子量未達100萬， 則在高溫、高濕下的黏著耐久性未達，有時容易產生鼓脹 或剝離等。如果考慮黏著耐久性等，則該重量平均分子量 更佳爲120萬〜2 20萬，特佳爲130萬〜2 00萬。此外，表示 重量平均分子量（Mw)和數量平均分子量（Μη)比例的分子 量分佈（Mw/Mn)較佳爲20以下。如果分子量分佈在20以 下，則能獲得足夠的黏著耐久性。 -13- 201137068 另外，上述重量平均分子量和數量平 凝膠滲透層析（GPC)法測定的以聚苯乙烯換 &lt;(a-l)含有氧化烯基團的（甲基）丙烯酸類單 在（A)成分的（甲基）丙烯酸酯共聚物中 單元而導入的（a-Ι)含有氧化烯基團的（甲| 成分，在濕熱條件下，不會使耐久性或再 提高抗靜電性。 通常，爲了使抗靜電劑在黏著劑中發 使抗靜電劑的電離狀態穩定。因此，被設 物中導入羥基或羧基，從而設置成能輔助 狀態。然而，爲了獲得表面電阻率爲5 X 1 0 1 抗靜電性，如果增加主劑聚合物中的羥基 的親水性過高，在濕熱條件下的耐久性惡 增加聚合物中的羧基含量，則再加工性惡 明導入（a- Γ)成分的情況下，不會產生羥基 大的問題，能使抗靜電劑的電離狀態更穩 該單體的氧化烯基團的氧原子，與抗靜電 作用，從而還能有助形成Li +等陽離子物 電離的狀態自由移動的環境。因此，作爲 官能團，與僅藉由羥基或羧基發揮抗靜電 能有效發揮其功能。 該（a-Ι)含有氧化烯基團的（甲基）丙；f 中，氧化烯基團較佳係碳原子數爲2〜4。 均分子量是藉由 丨算的値。 體&gt; ，作爲必須結構 g )丙烯酸類單體 加工性降低，能 揮其功能，必須 計成在主劑聚合 抗靜電劑的電離 M/□以下程度的 含量，則黏著劑 化。此外，如果 化。.而在如本發 或羧基的含量增 定。此外，來自 劑有輕微的共同 種在黏著劑中以 主劑聚合物中的 劑的功能相比， 希酸類單體成分 碳原子數爲2〜4 -14- 201137068 的氧化烯基團可以是直鏈狀、支鏈狀的任意一種’ 說，可以列舉氧化乙烯、氧化丙烯（支鏈狀）、氧化 基、氧化丁烯（支鏈狀）、氧化四亞甲基等。 此外，該氧化烯基團的個數爲1個以上’爲了 有上述重量平均分子量的（A)成分的（甲基）丙烯酸 物，其上限較佳爲10個左右，更佳爲5個左右’進 佳爲3個左右。另外，就氧化烯基團而言，較佳爲 化烯基團。此外，從不損害黏著劑的抗靜電性的觀觀 烷基氧化烯基團的烷基較佳係碳原子數爲1〜14。此 於同樣的觀點，特佳係碳原子數爲1〜4的烷基。針 點，從上述本發明光學用黏著劑性能的觀點來看， 含有氧化烯基團的（甲基）丙烯酸類單體而言，較佳 酸2-(甲氧基）乙酯或丙烯酸乙基卡畢醇酯。 該（a-Ι)含有氧化烯基團的（甲基）丙烯酸類單體 可以導入一種，也可以導入兩種，以上從上述本發 用黏著劑性能的觀點來看，該（甲基）丙烯酸酯共聚 含量需要爲5~90質量％，較佳爲10~50質量％，更佳怎 質量％。 &lt;(a-2)含有反應性基團的（甲基）丙烯酸類單體&gt; 在（A)成分的（甲基）丙烯酸酯共聚物中，作爲必 單元導入的（a-2)含有反應性基團的（甲基）丙烯酸類 分中的反應性基團’是使黏著劑形成材料交聯化時 交聯點的官能團’因此可以列舉經基、翔基、胺基 基等’在本發明中，較佳係羥基。 具體地 三亞甲 獲得具 酯共聚 一步較 烷基氧 ϊ來看， 外，出 對該觀 就（a-1) 係丙烯 單元， 明光學 物中的 备15〜25 須結構 單體成 的作爲 、環氧 -15- 201137068 就該（a-2)成分中含有羥基的（甲基）丙烯酸類單體的具 體例而言，可以列舉（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3-羥基丙酯、（甲基）丙烯酸 2-羥基丁酯、（甲基）丙烯酸3-羥基丁酯、（甲基）丙烯酸4-羥基丁酯等的（甲基）丙烯酸羥基烷酯等。這些物質可以單 獨使用，也可以將兩種以上組合使用，其中，從容易製造 重量平均分子量100萬以上的（A)(甲基）丙烯酸酯共聚物的 觀點來看，特佳係（甲基）丙烯酸2-羥基乙酯、（甲基）丙烯酸 4-羥基丁酯。 該（A)成分（甲基）丙烯酸酯共聚物中，（a-2)含有反應性 基團的（甲基）丙烯酸類單體的含量，從賦予所得黏著劑的 抗靜電性和在濕熱條件下的耐久性的觀點來看，需要未達 1 〇質量％，較佳爲0.1質量％以上。此外，從所得黏著劑的 再加工性的觀點來看，該含有反應性基團的（甲基）丙烯酸 類單體單元的含量特佳爲1〜5質量％。 &lt;(a-3)(甲基）丙烯酸烷酯&gt; 在（A)成分的（甲基）丙烯酸酯共聚物中，作爲以必須結 構單元而導入的（a-3)(甲基）丙烯酸烷酯成分，沒有特別的 限制，較佳係可以列舉例如酯部分的烷基的碳原子數爲 1~20的（甲基）丙烯酸酯。其中，就酯部分的烷基的碳原子 數爲1~20的（甲基）丙烯酸酯的例子而言，可以列舉（甲基） 丙烯酸甲酯、（甲基）丙烯酸乙酯、（甲基）丙烯酸丙酯、（甲 基）丙烯酸丁酯、（甲基）丙烯酸戊酯、（甲基）丙烯酸己酯、（甲 -16- 201137068 基）丙烯酸環己酯、（甲基）丙烯酸2-乙基己酯、（甲基）丙烯 酸異辛酯、（甲基）丙烯酸癸酯、（甲基）丙烯酸十二烷酯、（甲 基）丙烯酸十四烷酯、（甲基）丙烯酸十六烷酯、（甲基）丙烯 酸十八烷酯等。這些物質可以單獨使用，也可以將兩種以 上組合使用。 在這些化合物中，從可以獲得適當的黏著性能，且容 易製造重量平均分子量爲100萬以上的（甲基）丙烯酸酯共 聚物的觀點來看，特佳係（甲基）丙烯酸丁酯。另外，（A)(甲 基）丙烯酸酯共聚物中，作爲結構成分的（a-3)(甲基）丙烯酸 烷酯的含量，可以根據上述成分（a-1)和成分（a-2)的關係適 當選擇，通常爲0.1質量％以上。從提高（B)(甲基）丙烯酸 酯共聚物和（C)活性能量線固化型化合物相溶性的觀點來 看，上述含量較佳爲40〜89.9質量％，特佳爲70〜84質量％。 ((B)(甲基）丙烯酸酯共聚物） 該黏著劑形成材料中的（B)成分的（甲基）丙烯酸酯共聚 物與上述（A)成分（甲基）丙烯酸酯共聚物同樣，較佳係重量 平均分子量爲100萬以上。如果該重量平均分子量未達100 萬，則在高溫、高濕下的黏著耐久性未達，有時會產生鼓 脹或剝落等。如果考慮黏著耐久性等，則該重量平均分子 量更佳爲120萬~220萬，特佳爲130萬~200萬。此外，表 示重量平均分子量（Mw)和數量平均分子量（Μη)比例的分 子量分佈（Mw/Mn)較佳爲20以下。如果分子量分佈爲20 以下，則獲得足夠的黏合耐久性。 201137068 另外，上述重量平均分子量和數量平均分子量是藉由 凝膠滲透層析（GPC)法測定的以聚苯乙烯換算的値。 該（B)成分的（甲基）丙烯酸酯共聚物，是作爲必須結構 單元’具有包含反應性基團的（甲基）丙烯酸類單體成分（以 下’爲（b-Ι))的共聚物’就上述反應性基團而言，是使該黏 著劑形成材料交聯時作爲交聯點的官能團，因此可以列舉 羥基、羧基、胺基、環氧基等，在本發明中，較佳係羧基。 就該（B)成分中含有羧基單體的具體例而言，可以列舉 (甲基）丙烯酸、巴豆酸、馬來酸、衣康酸、檸康酸等。這 些物質可以單獨使用一種，也可以將兩種以上組合使用， 其中，從容易製造重量平均分子量爲100萬以上的（甲基） 丙烯酸酯共聚物的觀點來看，較佳係（甲基）丙烯酸。 該（B)成分的（甲基）丙烯酸酯共聚物，通常具有無反應 性基團的（甲基）丙烯酸烷酯成分（以下，爲（b-2))作爲結構 單元。 就（b-2)無反應性基團的（甲基）丙烯酸烷酯成分而言， 沒有特別的限制，較佳係可以列舉與上述（a-3)成分中使用 相同的物質，即，酯部分烷基的碳原子數爲1〜20的（甲基） 丙烯酸酯。這些物質可以單獨使用，也可以將兩種以上組 合使用。 在這些化合物中，與（a-3)成分的情況相同，從可以獲 得適當的黏著性能，且容易製造重量平均分子量爲1〇〇萬 以上的（B)成分（甲基）丙烯酸酯聚合物的觀點來看，特佳係 (甲基）丙燃酸丁酯。 -18- 201137068 該（B)成分的（甲基）丙烯酸酯共聚物中’含有羧基的單 體成分的含量較佳爲5~20質量％。如果該含量超過20質 量％，則與液晶胞的黏著強度增大，有時會損害再剝離性（再 加工性），另一方面，未達5質量％的話，高溫下的耐久性 容易降低。由該觀點來看，該含量更佳爲5〜15質量％。另 外，作爲結構成分的（b-2)成分的含量較佳爲80~95質量％， 特佳爲85〜95質量％。 在該黏著劑形成材料中，上述（A)成分的（甲基）丙烯酸 酯共聚物與（B)成分的（甲基）丙烯酸酯共聚物的含有比例， 從所得光學用黏著劑的性能的觀點來看，以質量比計需要 爲 100:1〜100:50 ，較佳爲 10:2.5〜100:30 ，更佳爲 100:5-100:20° ((C)活性能量線固化型化合物） 就該黏著劑形成材料中的（C)成分的活性能量線固化 型化合物而言’可以較佳列舉分子量未達1〇00的多官能（甲 基）丙烯酸酯類單體。 就該分子量未達1000的多官能（甲基）丙烯酸酯類單體 而言’可以列舉例如1,4-丁二醇二（甲基）丙烯酸酯、16-己二醇二（甲基）丙烯酸酯、新戊二醇二（甲基）丙烯酸酯、聚 乙二醇二（甲基）丙烯酸酯、新戊二醇己二酸二（甲基）丙烯酸 醋、經基三甲基乙酸新戊二醇二（甲基）丙烯酸酯、二環戊 基二（甲基）丙烯酸酯、己內酯改性二環戊烯基二（甲基）丙烯 酸醋、環氧乙烷改性磷酸二（甲基）丙烯酸酯、二（丙烯醯氧 -19- 201137068 基乙基）異氰脲酸酯、烯丙基化環己基二（甲基）丙烯酸酯、 二羥甲基二環戊烷二（甲基）丙烯酸酯、環氧乙烷改性氫化 鄰苯二甲酸二（甲基）丙烯酸酯、三環癸烷二甲醇（甲基）丙烯 酸酯、新戊二醇改性三羥甲基丙烷二（甲基）丙烯酸酯、金 剛烷二（甲基）丙烯酸酯、9,9-雙[4-(2-丙烯醯基氧基乙氧基） 苯基]芴等的2官能團型；三羥甲基丙烷三（甲基）丙烯酸 酯、二新戊四醇三（甲基）丙烯酸酯、丙酸改性二新戊四醇 三（甲基）丙烯酸酯、新戊四醇三（甲基）丙烯酸酯、環氧丙烷 改性三羥甲基丙烷三（甲基）丙烯酸酯、參（丙烯醯基氧基乙 基）異氰脲酸酯等的3官能團型；二甘油四（甲基）丙烯酸 酯、新戊四醇四（甲基）丙烯酸酯等的4官能團型；丙酸改 性二新戊四醇五（甲基）丙烯酸酯等的5官能團型；二新戊 四醇六（甲基）丙烯酸酯、己內酯改性二新戊四醇六（甲基） 丙烯酸酯等的6官能型等。 在本發明中，這些多官能（甲基）丙烯酸酯類單體，可 以僅單獨使用一種，也可以將兩種以上組合使用，其中， 較佳係在骨架結構中具有環狀結構的單體。環狀結構可以 是碳環結構、也可以是雜環結構，此外，可以是單環結構， 也可以是多環結構。就該多官能團（甲基）丙烯酸酯類單體 而言，較佳係例如二（丙烯醯基氧基）異氰脲酸酯、參（丙烯 醯基氧基）異氰脲酸酯等具有異氰尿素酸酯結構的物質、二 羥甲基二環戊烷二丙烯酸酯、環氧乙烷改性六氫鄰苯二甲 酸二丙烯酸酯、三環癸烷二甲醇丙烯酸酯、新戊二醇改性 三羥甲基丙烷二丙烯酸酯、金剛烷二丙烯酸酯等。 -20- 201137068 此外，作爲（c)成分，可以使用活性能量線固化 酸酯類寡聚物。就該丙烯酸酯類寡聚物的例子而言 列舉聚酯丙烯酸酯類、環氧丙烯酸酯類、聚胺基甲 烯酸酯類、聚醚丙烯酸酯類、聚丁二烯丙烯酸酯類 氧丙烯酸酯類等。 其中，就聚酯丙烯酸酯類寡聚物而言，例如， 多元酸和多元醇縮合得到的在兩末端具有羥基的聚 物的羥基，（甲基）丙烯酸酯化，或將在多元羧酸中 氧烷得到的寡聚物的末端羥基，（甲基）丙烯酸酯 到。環氧丙烯酸酯類寡聚物，例如可以將較低分子 酚型環氧樹脂或酚醛型環氧樹脂的環氧烷環與（甲； 酸反應，進行酯化而得到。此外，還可使用羧基改 氧丙烯酸酯寡聚物，其是將該環氧丙烯酸酯類寡聚 部分，用二元鹼性羧酸酐改性得到的。聚胺基甲酸 酸酯類寡聚物，例如，可以藉由將聚醚多元醇或聚 醇與聚異氰酸酯反應得到的聚胺基甲酸酯寡聚物， 丙烯酸酯化而得到，多元醇丙烯酸酯類寡聚物，可 醚多元醇的羥基用（甲基）丙烯酸酯化而得到。 上述丙烯酸酯類寡聚物的重量平均分子量以藉 法測疋的標準聚甲基丙嫌酸甲醋換算的値計， 50,000以下，更佳爲1，000〜50,000，進一步較 3,000~40,000的範圍內選擇。 型丙烯 ，可以 酸酯丙 、聚砂 可將由 酯寡聚 加成環 化而得 量的雙 塞）丙烯 性型環 物的一 酯丙烯 酯多元 (甲基） 以將聚 由 GPC 較佳爲 佳係在 -2 1- 201137068 這些丙烯酸酯類寡聚物可以單獨使用一種’也可以將 兩種以上組合使用。 在本發明中，作爲（C)成分，可使用含有（甲基）丙烯醯 基的基團被導入側鏈的加合丙烯酸類聚合物。這樣的加合 丙烯酸類聚合物採用下述共聚物，該共聚物爲上述（A)成分 的（甲基）丙烯酸酯共聚物中描述的（甲基）丙烯酸烷酯、與在 分子內具有反應性基團的交聯性官能基團的單體的共聚 物，在該共聚物的交聯性官能基團的一部分上與化合物反 應而得到該加合丙烯酸類聚合物，該化合物具有（甲基）丙 烯醯基以及與交聯性官能基團反應的基團。該加合丙烯酸 類聚合物的重量平均分子量以聚苯乙烯換算，通常爲50萬 〜200萬。 在本發明中，作爲（C)成分，可以從上述多官能團丙烯 酸酯類單體、丙烯酸酯類寡聚物和金剛烷丙烯酸酯類聚合 物中適當選擇一種使用，也可以選擇兩種以上聯用，較佳 係分子量未達1000的多官能團（甲基）丙烯酸酯類單體。 該黏著劑形成材料中的上述（C)活性能量線固化型化 合物的含量，從所得光學用黏著劑性能的觀點來看，相對 於100質量份上述（A)成分合（B)成分的總量，較佳爲1〜5〇 質量份，更佳爲2〜30質量分，進一步較佳爲4~25質量份^ ((D)抗靜電劑） 在該黏著劑形成材料中，爲了在所得光學用黏著劑中 賦予表面電阻率爲5x10 1()Ω/□以下程度的抗靜電性能，作爲 (D)成分，可以使用抗靜電劑。 -22- 201137068 就該抗靜電劑而言，沒有特別的限制，可以從目前用 於在光學用黏著劑中賦予抗靜電性能的公知的抗靜電劑中 適當選擇使用。例如可以使用包含離子性化合物的物質。 &lt;離子性化合物&gt; 就離子性化合物而言，可以列舉例如通式（1)表示的化 合物。 (Za + )m.(Ab)n ...(1) [式中’ Z 爲陽離子’ Ab爲陰離子，a、b、m和η各 自爲1〜3的整數，滿足axm=bxn的關係。當存在多個Za4 時’多個Za +可以相同，也可以不同，當存在多個Ab —時， 多個Ab_可以相同，也可以不同。] 該離子性化合物可以是固體狀或液體狀的任意一種， 此外，Za +表示的陽離子可以是無機類陽離子，也可以是有 機類陽離子。 《Za +表示的陽離子》 在通式（1)中’ Za +表示的陽離子中，就無機類陽離子而 言，可以列舉例如作爲鹼金屬陽離子的Li +、Na +和K +等， 其中，從賦予優異的抗靜電性能的觀點來看，特佳係Li + 或K+。 另一方面，就有機類陽離子而言，例如可以列舉以下 記載的陽離子。 可以列舉例如吡啶鑰類陽離子、哌啶鑰類陽離子、吡 咯啶鎗類陽離子、具有吡咯啉骨架的陽離子、具有吡咯骨 -23- 201137068 架的陽離子等。就具體例而言，可以列舉1 -乙基吡啶鑰陽 離子、1-丁基吡啶鑰陽離子、1-己基吡啶鑰陽離子、1-丁基 -3 -甲基吡啶鑰陽離子、1 - 丁基-4 -甲基吡啶鑰陽離子、1 -己 基-3 -甲基吡啶鎗陽離子、1 - 丁基-3，4 -二甲基吡啶鑰陽離 子、1-辛基·4-甲基吡啶鑰陽離子、1,1-二甲基吡咯啶鎩陽 離子、1 -乙基-1 -甲基吡咯啶鑰陽離子、1 -甲基-1 -丙基吡咯 啶鑰陽離子、2-甲基-1-吡咯啉陽離子、1-乙基-2-苯基吲哚 陽離子、1,2-二甲基吲哚陽離子、1-乙基咔唑陽離子等。 可以列舉例如咪唑鐵陽離子、四氫嘧啶鑰陽離子、二 氫嘧啶鐵陽離子等。就具體例而言，可以列舉1，3 -二甲基 咪唑鑰陽離子、1,3 -二乙基咪唑鑰陽離子、1-乙基-3-甲基 咪唑鑰陽離子、1-丁基-3-甲基咪唑鑰陽離子、1-己基-3-甲 基咪唑鑰陽離子、1-辛基-3-甲基咪唑鑰陽離子、1-癸基- 3-甲基咪唑鑰陽離子、1-十二烷基-3-甲基咪唑鏺陽離子、1-十四烷基-3-甲基咪唑鑰陽離子、1，2-二甲基-3-丙基咪唑鎰 陽離子、1-乙基-2,3-二甲基咪唑鑰陽離子、1-丁基-2,3-二 甲基咪唑鑰陽離子、1-己基- 2,3-二甲基咪唑鑰陽離子、1,3-二甲基-1，4,5,6-四氫嘧啶鑰陽離子、1，2,3-三甲基-1，4,5,6-四氫嘧啶鑰陽離子、1，2,3,4 -四甲基-1，4,5,6 -四氫嘧啶鑰陽 離子、1，2,3,5-四甲基-1,4,5,6-四氫嘧啶鑰陽離子、1，3-二 甲基-1,4-二氫嘧啶鑰陽離子、1，3-二甲基-1,6-二氫嘧啶鑰 陽離子、1,2,3-三甲基-1，4-二氫嘧啶鑰陽離子、1，2,3-三甲 基-1,6-二氫嘧啶鑰陽離子、1，2,3,4-四甲基-1,4-二氫嘧啶鑰 陽離子、1，2,3,4-四甲基-1,6-二氫嘧啶鑰陽離子等。 -24- 201137068 可以列舉例如吡唑鑰陽離子、吡唑烷鑰陽離子等。就 具體例而言，可以列舉1 -甲基吡唑鑰陽離子、3 ·甲基吡唑 銷陽離子、1-乙基-2-甲基吡唑啉鎗陽離子等。 可以列舉例如四烷基銨陽離子、三烷基鏑陽離子、四 烷基鱗陽離子、上述烷基的一部分被烯基、烷氧基以及環 氧基取代的陽離子等。就具體例而言，可以列舉四甲基銨 陽離子 '四乙基銨陽離子、四丁基銨陽離子、四己基銨陽 離子、三乙基甲基銨陽離子、三丁基乙基銨陽離子、三甲 基己基銨陽離子、三甲基癸基銨陽離子、Ν,Ν-二乙基-N-甲基-Ν-(2-甲氧基乙基）銨陽離子、縮水甘油基三甲基銨陽 離子、Ν,Ν-二甲基- Ν,Ν-二丙基銨陽離子、Ν，Ν-二甲基-Ν，Ν-二己基銨陽離子、Ν，Ν-二丙基-Ν，Ν-二己基銨陽離子、三甲 基鏑陽離子、三乙基鏑陽離子、三丁基鏑陽離子、三己基 鏑陽離子、二乙基甲基鏑陽離子、二丁基乙基锍陽離子、 二甲基癸基鏑陽離子、四甲基鐃陽離子、四乙基鱗陽離子、 四丁基鱗陽離子、四己基鳞陽離子、三乙基甲基鱗陽離子、 三丁基乙基鐵陽離子、三甲基癸基鳞陽離子、二烯丙基二 甲基鱗陽離子等。 《Ab~表示的陰離子》 另一方面，在上述通式（1)中，作爲Ab•表示的陰離子， 只要能與上述陽離子鍵結’形成離子性化合物，就沒有特 別的限制，可以列舉例如F_、ci_、Br·、I·、A1CU·、A12C17·、 BF4·、PF6-、SCN.、Cl〇4·、νο3·、ch3coo·、CF3COO·、 -25- 201137068 ch3so3' cf3so3' (cf3so2)2n、（f2so2)2n·、（cf3so2)3c、BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical adhesive, an optical adhesive sheet, and an optical member having an adhesive layer. More specifically, the present invention relates to an optical member comprising an adhesive layer, an optical adhesive sheet having a release film, and a layer comprising the optical adhesive provided on an optical member such as a polarizing plate. When the optical adhesive is used to laminate an optical member such as a polarizing plate on an adhesive body, it has 'antistatic property, good adhesion, removability (reworkability), and durability, and also has antistatic properties. Anti-leakage of the agent. [Prior Art] An optical member such as a polarizing plate, a phase difference plate, an optical compensation film, a reflection sheet, or a brightness enhancement film used in a liquid crystal display or the like is bonded to a liquid crystal cell or the like by an adhesive layer. The liquid crystal cell generally has a structure in which two transparent electrode substrates on which an alignment layer is formed are disposed such that the alignment layer is inside, a predetermined gap is formed by the spacer, the periphery thereof is sealed, the liquid crystal material is held in the gap, and The outer surfaces of the two transparent electrode substrates are respectively provided with a polarizing plate by an adhesive layer. Fig. 1 is a perspective view showing a configuration of an example of the above polarizing plate. As shown in the figure, the polarizing plate 10 generally has a three-layer structure in which triacetyl cellulose (TAC) films 2 and 2' are attached to both sides of a polyvinyl alcohol polarizing lens 1, and further, On one side, an adhesive layer 3 for attaching an optical member such as a liquid crystal cell is formed, and a release sheet 4 is attached to the adhesive layer 3. Further, a surface on the opposite side of the polarizing plate from the adhesive layer 3 is formed. In the above, a surface protective film 5 is usually provided. In the case where the liquid crystal cell is attached to the polarizing plate, the release sheet 4 is first peeled off, and the exposed adhesive layer 3 is attached to the liquid crystal cell, and then the surface protective film 5 is peeled off. When the release sheet 4 or the surface protection film 5 is peeled off, the sheets or films and the polarizing plate are made of a plastic material, so that electrical insulation is high and static electricity is generated. At this time, if the liquid crystal cells are bonded in a state in which generated static electricity remains, there is a fear that a disorder occurs in the alignment of the liquid crystal molecules. The alignment disorder of the liquid crystal molecules thus generated may not recover, and even in the case of recovery, in the manufacturing steps of the liquid crystal display, it is pointed out that the next step can be performed until recovery, and the manufacturing steps are delayed. . In addition, static electricity can cause problems such as dust or dust. In order to deal with this problem, countermeasures such as mixing an antistatic agent on a substrate of a release sheet have been proposed. However, sufficient effects cannot be obtained by this measure alone, and it is required to impart antistatic properties to the adhesive layer. As the adhesive composition having antistatic properties, an adhesive composition in which an antistatic agent such as a surfactant is mixed is known. Therefore, when an antistatic agent such as a surfactant is mixed in the adhesive composition, the antistatic property can be imparted, but the compatibility between the surfactant and the adhesive polymer is deteriorated, so when the adhesive layer is formed, At the time, or under the conditions of heat and humidity, there is a problem that the surfactant leaks, the adhesion body is contaminated, and the adhesion is lowered. -5- 201137068 In this regard, an antistatic pressure-sensitive adhesive having an organic salt having a polyoxyalkylene structure as an antistatic agent is disclosed in order to improve the compatibility of an antistatic agent and an adhesive polymer (for example, see Patent Literature) 1). However, the compatibility of the organic salt having the polyoxyalkylene structure with the acrylic polymer mainly used in the application of the polarizing plate or the like is not sufficient, and therefore, by the heat resistance test, particularly the hot and cold loop test, Organic salt may leak and cause peeling. Further, if an organic salt is used, there is a problem that odor sometimes remains. Further, an adhesive composition is disclosed which comprises a (meth)acrylic polymer containing a (meth)acrylic monomer having an alkyl group having 6 to 14 carbon atoms as a main component, and a polyether polyol. In the adhesive composition of the compound and the alkali metal salt, the (meth)acrylic polymer has an acid value of 1.0 or less, and the (meth)acrylic polymer contains less than 0.1% by weight based on 1 part by weight of the (meth)acrylic polymer. The above alkali metal salt (for example, see Patent Document 2). However, this adhesive composition uses a combination of a polyether polyol compound and an alkali metal salt as a conductive agent, and does not sufficiently satisfy the peeling electrification, adhesion, durability, and the like. In the case of an optical adhesive to which an antistatic property is imparted, it is usually required to form an adhesive layer having a surface resistivity of about 5 χ 101 () Ω / □ or less. On the other hand, in the polarizing plate as the liquid crystal display member, in particular, the polarizing plate and the liquid crystal cell obtained by integrating the viewing angle expansion film and the like are bonded together, and the polarizing plate and the phase difference plate are bonded together, and the phase difference plates are bonded to each other. In the bonding of the lamination and the phase difference plate to the liquid crystal cell, an optical adhesive sheet having an adhesive layer of "durability" and resistance ("light leakage resistance" under -6-201137068) is required (see, for example, Patent Document 3), the "durability" is such that bulging and flaking does not occur in various environments, and the resistance is resistance to light leakage caused by stress variation accompanying dimensional change such as shrinkage or expansion of the film. . However, the current state of the art is an optical adhesive which can form an adhesive layer having an excellent surface resistivity of 5x1 01 () Ω / □ or less and which has sufficient durability and light leakage resistance. Find. In the prior art related to the present invention, for example, a (meth)acrylic polymer having a reactive monomer having an oxyalkylene group as a monomer component and an adhesive composition containing an alkali metal salt are disclosed (for example, see Patent Document 4) or an adhesive composition containing a lithium salt in two polymers having different glass transition temperatures (for example, see Patent Document 5). In order to exhibit antistatic properties in any of the adhesive compositions, a monomer constituting the polymer is often a composition using a hydrophilic monomer. Therefore, in the case of finally peeling off the discarded surface protective film, it is considered that the adhesive layer formed by the above-described adhesive composition has sufficient performance, but as in the present invention, when a part of the structure of the liquid crystal display is formed, It is fully assumed that there is a problem in durability and light leakage resistance. Patent Document 6 discloses a patent document 6 which discloses an acrylic copolymer containing a monomer containing a hydroxyl group, an acrylic copolymer copolymerized with acrylic acid, and the like. Adhesive composition containing various antistatic agents in an adhesive composition of a polyfunctional acrylate monomer. Patent Document 1 Patent Document 1 Japanese Patent Publication No. 20〇4·53694 No. Patent Document 2 Japanese Patent Co., Ltd. Japanese Patent Laid-Open No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. 2008-248223. [Patent Document] The adhesive layer formed by the adhesive composition disclosed in the above Patent Document 6 has durability and light leakage resistance, and has a certain antistatic property. In the adhesive composition of the literature, the addition of various antistatic agents is studied, but it cannot be used on the basis of sufficient durability and light leakage resistance. Surface resistivity of 5χ101 () is excellent in Ω / □ or less degrees of antistatic properties. The present invention has been made in view of such circumstances, and an object of the invention is to provide an optical adhesive, an optical adhesive sheet having a release film using the same, and an optical member having an adhesive layer on the adhesive. It is used when an optical member such as a polarizing plate is laminated, and has an antistatic property of a surface resistivity of 5 χ 1 01 () Ω / □ or less, and has good adhesion, re-peelability, light leakage resistance, and durability, and also has both Anti-leakage property of the antistatic agent (non-precipitating property) -8 - 201137068 The present inventors conducted a number of intensive studies in order to achieve the above object, and as a result, found that the adhesive can be achieved according to the following adhesive agent, which is The adhesive forming material is obtained by crosslinking: (a) a (meth)propionic acid ester copolymer having the following three structural units: a specific amount of an oxyalkylene group (A) Acrylic monomer, a specific amount of a (meth)acrylic monomer containing a reactive group, and a (meth)acrylic acid ester; (B) having a reactive group a (meth) acrylate copolymer having an acrylic monomer as a structural unit; (c) an active energy ray-curable compound; and (D) an antistatic agent, and the content ratios of the above components (A) and (B) are Within a specific range. The present invention has been completed based on this finding. That is, the present invention provides the following: [1] An optical adhesive characterized by being crosslinked by an adhesive forming material comprising: (A) a (meth) acrylate copolymer, The following three are used as structural units: 5 to 90% by mass (ai) (meth)acrylic monomer containing an oxyalkylene group, less than 10% by mass (a_2) (meth) containing a reactive group An acrylic monomer, (a-3) alkyl (meth)acrylate; (B) a (meth) acrylate copolymer having a (meth)acrylic monomer containing a reactive group as a structural unit; C) an active energy ray-curable compound and (D) an antistatic agent, and the content ratio of the component (A) and the component (B) is 100:1 to 100:50 by mass ratio, [2] as described above [1] The optical adhesive according to the above aspect, wherein the content of the (C) active energy ray-curable compound is from 1 to 50 parts by mass based on 100 parts by mass of the total of (A) component and (B) component, -9-201137068 [3] The optical adhesive according to the above [1] or [2] wherein (()) contains an oxyalkylene group (A) In the acrylic monomer, the number of carbon atoms of the oxyalkylene group is 2 to 4, and the number of the oxyalkylene groups is [4] as described in any one of the above [1] to [3]. The adhesive (a-2) (meth)acrylic monomer containing a reactive group is a (meth)acrylic monomer containing a hydroxyl group, [5] as described in [1] to [4] above. The optical adhesive according to the above aspect, wherein the (meth)acrylic monomer containing a reactive group as a structural unit of the component (B) is a (meth)acrylic monomer containing a carboxyl group, [6 The optical adhesive according to any one of the above [1] to [5], wherein (D) is antistatic with respect to 100 parts by mass of the total of (A) component and (B) component and (C) component. The optical adhesive according to any one of the above [1], wherein the adhesive forming material further contains (E) a crosslinking agent, [8] An optical adhesive sheet having a release film, which is formed by the optical adhesive according to any one of the above [1] to [7], [9] an optical member having an adhesive layer, wherein In the light The optical member having the adhesive layer as described in the above [9], wherein the optical member is the optical member. It is a polarizing plate. Further, in a preferred embodiment of the present invention, (a) an optical adhesive, wherein the (C) active energy ray-curable compound is a polyfunctional (meth) acrylate monomer, - 10-201137068 (b) An optical adhesive agent, wherein the (D) antistatic agent contains a solid or liquid ionic compound represented by the general formula (1), (Za + ) m (Ab-) „...(1) [In the formula, [Za+ is a cation] Ab- is an anion, and each of a, b, m and η is an integer of 1 to 3, which satisfies the relationship of axm=bxn. When there are a plurality of za+, a plurality of Za + may be the same 'may be different, when there are a plurality of Ab·, a plurality of Ab_ may be the same or different), (c) an optical adhesive, wherein the above-mentioned adhesive forming material further contains a decane coupling agent, (d) an optical adhesive' wherein the (E) crosslinking agent is an isocyanate crosslinking agent, (e) an optical adhesive 'where the above (a-) contains an oxyalkylene group The (meth)acrylic monomer is 2-(methoxy)ethyl acrylate or ethyl carbitol acetate, (f An optical adhesive in which crosslinking of the above-mentioned adhesive forming material is performed by heat treatment and active energy ray irradiation treatment, (g) an adhesive sheet holding an optical adhesive so that the above-mentioned release film is provided The optical adhesive sheet is in contact with the peeling layer side of the two release films. According to the present invention, an optical adhesive, an optical adhesive sheet, and an optical member with an adhesive layer can be provided. The optical adhesive is in the adhesive body. It is used when an optical member such as a polarizing plate is laminated, and has an antistatic property of a surface resistivity of 5 x 1 〇 1 ^ Ω / □ or less, and has good adhesion -11 - 201137068 force, removability, and light leakage resistance. And durability, and also have anti-leakage property (non-precipitating property) of the antistatic agent. The optical adhesive sheet has a release film obtained by using an optical adhesive. The optical member having the adhesive layer is made of the above optical The layer made of an adhesive is provided on an optical member such as a polarizing plate. [Embodiment] First, the optical adhesive of the present invention will be described. The optical adhesive of the present invention is obtained by crosslinking an adhesive forming material containing (A) a (meth) acrylate copolymer having each component shown below as a structural unit, ( B) a (meth) acrylate copolymer having a (meth) propylene monomer containing a reactive group as a structural unit, (C) an active energy ray-curable compound, and (D) an antistatic agent, and the above ( The content ratio of the component A) and the component (B) is 1 0 0 ·· 1 1 to 1 0 0 : 5 0 〇 [adhesive forming material] Adhesive used in the optical adhesive for use in the present invention The agent-forming material contains (A) a (meth) acrylate copolymer having the following (a-Ι) component, (a-2) component, and (a-3) component as a structural unit, and (B) having reactivity. a (meth)acrylic monomer as a structural unit (meth)acrylate copolymer, (C) an active energy ray-curable compound, and (D) an antistatic agent, and (E) cross-linking used as needed Agent. Further, the "active energy ray" in the above (C) active energy ray-curable compound means an energy ray having an energy quantum in an electromagnetic wave or a charged particle beam, that is, 'is an ultraviolet ray or an electron beam. -12-201137068 ((A) (meth) acrylate copolymer) The (meth) acrylate copolymer of the component (A) in the adhesive forming material has 5 to 90% by mass. (meth)acrylic monomer, less than 10% by mass (a-2) (meth)acrylic monomer (a-3) alkyl (meth)acrylate containing a reactive group as a necessity Structural units. In the present invention, (meth) acrylate means both acrylate and methacrylate. Other similar terms are the same. In order to obtain the following adhesive, the optical adhesive of the present invention is used when an optical member such as a polarizing plate is laminated on the adherend, and has an antistatic property with a surface resistivity of about 5 χ 101 () Ω / □ or less and good at the same time. Adhesion, re-peelability, light leakage resistance and durability, and also have anti-leakage (non-precipitating) of the antistatic agent, and the (meth) acrylate copolymer of the (Α) component is required to make the above U- 1) The component, the component (a-2) and the component (a-3) are essential structural units. The (meth) acrylate copolymer of the component (A) preferably has a weight average molecular weight of 10,000 or more. If the weight average molecular weight is less than 1,000,000, the adhesive durability under high temperature and high humidity is not reached, and bulging or peeling may easily occur. If the adhesion durability or the like is considered, the weight average molecular weight is more preferably 1.2 million to 220,000, and particularly preferably 1.3 million to 2,000,000. Further, the molecular weight distribution (Mw/Mn) indicating the ratio of the weight average molecular weight (Mw) and the number average molecular weight (?η) is preferably 20 or less. If the molecular weight distribution is below 20, sufficient adhesive durability can be obtained. -13- 201137068 In addition, the above weight average molecular weight and the number of flat gel permeation chromatography (GPC) methods were measured by polystyrene &lt;(al) (a) an oxyalkylene group-containing (meth)acrylic acid group (a-Ι) containing an oxyalkylene group introduced in a (meth) acrylate copolymer of the component (A) The composition does not improve the durability or the antistatic property under moist heat conditions. Generally, in order to stabilize the ionization state of the antistatic agent in the adhesive, the hydroxyl group is introduced into the package. The carboxyl group is set to be in an auxiliary state. However, in order to obtain a surface resistivity of 5 X 1 0 1 antistatic property, if the hydrophilicity of the hydroxyl group in the main agent polymer is increased too high, the durability under moist heat conditions is increased. When the carboxyl group content in the polymer is introduced into the (a-ruthenium) component by reworkability, the problem of large hydroxyl group is not generated, and the ionization state of the antistatic agent can be made more stable. The oxygen atom and the antistatic action can also help to form an environment in which the cation such as Li + ionizes to move freely. Therefore, as a functional group, it functions effectively by exerting antistatic energy only by a hydroxyl group or a carboxyl group. (a- The (meth) propyl group containing an oxyalkylene group; wherein the oxyalkylene group is preferably a carbon number of 2 to 4. The average molecular weight is a ruthenium calculated by the ruthenium as a necessary structure g) When the acrylic monomer has a low processability and can be used for its function, it must be counted as a content of the ionization M/□ of the main polymerization antistatic agent, and the adhesive is formed. In addition, if it is. In addition, the content of the present invention or the carboxyl group increases. In addition, the oxyalkylene group having a carbon atom number of 2 to 4 -14 to 201137068 may be straight compared to the function of the agent in the main agent polymer which is slightly co-specified in the adhesive. Any of a chain shape and a branched shape may be exemplified by ethylene oxide, propylene oxide (branched), an oxidized group, butylene oxide (branched), or tetramethylene oxide. In addition, the number of the oxyalkylene groups is one or more. The upper limit of the (meth)acrylic acid having the weight average molecular weight of the component (A) is preferably about 10, and more preferably about five. Jinjia is about 3 or so. Further, in the case of the oxyalkylene group, an alkenyl group is preferred. Further, the alkyl group of the alkyl oxyalkylene group which does not impair the antistatic property of the adhesive preferably has a carbon number of from 1 to 14. From the same viewpoint, an alkyl group having 1 to 4 carbon atoms is particularly preferred. Needle point, from the viewpoint of the performance of the optical adhesive of the present invention described above, the (meth)acrylic monomer having an oxyalkylene group is preferably 2-(methoxy)ethyl or ethyl acrylate. Carbopol ester. The (meth)acrylic monomer having an (a-fluorene) group containing an oxyalkylene group may be introduced one kind or two kinds, and the (meth)acrylic acid may be used from the viewpoint of the performance of the above-mentioned adhesive for the present invention. The ester copolymerization content is required to be 5 to 90% by mass, preferably 10 to 50% by mass, more preferably 2% by mass. &lt;(a-2) (meth)acrylic monomer containing a reactive group&gt; (a-2) which is introduced as a necessary unit in the (meth) acrylate copolymer of the component (A) The reactive group in the (meth)acrylic group of the reactive group is a functional group at the crosslinking point when the adhesive forming material is crosslinked, and thus may be exemplified by a radical, a sulfhydryl group, an amine group or the like. In the present invention, a hydroxyl group is preferred. Specifically, in view of the fact that the trimethylene is obtained by ester copolymerization, the step of the (a-1) propylene unit, the preparation of the 15 to 25 structural monomer in the bright optical material, Epoxy-15-201137068 Specific examples of the (meth)acrylic monomer having a hydroxyl group in the component (a-2) include 2-hydroxyethyl (meth)acrylate and (meth)acrylic acid. 2-hydroxypropyl ester, 3-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 3-hydroxybutyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, etc. A hydroxyalkyl (meth) acrylate or the like. These may be used singly or in combination of two or more kinds, and from the viewpoint of easily producing a (A) (meth) acrylate copolymer having a weight average molecular weight of 1,000,000 or more, a particularly good (meth) group 2-hydroxyethyl acrylate, 4-hydroxybutyl (meth) acrylate. In the (A) component (meth) acrylate copolymer, (a-2) the content of the reactive group-containing (meth)acrylic monomer, the antistatic property imparted to the obtained adhesive, and the moist heat condition From the viewpoint of durability, it is required to be less than 1% by mass, preferably 0.1% by mass or more. Further, the content of the reactive group-containing (meth)acrylic monomer unit is particularly preferably from 1 to 5% by mass from the viewpoint of reworkability of the obtained adhesive. &lt;(a-3) (meth)acrylic acid alkyl ester> (a-3) (meth)acrylic acid which is introduced as an essential structural unit in the (meth) acrylate copolymer of the component (A) The alkyl ester component is not particularly limited, and examples thereof include a (meth) acrylate having an alkyl group having an ester moiety of 1 to 20 carbon atoms. In the above, examples of the (meth) acrylate having an alkyl group having 1 to 20 carbon atoms in the ester moiety include methyl (meth)acrylate, ethyl (meth)acrylate, and (methyl). Propyl acrylate, butyl (meth)acrylate, amyl (meth)acrylate, hexyl (meth)acrylate, cyclohexyl (meth)-16-1637070, 2-ethyl (meth)acrylate Hexyl ester, isooctyl (meth)acrylate, decyl (meth)acrylate, dodecyl (meth)acrylate, tetradecyl (meth)acrylate, cetyl (meth)acrylate, Octadecyl (meth)acrylate, and the like. These may be used singly or in combination of two or more. Among these compounds, butyl (meth)acrylate is particularly preferred from the viewpoint of obtaining a suitable adhesive property and easily producing a (meth) acrylate copolymer having a weight average molecular weight of 1,000,000 or more. Further, in the (A) (meth) acrylate copolymer, the content of the (a-3) alkyl (meth) acrylate as a structural component may be based on the above component (a-1) and component (a-2). The relationship is appropriately selected, and is usually 0.1% by mass or more. The content is preferably 40 to 89.9 mass%, particularly preferably 70 to 84 mass%, from the viewpoint of improving the compatibility of the (B) (meth) acrylate copolymer and the (C) active energy ray-curable compound. ((B) (meth) acrylate copolymer) The (meth) acrylate copolymer of the component (B) in the adhesive forming material is the same as the above (A) component (meth) acrylate copolymer, The weight average molecular weight of the best system is more than 1 million. If the weight average molecular weight is less than 1,000,000, the adhesion durability under high temperature and high humidity is not reached, and swelling or peeling may occur. If the adhesion durability is considered, the weight average molecular weight is preferably 1.2 million to 2.2 million, and particularly preferably 1.3 million to 2 million. Further, the molecular weight distribution (Mw/Mn) indicating the ratio of the weight average molecular weight (Mw) and the number average molecular weight (?η) is preferably 20 or less. If the molecular weight distribution is 20 or less, sufficient adhesive durability is obtained. Further, the above weight average molecular weight and number average molecular weight are polystyrene-converted oximes measured by a gel permeation chromatography (GPC) method. The (meth) acrylate copolymer of the component (B) is a copolymer having a (meth)acrylic monomer component (hereinafter referred to as 'b-fluorene) having a reactive group as an essential structural unit. The above-mentioned reactive group is a functional group which serves as a crosslinking point when the adhesive forming material is crosslinked, and examples thereof include a hydroxyl group, a carboxyl group, an amine group, and an epoxy group. In the present invention, preferred is preferred. carboxyl. Specific examples of the carboxyl group-containing monomer in the component (B) include (meth)acrylic acid, crotonic acid, maleic acid, itaconic acid, and citraconic acid. These may be used alone or in combination of two or more. Among them, from the viewpoint of easily producing a (meth) acrylate copolymer having a weight average molecular weight of 1,000,000 or more, a (meth)acrylic acid is preferred. . The (meth) acrylate copolymer of the component (B) usually has a (meth)acrylic acid alkyl ester component (hereinafter referred to as (b-2)) having no reactive group as a structural unit. The (b-2) non-reactive group-containing (meth)acrylic acid alkyl ester component is not particularly limited, and preferably, the same ones as those used in the above (a-3) component, that is, esters, may be mentioned. A (meth) acrylate having a partial alkyl group having 1 to 20 carbon atoms. These may be used singly or in combination of two or more. Among these compounds, as in the case of the component (a-3), it is easy to produce a (meth) acrylate polymer of the component (B) having a weight average molecular weight of 1,000,000 or more from the viewpoint of obtaining an appropriate adhesive property. From the point of view, it is a good (meth) propionate butyl acrylate. -18-201137068 The content of the monomer component containing a carboxyl group in the (meth) acrylate copolymer of the component (B) is preferably 5 to 20% by mass. When the content is more than 20% by mass, the adhesion strength to the liquid crystal cell is increased, and the removability (reworkability) may be impaired. On the other hand, if the content is less than 5% by mass, the durability at a high temperature is liable to lower. From this viewpoint, the content is more preferably from 5 to 15% by mass. Further, the content of the component (b-2) as a structural component is preferably from 80 to 95% by mass, particularly preferably from 85 to 95% by mass. In the adhesive forming material, the content ratio of the (meth) acrylate copolymer of the component (A) to the (meth) acrylate copolymer of the component (B) is from the viewpoint of the performance of the obtained optical adhesive. In view of the mass ratio, it is required to be 100:1 to 100:50, preferably 10:2.5 to 100:30, more preferably 100:5 to 100:20 ((C) active energy ray-curable compound) In the active energy ray-curable compound of the component (C) in the adhesive forming material, a polyfunctional (meth) acrylate monomer having a molecular weight of less than 1,000 Å can be preferably exemplified. For the polyfunctional (meth) acrylate monomer having a molecular weight of less than 1,000, for example, 1,4-butanediol di(meth)acrylate or 16-hexanediol di(meth)acrylic acid can be cited. Ester, neopentyl glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, neopentyl glycol adipate di(meth)acrylate vinegar, transmethyltrimethylacetate neopentyl Alcohol di(meth)acrylate, dicyclopentyl di(meth)acrylate, caprolactone modified dicyclopentenyl di(meth)acrylate vinegar, ethylene oxide modified di(methyl) Acrylate, bis(propylene oxyhydroxide-19- 201137068 ethylidene) isocyanurate, allylated cyclohexyl di(meth) acrylate, dimethylol dicyclopentane di(methyl) Acrylate, ethylene oxide modified hydrogenated di(meth) acrylate, tricyclodecane dimethanol (meth) acrylate, neopentyl glycol modified trimethylolpropane di (methyl) 2 officials of acrylate, adamantane di(meth)acrylate, 9,9-bis[4-(2-propenylmethoxyethoxy)phenyl]anthracene Energy group type; trimethylolpropane tri(meth)acrylate, dipentaerythritol tri(meth)acrylate, propionic acid modified dipentaerythritol tri(meth)acrylate, neopenta a trifunctional group such as an alcohol tri(meth)acrylate, a propylene oxide-modified trimethylolpropane tri(meth)acrylate or a ginseng (acryloyloxyethyl)isocyanurate; a tetrafunctional group such as tetrakis(meth)acrylate or neopentyltetrakis(meth)acrylate; a 5-functional group such as propionic acid-modified dipentaerythritol penta(meth)acrylate; A tetrafunctional type such as tetraol hexa(meth) acrylate or caprolactone-modified dipentaerythritol hexa(meth) acrylate. In the present invention, these polyfunctional (meth) acrylate monomers may be used alone or in combination of two or more. Among them, those having a cyclic structure in the skeleton structure are preferred. The cyclic structure may be a carbocyclic structure or a heterocyclic structure, and may be a single ring structure or a polycyclic structure. In the case of the polyfunctional (meth) acrylate type monomer, for example, bis(propylene decyloxy) isocyanurate or ginseng (propylene decyloxy) isocyanurate is preferable. The material of cyanurate structure, dimethylol dicyclopentane diacrylate, ethylene oxide modified hexahydrophthalic acid diacrylate, tricyclodecane dimethanol acrylate, neopentyl glycol Sexual trimethylolpropane diacrylate, adamantane diacrylate, and the like. -20- 201137068 Further, as the component (c), an active energy ray-curable acid ester oligomer can be used. Examples of the acrylate oligomer include polyester acrylates, epoxy acrylates, polyamino methacrylates, polyether acrylates, polybutadiene acrylate oxy acrylates. Classes, etc. Wherein, in the case of a polyester acrylate oligomer, for example, a hydroxyl group of a polymer having a hydroxyl group at both terminals obtained by condensation of a polybasic acid and a polyhydric alcohol, (meth) acrylated, or will be in a polycarboxylic acid The terminal hydroxyl group of the oligomer obtained by oxyalkyl, (meth) acrylate. The epoxy acrylate oligomer can be obtained, for example, by reacting an alkylene oxide ring of a lower molecular phenol type epoxy resin or a novolac type epoxy resin with (a; acid; esterification. Further, a carboxyl group can also be used. An oxyacrylate oligomer obtained by modifying the epoxy acrylate oligomeric moiety with a dibasic basic carboxylic acid anhydride. For example, the urethane oligomer can be A polyurethane polyol or a polyurethane oligomer obtained by reacting a polyhydric acid with a polyisocyanate, obtained by acylation, a polyol acrylate oligomer, and a hydroxyl group of an ether polyol using (meth)acrylic acid The weight average molecular weight of the above acrylate oligomer is 50,000 or less, more preferably 1,000 to 50,000, based on the standard polymethyl methacrylate Between 3,000 and 40,000. The type of propylene, which can be esterified with propane, can be obtained by cyclization of the ester oligomer, and the amount of the monoester) propylene-type cyclic monoester propylene ester poly(methyl) It is better to use GPC for better -2 1- 201137068 These acrylate-based oligomers may be used singly or in combination of two or more. In the present invention, as the component (C), an addition acrylic polymer to which a group containing a (meth)acryl fluorenyl group is introduced into a side chain can be used. Such an additive acrylic polymer employs a copolymer which is an alkyl (meth)acrylate described in the (meth) acrylate copolymer of the above component (A) and which is reactive in the molecule. a copolymer of a monomer of a crosslinkable functional group of a group, which is reacted with a compound on a part of a crosslinkable functional group of the copolymer to obtain the added acrylic polymer, the compound having (meth) An acrylonitrile group and a group reactive with a crosslinkable functional group. The weight average molecular weight of the addition acrylic polymer is usually from 500,000 to 2,000,000 in terms of polystyrene. In the present invention, as the component (C), one of the above-mentioned polyfunctional acrylate monomer, acrylate oligomer, and adamantyl acrylate polymer may be appropriately selected, or two or more types may be used in combination. Preferred are polyfunctional (meth) acrylate monomers having a molecular weight of less than 1,000. The content of the (C) active energy ray-curable compound in the adhesive forming material is from the viewpoint of the performance of the obtained optical adhesive, relative to 100 parts by mass of the total (B) component (B). Preferably, it is 1 to 5 parts by mass, more preferably 2 to 30 parts by mass, still more preferably 4 to 25 parts by mass ((D) antistatic agent), in the adhesive forming material, in order to obtain the optical The antistatic property is imparted to the surface resistivity of 5x10 1 () Ω / □ or less by the adhesive, and as the component (D), an antistatic agent can be used. -22-201137068 The antistatic agent is not particularly limited, and can be appropriately selected from known antistatic agents which are currently used for imparting antistatic properties to optical adhesives. For example, a substance containing an ionic compound can be used. &lt;Ionic compound&gt; The ionic compound may, for example, be a compound represented by the formula (1). (Za + ) m. (Ab) n (1) [wherein Z is a cation] Ab is an anion, and a, b, m and η are each an integer of 1 to 3, satisfying the relationship of axm = bxn. When there are a plurality of Za4, the plurality of Za+s may be the same or different, and when there are a plurality of Abs, the plurality of Ab_s may be the same or different. The ionic compound may be either solid or liquid. Further, the cation represented by Za + may be an inorganic cation or an organic cation. In the cation represented by 'Z + in the formula (1), examples of the inorganic cation include Li +, Na + and K + as an alkali metal cation, among them, From the viewpoint of imparting excellent antistatic properties, it is particularly preferred to be Li + or K+. On the other hand, examples of the organic cation include the following cations. For example, a pyridyl cation, a piperidine cation, a pyrrolidine gun cation, a cation having a pyrroline skeleton, a cation having a pyrrole -23-201137068, or the like can be given. Specific examples thereof include 1-ethylpyridine cation, 1-butylpyridyl cation, 1-hexyl pyridyl cation, 1-butyl-3-methylpyridine cation, and 1-butyl-4. -methylpyridine cation, 1-hexyl-3-methylpyridine gun cation, 1-butyl-3,4-dimethylpyridine cation, 1-octyl-4-methylpyridine cation, 1, 1-dimethylpyrrolidinium cation, 1-ethyl-1-methylpyrrolidine cation, 1-methyl-1-propylpyrrolidine cation, 2-methyl-1-pyrroline cation, 1 Ethyl-2-phenylphosphonium cation, 1,2-dimethylhydrazine cation, 1-ethylcarbazole cation, and the like. For example, an imidazole iron cation, a tetrahydropyrimidinium cation, a dihydropyrimidine cation or the like can be mentioned. Specific examples include 1,3 -dimethylimidazolium cation, 1,3 -diethylimidazolium cation, 1-ethyl-3-methylimidazolium cation, 1-butyl-3- Methyl imidazolium cation, 1-hexyl-3-methylimidazolium cation, 1-octyl-3-methylimidazolium cation, 1-mercapto-3-methylimidazolium cation, 1-dodecyl 3-methylimidazolium cation, 1-tetradecyl-3-methylimidazolium cation, 1,2-dimethyl-3-propylimidazolium cation, 1-ethyl-2,3-di Methyl imidazolium cation, 1-butyl-2,3-dimethylimidazolium cation, 1-hexyl-2,3-dimethylimidazolium cation, 1,3-dimethyl-1,4,5 ,6-tetrahydropyrimidine cation, 1,2,3-trimethyl-1,4,5,6-tetrahydropyrimidine cation, 1,2,3,4-tetramethyl-1,4,5 ,6-tetrahydropyrimidine cation, 1,2,3,5-tetramethyl-1,4,5,6-tetrahydropyrimidine cation, 1,3-dimethyl-1,4-dihydropyrimidine Key cation, 1,3-dimethyl-1,6-dihydropyrimidine cation, 1,2,3-trimethyl-1,4-dihydropyrimidine cation, 1,2,3-trimethyl -1,6-dihydropyrimidine cation, 1,2,3,4-tetramethyl- 1,4-Dihydropyrimidine cation, 1,2,3,4-tetramethyl-1,6-dihydropyrimidine cation, and the like. -24-201137068 For example, a pyrazole cation, a pyrazolidine cation, or the like can be cited. Specific examples thereof include a 1-methylpyrazole cation, a 3-methylpyrazole cation, a 1-ethyl-2-methylpyrazol gun cation, and the like. For example, a tetraalkylammonium cation, a trialkylsulfonium cation, a tetraalkylsulfonium cation, a cation in which a part of the above alkyl group is substituted with an alkenyl group, an alkoxy group, and an epoxy group may, for example, be mentioned. Specific examples thereof include a tetramethylammonium cation 'tetraethylammonium cation, a tetrabutylammonium cation, a tetrahexylammonium cation, a triethylmethylammonium cation, a tributylethylammonium cation, and a trimethyl group. Hexyl ammonium cation, trimethyl decyl ammonium cation, hydrazine, hydrazine-diethyl-N-methyl-hydrazine-(2-methoxyethyl) ammonium cation, glycidyl trimethyl ammonium cation, hydrazine, Ν-dimethyl-hydrazine, hydrazine-dipropylammonium cation, hydrazine, hydrazine-dimethyl-hydrazine, hydrazine-dihexyl ammonium cation, hydrazine, hydrazine-dipropyl-hydrazine, hydrazine-dihexyl ammonium cation, Trimethyl phosphonium cation, triethyl phosphonium cation, tributyl phosphonium cation, trihexyl phosphonium cation, diethyl methyl phosphonium cation, dibutyl ethyl phosphonium cation, dimethyl fluorenyl cation, tetramethyl Ruthenium cation, tetraethyl sulfonium cation, tetrabutyl quaternary cation, tetrahexyl quaternary cation, triethylmethyl quaternary cation, tributyl ethyl iron cation, trimethyl decyl cation, diallyl dimethyl Base cations and the like. In the above-mentioned general formula (1), the anion represented by Ab• is not particularly limited as long as it can form an ionic compound with the above cation, and for example, F_ , ci_, Br·, I·, A1CU·, A12C17·, BF4·, PF6-, SCN., Cl〇4·, νο3·, ch3coo·, CF3COO·, -25- 201137068 ch3so3' cf3so3' (cf3so2)2n , (f2so2) 2n·, (cf3so2) 3c,

AsF6-、SbF6.、NbF6.、TaF6·、F(HF)n-、（CN)2N·、C4F9S03· ' (c2f5so2)2n、C3F7COO·、（cf3so2)(cf3co)n·等。其中， 含氟原子的陰離子由於能得到低熔點的離子性化合物，因 此是較佳的，特佳係（f2so2)2n·或（cf3so2)2n·。 在上述za +表示的陽離子是Li+的情況下，就離子性化 合物而言，可以列舉例如LiBr、Lil、LiBF4、LiPF6、LiSCN、 LiC104 、 LiCF3S03 、 Li(CF3S02)2N 、 Li(F2S02)2N 、AsF6-, SbF6., NbF6., TaF6·, F(HF)n-, (CN)2N·, C4F9S03· '(c2f5so2)2n, C3F7COO·, (cf3so2)(cf3co)n·etc. Among them, an anion having a fluorine atom is preferred because it can obtain an ionic compound having a low melting point, and is particularly preferably (f2so2)2n· or (cf3so2)2n·. In the case where the cation represented by the above za + is Li+, examples of the ionic compound include LiBr, Lil, LiBF4, LiPF6, LiSCN, LiC104, LiCF3S03, Li(CF3S02)2N, Li(F2S02)2N,

Li(CF3S02)3C’以及辛基苯磺酸鋰、十二烷基苯磺酸鋰、 二丁基萘磺酸鋰等化合物，其中，特佳係Li(CF3S02)2N [雙 (三氟甲院磺醯基）醯亞胺鋰]' Li(CF3S02)2C[參（三氟甲烷 磺醯基）甲烷鋰]’或Li(F2S02)2N[雙（二氟磺醯基）醯亞胺 鋰]。 此外，在Za +表示的陽離子是K+的情況下，就離子性 化合物而言’較佳係K(F2S〇2)2N[雙（二氟磺醯基）醯亞胺鉀] 或K(CF3S〇2)2N[雙（三氟甲烷磺醯基）醯亞胺鉀]。 此外，在za +表示的陽離子是吡啶鑰類陽離子的情況 下’就離子性化合物而言’較佳係1-乙基吡淀鑰六氟磷酸 鹽、1-丁基卩比卩定鑰六氟磷酸鹽、1-己基-4-甲基六氟憐酸鹽、 1-辛基-4-甲基六氟磷酸鹽等。 上述通式（1)表示的離子性化合物可以單獨使用一 種，也可以將兩種以上組合使用。 -26- 201137068 此外，還可以較佳列舉含有反應性四級銨鹽的化合物 作爲滿足通式（1)的例子。 &lt;含有反應性四級銨鹽的化合物&gt; 就含有反應性四級銨鹽的化合物而言 (2)表示的化合物等。Li(CF3S02)3C' and compounds such as lithium octylbenzenesulfonate, lithium dodecylbenzenesulfonate and lithium dibutylnaphthalenesulfonate, among them, Li(CF3S02)2N [double (trifluoro) Lithosulfonyl) quinone imine lithium] 'Li(CF3S02)2C [parameter (trifluoromethanesulfonyl) methane lithium]' or Li(F2S02)2N [lithium bis(difluorosulfonyl) ruthenium]. Further, in the case where the cation represented by Za + is K+, in the case of an ionic compound, it is preferably K(F2S〇2)2N [potassium bis(difluorosulfonyl) phthalimide] or K (CF3S〇). 2) 2N [bis(trifluoromethanesulfonyl) quinone imide potassium]. Further, in the case where the cation represented by za + is a pyridyl cation, 'in terms of an ionic compound, it is preferred to be 1-ethylpyridyl hexafluorophosphate, 1-butyl fluorene, and hexafluoride. Phosphate, 1-hexyl-4-methylhexafluorodihydrochloride, 1-octyl-4-methylhexafluorophosphate, and the like. The ionic compound represented by the above formula (1) may be used singly or in combination of two or more. Further, a compound containing a reactive quaternary ammonium salt can be preferably exemplified as an example satisfying the general formula (1). &lt;Compound containing a reactive quaternary ammonium salt&gt; A compound represented by (2), a compound containing a reactive quaternary ammonium salt.

R CH, I 1 + ch2=c—cooch2ch2—n —ch3- cr CHo 可以列舉通式…(2) (式中，R表示氫原子或甲基。） 在本發明中，該含有四級銨鹽的單體可以使用一種， 也可以將兩種以上組合使用，還可以與上述離子性化合物 倂用。 在該黏著劑形成材料中，藉由含有含四級銨鹽的單 體，從而在照射活性能量線進行交聯時，該材料中存在的 活性能量線固化型化合物與上述含有四級銨鹽的單體共 聚’從而在所得光學用黏著劑中導入四級銨鹽，賦予抗靜 電性能。 該黏著劑形成材料中（D)成分的抗靜電劑的含量，根據 抗靜電劑的種類有所不同，從在所得光學用黏著劑中賦予 表面電阻率爲5x10 1()Ω/□以下程度的抗靜電性能，以及該抗 靜電劑的防洩漏性和防析出性的觀點來看，相對於總計1 〇 〇 質量分的上述（Α)成分' (Β)成分和（C)成分，通常爲0.1〜10 質量份左右’較佳爲0.5〜5質量份，更佳爲0.5〜3質量份。 -27- 201137068 在該黏著劑形成材料中’作爲任意的材料，根據需要， 還可以含有（E)父聯劑、砂院偶合劑、光聚合引發劑、以及 各種添加劑、例如抗氧化劑、紫外線吸收劑、光穩定劑、 均塗劑、消泡劑等。 ((E)交聯劑） 在該黏著劑材料中，根據需要，可以含有交聯劑作爲 (E)成分。就該交聯劑而言，沒有特別的限制，可以從目前 的丙烯酸類黏著劑中’慣用作爲交聯劑的物質中任意選擇 適當的物質。就這樣的交聯劑而言，可以列舉例如聚異氰 酸酯化合物、環氧樹脂、三聚氰胺樹脂、脲樹脂、二醛類、 羥甲基聚合物、吖丙烷類化合物、金屬螯合化合物、金屬 烷氧化物、金屬鹽等，較佳係聚異氰酸酯化合物。 其中，就聚異氰酸酯化合物而言，可以列舉甲伸苯二 異氰酸酯 '二苯基甲烷二異氰酸酯、苯二甲基二異氰酸酯 等芳香族聚異氰酸酯、六亞甲基二異氰酸酯等脂肪族聚異 氰酸酯、異佛爾酮二異氰酸酯、氫化二苯基甲烷二異氰酸 酯等脂環式聚異氰酸酯等，以及它們的二縮脲體、異三聚 氰酸酯體、以及與乙二醇、丙二醇、新戊二醇、三羥甲基 丙烷、蓖麻油等低分子含活潑氫化合物的反應物的加合物 等。 在本發明中，該交聯劑可以單獨使用一種’也可以將 兩種以上組合使用。此外，其使用量根據交聯劑的種類有 所不同，相對於總計100質量份的上述（A)成分和（B)成分’ 通常爲0.01〜20質量份，較佳爲0.1 ~10質量份。 -28- 201137068 (矽烷偶合體） 在該黏著劑形成材料中，根據需要，可以含有矽烷偶 合劑’從而再使用所得光學用黏著劑，例如，將偏光板等 光學構件與玻璃胞貼合的情況下，該黏著劑與玻璃胞之間 • \ 的黏著性會更加良好。就該矽烷偶合劑而言，是在分子內 具有至少一個烷氧基矽烷基的有機矽化合物，較佳係與黏 著劑成分的相溶性良好，且具有光透過性的化合物，例如 實質上透明的化合物。該矽烷偶合劑的添加量相對於總計 100質量份的上述（A)成分、（B)成分和（C)成分，較佳爲 0_001~10質量份的範圍，特佳爲0.005~5質量份的範圍。 就上述矽烷偶合劑的具體例而言，可以列舉乙烯基三 甲氧基矽烷、乙烯基三乙氧基矽烷、甲基丙烯醯氧基丙基 三甲氧基矽烷等含有聚合性不飽和基團的矽化合物，3-環 氧丙氧基丙基三甲氧基矽烷、2-(3，4-環氧基環己基）乙基三 甲氧基矽烷等具有環氧基結構的矽化合物，3-胺基丙基三 甲氧基矽烷、N-(2-胺基乙基）-3-胺基丙基三甲氧基矽烷、 N-(2-胺基乙基）-3-胺基丙基甲基二甲氧基矽烷等含有胺基 的矽化合物，3 -氯丙基三甲氧基矽烷等。這些物質可以單 獨使用一種，也可以將兩種以上組合使用。 (光聚合引發劑） 向該黏著劑形成材料照射紫外線等活性能量線，從而 使其中所含的（C)成分的活性能量線固化型化合物交聯 時，根據需要，可以含有光聚合引發劑。另外，在使用電 子束作爲活性能量線時，也可以不使用光聚合引發劑。 -29- 201137068 就該光聚合引發劑而言，可以列舉例如苯偶姻、苯偶 姻甲基酸、苯偶姻乙基醚、苯偶姻丙基醚、苯偶姻正丁基 醚、苯偶姻異丁基醚、乙醯苯、二甲基胺基乙醯苯、2,2-二甲氧基-2-苯基乙醯苯、2,2-二乙氧基-2-苯基乙醯苯、2-羥基-2-甲基-1-苯基丙烷-1-酮、1-羥基環己基苯基酮、2_ 甲基-1-[4-(甲基硫基）苯基]-2-味啉丙烷-1·酮、4-(2-羥基乙 氧基）苯基」2-(羥基-2-丙基）酮、二苯酮、對苯基二苯酮、 4,4’-二乙基胺基二苯酮、二氯二苯酮、2-甲基蒽醌、2-乙 基蒽醌、2 -第三丁基蒽困、2 -胺基蒽醌、2·甲基噻噸酮' 2-乙基噻噸酮、2-氯噻噸酮、2，4-二甲基噻噸酮、2,4-二乙基 噻噸酮、苄基二甲基縮酮、乙醯苯二甲基縮酮、對二甲基 胺基苯甲酸酯、寡聚[2-羥基-2-甲基- l-[4-(l-甲基乙烯基） 苯基]丙酮]、2,4,6-三甲基苯甲醯基-二苯基膦氧化物等。 這些物質可以單獨使用一種，也可以將兩種以上組合使 用，此外，其混合量相對於1〇〇質量份全部活性能量線固 化型化合物，通常爲0.2〜20質量份，較佳爲1~15質量份。 (包含黏著劑形成材料的塗布液的製備） 對含有該黏著劑形成材料的塗布液的製備方法沒有特 別的限制，例如，在溶劑中，包含上述（A)成分的（甲基）丙 烯酸酯共聚物、（B)成分的（甲基）丙烯酸酯共聚物' (C)成分 的活性能量線固化型化合物和（D)成分的抗靜電劑’並加入 根據需要使用的（E)成分的交聯劑和/或矽烷偶合劑、光聚 合引發劑、以及各種添加劑，例如抗氧化劑、紫外線吸收 -30- 201137068 劑、光穩定劑、均塗劑、消泡劑等，攪拌混合，從而 包含該黏著劑形成材料的塗布液。 就上述溶劑而言，可以列舉例如己烷、庚烷等的 族烴，甲苯、二甲苯等芳香族烴，二氯甲烷、二氯乙 鹵代烴，甲醇、乙醇、丙醇、丁醇等醇，丙酮、甲乙 2 -戊酮、異佛爾酮、環己酮等酮，乙酸乙醋' 乙酸丁 酯’乙基溶纖素等之溶纖素類溶劑、丙二醇單甲醚等 醚類溶劑等。這些溶劑可以單獨使用一種，也可以將 以上混合使用。 就該塗布液的黏著性材料的濃度而言，只要該塗 爲適合塗布的黏度’則沒有特別的限制。 [光學用黏著劑] 本發明的光學用黏著劑，使用如上述得到的包含 劑形成材料的塗布液，在剝離薄膜或光學構件等黏 上’藉由習知的方法進行塗布，進行交聯化反應，從 成由本發明的光學用黏著劑形成的層。 該交聯藉由對在上述黏附體上設置的濕塗膜在40 °C左右的溫度下進行加熱處理10秒〜10分鐘左右，從 (E)成分的交聯劑、（A)成分的（甲基）丙烯酸酯共聚物中 聯性官能基團和（B)成分的（甲基）丙烯酸酯共聚物中的 性官能基團發生反應，進行交聯。 另一方面，如此進行加熱處理，對部分交聯化的 體上的塗膜照射活性能量線’從而進行該塗膜中活性 線固化型化合物的交聯。 -3 1- 製備 脂肪 烷等 酮、 酯等 二醇 兩種 布液 黏著 附體 而形 ~1 50 而使 的交 交聯 黏附 能量 201137068 就上述活性能量線而言’在使用紫外線時，該紫外線 可以由闻壓水銀燈、無電極燈、&amp;燈等獲得，另一方面， 電子束藉由電子束加速器等獲得。在該活性能量線中，特 佳係紫外線。另外，在使用電子束的情況下，無需添加光 聚合引發劑，就能形成黏著劑。 就活性能量線對該黏著劑形成材料的照射量而言，可 以進行適當選擇，從而獲得具有優良的貯藏彈性率、對無 鹼玻璃黏附力的黏著劑，在紫外線的情況下，照度爲 50〜1000mW/cm2’光量爲50〜1000mJ/cm2,在電子束的情況 下，較佳爲10~1000krad的範圍。 以下，對本發明具有剝離薄膜的光學用黏著片進行說 明。 [具有剝離薄膜的光學用黏著片] 本發明具有剝離薄膜的光學用黏著片，是使用上述本 發明光學用黏著劑形成的具有剝離薄膜的光學用黏著片》 就該具有剝離薄膜的光學用黏著片的具體例而言，可 以列舉挾持上述本發明的光學用黏著劑，使兩張剝離薄膜 的剝離層側相接的光學用黏著片。該具有剝離薄膜的光學 用黏著片，例如可以如下述般製造。 首先’在剝離薄膜的剝離層上，使用例如棒塗布法、 刀塗布法、輥塗布法、刮板塗布法、縫模塗布法、凹版印 刷法等，塗布含有上述黏著劑形成材料的塗布液，進行乾 燥’從而形成黏著劑形成材料層。然後，在該黏著劑形成 -32- 201137068 材料層上’貼付與上述剝離薄膜的剝離強度不同的其他剝 離薄膜’使其剝離層相接，然後照射活性能量線，從而製 備具有剝離薄膜的光學用黏著片。或是在另一張剝離薄膜 的剝離層上設置黏著劑形成材料層，進行乾燥，然後照射 活性能量線，之後在其上貼附其他剝離薄膜，使剝離層面 相接’從而製備具有剝離薄膜的光學用黏著片。 另外’該光學用黏著片的厚度（不包括剝離薄膜）通常 爲5〜ΙΟΟμιη左右，較佳爲1〇~50μηι» 就上述剝離薄膜而言，可以列舉在聚對苯二甲酸乙二 酯、聚對苯二甲酸丁二酯、聚萘二甲酸乙二醇酯等聚酯薄 膜、聚丙烯或聚乙烯等的聚烯烴薄膜等塑膠薄膜上，塗布 聚矽氧樹脂等脫模劑，設置剝離層的薄膜等。對該剝離薄 膜的厚度沒有特別的限制，通常爲19~150μιη左右。 [具備黏著劑層的光學構件] 進而，本發明還提供了一種在光學構件上，具有由上 述本發明的光學用黏著劑形成的層的具備黏著劑層的光學 構件。 就上述光學構件而言，可以列舉例如偏光板、相位差 板、光學補償薄膜、反射片、輝度提高薄膜等，其中，較 佳使用偏光板和相位差板。此外，由本發明的光學用黏著 劑形成的黏著劑層的厚度通常爲5〜ΙΟΟμηι左右，較佳爲 10〜50μιη，更佳爲 10~30μπι° 該具備黏著劑層的光學構件例如可以如下製備。 *33- 201137068 在剝離薄膜的剝離層上，根據上述方法設置黏著劑形 成材料層，在其上貼合光學構件，然後除去該剝離薄膜， 由黏著劑形成材料層露出面的一側，或不除去該剝離薄 膜，由該剝離薄膜側照射活性能量線，從而製備具有黏著 劑層的光學構件。 本發明具有黏著劑層的光學構件，例如，在將光學構 件作爲偏光板時，形成具備黏著劑層的偏光板。該具備黏 著劑層的偏光板可以用於在例如液晶玻璃胞上黏附。就該 偏光板而言，可以較佳使用僅由偏光薄膜構成的偏光板， 特佳係使用將偏光薄膜與視角擴大薄膜一體化的偏光板。 就上述偏光薄膜與視角擴大薄膜一體化的偏光板而 言，可以列舉例如在聚乙烯醇類偏振器的兩面上，分別貼 合三乙醯基纖維素（TAC)薄膜而成的偏光薄膜的一個面 上，塗布例如由盤狀液晶構成的視角擴大功能層而設置的 偏光板，或用黏著劑貼付視角擴大薄膜的偏光板。在該情 況下，本發明的光學用黏著劑較佳係在上述視角擴大功能 層或視角擴大薄膜側設置。 藉由在液晶玻璃胞上黏著具有上述黏著劑層的偏光板 而製備的液晶顯示裝置，即使在高溫高濕環境下也不會產 生漏光，因此偏光板與液晶玻璃胞的黏著耐久性優異。 此外，上述具備黏著劑層的偏光板由於能改善液晶顯 示裝置的視角特性，因此在藉由相位差板在液晶胞上設置 -34- 201137068 的情況下，也較佳使用。即’在僅由偏光薄膜構成的瘺光 板上使用本發明的光學用黏著劑，獲得具備黏著劑層的偏 光板’將其與相位差板貼合，從而製造新的光學構件。另 外’就上述其他的方法而言，還可以在相位差板上使用本 發明的光學用黏著劑，獲得具有黏著劑層的相位差板，將 其與偏光板貼合。新得到的光學構件只要藉由黏著劑與液 晶玻璃單元貼合，與相位差板側相接即可。其中，作爲將 相位差板與液晶玻璃單元貼合的黏著劑，沒有特別的限 定’可以使用通常在偏光板和液晶玻璃單元的貼合中使用 的黏著劑。另外，較佳係在該新的光學構件中也使用本發 明的光學用黏著劑，獲得新的帶黏著劑層的光學構件，將 其與液晶玻璃單元貼合。 (具有黏著劑層的光學構件黏著劑層的性狀） 由此得到的本發明的具有黏著劑層的光學構件的黏著 力、再加工性、重剝離化、耐漏光性、抗靜電性能和抗靜 電劑的非析出性可以藉由下述方法進行評價。 &lt;再加工性&gt; 再加工性，是指將光學構件藉由黏著劑層與液晶胞貼 合，即使經過規定的時間，黏著劑也不會附著在液晶胞表 面，能容易地從液晶胞將具有黏著劑層的光學構件剝離。 在本發明中，藉由將具有黏著劑層的偏光板的黏著劑 層貼合在玻璃表面，以經過2 1天後的黏著力是否在規定値 內來判斷再加工性。即，經過2 1天後的黏著力如果爲 -35- 201137068 3 ON/2 5 mm以下’則能判斷爲具有通常的再加工性。進而， 如果在20N/25mm以下，則再加工性優異，如果爲15N/25mm 以下，則是特佳的。 本發明的光學用黏著劑，以貼合由以上形成的具備黏 著劑層的光學構件2 1天後的黏著力爲條件，可以達到 2 ON/2 5 mm以下。另外，對於試驗方法，在後詳述。 &lt;耐漏光性&gt; 本發明的具備黏著劑層的偏光板，在後面詳述的耐漏 光性的測定中，Δί*可以未達1.〇,或在1.〇〜2.0的範圍內， 耐漏光性優異。 &lt;重剝離化&gt; 本發明中的重剝離化是指下述現象，在黏著劑層上設 置了剝離薄膜的具備黏著劑層的光學構件被放置固定時間 後’將該剝離薄膜剝離時，剝離薄膜的剝離力隨時間上升。 在本發明中，是指對於經過風乾後的具備黏著劑層的偏光 板’風乾後黏著層上剝離薄膜的剝離力、與風乾後再在70 °C下放置21天後的剝離力的差，在規定値以上的現象。從 耐重剝離化性的觀點來看，具體地說，該剝離力差較佳爲 30mN/25mm以下，更佳爲 20mN/25mm以下，特佳爲 10mN/25mm 以下。 具備黏著劑層的偏光板，直至貼付於液晶胞之前，在 用剝離薄膜保護黏著劑層的狀態下被保管。當保管期較長 時，該剝離薄膜剝落的剝離力上升，將剝離薄膜剝落時， 會損傷黏著劑層表面。因此’要求不發生重剝離化。 -36- 201137068 《測定方法》 將設置了剝離薄膜（厚度3 8μηι)的具備黏著劑層的偏光 板裁剪成寬25mmx長100mm的尺寸。將裁剪過的具備黏著 劑層的偏光板在23°C，相對濕度50%RH的條件下放置7 天（風乾處理）。然後在結束風乾處理後的具備黏著劑層的 偏光板的偏光板面上積層強黏著力的黏著劑，固定在玻璃 基板上，然後，按照以下條件測定剝離力（剝離力α )。 剝離速度：3 00mm/分 剝離角度：180° 另一方面，對於上述結束風乾處理後的具備黏著劑層 的偏光板’在70°C下放置21天。然後同樣將具備黏著劑 層的偏光板固定在玻璃基板上，測定剝離力（剝離力P )。 計算出“剝離力/3 -剝離力α ” ，從而對重剝離化的程 度進行評價。 本發明的光學用黏著劑根據條件，可以將“剝離力冷-剝離力α ”的値控制在5mN/25mm左右，能夠抑制重剝離 化。 &lt;抗靜電性能&gt; 將在黏著劑層面上積層剝離薄膜的具備黏著劑層的偏 光板，裁剪成縱橫50mm ’形成測定試樣。該測定試樣在 2 3 °C、相對濕度5 0 % R Η的條件下加濕2 4小時，將剝離薄 膜剝落，根據〗IS Κ 6911’藉由表面電阻率測定裝置，在 施加電壓100V下測定露出的黏著劑層的表面，對抗靜電性 -37- 201137068 能進行評價。本發明具備黏著劑層的偏光板的黏著劑層的 表面電阻率未達5χ101()Ω/α，具有良好的抗靜電性能。 &lt;抗靜電劑的非析出性&gt; 將具備黏著劑層的偏光板的黏著劑層上的剝離薄膜剝 落，將露出的黏著劑層側貼附在玻璃板上，從而獲得測定 試樣。 將該測定試樣在60°C，相對濕度90%RH的濕熱條件 下放置24小時，然後冷卻至23°C、相對濕度50%RH的濕 熱條件，透過玻璃目視觀察，從而對抗靜電劑的非析出性 進行評價。本發明的光學用黏著劑即使在上述條件後，也 是無色透明的，抗靜電劑的非析出性良好。 實施例 以下，藉由實施例對本發明進行更詳細的說明，但本 發明並不受到這些例子的任何限定。 另外，按照以下要領求出各例得到的光學用黏著劑的 性能、具備黏著劑層的偏光板的性能。 &lt;具備黏著劑層的偏光板的性能&gt; (1)黏著力（對於無鹼玻璃的黏著力） 將具備黏著劑層的偏光板在23°C、相對濕度50%RH 的條件下放置7天。然後使用裁剪裝置[荻野製作所（股）製 造，&quot;SUPERCUTTER” ]，將所得具備黏著劑層的偏光板 裁剪成寬度25mmx長度100mm的尺寸，獲得測定試樣。 -38- 201137068 然後’由所得測定試樣將剝離薄膜剝落後，貼合在紐 '-1— v»、、 鹼玻璃[CORNING公司製造，&quot;EAGLEXG” ]上。 然後’將貼合了測定試樣的無鹼玻璃投入高壓釜[栗原 製作所（股）製造]’在〇.5MPa、50°C的條件下加壓20分鐘， 然後在23°C、相對濕度50%RH的條件下放置1天和2 1天。 然後，對於測定試樣，使用拉伸試驗機[ORIENTEC(股） 製造，“ TENSILON” ]，在下述條件下測定黏著力。 剝離速度：3 00mm/分 剝離角度：180° 如果貼付經過21天後的黏著力爲30N/25mm以下，則 通常判斷爲具有再加工性。此外，如果爲2 0N/2 5 mm以下， 則再加工性優異，如果爲1 5N/2 5mm以下，則可認爲是特 佳的。 (2)表面電阻率 將具備黏著劑層的偏光板裁剪成縱橫5 0mm，獲得測定 試樣。將該測定試樣在23°C，相對濕度50%RH的條件下 加濕24小時，然後，將剝離薄膜剝落，根據.JIS K 69 1 1， 藉由[三菱化學公司製造，“Hiresta UP MCP-HT450 ” ]， 在施加電壓100V下測定露出的黏著劑層的表面’求出表面 電阻率。 如果表面電阻率爲5 X 1 0 1 ^ Ω / □以下’則抗靜電性能良 好。 -39- 201137068 (3) 抗靜電劑的非析出性 將具備黏著劑層的偏光板的黏著劑層上的剝離薄膜剝 落，將露出的黏著劑層側貼付在玻璃板上，從而獲得測定 試樣。 將該測定試樣在6 0 °C ’相對濕度9 0 % R Η的濕熱條件 下放置2 4小時，然後冷卻至2 3 °C，相對濕度5 0 %RH的濕 熱條件，透過玻璃目視觀察’根據下述標準進行評價。 〇：無色透明 △:僅略微起霧 X:在整面上發現凝集物 (4) 剝離力 將設置了剝離薄膜[LINTEC(股）製造， ‘‘ SP-PET38 11” ，厚度38 # m]的具備黏著劑層的偏光板裁 剪成寬25mmx長10 〇mm的尺寸。將裁剪過的具備黏著劑層 的偏光板在23°C ’相對濕度50%RH的條件下放置7天（風 乾處理）。然後’在結束風乾處理後的具備黏著劑層的偏光 板的偏光板面上，積層強黏著力的黏著劑，固定在玻璃基 板上，然後，按照以下條件測定剝離力（剝離力α )。 剝離速度：300mm /分 剝離角度：180° 另一方面’對於上述結束風乾處理後的具備黏著劑層 的偏光板’在70°C下放置21天。然後同樣將具備黏著劑 層的偏光板固定在玻璃基板上，測定剝離力（剝離力^ )。 -40- 201137068 計算出“剝離力β -剝離力α ” ，從而對重剝離化的程 度進行評價。 從防重剝離化性的觀點來看，“剝離力剝離力α ” 的値較佳爲30mN/25mm以下，更佳爲20mN/25mm以下， 特佳爲1 0mN/25mm以下。 (5)耐漏光性 將具備黏著劑層的偏光板（具備盤型液晶層）藉由裁剪 裝置[荻野精機製作所（股）製造，SUPERCUTTER ‘‘ PN1 -600” ] ’調整爲233mmx309mm的尺寸，然後貼合 在無鹼玻璃[CORNING公司製造，“ 1737 ” ]上，之後藉由 栗原製作所製造的高壓釜，在O.SMPa，50。(：的條件下加壓 2 〇分鐘。另外’上述貼合在無鹼玻璃的內外側進行，使得 具備黏著劑層的偏光板形成偏光軸爲正交偏振的狀態。在 該狀態下以8 0 °C放置2 0 0小時。然後，在2 3。(：，相對濕度 5 0%RH的狀態下放置2小時，從而在同一環境下，按照下 示的方法評價防漏光性。 使用[大塚電子公司製造，“MCPD-2000” ],測定圖2 中所示各領域的亮度，亮度差AL*按照下式求出： △ L*= [(b + c + d + e)/4]-aR CH, I 1 + ch2 = c - cooch2ch2 - n - ch3 - cr CHo The formula (2) (wherein R represents a hydrogen atom or a methyl group). In the present invention, the quaternary ammonium salt is contained. The monomers may be used singly or in combination of two or more kinds, and may also be used in combination with the above ionic compounds. In the adhesive forming material, the active energy ray-curable compound present in the material and the above-mentioned quaternary ammonium salt-containing compound are contained when the active energy ray is crosslinked by containing a quaternary ammonium salt-containing monomer. The monomer copolymerizes to introduce a quaternary ammonium salt into the obtained optical adhesive to impart antistatic properties. The content of the antistatic agent in the component (D) of the adhesive forming material varies depending on the type of the antistatic agent, and the surface resistivity is 5×10 1 () Ω/□ or less from the obtained optical adhesive. The antistatic property and the anti-leakage property and the anti-precipitation property of the antistatic agent are usually 0.1 in terms of the above (Α) component (Β) component and (C) component in total of 1 〇〇 mass. It is preferably from 0.5 to 5 parts by mass, more preferably from 0.5 to 3 parts by mass, to about 10 parts by mass. -27- 201137068 'As an arbitrary material in the adhesive forming material, if necessary, it may contain (E) a parent agent, a sand compound coupler, a photopolymerization initiator, and various additives such as an antioxidant, ultraviolet absorption. Agent, light stabilizer, leveling agent, antifoaming agent, etc. ((E) Crosslinking agent) The adhesive material may contain a crosslinking agent as the component (E) as needed. The crosslinking agent is not particularly limited, and an appropriate one can be arbitrarily selected from the conventional acrylic adhesives which are conventionally used as a crosslinking agent. Examples of such a crosslinking agent include polyisocyanate compounds, epoxy resins, melamine resins, urea resins, dialdehydes, methylol polymers, oxime propane compounds, metal chelate compounds, and metal alkoxides. A metal salt or the like is preferably a polyisocyanate compound. In addition, examples of the polyisocyanate compound include an aromatic polyisocyanate such as methylenedibenzene diisocyanate, diphenylmethane diisocyanate or benzodimethyl diisocyanate, and an aliphatic polyisocyanate such as hexamethylene diisocyanate. An alicyclic polyisocyanate such as ketone diisocyanate or hydrogenated diphenylmethane diisocyanate, and their diuret, isomeric cyanate, and ethylene glycol, propylene glycol, neopentyl glycol, and the like. An adduct of a reactant of a low molecular weight active hydrogen-containing compound such as methylolpropane or castor oil. In the present invention, the crosslinking agent may be used singly or in combination of two or more. In addition, the amount of the crosslinking agent is usually from 0.01 to 20 parts by mass, preferably from 0.1 to 10 parts by mass, per 100 parts by mass of the total of the components (A) and (B). -28-201137068 (decane coupling) In the adhesive forming material, if necessary, a decane coupling agent may be contained, and the obtained optical adhesive may be reused, for example, when an optical member such as a polarizing plate is bonded to a glass cell. Underneath, the adhesion between the adhesive and the glass cell will be better. The decane coupling agent is an organic ruthenium compound having at least one alkoxyalkylalkyl group in the molecule, and is preferably a compound having good compatibility with an adhesive component and having light transparency, for example, substantially transparent. Compound. The amount of the decane coupling agent to be added is preferably in the range of 0 to 001 to 10 parts by mass, particularly preferably 0.005 to 5 parts by mass, based on 100 parts by mass of the total of the components (A), (B) and (C). range. Specific examples of the above decane coupling agent include a fluorene containing a polymerizable unsaturated group such as vinyltrimethoxydecane, vinyltriethoxydecane or methacryloxypropyltrimethoxydecane. a compound having an epoxy group structure such as 3-glycidoxypropyltrimethoxydecane or 2-(3,4-epoxycyclohexyl)ethyltrimethoxydecane, 3-aminopropyl Trimethoxy decane, N-(2-aminoethyl)-3-aminopropyltrimethoxydecane, N-(2-aminoethyl)-3-aminopropylmethyldimethoxy An anthracene-containing anthracene compound such as decane or the like, 3-chloropropyltrimethoxydecane or the like. These may be used singly or in combination of two or more. (Photopolymerization Initiator) When the active energy ray-curable compound of the component (C) contained in the component (C) is crosslinked by irradiating the adhesive forming material with an active energy ray such as ultraviolet rays, a photopolymerization initiator may be contained as necessary. Further, when an electron beam is used as the active energy ray, a photopolymerization initiator may not be used. -29- 201137068 The photopolymerization initiator may, for example, be benzoin, benzoin methyl acid, benzoin ethyl ether, benzoin propyl ether, benzoin n-butyl ether, benzene. Occasionally, isobutyl ether, acetophenone, dimethylaminoethyl benzene, 2,2-dimethoxy-2-phenyl acetophenone, 2,2-diethoxy-2-phenyl Acetylene, 2-hydroxy-2-methyl-1-phenylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1-[4-(methylthio)phenyl] -2- morpholine propane-1·ketone, 4-(2-hydroxyethoxy)phenyl”2-(hydroxy-2-propyl)one, benzophenone, p-phenylbenzophenone, 4,4 '-Diethylamino benzophenone, dichlorobenzophenone, 2-methyl hydrazine, 2-ethyl hydrazine, 2-tributyl hydrazine, 2-amino hydrazine, 2·A Thiophenone ketone '2-ethyl thioxanthone, 2-chlorothioxanthone, 2,4-dimethylthioxanthone, 2,4-diethylthioxanthone, benzyldimethylketal, Acetyl dimethyl ketal, p-dimethylamino benzoate, oligo[2-hydroxy-2-methyl-l-[4-(l-methylvinyl)phenyl]propanone] , 2,4,6-trimethylbenzimidyl-diphenylphosphine oxide, and the like. These may be used alone or in combination of two or more. Further, the compounding amount is usually 0.2 to 20 parts by mass, preferably 1 to 15 based on 1 part by mass of the total active energy ray-curable compound. Parts by mass. (Preparation of Coating Liquid Containing Adhesive Forming Material) The preparation method of the coating liquid containing the adhesive forming material is not particularly limited, and for example, (meth) acrylate copolymer containing the above component (A) in a solvent And (B) component (meth)acrylate copolymer '(C) component active energy ray-curable compound and (D) component antistatic agent' and added cross-linking of (E) component if necessary And a decane coupling agent, a photopolymerization initiator, and various additives, such as an antioxidant, ultraviolet absorption -30-201137068 agent, a light stabilizer, a leveling agent, an antifoaming agent, etc., are stirred and mixed to contain the adhesive A coating liquid for forming a material. Examples of the solvent include a hydrocarbon such as hexane or heptane, an aromatic hydrocarbon such as toluene or xylene, a dichloromethane, a dichloroethane halogen hydrocarbon, or an alcohol such as methanol, ethanol, propanol or butanol. , a ketone such as acetone, methyl 2-pentanone, isophorone or cyclohexanone, a cellosolve solvent such as ethyl acetate butyl acetate, ethyl fibrin, or an ether solvent such as propylene glycol monomethyl ether. . These solvents may be used singly or in combination of the above. The concentration of the adhesive material of the coating liquid is not particularly limited as long as the viscosity of the coating is suitable for coating. [Optical Adhesive] The optical adhesive of the present invention is coated with a coating material containing the above-obtained material, and is applied to a release film or an optical member by a conventional method to carry out crosslinking. The reaction is carried out from a layer formed of the optical adhesive of the present invention. The cross-linking is carried out by heat-treating the wet coating film provided on the above-mentioned adherend at a temperature of about 40 ° C for about 10 seconds to 10 minutes, from the crosslinking agent of the component (E) and the component (A) ( The functional group in the (meth) acrylate copolymer of the (meth) acrylate copolymer reacts with the functional group in the (meth) acrylate copolymer of the component (B) to carry out crosslinking. On the other hand, heat treatment is carried out in this manner, and the coating film on the partially crosslinked body is irradiated with an active energy ray' to crosslink the active-line-curable compound in the coating film. -3 1- Preparation of ketones such as fatty ketones, diols such as esters, and other diols adhered to the body and form ~1 50 to make the cross-linking energy 201137068. For the above active energy ray, the ultraviolet ray can be used when using ultraviolet rays. Obtained by a smear-pressure mercury lamp, an electrodeless lamp, a & lamp, etc., on the other hand, an electron beam is obtained by an electron beam accelerator or the like. Among the active energy rays, ultraviolet rays are particularly preferred. Further, in the case of using an electron beam, an adhesive can be formed without adding a photopolymerization initiator. The amount of irradiation of the adhesive forming material on the active energy ray can be appropriately selected to obtain an adhesive having an excellent storage modulus and adhesion to an alkali-free glass. In the case of ultraviolet rays, the illuminance is 50 〜 The amount of light of 1000 mW/cm 2 ' is 50 to 1000 mJ/cm 2 , and in the case of an electron beam, it is preferably in the range of 10 to 1000 krad. Hereinafter, an optical adhesive sheet having a release film of the present invention will be described. [Optical adhesive sheet having a release film] The optical pressure-sensitive adhesive sheet having a release film of the present invention is an optical adhesive sheet having a release film formed by using the optical adhesive of the present invention described above. Specific examples of the sheet include an optical pressure-sensitive adhesive sheet in which the optical adhesive of the present invention is bonded to the peeling layer side of the two release films. The optical adhesive sheet having a release film can be produced, for example, as follows. First, the coating liquid containing the above-mentioned adhesive forming material is applied onto the release layer of the release film by, for example, a bar coating method, a knife coating method, a roll coating method, a blade coating method, a slit die coating method, a gravure printing method, or the like. Drying is performed to form a layer of the adhesive forming material. Then, on the adhesive layer-32-201137068 material layer, another release film which is different from the peeling strength of the above-mentioned release film is attached, and the release layer is brought into contact, and then the active energy ray is irradiated to prepare an optical film having a release film. Adhesive tablets. Or providing an adhesive forming material layer on the peeling layer of another peeling film, drying, and then irradiating the active energy ray, and then attaching another peeling film thereon to make the peeling layer meet" to prepare a peeling film. Adhesive sheet for optics. Further, the thickness of the optical adhesive sheet (excluding the release film) is usually about 5 to ΙΟΟμηη, preferably 1 〇 to 50 μηι». The release film may be exemplified by polyethylene terephthalate or poly. A plastic film such as a polyester film such as butylene terephthalate or polyethylene naphthalate or a polyolefin film such as polypropylene or polyethylene is coated with a release agent such as a polyoxyl resin, and a release layer is provided. Film and the like. The thickness of the release film is not particularly limited and is usually about 19 to 150 μm. [Optical member having an adhesive layer] Further, the present invention provides an optical member comprising an adhesive layer comprising a layer formed of the optical adhesive of the present invention on an optical member. The optical member may, for example, be a polarizing plate, a phase difference plate, an optical compensation film, a reflection sheet, a brightness enhancement film, or the like. Among them, a polarizing plate and a phase difference plate are preferably used. Further, the thickness of the adhesive layer formed of the optical adhesive of the present invention is usually about 5 to ΙΟΟμηι, preferably 10 to 50 μm, more preferably 10 to 30 μm. The optical member having the adhesive layer can be prepared, for example, as follows. *33- 201137068 On the release layer of the release film, an adhesive forming material layer is provided according to the above method, an optical member is attached thereto, and then the release film is removed, and the side of the exposed surface of the material layer is formed by the adhesive, or The release film was removed, and the active energy ray was irradiated from the release film side to prepare an optical member having an adhesive layer. The optical member having an adhesive layer of the present invention, for example, forms a polarizing plate having an adhesive layer when the optical member is used as a polarizing plate. The polarizing plate having an adhesive layer can be used for adhering to, for example, a liquid crystal cell. As the polarizing plate, a polarizing plate composed only of a polarizing film can be preferably used, and a polarizing plate in which a polarizing film and a viewing angle expanding film are integrated is particularly preferably used. The polarizing plate in which the polarizing film and the viewing angle-expanding film are integrated may be, for example, one of polarizing films obtained by laminating a film of triacetyl phthalocyanine (TAC) on both surfaces of a polyvinyl alcohol polarizer. On the surface, a polarizing plate provided by, for example, a viewing angle widening functional layer made of a discotic liquid crystal, or a polarizing plate for attaching a viewing angle-expanding film with an adhesive is applied. In this case, the optical adhesive of the present invention is preferably provided on the viewing angle expanding function layer or the viewing angle expanding film side. A liquid crystal display device prepared by adhering a polarizing plate having the above-described adhesive layer to a liquid crystal glass cell does not cause light leakage even in a high-temperature and high-humidity environment, and therefore has excellent adhesion durability to the polarizing plate and the liquid crystal glass cell. Further, since the polarizing plate having the pressure-sensitive adhesive layer can improve the viewing angle characteristics of the liquid crystal display device, it is preferably used in the case where -34 to 201137068 is provided on the liquid crystal cell by the phase difference plate. In other words, the optical adhesive of the present invention is used on a calender plate composed of only a polarizing film, and a polarizing plate having an adhesive layer is obtained, and this is bonded to a retardation film to produce a new optical member. Further, in the above other methods, the optical adhesive of the present invention can be used on a phase difference plate to obtain a phase difference plate having an adhesive layer, and this can be bonded to a polarizing plate. The newly obtained optical member may be bonded to the liquid crystal glass unit by an adhesive and may be in contact with the phase difference plate side. In particular, the adhesive for bonding the retardation film to the liquid crystal glass unit is not particularly limited. An adhesive which is usually used for bonding a polarizing plate and a liquid crystal glass unit can be used. Further, it is preferable to use the optical adhesive of the present invention in the new optical member to obtain a new optical member with an adhesive layer, and to bond it to the liquid crystal glass unit. (Properties of the optical member adhesive layer having the adhesive layer) The adhesiveness, reworkability, heavy peeling, light leakage resistance, antistatic property, and antistatic property of the optical member having the adhesive layer of the present invention thus obtained The non-precipitation property of the agent can be evaluated by the following method. &lt;Reworkability&gt; Reworkability means that the optical member is bonded to the liquid crystal cell by the adhesive layer, and the adhesive does not adhere to the surface of the liquid crystal cell even after a predetermined period of time, and can be easily removed from the liquid crystal cell. The optical member having the adhesive layer is peeled off. In the present invention, the adhesive layer of the polarizing plate having the adhesive layer is bonded to the surface of the glass, and the reworkability is judged by whether or not the adhesive force after 21 days has passed within the predetermined crucible. In other words, if the adhesive force after 21 days has been -35-201137068 3 ON/2 5 mm or less, it can be judged that it has normal reworkability. Further, when it is 20 N/25 mm or less, the reworkability is excellent, and if it is 15 N/25 mm or less, it is particularly preferable. The optical adhesive of the present invention can be brought up to 2 ON/2 5 mm or less on the condition that the optical member 2 having the adhesive layer formed above is adhered to the adhesive member for one day. In addition, the test method will be described in detail later. &lt;Light Leakage Resistance&gt; In the polarizing plate having the pressure-sensitive adhesive layer of the present invention, Δί* may be less than 1.〇 or in the range of 1.〇 to 2.0 in the measurement of light leakage resistance described later in detail. Excellent light leakage resistance. &lt;Re-peeling&gt; The heavy peeling in the present invention refers to a phenomenon in which the optical member having the adhesive layer provided with the release film on the adhesive layer is left for a fixed period of time, and then the peeling film is peeled off. The peeling force of the release film increases with time. In the present invention, the difference between the peeling force of the peeling film on the adhesive layer after air drying of the polarizing plate having the adhesive layer after air drying, and the peeling force after being left at 70 ° C for 21 days after air drying, In the case of the above regulations. Specifically, the peeling force difference is preferably 30 mN/25 mm or less, more preferably 20 mN/25 mm or less, and particularly preferably 10 mN/25 mm or less from the viewpoint of the peeling resistance. The polarizing plate having the adhesive layer is stored in a state where the adhesive layer is protected by the release film until it is attached to the liquid crystal cell. When the storage period is long, the peeling force of the peeling film peeling rises, and when the peeling film is peeled off, the surface of the adhesive layer is damaged. Therefore, it is required that no heavy peeling occurs. -36-201137068 <<Measurement Method>> A polarizing plate having an adhesive layer provided with a release film (thickness of 3 8 μm) was cut into a size of 25 mm wide and 100 mm long. The cut polarizing plate with the adhesive layer was allowed to stand at 23 ° C and a relative humidity of 50% RH for 7 days (air-drying treatment). Then, an adhesive having a strong adhesive force was deposited on the surface of the polarizing plate of the polarizing plate having the adhesive layer after the air-drying treatment, and the adhesive was fixed on the glass substrate, and then the peeling force (peeling force α) was measured under the following conditions. Peeling speed: 300 mm/min Peeling angle: 180° On the other hand, the polarizing plate ′ having the pressure-sensitive adhesive layer after the end of the air-drying treatment was allowed to stand at 70 ° C for 21 days. Then, a polarizing plate having an adhesive layer was fixed on the glass substrate, and the peeling force (peeling force P) was measured. The "peeling force / 3 - peeling force α " was calculated to evaluate the degree of heavy peeling. In the optical adhesive of the present invention, the "peeling force cold-peeling force α" can be controlled to about 5 mN/25 mm depending on the conditions, and re-peeling can be suppressed. &lt;Antistatic property&gt; A polarizing plate having an adhesive layer in which a release film was laminated on the adhesive layer was cut into a longitudinal and lateral direction of 50 mm to form a measurement sample. The measurement sample was humidified for 24 hours under conditions of 23 ° C and a relative humidity of 50% R , to peel off the release film, and the surface resistivity measuring device was applied at a voltage of 100 V according to the method of IS Κ 6911'. The surface of the exposed adhesive layer was measured and evaluated against static electricity -37-201137068. The surface resistivity of the adhesive layer of the polarizing plate having the adhesive layer of the present invention is less than 5 χ 101 () Ω / α, and has good antistatic properties. &lt;Non-precipitation of antistatic agent&gt; The release film on the pressure-sensitive adhesive layer of the polarizing plate having the pressure-sensitive adhesive layer was peeled off, and the exposed adhesive layer side was attached to a glass plate to obtain a measurement sample. The measurement sample was allowed to stand under hygrothermal conditions of 60 ° C and a relative humidity of 90% RH for 24 hours, and then cooled to a moist heat condition of 23 ° C and a relative humidity of 50% RH, and visually observed through a glass to thereby resist the non-electrostatic agent. The precipitation is evaluated. The optical adhesive of the present invention is colorless and transparent even under the above conditions, and the non-precipitating property of the antistatic agent is good. EXAMPLES Hereinafter, the present invention will be described in more detail by way of examples, but the invention should not be construed as limited. Further, the properties of the optical adhesive obtained in each of the examples and the performance of the polarizing plate having the adhesive layer were determined in the following manner. &lt;Performance of polarizing plate having an adhesive layer&gt; (1) Adhesive force (adhesion to alkali-free glass) A polarizing plate having an adhesive layer was placed at 23 ° C and a relative humidity of 50% RH. day. Then, using a cutting device [manufactured by Takino Seisakusho Co., Ltd., &quot;SUPERCUTTER"], the obtained polarizing plate having an adhesive layer was cut into a size of 25 mm in width and 100 mm in length to obtain a measurement sample. -38 - 201137068 Then 'determined by the obtained The sample was peeled off from the peeling film and attached to New'-1-v», alkali glass [manufactured by CORNING, &quot;EAGLEXG"]. Then, 'the alkali-free glass to which the measurement sample is attached is put into an autoclave [manufactured by Kurihara Seisakusho Co., Ltd.]', and pressurized at MPa5 MPa, 50 ° C for 20 minutes, then at 23 ° C, relative humidity 50. Place 1 day and 2 1 days under %RH conditions. Then, the measurement sample was measured for the adhesion under the following conditions using a tensile tester [ORIENTEC ("TENSILON"). Peeling speed: 300 mm/min Peeling angle: 180° If the adhesive force after 21 days of application is 30 N/25 mm or less, it is usually judged to have reworkability. Further, when it is 20 N/2 5 mm or less, the reworkability is excellent, and if it is 15 N/2 5 mm or less, it is considered to be particularly preferable. (2) Surface resistivity A polarizing plate having an adhesive layer was cut into a vertical and horizontal direction of 50 mm to obtain a measurement sample. The measurement sample was humidified at 23 ° C and a relative humidity of 50% RH for 24 hours, and then the release film was peeled off, according to JIS K 69 1 1, by [Mitsubishi Chemical Co., Ltd., "Hiresta UP MCP -HT450 ”], the surface of the exposed adhesive layer was measured at an applied voltage of 100 V to determine the surface resistivity. If the surface resistivity is 5 X 1 0 1 ^ Ω / □ or less, the antistatic property is good. -39- 201137068 (3) Non-precipitating property of antistatic agent The peeling film on the adhesive layer of the polarizing plate having the adhesive layer is peeled off, and the exposed adhesive layer side is attached to the glass plate to obtain a measurement sample. . The test sample was allowed to stand under hygrothermal conditions of 60 ° C 'relative humidity of 90% R 2 for 24 hours, then cooled to 23 ° C, and the relative humidity was 50 % RH in wet heat conditions, visually observed through the glass. Evaluation was performed according to the following criteria. 〇: colorless and transparent △: only slightly fogging X: agglomerates are found on the whole surface (4) The peeling force will be set with a release film [LINTEC (manufacturing), ''SP-PET38 11', thickness 38 # m] The polarizing plate having the adhesive layer was cut into a size of 25 mm wide and 10 mm long. The cut polarizing plate with the adhesive layer was allowed to stand under conditions of 23 ° C 'relative humidity 50% RH for 7 days (air-drying treatment). Then, the adhesive having a strong adhesion was laminated on the surface of the polarizing plate of the polarizing plate having the adhesive layer after the air-drying treatment, and the adhesive was fixed on the glass substrate, and then the peeling force (peeling force α) was measured under the following conditions. Speed: 300 mm / min. Peeling angle: 180 ° On the other hand, 'the polarizing plate with the adhesive layer after the end of the air-drying treatment was placed at 70 ° C for 21 days. Then the polarizing plate with the adhesive layer was also fixed at the same time. The peeling force (peeling force ^) was measured on the glass substrate. -40-201137068 The "peeling force β - peeling force α" was calculated to evaluate the degree of heavy peeling. From the viewpoint of the anti-stripping property, "Peel force stripping The α of the force α ” is preferably 30 mN/25 mm or less, more preferably 20 mN/25 mm or less, and particularly preferably 10 mN/25 mm or less. (5) Light leakage resistance with a polarizing plate having an adhesive layer (with a disk type liquid crystal layer) ) Manufactured by the cutting device [Takino Seiki Co., Ltd., SUPERCUTTER '' PN1 -600" ] ' adjusted to a size of 233 mm x 309 mm, and then attached to an alkali-free glass [manufactured by CORNING, "1737"], and then by The autoclave manufactured by Kurihara Seisakusho Co., Ltd., at O.SMPa, 50. (The pressure is 2 〇 minutes under the condition of :. The above bonding is performed on the inner and outer sides of the alkali-free glass, so that the polarizing plate having the adhesive layer forms a state in which the polarization axis is orthogonally polarized. In this state, 80 0 is obtained. The temperature was allowed to stand for 2 hours at 0 ° C. Then, it was allowed to stand for 2 hours under the condition of a relative humidity of 50% RH, and the light leakage prevention was evaluated according to the method shown below under the same environment. The company manufactures, "MCPD-2000"], and measures the brightness of each field shown in Figure 2. The brightness difference AL* is obtained by the following equation: △ L*= [(b + c + d + e)/4]-a

(其中，a、b、c、d和e分別爲在A區域、B區域、C 區域、D區域和E區域中預先測定的點（各區域中央部分— 個部位）中的亮度），作爲漏光性，按照下述判斷標準評價 耐漏光性。 -41 - 201137068 ◎ : △ L * &lt; 1 . 〇 Ο： 1.0^AL*^2.0 X ： Δ L*&gt;2.〇 (6)具備黏著劑層的偏光板的耐久性（15英寸大小） 將具備黏著劑層的偏光板藉由裁剪裝置[荻野精機製 作所（股）製造，SUPERCUTTER “ PN1 -600 ” ]，調整爲 23 3mmx3 09mm的尺寸’然後貼合在無鹼玻璃[CORNING公 司製造’ “ 1 73 7 ” ]上’之後藉由栗原製作所公司製造的高 壓釜，在0.5MPa，50°C的條件下加壓20分鐘。然後放入 到下述各耐久條件的環境下，在2 0 0小時後，使用1 〇倍的 放大鏡觀察，按照以下判斷標準評價耐久性。 〇 :從頂端部分至0.3 mm以上的位置完全沒有缺陷點（鼓 脹、分開、發泡等）。 △:從頂端部分至0.3〜0.7mm的位置存在缺陷點。從頂 端部分至超過〇.7mm的位置沒有缺陷點。 X :從頂端部分至〇.7mm以上的位置存在缺陷點。 &lt;耐久條件&gt; 在6 0 °C、相對濕度9 0 % R Η的環境、8 0。(：的乾式環境 進行-35°C〜7〇t的各30分鐘的熱衝擊試驗，迴圈200 次 實施例1 ~ 9和比較例丨〜6 製備表1所示組成（換算成固體成分）的黏著劑形成材 料’再加入甲苯作爲溶劑，獲得固體成分調整爲2〇質量％ -42- 201137068 的塗布液。使用該塗布液，在作爲剝離薄膜的厚度38/zm 的聚對苯二甲酸乙二酯製的剝離薄膜[LIN TEC公司製造， “SP-PET3811” ]的剝離層上，用刀式塗布機進行塗布，以 使乾燥後的厚度爲20μπι，然後在90°C下乾燥處理1分鐘， 從而形成黏著劑形成材料層。 然後’將由具備盤型液晶層（視角擴大功能層）的偏光 薄膜構成的偏光板進行貼合，使黏著劑形成材料層與盤型 液晶層相接。從貼合3 0分鐘後，由剝離薄膜側按照下述條 件照射紫外線（UV)，製備具備黏著劑層的偏光板。黏著劑 層的厚度爲25μπι。 &lt;UV照射條件&gt; • FUSION公司製的無電極燈，使用Η燈泡 •照度 600mW/cm2，光量 150mJ/cm2 UV照度光量計使用[EYE GRAPHICS公司製造， “ U V P F - 3 6，，]。 黏著劑的性能、具備黏著劑層的偏光板的性能和抗靜 電劑的非析出性的評價結果在表2中示出》 此外，將實施例1的上述黏著劑形成材料層與其他聚 對苯二甲酸乙二酯製造的剝離薄膜[LINTEC公司製造， “SP-PET3 8 0 1 ” ]貼合來代替與上述偏光板貼合》 然後，在與偏光板貼合的情況同樣的條件下照射紫外 線，從而獲得剝離薄膜/黏著劑層/剝離薄膜的結構的光學 用黏著片。 -43- 201137068 然後，將剝離薄膜[LINTEC公司製造，“SP-PET3801” ] 剝落，對露出的黏著劑層表面和與上述偏光板的黏著劑層 貼合側的表面進行電暈處理，然後將它們貼合，從而獲得 具備黏著劑層的偏光板。 所得具備黏著劑層的偏光板具有與實施例1的具備黏 著劑層的偏光板相同的性能。 表1-1 黏著劑形成材料 (Α)丙烯酸酯共聚1 勿 (B)丙烯酸酯共聚物 (C)多官f 拒丙烯酸酯 (a-1) (a-2) (a-3) 其他 含量 (質量份） (b-1) (b-2) 含量 (質量份） mm 含a (質量份） MEA1) ECAJ&gt; HEA3) ba4) aa5) BA AA 實施例1 20 - 1.5 78.5 - 100 90 10 10 M-3156) 15 實施例2 20 - 1.5 78.5 - 100 90 10 10 M-315 5 實施例3 20 - 1.5 78.5 - 100 90 10 10 M-315 5 實施例4 20 - 1.5 78.5 - 100 90 10 10 M-315 5 實施例5 25 - 1.5 73.5 - 100 90 10 10 M-315 5 實施例6 - 20 1.5 78.5 - 100 90 10 10 M-315 5 實施例7 20 - 5.0 75.0 - 100 90 10 10 M-315 5 實施例8 40 - 1.5 58.5 - 100 90 10 10 M-315 5 實施例9 30 - 1.5 68.5 - 100 90 10 10 M-315 5 比較例1 - - 1.5 98.5 - 100 90 10 10 M-315 5 比較例2 - - 1.5 98.5 - 100 90 10 10 M-315 5 比較例3 20 - 1.5 78.5 - 100 - - - M-315 5 比較例4 20 - 10.0 70.0 - 100 90 10 10 M-315 5 比較例5 40 - 1.5 58.5 - 100 - - - M-315 5 比較例ό 40 - 1.5 57.5 1.0 100 - - - M-315 5 註： 1) MEA:丙烯酸2-(甲氧基）乙酯 2) ECA :丙烯酸乙基卡比醇酯 3) HEA :丙烯酸2-羥基乙酯 4) BA :丙烯酸丁酯 5) AA :丙烯酸 6) M-315:參（丙烯醯氧基乙基）異氰脲酸酯[東亞合成 公司製造，商品名] 另外，（a-1)、（a-2)、（a-3)和其他欄的數値，表示（A) -4 4 - 201137068 丙烯酸酯共聚物中的各成分（結構單元）的含量（質量％)， (b-l)和（b-2)欄的數値表示（B)丙烯酸酯共聚物中各成分（結 構單元）的含量（質量％)。 此外，丙烯酸酯共聚物（A)和（B)的重量平均分子量（Mw) 均爲1 40萬。測定條件如下所述。 &lt;GPC測定條件&gt; GPC測定裝置：TOSOH(股）公司製造，“HLC-8020” GPC管柱（按以下順序藉由广TOSOH(股）公司製造 T S K 保護管柱“ Η X L - Η ” TSK 矽膠管柱 “GMHXL” (χ2) TSK 矽膠管柱 “ G2000HXL”(Where, a, b, c, d, and e are the points measured in the A region, the B region, the C region, the D region, and the E region, respectively (the brightness in the central portion of each region), as the light leakage The light leakage resistance was evaluated according to the following criteria. -41 - 201137068 ◎ : △ L * &lt; 1 . 〇Ο: 1.0^AL*^2.0 X : Δ L*>2. 〇 (6) Durability of polarizer with adhesive layer (15 inches) The polarizing plate with the adhesive layer is manufactured by a cutting device [manufactured by Takino Seiki Co., Ltd., SUPERCUTTER "PN1 -600"], adjusted to a size of 23 3mm x 3 09mm' and then attached to an alkali-free glass [manufactured by CORNING] 1 73 7 ′′] After the 'autoclave manufactured by Kurihara Seisakusho Co., Ltd., it was pressurized at 0.5 MPa and 50 ° C for 20 minutes. Then, it was placed in an environment of the following durability conditions, and after 200 hours, it was observed with a magnifying glass of 1 〇 times, and the durability was evaluated according to the following criteria. 〇 : There is no defect point (inflating, separating, foaming, etc.) from the top part to the position of 0.3 mm or more. △: There is a defect point from the tip portion to a position of 0.3 to 0.7 mm. There is no defect point from the top end portion to a position exceeding 〇.7 mm. X: There is a defect point from the top part to the position of 〇.7mm or more. &lt;Endurance conditions&gt; At 80 ° C, a relative humidity of 90% R Η, environment 80. (: The dry environment was subjected to a thermal shock test of -35 ° C to 7 〇t for 30 minutes, and the loop was repeated for 200 times of Examples 1 to 9 and Comparative Example 丨 6 to prepare the composition shown in Table 1 (converted into solid content) Adhesive forming material 'Addition of toluene as a solvent to obtain a coating liquid having a solid content adjusted to 2% by mass -42 to 201137068. Using the coating liquid, polyethylene terephthalate having a thickness of 38/zm as a release film A release film made of a diester [manufactured by LIN TEC, "SP-PET3811"] was applied on a release layer by a knife coater so as to have a thickness of 20 μm after drying, and then dried at 90 ° C for 1 minute. Then, an adhesive forming material layer is formed. Then, a polarizing plate composed of a polarizing film having a disk-type liquid crystal layer (viewing angle expansion functional layer) is bonded to each other so that the adhesive forming material layer and the disk-shaped liquid crystal layer are in contact with each other. After 30 minutes, ultraviolet rays (UV) were irradiated from the peeling film side under the following conditions to prepare a polarizing plate having an adhesive layer. The thickness of the adhesive layer was 25 μm. &lt;UV irradiation conditions&gt; • None by FUSION Co., Ltd. electrode Lamp, using Η bulb • Illuminance 600mW/cm2, light quantity 150mJ/cm2 UV illuminance meter used [EYE GRAPHICS company, “UVPF - 3 6,,]. Adhesive properties, performance of polarizer with adhesive layer and The results of the evaluation of the non-precipitating property of the antistatic agent are shown in Table 2. In addition, the above-mentioned adhesive forming material layer of Example 1 and a peeling film made of other polyethylene terephthalate [manufactured by LINTEC Corporation," SP-PET3 8 0 1 ′′ is attached to the polarizing plate instead of the above-mentioned polarizing plate. Then, ultraviolet rays are irradiated under the same conditions as those of the polarizing plate to obtain a structure of the release film/adhesive layer/release film. -43-201137068 Then, the release film ["PE-PET3801", manufactured by LINTEC Co., Ltd.] is peeled off, and the surface of the exposed adhesive layer and the surface of the adhesive layer on the side of the polarizing plate are electrically connected. The halo treatment was carried out, and then they were bonded to obtain a polarizing plate having an adhesive layer. The obtained polarizing plate having an adhesive layer had the same performance as the polarizing plate having the adhesive layer of Example 1. Table 1-1 Adhesive forming material (Α) Acrylate copolymerization 1 Do not (B) Acrylate copolymer (C) Multi-French acrylate acrylate (a-1) (a-2) (a-3) Other content ( Parts by mass) (b-1) (b-2) Content (parts by mass) mm A (parts by mass) MEA1) ECAJ&gt; HEA3) ba4) aa5) BA AA Example 1 20 - 1.5 78.5 - 100 90 10 10 M -3156) 15 Example 2 20 - 1.5 78.5 - 100 90 10 10 M-315 5 Example 3 20 - 1.5 78.5 - 100 90 10 10 M-315 5 Example 4 20 - 1.5 78.5 - 100 90 10 10 M- 315 5 Example 5 25 - 1.5 73.5 - 100 90 10 10 M-315 5 Example 6 - 20 1.5 78.5 - 100 90 10 10 M-315 5 Example 7 20 - 5.0 75.0 - 100 90 10 10 M-315 5 Example 8 40 - 1.5 58.5 - 100 90 10 10 M-315 5 Example 9 30 - 1.5 68.5 - 100 90 10 10 M-315 5 Comparative Example 1 - - 1.5 98.5 - 100 90 10 10 M-315 5 Comparative Example 2 - - 1.5 98.5 - 100 90 10 10 M-315 5 Comparative Example 3 20 - 1.5 78.5 - 100 - - - M-315 5 Comparative Example 4 20 - 10.0 70.0 - 100 90 10 10 M-315 5 Comparative Example 5 40 - 1.5 58.5 - 100 - - - M-315 5 Comparative Example - 40 - 1.5 57.5 1.0 100 - - - M-315 5 Note: 1) MEA: C 2-(Methoxy)ethyl acrylate 2) ECA: ethyl carbitol ethyl acrylate 3) HEA: 2-hydroxyethyl acrylate 4) BA: butyl acrylate 5) AA: acrylic acid 6) M-315: Reference (acryloyloxyethyl)isocyanurate [manufactured by Toagosei Co., Ltd., trade name] In addition, the numbers of (a-1), (a-2), (a-3) and other columns indicate (A) -4 4 - 201137068 Content (% by mass) of each component (structural unit) in the acrylate copolymer, and the number of columns in (b) and (b-2) indicates (B) each of the acrylate copolymers Content (mass unit) of the component (structural unit). Further, the weight average molecular weight (Mw) of the acrylate copolymers (A) and (B) was 1,400,000. The measurement conditions are as follows. &lt;GPC measurement conditions&gt; GPC measurement apparatus: "HLC-8020" GPC column manufactured by TOSOH Co., Ltd. (TSK protection column "“ XL - Η" TSK was manufactured by the company TOSOH Co., Ltd. in the following order. Rubber hose column "GMHXL" (χ2) TSK rubber hose column "G2000HXL"

測定溶劑：四氫呋喃 檢測線：聚苯乙烯 測定溫度：40°C 表1-2 黏著劑形成材料 光聚合 引發劑7) (Ε)交聯劑 TDIS) 矽烷偶合劑 KBM-4039' (D)抗靜電劑 (質量份） (質量份） (質量份） 種類 分散介質 濃度 (質量％) 含量 (質量份） 實施例1 1.5 2.0 0.2 PyPF6l0) - 100 2.50 實施例2 0.5 2.0 0.2 PyPFfi 100 2.00 實施例3 0.5 2.0 0.2 KFSln) N甘醇二甲醚w 50 3.00 實施例4 0.5 2.0 0.2 LiTFSI12) 四甘醇二甲醚 46 2.50 實施例5 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 2.50 實施例ό 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 2.50 實施例7 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 2.50 實施例8 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 2.00 實施例9 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 2.50 比較例1 0.5 2.0 0.2 LiTFSI 二丁氢乙醇己一酸 20 4.00 比較例2 0.5 2.0 0.2 LiTFSI 二丁氬乙醇己二酸_ 20 8.00 比較例3 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 3.00 比較例4 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 3.00 比較例5 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 2.00 比較例6 0.5 2.0 0.2 LiTFSI 四甘醇二甲醚 46 2.00 -45- 201137068 註： 7) 光聚合引發劑：二苯酮與卜羥基環己基苯基酮的質 量比爲1:1的混合物[Ciba Specialty Chemicals公司製造’ “IRGACURE500” ] 8) TDI:甲苯二異氰酸酯：三羥甲基丙烷= 3:1(莫耳比） 的加成物 9) KBM-403 ： 3-縮水甘油基丙基三甲氧基矽烷[信越化 學（股）製造，商品名] 10) PyPF6: 1-辛基-4-甲基吡啶鎗六氟膦酸鹽 11) KFSI:雙（二氟磺醯基）醯亞胺鉀 12) LiTFSI:雙（三氟甲烷磺醯基）醯亞胺鉀 13) 四甘醇二甲醚：四乙二醇二甲醚 表2 各特性的評價結果 表面 電阻率 黏著力 (N/25mm) 耐久性 耐光 洩漏性 [WVM,] 剝離力 (mN/25mm) 抗靜電劑 的非析出 性 (Ω/α) 貼附 1天後 貼附 21天後 8〇r, 乾燥 60eC, 90%RH 熱衝擊 棚 ⑷ 70eC下經過 21天後(/S) (β)&lt;α) 實施例1 4x10'° 1.5 17.2 〇 〇 〇 ◎ 25 30 5 〇 實施例2 2xl010 2.6 14.2 〇 〇 〇 〇 25 30 5 〇 實施例3 2x10'° 2.5 13.5 〇 〇 〇 〇 25 30 5 〇 實施例4 2xl〇'° 2.5 15.3 〇 〇 〇 〇 25 30 5 〇 實施例5 lxlO10 3.0 17.3 〇 〇 〇 〇 25 30 5 〇 實施例&lt;5 lxl〇'° 5.8 23.4 〇 〇 〇 〇 25 30 5 〇 實施例7 2xl〇'° 1.8 10.5 〇 〇 〇 〇 25 30 5 〇 實施例8 lxlO10 7.0 45.0 〇 〇 〇 〇 30 100 70 〇 實施例9 lxlO10 4.5 34.0 〇 〇 〇 〇 30 90 60 〇 比較例1 5xlOn 1.2 6.2 〇 Δ 〇 〇 25 30 5 〇 比較例2 7xl010 0.5 4.5 〇 X 〇 〇 25 30 5 X 比較例3 2xl〇'° 2.6 8.5 〇 X 〇 〇 25 30 5 〇 比較例4 2xl010 1.3 2.7 〇 X 〇 〇 25 30 5 1 〇 比較例5 lxlO10 3.5 35.2 〇 X 〇 〇 30 45 15 〇 比較例6 lxlO10 9.3 34.0 〇 X 〇 〇 30 65 35 〇 註： 14)WV:具備盤型液晶層的偏光板 -46- 201137068 工業上的可利用性 本發明的光學用黏著劑，在黏著劑上積層偏光板等光 學構件時使用，具有抗靜電性能，具有良好的黏附力、再 剝離性（再加工性）和耐久性，且還兼具抗靜電劑的防洩漏 性’較佳係用於偏光板等光學構件的貼附。 【圖式簡單說明】 圖1是表示偏光板一個例子結構的立體圖。 圖2是表示對實施例、比較例所得具備黏著劑層的偏 光板的耐漏光性進行評價的方法的說明圖。 【主要元件符號說明】 1 聚乙烯醇系偏光鏡Determination solvent: tetrahydrofuran detection line: polystyrene measurement temperature: 40 ° C Table 1-2 Adhesive forming material photopolymerization initiator 7) (Ε) crosslinker TDIS) decane coupling agent KBM-4039' (D) antistatic Agent (parts by mass) (parts by mass) (parts by mass) Type of dispersion medium concentration (% by mass) Content (parts by mass) Example 1 1.5 2.0 0.2 PyPF6l0) - 100 2.50 Example 2 0.5 2.0 0.2 PyPFfi 100 2.00 Example 3 0.5 2.0 0.2 KFSln) N glyme dimethyl ether w 50 3.00 Example 4 0.5 2.0 0.2 LiTFSI 12) Tetraethylene glycol dimethyl ether 46 2.50 Example 5 0.5 2.0 0.2 LiTFSI Tetraethylene glycol dimethyl ether 46 2.50 Example ό 0.5 2.0 0.2 LiTFSI tetraglyme dimethyl ether 46 2.50 Example 7 0.5 2.0 0.2 LiTFSI tetraglyme dimethyl ether 46 2.50 Example 8 0.5 2.0 0.2 LiTFSI tetraglyme dimethyl ether 46 2.00 Example 9 0.5 2.0 0.2 LiTFSI tetraethylene glycol II Methyl ether 46 2.50 Comparative Example 1 0.5 2.0 0.2 LiTFSI Dibutylhydroperoxyethanol monoacid 20 4.00 Comparative Example 2 0.5 2.0 0.2 LiTFSI Dibutyl argon ethanol adipate _ 20 8.00 Comparative Example 3 0.5 2.0 0.2 LiTFSI Tetraethylene Glycol 46 3.00 Comparative Example 4 0.5 2.0 0.2 LiTFSI tetraglyme dimethyl ether 46 3.00 Comparative Example 5 0.5 2.0 0.2 LiTFSI Tetraethylene glycol dimethyl ether 46 2.00 Comparative Example 6 0.5 2.0 0.2 LiTFSI Tetraethylene glycol dimethyl ether 46 2.00 -45- 201137068 Note: 7) Photopolymerization initiation Agent: a mixture of benzophenone and hydroxycyclohexyl phenyl ketone in a mass ratio of 1:1 [manufactured by Ciba Specialty Chemicals, Inc.] "IRGACURE500"] 8) TDI: toluene diisocyanate: trimethylolpropane = 3:1 Addition of (Mohrby) 9) KBM-403 : 3-glycidylpropyltrimethoxydecane [Manufactured by Shin-Etsu Chemical Co., Ltd., trade name] 10) PyPF6: 1-octyl-4-methyl Pyridine gun hexafluorophosphonate 11) KFSI: bis(difluorosulfonyl) quinone imide potassium 12) LiTFSI: bis(trifluoromethanesulfonyl) quinone imide potassium 13) tetraglyme dimethyl ether: four Ethylene glycol dimethyl ether Table 2 Evaluation results of various characteristics Surface resistivity Adhesion (N/25mm) Durability and light leakage resistance [WVM,] Peeling force (mN/25mm) Non-precipitating property of antistatic agent (Ω/α Attached after 1 day, attached 8 days later, 8〇r, dried 60eC, 90% RH thermal shock shed (4) After 21 days at 70eC (/S) (β) &lt;α) Example 1 4x10'° 1.5 17.2 〇〇〇◎ 25 30 5 〇Example 2 2xl010 2.6 14.2 〇〇〇〇25 30 5 〇Example 3 2x10'° 2.5 13.5 〇〇〇〇25 30 5 〇Example 4 2xl〇'° 2.5 15.3 〇 〇〇〇25 30 5 〇Example 5 lxlO10 3.0 17.3 〇〇〇〇25 30 5 〇Example &lt;5 lxl〇'° 5.8 23.4 〇〇〇〇25 30 5 〇Example 7 2xl〇'° 1.8 10.5 〇 〇〇〇25 30 5 〇Example 8 lxlO10 7.0 45.0 〇〇〇〇30 100 70 〇Example 9 lxlO10 4.5 34.0 〇〇〇〇30 90 60 〇Comparative example 1 5xlOn 1.2 6.2 〇Δ 〇〇25 30 5 〇Comparative Example 2 7xl010 0.5 4.5 〇X 〇〇25 30 5 X Comparative Example 3 2xl〇'° 2.6 8.5 〇X 〇〇25 30 5 〇Comparative Example 4 2xl010 1.3 2.7 〇X 〇〇25 30 5 1 〇Comparative Example 5 lxlO10 3.5 35.2 〇X 〇〇30 45 15 〇Comparative Example 6 lxlO10 9.3 34.0 〇X 〇〇30 65 35 〇Note: 14) WV: Polarizing plate with disc type liquid crystal layer -46- 201137068 Industrial Applicability The present invention An optical adhesive that allows an optical member such as a polarizing plate to be laminated on an adhesive It has antistatic properties, good adhesion, removability (reworkability) and durability, and also has anti-leakage properties of antistatic agent. It is preferably used for attaching optical members such as polarizing plates. . BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an example structure of a polarizing plate. Fig. 2 is an explanatory view showing a method of evaluating the light leakage resistance of the polarizing plate having the pressure-sensitive adhesive layer obtained in the examples and the comparative examples. [Main component symbol description] 1 Polyvinyl alcohol polarizer

2 TAC薄膜I 2’ TAC 薄膜 II 3 黏著劑層 4 剝離片 5 表面保護薄膜 10 偏光板 -47-2 TAC film I 2' TAC film II 3 Adhesive layer 4 Release sheet 5 Surface protection film 10 Polarizer -47-

Claims (1)

201137068 七、申請專利範圍： 1. 一種光學用黏著劑，其特徵在於由黏著劑形成材料交聯 而得到，該黏著劑形成材料含有：（A)(甲基）丙烯酸酯共 聚物，其具有以下三者作爲結構單元：5~9〇質量％的（3-1) 包含氧化烯基團的（甲基）丙烯酸類單體、未達10質量％ 的（a-2)包含反應性基團的（甲基）丙烯酸類單體、（a-3)(甲 基）丙烯酸烷酯；（B)(甲基）丙烯酸酯共聚物，其具有包含 反應性基團的（甲基）丙烯酸類單體作爲結構單元；（C)活 性能量線固化型化合物和（D)抗靜電劑，且該（A)成分和（B) 成分的含有比例以質量比計爲100:1〜1 00:50。 2. 如申請專利範圍第1項的光學用黏著劑，其中，相對於 總計1〇〇質量份的（A)成分和（B)成分，（C)活性能量線固 化型化合物的含量爲1~50質量份。 3 .如申請專利範圍第1或2項的光學用黏著劑’其中’在 (a-1)包含氧化烯基團的（甲基）丙烯酸類單體中’氧化嫌基 團的碳原子數爲2〜4，且該氧化烯基團的個數爲1〜10° 4.如申請專利範圍第1或2項的光學用黏著劑’其中’（a·2) 包含反應性基團的（甲基）丙烯酸類單體爲包含經基的（甲 基）丙烯酸類單體。 5 .如申請專利範圍第1或2項的光學用黏著劑’其中’ （B) 成分的結構單元的包含反應性基團的（甲基）丙燃酸類單 體爲包含羧基的（甲基）丙烯酸類單體。 -48- 201137068 6. 如申請專利範圍第1或2項的光學用黏著劑’其中，相 對於總計100質量份的（A)成分和（B)成分和（C)成分，（D) 抗靜電劑的含量爲〇.1~1〇質量份。 7. 如申請專利範圍第1或2項的光學用黏著劑，其中，黏 著劑形成材料還含有（E)交聯劑。 8. —種具備剝離薄膜的光學用黏著片，其係使用如申請專 利範圍第1至7項中任一項的光學用黏著劑而形成。 9. 一種具備黏著劑層的光學構件，其中，在光學構件上具 有由如申請專利範圍第1至7項中任一項的光學用黏著 劑形成的層。 1 〇.如申請專利範圍第9項的具備黏著劑層的光學構件，其 中’光學構件係偏光板。 -49-201137068 VII. Patent Application Range: 1. An optical adhesive characterized by being crosslinked by an adhesive forming material comprising: (A) a (meth) acrylate copolymer having the following The three are structural units: 5 to 9% by mass of (3-1) (meth)acrylic monomers containing an oxyalkylene group, and less than 10% by mass of (a-2) containing a reactive group (meth)acrylic monomer, (a-3) alkyl (meth)acrylate; (B) (meth) acrylate copolymer having a (meth)acrylic monomer containing a reactive group (C) an active energy ray-curable compound and (D) an antistatic agent, and the content ratio of the component (A) and the component (B) is 100:1 to 00:50 by mass ratio. 2. The optical adhesive according to the first aspect of the invention, wherein the content of the (C) active energy ray-curable compound is 1 to 1 part by mass of the component (A) and the component (B). 50 parts by mass. 3. The optical adhesive of claim 1 or 2 wherein 'in the (a-1) (meth)acrylic monomer containing an oxyalkylene group, the number of carbon atoms of the oxidizing group is 2 to 4, and the number of the oxyalkylene groups is 1 to 10° 4. The optical adhesive of the first or second aspect of the patent application 'where '(a·2) contains a reactive group (A) The acrylic monomer is a (meth)acrylic monomer containing a trans group. 5. The optical adhesive according to claim 1 or 2, wherein the (meth)propionic acid monomer containing a reactive group in the structural unit of the component (B) is a (methyl) group containing a carboxyl group Acrylic monomer. -48- 201137068 6. The optical adhesive of claim 1 or 2, wherein (D) antistatic against the total of 100 parts by mass of the components (A) and (B) and (C) The content of the agent is 〇.1~1〇 parts by mass. 7. The optical adhesive according to claim 1 or 2, wherein the adhesive forming material further contains (E) a crosslinking agent. An optical adhesive sheet comprising a release film, which is formed by using an optical adhesive according to any one of claims 1 to 7. An optical member having an adhesive layer, wherein the optical member has a layer formed of the optical adhesive according to any one of claims 1 to 7. An optical member having an adhesive layer according to claim 9 of the invention, wherein the optical member is a polarizing plate. -49-
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