201209117 六、發明說明： 【發明所屬之技術領域】 本發明係、關於黏著性組合物、黏著劑(使黏著性組合物 架橋之材料）及黏著板片’特別是關於可良好地用於偏光板 等的光學構件用之黏著性組合物、黏著劑及黏著板片。 【先前技術】 般而5，在於液晶面板，將偏光板或位相差板接著 於玻璃基板等夕使用由黏著劑組合物所形成之黏著劑層。 仁是由於偏光板或位相差板等的光學構件容易因熱等而 収縮，因熱履歷而發生収縮，結果，層積於該光學構件之 黏著劑層無法追隨其収縮，而有在界面發生剝落（所謂起 /包、剝落）’及起因於光學構件収縮時的應力而使光學構件 的光軸偏移產生漏光（所謂白點）等的間題。 防止該等之方法，可舉（1)藉由將黏著力高，且形態安 定性優良的黏著劑層黏貼於偏光板等的光學構件光學構件 抑制収縮本身之方法；或（2)使用光學構件収縮時之應力小 的黏著劑層之方法。⑴之方法，如專利文獻（所示使用貯 蔵彈性係數高的黏著劑層為有効。另一方面，之方法， 使用可柔軟地對應光學構件的變形之應力緩和性優良的黏 者劑層為有効。但是，先前欲形成如此之應力緩和性優良 的黏著劑層時，需要將該黏著劑層中的架橋密度設計較 低。如此則黏著劑層本身的強度降低，而有使耐久性惡化 之問題。 201209117 因此，於專利文獻2〜4,代替降低黏著劑層的架橋密 度，藉由將可塑劑、流動石冑、氨㈣性體等添加於 酸系黏著劑，適度地使所得之黏著劑組合物變的柔軟 予黏著劑層應力緩和性，而欲藉此得到耐漏光性及耐久性。 [先行技術文獻] [專利文獻] [專利文獻1 ]日本特開2006-235568號公報 [專利文獻2]日本特開平5-4551 7號公報 [專利文獻3]日本特開平9-1 37143號公報 [專利文獻4]日本特開2005-1 94366號公報 【發明内容】 [發明所欲解決的課題] 但是，添加可塑劑或流動石職之黏著劑組合物 之黏著劑層，有因經時釋出可塑劑或流動石腹之難點。藉 此，成為破著體之液晶胞被汚染等，發生各式各樣的問題日 加氨㈣性體之黏著劑组合物，欲維持相溶 氮酉曰彈性體的添加量的上限有所限 善並不充分。再者，為提升岸…應力緩和性的改 w. 為袄升應力緩和性而增加氨酯彈性體 的添加量，則盥石，咕么# w !土莊 、/、丙烯酸系黏者劑之相溶性 白濁等的問題。如此地，以先前的技術，由光學：二生 ^…物㈣成之黏著劑層很難由根本 及耐久性。 ’、呵馮先性 本發明，係有鑑於如此之實狀而完成者，以提供使用 201209117 於偏光板等的光學構件時，财漏歧與耐久性的雙方均優 良的黏著性组合物、黏著劑及黏著板片為目標。 [用以解決課題的手段] 為達成上述目標，第1，本發明提供一種黏著性組合 物，包含：質量平均分子量為100萬〜250萬之第i(甲基） 丙烯酸酯共聚物（A);質量平均分子量為2萬〜15萬之第 2(甲基）丙烯酸酯共聚物;異氰酸酯類架橋劑（c广及矽 烷偶合劑（D)，其特徵在於：上述第2(甲基）丙烯酸酯共聚 物（Β)對上述第ι(甲基）丙烯酸酯共聚物（Α)1〇〇質量部之 比例為10〜30質量部，上述第丨（曱基）丙烯酸酯共聚物（Α) 包含具有羧基作為反應性官能基之單體作為構成成分，並 且，具有上述羧基之單體之比例，在於該當第丨（甲基）丙 烯酸酯共聚物（A)中為2.0〜6.0質量％，上述第2(甲基）丙 烯酸酯共聚物（B) ’包含具有羥基作為反應性官能基之單體 作為構成成分，並且，具有上述羥基之單體之比例，在於 該當第2(甲基）丙烯酸酯共聚物（B)中為ι〇.〇〜2〇.〇質量 % ’上述異氰酸酯類架橋劑（C)之含量，係該當異氰酸酯類 架橋劑（C)所具有之架橋性基對在於上述第2(甲基）丙烯酸 醋共聚物（B)之上述羥基之量成0.3〜0.9當量之量（發明 1)〇 在使關於上述發明（發明1)之黏著性組合物架橋之黏 著劑，於先前係以可塑劑性使用之低分子量共聚物（B)，藉 由化學性的架橋形成三次元網狀構造。然後，藉由對該三 次元網狀構造插入複數高分子量的共聚物（A)，將高分子量 201209117 的共聚物（A)相互拘纟，於高分子量的共聚物⑴間形成假 f生的架橋構&。藉此’所得黏著劑（次，可發揮適當的團聚 力與優良的應力緩和性。藉由使用該具有優良應力緩和性 之黏著劑，適用於偏光板等的光學構件時可得耐漏光性 及耐久性的雙方均優良的黏著板片。 在於上述發明（發明丨），在於上述黏著性組合物中之 上述第2(甲基)丙#酸酯#聚物⑻之具有羥基之單體之含 量對在於上述黏著性組合物中之上述帛】(甲基)丙烯酸酯 共聚物（A)之具有羧基之單體之含量之比例，以莫耳比為 〇.3~0.9為佳（發明2)。 在於上述發明（發明U)，上述異氰酸酯類架橋劑（c) 之含量，對上述第2(曱基）丙烯酸酯共聚物（Β) 100質量部 以成7.5〜26質量部之量為佳（發明g)。 第2，本發明提供一種黏著劑，其係架橋上述黏著性 組合物（發明1〜3)而成（發明4)。 在於上述發明（發明4)，於製造後以23°C，50%RH之 條件下保官7天時的凝膠分率以5〇〜8〇%為佳（發明5)。 第3,本發明提供一種黏著板片，其包含：基材；及 黏著劑層，其特徵在於：上述黏著劑層，係由上述黏著劑（發 明4、5)所組成（發明6)。 在於上述發明（發明6)，上述基材，以光學構件為佳（發 明7)。 第4，本發明提供一種黏著板片，其係包含：2片剝離 板片，及黏著劑層’其係接於上㉛2片剝離板片之剝離面 201209117 係由上述黏著劑 地挾持於上述剝離板片，上述黏著劑層 (發明4, 5)所組成（發明8)。 [發明效果] 在使關於本發明之係黏著性組合物架橋之黏著 前係以作為可塑劑使用之低分子量之聚合物形成化學性的 架橋之二次元網狀構造。然後’ #由對該三次元網狀構造 插入複數高分子量的共聚物’將高分子量的共聚物相互拘 束，於高分子量.的共聚物間形成假性的架橋構造。藉此， 所得黏著劑，可發揮適切的團聚力與優良的應力緩和性。 藉由使用具有該優良的應力緩和性之黏著劑適用於偏光 板等的光學構件時，可得耐漏光性及耐久性的雙方均優良 的黏著板片。 【實施方式】 以下，說明關於本發明之實施形態。 〔黏著性組合物〕 關於本實施形態之黏著性組合物，包含：質量平均分 子量為100萬〜250萬之第1(甲基）丙烯酸酯共聚物（A);質 量平均分子量為2萬〜15萬之第2(曱基）丙烯酸酿共聚物 (B);異氰酸酯類架橋劑（C);及矽烷偶合劑（D)。再者，在 於本說明書，所謂（甲基）丙烯酸酯，係指丙烯酸酯及曱基 丙烯酸酯之雙方之意思。其他的類似用語亦相同。 第1(曱基）丙烯酸酯共聚物（A)’構成成分包含具有羧 基作為反應性官能基支卓體（含有幾基之單體）’其含有幾· 201209117 基之單體之比例，在該當第1 (甲基）丙烯酸酯共聚物（A)中 為2. 0~6. 0質量％。 另一方面，第2(曱基）丙烯酸酯共聚物（B)，構成成分 包含具有羥基作為反應性官能基之單體（含有羥基之單 體），其含有羥基之單體之比例，在該當第2(曱基）丙烯酸 酯共聚物（B)中為1〇. 〇〜20. 0質量％。 第1 (甲基）丙烯酸酯共聚物（A)，以酯部分之烷基之碳 數為1〜20之（甲基）丙烯酸酯，與含有羧基之單體，及根據 所期望使用之其他單體之共聚物為佳，第2(曱基）丙烯酸 醋共聚物（B)，以酯部分之烷基之碳數為1〜20之（甲基）丙 稀酸醋’與含有羥基之單體，及根據所期望使用之其他單 體之共聚物為佳。 酿部分的院基的碳數1〜2 0之（甲基）丙烯酸酯，可舉例 如（曱基）丙烯酸甲酯、（曱基）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、（曱基）丙 烯酸己酯、（曱基）丙烯酸環己酯、（曱基）丙烯酸2_乙基己 酉曰、（甲基）丙烯酸異辛酯、（甲基）丙烯酸癸酯、（曱基）丙 烯酸十二烷酯 '(曱基）丙烯酸肉豆蔻酯、（甲基）丙烯酸棕 櫊酯、（曱基）丙烯酸十八烷酯等。該等可以單獨使用，亦 可組合2種以上使用。 3有羧基之單體’可舉例如 '丙烯酸' 甲基丙烯酸、 且敲馬來酸' 衣康酸、檸康酸等的乙烯性不飽和羧酸。 該等可以單獨㈣，亦可組合2種以上使用。 含有羥基之單體’可舉例如、（甲基）丙烯酸2-羥基乙 201209117 酉曰、（甲基）丙烯酸2~羥基丙酯、（曱基）丙烯酸3_羥基丙 酉曰、（曱基）丙烯酸羥基丁酯、（曱基）丙烯酸3_羥基丁 酿、（甲基）丙稀酸4~羥基丁酯等的（曱基）丙烯酸羥基烷基 酿等。該等可以單獨使用，亦可組合2種以上使用。 再者’上述其他的單體，可舉例如（曱基）丙烯酸環己 醋等的具有脂肪族環之（甲基）丙烯酸酯；（甲基）丙烯酸笨 基酉曰等的具有芳香族環之（曱基）丙烯酸酯；丙烯醯胺、曱 基丙烯醯胺等的非架橋性之丙烯醯胺；苯乙烯、醋酸乙烯 酉曰等。該等可以單獨使用，亦可組合2種以上使用。 如上所述’第丨（甲基）丙烯酸酯共聚物（A)包含含有羧 基之單體作為構成成分。包含含有羧基之單體，則該羧基 與石夕烧偶合劑（D)之烷氧基矽基等反應，可調整第丨（甲基） 丙稀酸醋共聚物（A)之團聚之程度，可得所期望的接著性。 此外’含有叛基之單體，促進第2(甲基）丙烯酸酯共聚物 (B)與異氰酸酯類架橋劑（c)之反應，另一方面，由於羧基 與異氰酸酯類架橋劑（C)之反應性較第2(曱基）丙烯酸酯共 聚物（B)所具有之羥基低，故無法避免第2(甲基）丙烯酸酯 共聚物（B)與異氰酸酯類架橋劑（c)之反應，因此，推測可 藉由異氰酸酯類架橋劑（C)所架橋之第2(甲基）丙烯酸酯共 聚物（B)得到三次元網狀構造。 在於第1(甲基）丙稀酸酯共聚物（A)之含有缓基之單體 之含有比例為2. 0〜6. 0質量％，以3. 0~5. 0質量％為佳。含 有缓基之單體之含量未滿2.0質量％，則有耐久性不充分之 情形。另一方面’含有羧基之單體之含量高過6. 〇質量％， 201209117 則第1(甲基）丙烯酸酯共聚物（A)過度團聚，而有無法得到 所期望的應力緩和性之虞。 第1(甲基）丙烯酸酯共聚物（A)，為不妨礙第2(甲基） 丙烯酸酯共聚物（B)與異氰酸酯類架橋劑（〇之反應，不含 有與異氰酸酯系架橋劑（C)之反應性較羧基高的官能基，例 如於構成成分具有羥基’硫醇基等之單體為佳。惟，假設 包含具有與異氰酸酯類架橋劑（C)之反應性較羧基高的官 施基之單體時’於分子内具有該當反應性高的官能基之單 體之含量，於共聚物（A )中以1質量％以下為佳，特別是以 〇· 5質量％以下為佳。該當單體之含量超過！質量％，則有 阻礙應優先反應之第2(曱基）丙烯酸酯共聚物（B)與異氰酸 酯類架橋劑（C)之反應之虞。 在於本實施形態，上述第1(甲基）丙烯酸酯共聚物 (A)，可單獨使用1種，亦可組合2種以上使用。 第1(甲基）丙烯酸酯共聚物（A)之質量平均分子量係 1〇〇萬〜250萬，以120萬〜200萬為佳。即，第1(曱基）丙 烤酸酯共聚物（A)，係高分子量高分子成分《再者，在於本 說明書之質量平均分子量，係以凝膠滲透層析（GPC)法測定 以聚苯乙烯換算之值。 可推測藉由使第1 (甲基）丙烯酸酯共聚物（A)之質量平 均分子量在上述範圍内，複數該當第1 (曱基）丙烯酸酯共 聚物（A)充分被拘束於第2(曱基）丙烯酸酯共聚物（B)所形 成之二次元網狀構造中，形成共聚物（A)相互之間不伴隨化 學性鍵結之假性架橋構造。藉此，對所得黏著劑，付與優 201209117 良的應力緩和性’而成耐漏光性優良者。此外，由於所得 黏著劑藉由該當假性的架橋構造具有適當的團聚力，故 與被著體之密著性，及於高熱濕熱條件下之接著对久性 變充分，可防止浮起或剝落等。 在此，第u曱基）丙烯酸酯共聚物（A)之質量平均分子 里未滿1 00萬，貝，丨（A)成分之團聚力降低，耐久性及重製性 有變差之虞。此外’第i(甲基）丙烯酸醋共聚物（A)之質量 平均刀子量超2 5 0萬，則所得黏著劑變的過硬，有無法 得到所期望之應力緩和性之虞。 另方面，第2(甲基）丙烯酸酯共聚物（b)，包含含有 羥基之單體作為構成成分。羥基，由於與異氰酸酯類架橋 劑（〇之反應性較第丨（甲基）丙烯酸醋共聚物（a)所具有之 羧基高，故可推測優先與異氰酸醋類架橋劑（C)反應，經由 該當架橋劑（C)形成三次元網狀構造。 在於第2(曱基）丙烯酸酯共聚物（B)之含有羥基之單體 之含有比例為10.0~20·0質量％，以1217質量％為佳。藉 由以上述範圍包含含有經基之單體，使第2(甲基）丙稀酸 醋共聚物⑻之架橋程度變佳，在與第】(甲基)丙稀酸酯共 聚物U)之組合，使所得黏著劑之應力緩和性變優良。此 外，含有經基之單體之含量在1().〇質量％以下，則第2(甲 基）丙烯酸醋共聚物⑻之架橋並不充分，因此會降低财久 性。另一方面，含有羥基之單體之含量超過20 0質量％， 則第2(曱基)丙#酸酯4聚物⑻之架㈣的Μ，因此有 降低對被著體之黏貼適性之虞。 201209117 此外’第2(曱基）丙烯酸酯共聚物（B)，雖不包含與異 氰酸醋類架橋劑（C)之反應性較羥基低之官能基，例如具有 叛基、磺醯基等之單體（含有低反應性官能基之單體）作為 構成成分特別佳，為包含含有低反應性官能基之單體作為 構成成分時’含有以含有羥基之單體之含量之1/5以下的 量’特別是以1/10以下的量為佳。 在於本實施形態，共聚物（B)中的含有低反應性官能基 之單體過多’則在藉此形成之三次元網狀構造體内亦殘存 夕量低反應性官能基’可推測將使該當三次元網狀構造體 與共聚物（A)之相溶性產生變化。結果，共聚物對三次 元網狀構造體内之插入變的不充分，有使所得黏著劑之耐 久性惡化之情形，再者有使霧度值上升之情形。此外，殘 存多量低反應性官能基之三次元網狀構造體，可推測將過 度限制對此插入之共聚物（A)之可動性❹結果，有使所得黏 者劑之應力緩和性惡化之情形。 另一方面’矽烷偶合劑（D)’與第ι(甲基）丙烯酸酯共 聚物（A)之羧基反應，與高分子量的第丨（曱基）丙烯酸酯共 聚物（A)鍵結’推測較可使所得黏著劑與被著體之玻璃基板 等之役著性優良。但是’第2(甲基）丙烯酸酯共聚物（…過 剩包含含有低反應性官能基之單體，則矽烷偶合劑（D)之烷 氧基矽基等，亦與第2(甲基）丙烯酸酯共聚物（B)之低反應 性g此基（特別是幾基）反應，推測與低分子量之第2 (曱基） 丙烯酸酯共聚物（B)鍵結者。結果，所得黏著劑與被著體之 玻璃基板等之密著性變的較差，因此會降低黏著劑層之耐 12 201209117 久性。 此外，第2(曱基）丙烯酸酯共聚物（B)之含有經基之單 體，對在關於本實施形態之黏著性組合物中之第i ( f A ) 丙烯酸酯共聚物（A)之含有羧基之單體之含量，於該當黏著 性組合物中之含量之比率（含有羥基之單體含量/含有緩基 之單體含量）’以莫耳比以0.3--0.9為佳，特別是以〇 5〜〇 8 為佳。 上述比例過小，則相較於共聚物（B)之羥基，共聚物（A ) 之羧基之比例變過多’而阻礙該當羥基與異氰酸酯類架橋 劑（C)之反應’有使所得黏著劑之耐久性惡化之情形。此 外’共聚物（A)之羧基之量以絶對量變的過多，有使所得黏 著劑之重製性惡化之情形。 另一方面，上述比例過大，則藉由共聚物（B)形成之三 次元網狀構造之網狀變的過細，而共聚物（A)無法充分插 人，故有使所得黏著劑之耐久性惡化，即使有插入之情形， 共聚物（A)的自由度被過度限制’有使所得黏著劑之耐漏光 性惡化之情形。此外，共聚物（A)之緩基之量以絶對量變的 過少’與石夕烧偶合劑（D)之反應變的不充分，有使所得黏著 劑之耐久性惡化之情形。 在於本實施形態，上述第2(曱基）丙烯酸酯類共聚物 (B)’可單獨使用1種’亦可組合2種以上使用。 第2(甲基）丙烯酸酯共聚物（b)之質量平均分子量為2 萬〜15萬，以5萬〜12萬為佳。即第2(甲基）丙烯酸酯共聚 物（B)，係低分子量高分子成分。 13 201209117 藉由使帛2(甲基）丙稀酸醋共聚物⑻之質量平均分子 量在上述_ ’可形成關於本實施形態之黏著性組合物 特有之三次S網狀構造，可付與優良的應力緩和性。即第 2(甲基）丙晞酸a旨共聚物⑻之質量平均分子量未滿2萬， 則無法得到良好的三次元網狀構造。另一方面，第2(甲基) 丙浠酸醋共聚物⑻之質量平均分子量超過以萬，相溶性 降低，共聚物（A)與共聚物⑻不容易成良好地絡合之狀 態’而難以形成目標之特有網狀構造，而成耐久性及重製 較差者。再者’使共聚物之質量平均分子量為5萬〜 萬，則由於耐漏光性亦變優良，故更佳。 第2(甲基）丙烯酸酉旨共聚物⑻對第i(甲基）丙烯酸醋 ”聚物（A ) 1 0 0質里部之比例，由耐久性的觀點為丄〇 ~ 3 〇質 量部，以17〜30 f量部為佳。再者，由耐漏光性之觀點， 該當比例以22〜28質量部特別佳。 共聚物（B)對共聚物（A)之比例變的過少，則可推測由 藉由八聚物（B )形成之二次元網狀構造所組成之假性架橋 部位變的不足。另一方面’纟聚物⑻對共聚物（A)之比例 過多，則可推測因相溶性惡化而使共聚物（A)無法充分地插 入/、t物（B)之二-人元網狀構造内，或假性架橋部位變的過 多’而限制共聚物（A)之自由度。 在於本實施形態，使用異氰酸酯類架橋劑（c)作為架橋 劑。因為該當架橋劑（c)，架橋反應溫和，羧基及羥基之反 應選擇性優良，並且所得鍵結之柔軟性亦優良。 異氰酸酯類架橋劑（C) ’係至少包含聚異氰酸酯化合物 201209117 者。聚異氰酸酯化合物 化。物，可舉例如，甲苯基二異氰酸酯、 二笨基曱院二異氰酸g旨、- ^ —τ本基二異氰酸酯等的芳香族 聚異氰酸酯；六亞甲基_ τ巷一吳氰酸酯等的脂肪族聚異氰酸 酯；異佛爾_二異氰酴萨 ,^ 、 共鼠酸酉曰、#氫二苯基曱烷二異氰酸酯等 的脂環式聚異氰酸酷笼. 乳欠自日4,及該等的雙縮尿體、三聚氰酸體； 以及乙二醇、丙二醇、新Λ 一 新戍一酵、六羥甲基丙烷' 蓖麻油 等的含有低分子活性惫之仆a c ^ 飞之化〇物之反應物之加成體等。特 別是使用六羥甲基丙烷之甲苯基二異氰酸醋(TDI)系加成 物為佳ϋ為架橋速度適於操作，亦可使所得架橋構造之 強度優良。上述架橋劑，可以〗插留描你兩 1」以1種單獨使用，亦可組合2 種以上使。 異氰酸酯類架橋劑人θ 网劑CC)之含篁’係該當架橋劑之架 橋性基（異氰酸酉旨基）對·筮9 r田甘、τ* β ;對第2(甲基）丙烯酸酯共聚物（Β)之羥 基之量成0.3〜0 9备碁··>曰 .y田里之ϊ ’以成〇. 4〜〇. 7當量之量為佳。 上述架橋I·生基之里未滿〇·3當量無法充分地進行架橋， 耐久f生較έ上述架橋性基之量超過Q· 9當量，則無法得 到所期望的應力緩和性，$ , t β 友砰f生，適用於偏光板等的光學構件時耐 漏光性較差。 異氰酸酯類架橋劑(C)之含量，對第2(曱基)丙烯酸酯 共聚物（B)100質量部成9〜28質量部之量為佳。 關於本實施形態之黏著性組合物，雖含有矽烷偶合劑 〇))，含有該碎烷偶合劑（D)，則碎院偶合劑（D)之有機反應 性基與第1(曱基）丙烯酸酯共聚物（A)之羧基反應，另一方 面矽烷偶合劑（D)之烷氧基矽基等與玻璃基板等的被著體 15 201209117 面作^ 0此’例如將偏光板黏貼於液晶玻璃胞等時，可 使黏著劑與液晶麵胞之間的密著性變佳。 該石夕烧偶合劑⑻，以於分子内至少具有i個院氧基石夕 基之有機石夕化σ物，與黏著劑成分之相溶性佳，且具有光 穿透性者’例如實質上透明者較合適。如此之钱偶合劑 (D)之添加量，對第1(甲基）丙烯酸酯共聚物（Α) 100質量部 以〇· 05 0. 5質量部為佳，特別是以〇卜〇 3質量部為佳。 矽烷偶合劑（D)之具體例，可舉乙烯基三曱氧基矽烷、 乙烯基三乙氧基錢、甲基丙稀醯氧丙基三甲氧基碎烧等 的含有聚合性不飽和基之矽化合物；3_丙烯醯氧丙三甲氧 基矽烷、2-(3, 4-環氧基帛己基)乙基三曱氧基矽烷等的具 有環氧基構造之矽化合物；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的含有胺基之矽化合 物，3氣丙基二曱氧基矽烷等。該等，可以丨種單獨使用， 亦可組合2種以上使用。 於上述黏著性組合物，可根據所期望，添加通常使用 於丙烯酸系黏著劑之各種添加劑，例如黏著付與劑、氧化 防止劑、紫外線吸彳又劑、光安定劑、軟化劑、充填劑、帶 電防止劑、折射率調整劑等。 〔黏著性組合物之製造方法〕 上述黏著性組合物，可藉由將第1 (曱基）丙烯酸醋共 聚物（A)’與第2(甲基）丙烯酸酯共聚物（B)混合的同時， 於任意階段將架橋劑（C)及矽烷偶合劑（D)而製造。 16 201209117 較佳的具體例’係將（甲基）丙烯酸酯共聚物（A)及 (B)，分別個別地以通常的自由基聚合法調製。 (甲基）丙烯酸醋共聚物（A)及（B)之聚合’可根據所期 望使用聚合起始劑，以溶液聚合法等進行。聚合溶劑可 舉例如，醋酸乙酯、醋酸正丁酯、醋酸異丁酯、甲苯、丙 _、己烷、曱乙酮等，亦可併用2種類以上。 聚合起始劑，可舉重氮系化合物、有機過氧化物等， 亦可併用2種類以上。重氮系化合物，可舉例如、2, 2, ~ 重氮雙異丁腈、2’2’-重氮雙（2-甲基丁腈）、U，—重氮雙 (%己烷1-羰腈）、2,2’-重氮雙（2,4-二曱基戊腈）、22， 重氮雙（2, 4-二甲基4-甲氧基戊腈）、二甲基2,2，一重氮雙 (2一曱基丙酸醋）、4,4’一重氮雙（4-氰基戊酸）、2,2, 一重$ 雙（2-羥基甲基丙腈）、2,2’-重氮雙[2_(2一咪唑啉_2一基） 丙烷]等。 有機過氧化物，可舉例如’過氧化笨、過氧化本甲酸 第三丁醋、過氧化氫異丙苯、：異丙基過氧碳酸醋、二正 丙基過氧板酸自曰、一 (2-乙氧基乙基)過氧碳酸酯、過氧化 新癸酸第三丁酯、過氧化戊酸第三丁醋、（3, 5, 5_三甲基已 醯）過氧化物、過氧化二丙酿、過氧化二乙酿等。 其次’將所得共聚物(A)及⑻之溶液混合，加入稀釋 溶劑。之後1架橋劑(〇及根據所期望添峨偶合劑 ⑻’充分混合’得到以溶劑稀釋之黏著性組合物(塗佈溶 液）。 稀釋黏者性組合物杰涂^士 成塗佈 >谷液之稀釋溶劑，可使用例 17 201209117 f己院4的脂肪烴、甲笨、_ 芳香烴、二氣甲烷、τ本4的 、 疋一氣乙烷等的鹵化烴、甲醇、7jr_ 丙醇、丁醇、1-甲氧某 - 醇、 Λ獅、" 氧基丙醇等的醇、丙酮、甲乙酮、2_ 戍嗣、異佛爾綱、環 - 衣己酮荨的酮、醋酸乙酷、醋酸丁輕等 的曰、乙基溶纖劑等的溶纖劑系溶劑等。 如此地調製之塗佈溶液之濃度·黏度，只要 範圍即可，並益特別ΡΡ 土層之 I "，、特別限制，可按照情況適宜選定。例如， 將黏著性組合物之濃度稀釋成1〇~40質量Ρ再者，在於r 到塗佈溶液時’稀釋溶劑等的添加並非必要條件，σ = 著性組合物為可塗層之黏度等，可不添加稀釋溶劑。此時， 黏著性組合物直接成塗佈溶液。 〔黏著劑〕 關於本實施形態之黏著劑，係將上述黏著性組合物架 橋而成者。上述黏著性組合物之架橋，可藉由加熱處理進 仃。再者，該加熱處理，亦可兼作使黏著性組合物之稀釋 溶劑等揮發時之乾燥處理。 進行加熱處理時’加熱溫度以5 〇〜15 (TC為佳，特別是 以7 0〜12 〇 c為佳。此外，加熱時間，以3 〇秒〜3分為佳， 特別疋以5 0秒〜2分為佳。再者，加熱處理後，設置以常 溫（例如’ 23t，50%RH)1〜2週間程度的固化期間特別佳。 可推測以上述加熱處理（及固化），藉由異氰酸酯類架 橋劑（C)使第2(曱基）丙烯酸酯共聚物（B)架橋，形成緻密 的二次元網狀構造。然後’可推測於該三次元網狀構造中 2分子以上的第丨（曱基）丙烯酸酯共聚物（A)不伴隨直接的 201209117 化學鍵結，或伴隨極少的化學鍵結而插入，使該當共聚物 (A)被拘束，而形成擬架橋構造。此外，第ι(甲基）丙稀酸 酯共聚物（A)具有羧基時，第丨（甲基）丙烯酸酯共聚物（A) 與矽烧偶合劑（D)反應，團聚特定程度。 以上所説明之黏著劑’可良好地使用於光學構件用， 適於例如，偏光板與位相差板之接著，或者偏光板（偏光膜） 或位相差板（位相差膜）與玻璃基板之接著。以上述黏著劑 形成之黏著劑層，由於應力緩和性非常優良，故即使是被 著體的尺寸變化很大時，可藉由黏著劑層吸収.緩和因該 尺寸變化所產生的應力，因此可長期不容易由被著體剝 洛，使用於如上所述之光學構件時，可有效地防止漏光。 即，關於本實施形態之黏著劑，係可並存耐漏光性與耐久 性之雙方者。 關於本實施形態之黏著劑，於黏著性組合物之塗佈. 乾燥後（黏著劑層形成後=黏著劑之製造後）以23〇c，5〇%別 之條件下保管7天時的凝膠分率以50〜8〇%為佳，特別是以 60 ~ 77%為佳。藉由使凝膠分率在上述範圍，可使上述黏著 眭、、’且合物之第2(甲基）丙烯酸酯共聚物（B)之架橋程度成較 佳者’所得黏著劑之應力緩和性成非常優良者。 〔黏著板片〕 如圖1所示，關於第1實施形態之黏著板片1A，係由 下面依序’由剝離板片12;層積於剝離板片12之剝離面 之點著劑層n ;及層積於黏著劑層u之基材13所構成。 此外，如圖2所示，關於第2實施形態之黏著板片J B， 19 201209117 係由2片剝離板片12a、1. π μ 2b，及接於該等2片剝離板片 a二 <剝離面而被該當2片剝離板片心、咖夾持 之黏著劑層11所構成^ a去 . 者，在於本說明書之剝離板片之 剝離面，係指於剝離板片具有剝離性之面，施有剝離處理 之面及即使未施予剝離處理即顯示剝離性之面均包含。 黏著板片1Α、1β，黏著劑層u，係由架橋上述 黏者性，，且0物而成之黏著劑所組成。 黏著劑層Π之厘疳，-Γ k 之厚度，可按照黏著板片1A、1B之使用 :的適：決定，通常為5〜10。㈣，以叫W範圍為 j /學構件’特別是使用作為偏光板用黏著劑層 時為5Mm，特別是以10〜30"為佳。 封杯並無特別限制’通常用於作為黏著板片之基 ~可使用°可舉例如，所期望之光學構件之外， 使用螺f、壓克力、聚酉旨等的繊維之織布或不織布；上質 紙、亮面紙、含浸紙、塗層紙等的紙類；、銅等的 箔；II酯發泡體、取r a v201209117 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to an adhesive composition, an adhesive (a material for bridging an adhesive composition), and an adhesive sheet, which are particularly useful for a polarizing plate. Adhesive compositions, adhesives and adhesive sheets for optical members. [Prior Art] In general, a liquid crystal panel is used in which an adhesive layer formed of an adhesive composition is used in the case where a polarizing plate or a phase difference plate is attached to a glass substrate. In the case of the optical member such as a polarizing plate or a phase difference plate, it is likely to shrink due to heat or the like, and shrinks due to the heat history. As a result, the adhesive layer laminated on the optical member cannot follow the shrinkage, and peeling occurs at the interface. (so-called squeezing, squeezing, peeling) and the problem that the optical member is shifted by the optical axis when the optical member is contracted to cause light leakage (so-called white point). (1) A method of suppressing shrinkage by adhering an adhesive layer having high adhesion and excellent form stability to an optical member optical member such as a polarizing plate; or (2) using an optical member A method of stressing a layer of adhesive with a small stress. (1) The method is as described in the patent document (it is effective to use an adhesive layer having a high elastic modulus of storage. On the other hand, the method is effective in using an adhesive layer which is soft and elastically compatible with the deformation of the optical member. However, when it is desired to form such an adhesive layer excellent in stress relaxation, it is necessary to design a lower bridge density in the adhesive layer. Thus, the strength of the adhesive layer itself is lowered, and the durability is deteriorated. 201209117 Therefore, in Patent Documents 2 to 4, instead of reducing the bridging density of the adhesive layer, a plasticizer, a mobile sarcophagus, an ammonia (tetra) or the like is added to the acid-based adhesive, and the resulting adhesive is appropriately combined. The softness of the material is imparted to the stress relaxation of the adhesive layer, and the light leakage resistance and the durability are obtained. [Provisional Literature] [Patent Document] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2006-235568 [Patent Document 2 Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. [Problem] However, the addition of a plasticizer or an adhesive layer of a mobile stone adhesive composition may cause difficulty in releasing a plasticizer or a flowing stone belly over time, thereby causing contamination of the liquid crystal cell of the broken body. There are various problems in the daily application of an ammonia (tetra) viscous adhesive composition, and it is not sufficient to maintain the upper limit of the amount of the added nitrogen cerium elastomer. Further, in order to enhance the shore... stress relaxation Sexual change w. In order to increase the amount of urethane elastomer added to the stress relaxation, the problem is that the meteorite, 咕 # w 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 According to the prior art, the adhesive layer formed by the optical: two raw materials (four) is difficult to be fundamentally and durable. ', 呵冯先性 The invention is completed in view of such a real thing, to provide When using an optical member such as a polarizing plate in 201209117, an adhesive composition, an adhesive, and an adhesive sheet which are both excellent in both leakage and durability are targeted. [Means for Solving the Problem] In order to achieve the above objective, 1, the present invention provides an adhesive combination And comprising: an i-th (meth) acrylate copolymer (A) having a mass average molecular weight of 1,000,000 to 2.5 million; a second (meth) acrylate copolymer having a mass average molecular weight of 20,000 to 150,000; isocyanate a bridging agent (c) and a decane coupling agent (D) characterized by the quality of the above (meth) acrylate copolymer (Β) to the above (meth) acrylate copolymer (Α) The ratio of the portion is 10 to 30 parts by mass, and the above-mentioned fluorenyl (meth) acrylate copolymer (Α) contains a monomer having a carboxyl group as a reactive functional group as a constituent component, and a ratio of a monomer having the above carboxyl group, In the case where the second (meth) acrylate copolymer (A) is 2.0 to 6.0% by mass, the second (meth) acrylate copolymer (B) ' contains a monomer having a hydroxyl group as a reactive functional group. The composition of the component, and the ratio of the monomer having the above hydroxyl group is such that the second (meth)acrylate copolymer (B) is ι〇.〇2〇.〇% by mass% of the above isocyanate bridging agent (C) The content of the isocyanate bridging agent C) The bridging base pair is that the amount of the above-mentioned hydroxyl group of the second (meth)acrylic acid vinegar copolymer (B) is 0.3 to 0.9 equivalents (Invention 1). In the above invention (Invention 1) Adhesive composition bridging adhesive, a low molecular weight copolymer (B) previously used as a plasticizer, to form a three-dimensional network structure by chemical bridging. Then, by inserting a plurality of high molecular weight copolymers (A) into the three-dimensional network structure, the copolymer (A) having a high molecular weight of 201209117 is mutually restrained, and a bridge of pseudo-f raw is formed between the high molecular weight copolymers (1). Construction & By using the obtained adhesive (the second, the appropriate agglomeration power and excellent stress relaxation can be exerted. By using the adhesive having excellent stress relaxation property, it is possible to obtain light leakage resistance when applied to an optical member such as a polarizing plate. The adhesive sheet which is excellent in both of the durability is the content of the monomer having a hydroxyl group of the second (meth) propyl # ester # (8) in the above adhesive composition. The ratio of the content of the monomer having a carboxyl group of the above (meth) acrylate copolymer (A) in the above adhesive composition is preferably from 3 to 0.9 in terms of a molar ratio (Invention 2). In the above invention (Invention U), the content of the isocyanate-based bridging agent (c) is preferably 7.5 to 26 parts by mass based on 100 parts by mass of the second (fluorenyl) acrylate copolymer (Β). Inventive g). Second, the present invention provides an adhesive which is obtained by bridging the above adhesive composition (Inventions 1 to 3) (Invention 4). The invention (Invention 4) is 23 ° C after the production. Under the condition of 50% RH, the gel fraction of the official 7 days is 5〇~8〇 % is preferable (Invention 5). Third, the present invention provides an adhesive sheet comprising: a substrate; and an adhesive layer, wherein the adhesive layer is made of the above adhesive (Inventions 4, 5) According to the invention (Invention 6), the substrate is preferably an optical member (Invention 7). Fourth, the present invention provides an adhesive sheet comprising: two peeling sheets, And the adhesive layer 'the peeling surface 201209117 which is attached to the upper 312 peeling sheets is held by the above-mentioned adhesive sheet to the above peeling sheet, and the above adhesive layer (Invention 4, 5) is composed (Invention 8). EFFECTS OF THE INVENTION The chemically bridged secondary mesh structure is formed by using a low molecular weight polymer used as a plasticizer before the adhesion of the adhesive composition of the present invention is bridged. The mesh structure is inserted into a plurality of high molecular weight copolymers' to bind the high molecular weight copolymers to each other to form a pseudo bridge structure between the high molecular weight copolymers, whereby the resulting adhesive can exhibit suitable agglomeration and excellent properties. Stress relief When an adhesive having such excellent stress relaxation property is used for an optical member such as a polarizing plate, an adhesive sheet excellent in both light leakage resistance and durability can be obtained. [Embodiment] Hereinafter, the present invention will be described. [Adhesive Composition] The adhesive composition of the present embodiment comprises a first (meth) acrylate copolymer (A) having a mass average molecular weight of 1,000,000 to 2.5 million; and a mass average molecular weight. The second (mercapto) acrylic styrene copolymer (B) of 20,000 to 150,000; the isocyanate bridging agent (C); and the decane coupling agent (D). Furthermore, in the present specification, the so-called (meth)acrylic acid Ester refers to both acrylate and methacrylate. Other similar terms are the same. The first (indenyl) acrylate copolymer (A)' constituent component contains a ratio of a monomer having a carboxyl group as a reactive functional group (a monomer having several groups) which contains a monomer of 201209117, in which 0质量质量。 The first (meth) acrylate copolymer (A) is 2. 0~6. 0% by mass. On the other hand, the second (fluorenyl) acrylate copolymer (B), the constituent component comprising a monomer having a hydroxyl group as a reactive functional group (a monomer having a hydroxyl group), and a ratio of a monomer having a hydroxyl group, 0质量质量。 In the second (fluorenyl) acrylate copolymer (B) is 1 〇. 〇 ~ 20. 0% by mass. The first (meth) acrylate copolymer (A), a (meth) acrylate having a carbon number of the alkyl group of the ester moiety of 1 to 20, a monomer having a carboxyl group, and other monomers as desired The copolymer of the body is preferably a second (mercapto)acrylic acid vinegar copolymer (B), a (meth)acrylic acid vinegar having a carbon number of the alkyl group of the ester moiety of 1 to 20 and a monomer having a hydroxyl group And copolymers of other monomers depending on the desired use. The (meth) acrylate having a carbon number of 1 to 20 in the brewing portion may, for example, be methyl (mercapto) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, or (methyl) ) butyl acrylate, amyl (meth) acrylate, hexyl (meth) acrylate, cyclohexyl (decyl) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate Ester, decyl (meth) acrylate, dodecyl (mercapto) acrylate (myristyl) myristate, (meth) acrylate, octadecyl (decyl) acrylate, and the like. These may be used alone or in combination of two or more. The monomer having 3 carboxyl groups may, for example, be an ethylenically unsaturated carboxylic acid such as 'acrylic acid' methacrylic acid or knocked with maleic acid' itaconic acid or citraconic acid. These may be used alone (four) or in combination of two or more. The monomer having a hydroxyl group can be, for example, 2-hydroxyethyl (meth)acrylate 201209117, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, or mercapto. A hydroxyalkyl (meth) acrylate such as hydroxybutyl acrylate, (meth)acrylic acid 3-hydroxybutyrate, or (meth)acrylic acid 4-hydroxybutylate. These may be used alone or in combination of two or more. Further, the above-mentioned other monomer may, for example, be an aliphatic ring-containing (meth) acrylate such as (mercapto)acrylic acid cyclohexanoic acid or the like, or an aromatic ring such as (meth)acrylic acid. (fluorenyl) acrylate; non-branching acrylamide such as acrylamide, mercapto acrylamide; styrene, vinyl acetate oxime, and the like. These may be used alone or in combination of two or more. As described above, the 'deuterium (meth) acrylate copolymer (A) contains a monomer having a carboxyl group as a constituent component. When a monomer having a carboxyl group is contained, the carboxyl group is reacted with an alkoxy fluorenyl group of the sulphur coupling agent (D), and the degree of agglomeration of the bis(methyl) acrylate copolymer (A) can be adjusted. The desired adhesion can be obtained. In addition, 'containing a repellent monomer, promoting the reaction of the 2 (meth) acrylate copolymer (B) with the isocyanate bridging agent (c), on the other hand, due to the reaction of the carboxyl group with the isocyanate bridging agent (C) The reactivity of the second (meth) acrylate copolymer (B) is lower than that of the second (meth) acrylate copolymer (B), so that the reaction of the second (meth) acrylate copolymer (B) with the isocyanate bridging agent (c) cannot be avoided. It is presumed that a third-dimensional network structure can be obtained by the second (meth) acrylate copolymer (B) bridged by the isocyanate bridging agent (C). 0质量质量。 Preferably, the first (meth) acrylate copolymer (A), the content of the content of the monomer is 2. 0~6. 0% by mass, preferably 3. 0~5. When the content of the monomer containing a slow group is less than 2.0% by mass, the durability may be insufficient. On the other hand, the content of the monomer having a carboxyl group is higher than 6. 〇 mass%, 201209117, the first (meth) acrylate copolymer (A) is excessively agglomerated, and the desired stress relaxation property cannot be obtained. The first (meth) acrylate copolymer (A) does not interfere with the reaction of the second (meth) acrylate copolymer (B) with an isocyanate bridging agent (〇, does not contain an isocyanate bridging agent (C) The functional group having a higher reactivity than the carboxyl group is preferably, for example, a monomer having a hydroxy 'thiol group or the like as a constituent component. However, it is assumed that a host having a reactivity with an isocyanate-based bridging agent (C) is higher than that of a carboxyl group. In the monomer, the content of the monomer having a functional group having high reactivity in the molecule is preferably 1% by mass or less, particularly preferably 5% by mass or less, based on the copolymer (A). When the content of the monomer exceeds % by mass, there is a reaction between the second (fluorenyl) acrylate copolymer (B) and the isocyanate-based bridging agent (C) which are preferentially reacted. In the present embodiment, the first The (meth) acrylate copolymer (A) may be used singly or in combination of two or more. The mass average molecular weight of the first (meth) acrylate copolymer (A) is from 1 to 10,000 to 250. 10,000, preferably 1.2 million to 2 million. That is, the first (mercapto) propene acid The copolymer (A) is a high molecular weight polymer component. Further, the mass average molecular weight in the present specification is a value measured by a gel permeation chromatography (GPC) method in terms of polystyrene. The mass average molecular weight of the (meth) acrylate copolymer (A) is in the above range, and the first (mercapto) acrylate copolymer (A) is sufficiently restricted to the second (fluorenyl) acrylate copolymer. (B) In the formed secondary network structure, a pseudo bridge structure in which the copolymer (A) is not chemically bonded to each other is formed. Thereby, the obtained adhesive is provided with a good stress relief of 201209117 The property is excellent in light leakage resistance. In addition, since the obtained adhesive has an appropriate agglomeration force by the pseudo bridge structure, the adhesion to the object and the high heat and humidity conditions are followed by a long time. Sexually sufficient to prevent floating or flaking, etc. Here, the mass average molecular molecule of the (u)-based acrylate copolymer (A) is less than 100,000, and the agglomeration force of the shellfish and the cerium (A) component is lowered. Durability and reworkability are worseFurther, the mass of the i-th (meth)acrylic acid vinegar copolymer (A) is more than 250,000, and the obtained adhesive becomes too hard, and the desired stress relaxation property cannot be obtained. On the other hand, the second (meth) acrylate copolymer (b) contains a monomer having a hydroxyl group as a constituent component. The hydroxyl group is more reactive with the isocyanate-based bridging agent (C) because it has higher reactivity with the isocyanate-based bridging agent (〇) than the carboxyl group of the 丨(meth)acrylic acid vinegar copolymer (a). A three-dimensional network structure is formed by the bridging agent (C). The content of the hydroxyl group-containing monomer of the second (fluorenyl) acrylate copolymer (B) is from 10.0 to 20% by mass, and is 1217 mass%. Preferably, the degree of bridging of the second (meth)acrylic acid vinegar copolymer (8) is improved by including a monomer having a warp group in the above range, and copolymerizing with the (meth)acrylic acid ester The combination of U) makes the stress relaxation property of the obtained adhesive excellent. Further, when the content of the monomer containing a radical is 1 (%) by mass or less, the bridging of the second (meth)acrylic acid vinegar copolymer (8) is insufficient, so that the long-term property is lowered. On the other hand, when the content of the monomer having a hydroxyl group exceeds 20% by mass, the crucible of the second (fluorenyl) propionate 4-ester (8) can reduce the adhesion to the object. . 201209117 In addition, the '2nd (fluorenyl) acrylate copolymer (B) does not contain a functional group having a lower reactivity with the isocyanate-based bridging agent (C) than the hydroxyl group, and has, for example, a thiol group or a sulfonyl group. The monomer (a monomer having a low-reactivity functional group) is particularly preferable as a constituent component, and when a monomer containing a low-reactive functional group is used as a constituent component, the content of the monomer containing a hydroxyl group is 1/5 or less. The amount 'is particularly preferably 1/10 or less. In the present embodiment, if the monomer having a low-reactivity functional group in the copolymer (B) is too large, the remaining low-reactivity functional group in the three-dimensional network structure formed thereby may be presumed to be The compatibility of the three-dimensional network structure with the copolymer (A) changes. As a result, the insertion of the copolymer into the three-dimensional network structure is insufficient, and the durability of the obtained adhesive is deteriorated, and the haze value is increased. Further, in the three-dimensional network structure in which a large amount of a low-reactivity functional group remains, it is presumed that the mobility of the copolymer (A) to be inserted is excessively restricted, and the stress relaxation property of the obtained adhesive agent is deteriorated. . On the other hand, the 'decane coupling agent (D)' reacts with the carboxyl group of the (meth) acrylate copolymer (A), and is bonded to the high molecular weight fluorenyl (meth) acrylate copolymer (A). The adhesion between the obtained adhesive and the glass substrate of the object to be coated is excellent. However, the 'second (meth) acrylate copolymer (...excessively contains a monomer having a low reactivity functional group, the alkoxy fluorenyl group of the decane coupling agent (D), etc., and the second (meth)acrylic acid The low reactivity of the ester copolymer (B), the reaction of this group (especially a few groups), is presumed to be bonded to the low molecular weight second (fluorenyl) acrylate copolymer (B). As a result, the resulting adhesive is The adhesion of the glass substrate or the like of the body is poor, so that the durability of the adhesive layer is reduced to 12 201209117. Further, the second (fluorenyl) acrylate copolymer (B) contains a monomer having a base group. The ratio of the content of the carboxyl group-containing monomer of the i-th (f A ) acrylate copolymer (A) in the adhesive composition of the present embodiment to the content of the adhesive composition (containing a hydroxyl group) The monomer content/monomer content containing a buffer base) is preferably from 0.3 to 0.9 in terms of molar ratio, particularly preferably from 5 to 〇 8. The above ratio is too small, compared to the copolymer (B). Hydroxy, the proportion of the carboxyl group of the copolymer (A) becomes too large' and hinders the hydroxyl group and the isocyanate The reaction of the bridge (C) may deteriorate the durability of the obtained adhesive. Further, the amount of the carboxyl group of the copolymer (A) may be excessively increased in absolute amount, which may deteriorate the reproducibility of the obtained adhesive. On the other hand, if the above ratio is too large, the network of the three-dimensional network structure formed by the copolymer (B) becomes too fine, and the copolymer (A) cannot be sufficiently inserted, so that the durability of the obtained adhesive is obtained. Deterioration, even in the case of insertion, the degree of freedom of the copolymer (A) is excessively limited to the case where the light leakage resistance of the obtained adhesive is deteriorated. Further, the amount of the retardation of the copolymer (A) becomes too small in absolute amount. 'The reaction with the Shiki simmering coupler (D) is insufficient, and the durability of the obtained adhesive is deteriorated. In the present embodiment, the second (fluorenyl) acrylate copolymer (B)' One type may be used alone or two or more types may be used in combination. The mass average molecular weight of the second (meth) acrylate copolymer (b) is 20,000 to 150,000, preferably 50,000 to 120,000. (Meth) acrylate copolymer (B), a low molecular weight polymer 13 201209117 By making the mass average molecular weight of the 帛2 (meth) acrylate copolymer (8) in the above-mentioned _ ', it is possible to form a three-dimensional S-network structure unique to the adhesive composition of the present embodiment, and it is possible to pay Excellent stress relaxation property. When the mass average molecular weight of the second (meth)propionate copolymer (8) is less than 20,000, a good three-dimensional network structure cannot be obtained. On the other hand, the second (methyl group) The propylene carbonate copolymer (8) has a mass average molecular weight of more than 10,000, a decrease in compatibility, and a state in which the copolymer (A) and the copolymer (8) are not easily complexed together, and it is difficult to form a specific network structure of the target. In addition, the durability and the remanufacturing are inferior. Further, the copolymer has a mass average molecular weight of 50,000 to 10,000, which is preferable because the light leakage resistance is also excellent. The ratio of the second (meth)acrylic acid-based copolymer (8) to the inner portion of the i-th (meth)acrylic acid vinegar "polymer (A) 1000, from the viewpoint of durability is 丄〇~3 〇 mass portion, It is preferably in the range of 17 to 30 f. Further, from the viewpoint of light leakage resistance, the ratio is particularly preferably 22 to 28 parts by mass. When the ratio of the copolymer (B) to the copolymer (A) is too small, It is presumed that the pseudo bridging portion composed of the secondary network structure formed by the octamer (B) is insufficient. On the other hand, if the ratio of the copolymer (8) to the copolymer (A) is too large, it is presumed that The compatibility is deteriorated, and the copolymer (A) cannot be sufficiently inserted into the two-human network structure of the t material (B), or the pseudo bridge bridging portion becomes excessive, and the degree of freedom of the copolymer (A) is restricted. In the present embodiment, the isocyanate bridging agent (c) is used as a bridging agent. Because of the bridging agent (c), the bridging reaction is mild, the reaction selectivity of the carboxyl group and the hydroxyl group is excellent, and the flexibility of the resulting bond is also excellent. The type of bridging agent (C) ' is at least a polyisocyanate compound 201209117. The isocyanate compound may, for example, be an aromatic polyisocyanate such as tolyl diisocyanate, diphenyl sulfonium diisocyanate, or -^-t-butyl diisocyanate; hexamethylene _ τ lane An aliphatic polyisocyanate such as ruthenium phthalate; an alicyclic polyisocyanate cage such as isophorol-diisocyanine, ^, yttrium citrate, #hydrodiphenyldecane diisocyanate. Milk owes from day 4, and these double urethral, cyanuric acid; and ethylene glycol, propylene glycol, fresh sputum, hexamethylolpropane, castor oil, etc.仆 serv ac ^ Addition of reactants of fly phlegm, etc. In particular, the use of hexamethylolpropane toluene diisocyanate (TDI)-based adduct is preferred for bridging speed The operation can also make the resulting bridge structure strong in strength. The above-mentioned bridging agent can be inserted and left as one or two, or one or two or more. The isocyanate bridging agent θ 网 剂 CC CC 系 系 系 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 架 架 架 架 架 该 该 该 该 该 该 该 r r r r r r r The amount of the hydroxyl group of the ester copolymer (Β) is 0.3~0 9 碁··> 曰.y 田 ϊ ϊ ' 〇 〇 4 4 4 4 4 4 4 4 4 4 4 4 4 4 7 7 7 7 7 7 7 7 7 7 7 The bridge I and the base are not full of 〇·3 equivalents, and the bridge cannot be sufficiently bridged. If the amount of the bridging base exceeds Q·9 equivalent, the desired stress relaxation property cannot be obtained, $, t β 砰 砰 , , , , , , , , , , , , , , , , , , , , , The content of the isocyanate-based bridging agent (C) is preferably from 9 to 28 parts by mass based on 100 parts by mass of the second (fluorenyl) acrylate copolymer (B). The adhesive composition of the present embodiment contains the decane coupling agent 〇)), and the organic reactive group of the crumb coupling agent (D) and the first (fluorenyl) acrylic acid are contained in the adhesive coupling agent (D). The carboxyl group of the ester copolymer (A) is reacted, and on the other hand, the alkoxy fluorenyl group of the decane coupling agent (D) is bonded to the surface of the glass substrate or the like 15 201209117. For example, the polarizing plate is adhered to the liquid crystal glass. When the cells are equal, the adhesion between the adhesive and the liquid crystal cell can be improved. The Shi Xi siu coupling agent (8) is an organic stone yttrium yt having at least one of the oxime groups in the molecule, and has good compatibility with the adhesive component, and is transparent, for example, substantially transparent. More suitable. The amount of such a money coupling agent (D) is preferably 100 parts by mass of the first (meth) acrylate copolymer (Α), especially the mass part of the 〇 〇 〇 3 It is better. Specific examples of the decane coupling agent (D) include a polymerizable unsaturated group such as vinyl trimethoxy decane, vinyl triethoxy ketone, or methyl propylene oxypropyl trimethoxy pulverization. Anthracene compound; anthracene compound having an epoxy group structure such as 3-acrylomethoxypropane trimethoxydecane or 2-(3,4-epoxyphosphonium)ethyltrimethoxyoxydecane; Trimethoxy decane, N-(2-aminoethyl)_3_aminopropyltrimethoxydecane, n-(2-aminoethyl)-3-aminopropylmethyldimethoxydecane An amine group-containing hydrazine compound, 3 gas propyl dimethoxy decane, or the like. These may be used alone or in combination of two or more. In the above adhesive composition, various additives generally used for the acrylic adhesive, such as an adhesive agent, an oxidation preventive agent, an ultraviolet absorbing agent, a light stabilizer, a softener, a filler, and the like, may be added as desired. Charge inhibitor, refractive index modifier, and the like. [Method for Producing Adhesive Composition] The above adhesive composition can be obtained by mixing the first (mercapto)acrylic acid vinegar copolymer (A)' with the second (meth)acrylate copolymer (B). It is produced by using a bridging agent (C) and a decane coupling agent (D) at any stage. 16 201209117 A preferred embodiment is that the (meth) acrylate copolymers (A) and (B) are individually prepared by a usual radical polymerization method. The polymerization of the (meth)acrylic acid vinegar copolymers (A) and (B) can be carried out by a solution polymerization method or the like, using a polymerization initiator as desired. The polymerization solvent may, for example, be ethyl acetate, n-butyl acetate, isobutyl acetate, toluene, propylene, hexane, acetophenone or the like, or two or more types may be used in combination. The polymerization initiator may be a heavy nitrogen compound or an organic peroxide, and two or more types may be used in combination. The diazo compound may, for example, be 2, 2, ~diazobisisobutyronitrile, 2'2'-diazobis(2-methylbutyronitrile), U,-diazobis (%hexane 1- Carbononitrile), 2,2'-diazobis(2,4-dioxyl valeronitrile), 22, diazobis(2,4-dimethyl-4-methoxyvaleronitrile), dimethyl 2 , 2, monodiazobis(2-mercaptopropionic acid vinegar), 4,4'-diazobis(4-cyanovaleric acid), 2,2, one weight of bis (2-hydroxymethylpropionitrile), 2 , 2'-diazobis[2_(2-imidazoline-2-yl)propane] and the like. The organic peroxide may, for example, be 'peroxidized stupid, peroxylated toluene formic acid, third butyl vinegar, hydrogen cumene hydroperoxide, isopropyl peroxycarbonic acid vinegar, di-n-propyl peroxy succinic acid, one (2-ethoxyethyl) peroxycarbonate, tert-butyl peroxy neodecanoate, third butyl valeric acid pentoxide, (3, 5, 5 - trimethyl sulfonium) peroxide, Dipropylene peroxide, diethoxy peroxide, etc. Next, the solutions of the obtained copolymers (A) and (8) were mixed, and a diluent solvent was added. Thereafter, 1 bridging agent (〇 and 'mixed thoroughly' according to the desired addition coupling agent (8) to obtain an adhesive composition (coating solution) diluted with a solvent. The diluted adhesive composition is coated with a coating solution. For the dilution solvent of the liquid, the halogenated hydrocarbon, methanol, 7jr_propanol, butyl, etc. of the aliphatic hydrocarbon, the stupid, the _aromatic hydrocarbon, the di-methane, the τ, the 疋, the ethane, and the like can be used. Alcohol, 1-methoxy-alcohol, lion, quot; oxypropanol, alcohol, acetone, methyl ethyl ketone, 2 戍嗣, isophora, ketone of cyclohexanone oxime, acetic acid, acetic acid A cellosolve such as hydrazine or a cellosolve such as ethyl cellosolve is a solvent. The concentration and viscosity of the coating solution prepared as described above may be as long as the range, and the I " The limitation can be appropriately selected according to the circumstances. For example, the concentration of the adhesive composition is diluted to 1 〇 to 40 Ρ, and the addition of the dilution solvent is not necessary when r is applied to the coating solution, σ = dominant combination The material is a coatable viscosity, etc., without adding a dilution solvent. At this time, the adhesion group The adhesive is directly applied to the coating solution. [Adhesive] The adhesive of the present embodiment is obtained by bridging the above-mentioned adhesive composition. The bridging of the adhesive composition can be carried out by heat treatment. This heat treatment may also serve as a drying treatment for volatilizing a diluent solvent or the like of the adhesive composition. When the heat treatment is performed, the heating temperature is 5 〇 15 (TC is preferable, especially 70 0 12 〇 c is preferable. In addition, the heating time is preferably divided into 3 secs to 3, especially 5 5 to 2 is better. Furthermore, after heat treatment, set to normal temperature (for example, '23t, 50% RH) 1~2 It is particularly preferable that the curing period during the week is particularly good. It is presumed that the second (fluorenyl) acrylate copolymer (B) is bridged by the isocyanate bridging agent (C) by the above heat treatment (and curing) to form a dense secondary network. Then, it is presumed that two or more molecules of the fluorenyl (meth) acrylate copolymer (A) in the three-dimensional network structure are not accompanied by direct 201209117 chemical bonding, or inserted with little chemical bonding, so that When the copolymer (A) is a bundle to form a pseudo bridge structure. Further, when the (ι) (meth) acrylate copolymer (A) has a carboxyl group, the oxime (meth) acrylate copolymer (A) and the oxime coupling agent (D) Reaction, agglomeration to a certain extent. The adhesive described above can be suitably used for optical members, for example, after a polarizing plate and a phase difference plate, or a polarizing plate (polarizing film) or a phase difference plate (phase difference film) The adhesive layer formed of the above adhesive agent is excellent in stress relaxation property, so that even if the size of the object is greatly changed, it can be absorbed by the adhesive layer. The generated stress can be easily peeled off by the object for a long period of time, and when used in the optical member as described above, light leakage can be effectively prevented. In other words, the adhesive of the present embodiment can coexist with both light leakage resistance and durability. The adhesive of the present embodiment is applied to the adhesive composition. After drying (after the formation of the adhesive layer = after the production of the adhesive), the coagulation is carried out for 7 days under the conditions of 23 〇c, 5 〇%. The gel fraction is preferably 50 to 8 %, especially 60 to 77%. By setting the gel fraction within the above range, the degree of bridging of the above-mentioned adhesive bismuth, and the second (meth) acrylate copolymer (B) of the compound can be improved. Sex is very good. [Adhesive sheet] As shown in Fig. 1, the adhesive sheet 1A of the first embodiment is sequentially peeled from the sheet 12; the layer 11 is laminated on the peeling surface of the peeling sheet 12 And a substrate 13 laminated on the adhesive layer u. Further, as shown in Fig. 2, the adhesive sheet JB, 19 201209117 of the second embodiment is composed of two peeling sheets 12a, 1. π μ 2b, and two peeling sheets a two. The peeling surface is formed by the adhesive layer 11 which is sandwiched between the two peeling sheets and the coffee, and the peeling surface of the peeling sheet of the present specification means the peeling surface of the peeling sheet. The surface to which the peeling treatment is applied and the surface which exhibits peeling property even if the peeling treatment is not applied are included. The adhesive sheet 1Α, 1β, and the adhesive layer u are composed of the above-mentioned adhesive, and the adhesive formed by the zero material. The thickness of the adhesive layer is set to 疳, and the thickness of Γ k can be determined according to the use of the adhesive sheets 1A and 1B: usually 5 to 10. (4) The range of W is referred to as j / academic member', especially when used as an adhesive layer for a polarizing plate, 5 Mm, particularly preferably 10 to 30 ". The sealing cup is not particularly limited. It is generally used as a base for an adhesive sheet. It can be used, for example, in the case of a desired optical member, or a weaving cloth using a screw f, an acrylic, a poly Non-woven fabric; paper for upper quality paper, glossy paper, impregnated paper, coated paper, etc.; foil for copper, etc.; II ester foam, rav
A乙烤發泡體等的發泡體；聚對苯二甲 酸乙二醇酿、聚對m I 一甲酉欠丁二醇酯、聚萘酸乙二醇酯等 的聚酯膜、聚 虱曰臈、聚乙烯膜、聚丙烯獏、聚氣乙烯膜、 聚偏氯乙綠膜、平7 Μ 、乙烯醇膜、乙烯-醋酸乙烯酯共聚物膜、 匕本聚碳酸s旨膜、丙烯酸樹脂膜、降冰片婦系樹 月曰Ί稀烴樹脂膜、三醋酸纖維素等的塑膠膜；該等的 種以上的層積體等。塑膠膜’可為單軸延伸或雙軸延伸 者0 位相 學構件’可舉例如，偏光板(偏光膜），偏光片， 20 201209117 差板（位相差膜），視野自輔樘描 ^ Λ ,θ 尤丁角補杈膜，允度提升膜，對比提升 膜’液晶高分子膜等。其中偏光板(偏光膜），由於容易収 縮’而尺寸變化大，故由耐漏光性的觀點，可良好地作為 形成上述黏著劑層1 1之對象。 基材13之厚度，根據其種類而異，例如在光學構件之 情形’通常為〜500 "m，以5〇"m~3〇〇"m為佳。 剝離板片12、12a、12b，可使用例如，聚乙烯膜、聚 丙稀膜、聚丁浠膜、聚丁二烯膜、聚甲基戊烯膜 '聚氣1 ㈣、氯乙稀基共聚物膜、聚對笨二甲酸乙二醇@旨膜、聚 萘酸乙二醇醋膜、聚對苯二甲酸丁二醇醋膜、聚氨酉旨膜: 乙烯醋酸乙烯醋膜、離聚樹脂膜、乙稀.（甲基)丙稀酸丑 聚物膜、乙烯.（甲基)丙烯酸醋共聚物膜、聚笨乙烯膜:、 聚碳酸醋膜、聚醯亞胺膜、氟樹脂膜等。此外，亦可使用 該等的架橋膜。再者，亦可為該等的層積膜。 與上述剝離板片之剝離面（特別是接於點著劑層Η之 面），施以剝離處理為佳。使用於剝離處理之_#;， 例如，醇酸系’石夕膠系’氣系’不飽和聚醋類 臘系剝離劑。 乐 :於剝離板片12、12a、12b之厚度，並無特別限制， 通吊為20~150//m程度。 :述黏著板片1A之製造，係於制離板片12之剝離面， 塗佈包含上述黏著劑組合物之溶液’進行加熱處理形 者劑層11之後，於該黏著劑層u層積基材13。再 於加熱處理之條件，如上所述。 21 201209117 此外’上述黏著板片1B之製造，係於另一剝離板片 12a(或12b)之剝離面，塗佈包含上述黏著劑組合物之塗佈 溶液’進行加熱處理形成黏著劑層11之後，於該黏著劑層 11重曼另一剝離板片Ub(或12a)之剝離面。 塗佈上述塗佈溶液之方法’例如棒塗佈法，刀塗佈法， 棍塗法’刮刀塗佈法’模具塗佈法，凹版塗佈法等。 在此’例如’於製造由液晶胞與偏光板所構成之液晶 顯示裝置，使用偏光板作為黏著板片u之基材13，將該 當黏著板片1A之剝離板片12剝離，將露出之黏著劑層u 與液晶胞黏貼即可。 此外，例如，於製造在液晶胞與偏光板之間配置位相 差板之液晶顯示裝置’係將黏著板片1B之另-剥離板片 12a(或12b)剝離，將露出之黏著劑層u與液晶胞黏貼， 接著將另-剝離板片12b(或12a)剝離，將露出之黏著劑層 U與位相差板點貼’再者’將以偏光板作為基# 13之黏 者板片1A之剝離板μ 12剝離，將露出之黏著㈣u與位 相差板黏貼即可。 根據以上的黏著板片1A、1B，由於黏著劑層u的 力，和性㈣優良，故例如使用於偏光板之接著時，可 黏者劑層11吸収·緩和因偏光板之變形而產生之應力， 測藉此’可發揮優良的耐漏光性及高的耐久性。〜 於以上所説明之實施形態，係 载者，並非限定本發明而記載者。 形態之各要素，亦包含屬於本發明 為容易理解本發明而記 因此’揭示於上述實施 之技術範圍之所有的設 22 201209117 計變更或均等物。 例如，黏著板片1A之剝離板片i 2可省略，在於黏著 板片1B之剝離板片12a、12b之任一方亦可省略。 [實施例] 以下，以實施例等進一步具體說明本發明，惟本發明 之範圍並非受限於該等實施例等。 〔實施例1〕 1. 共聚物（A)之調製 於包含授拌機、溫度計、回流冷卻器、滴入裝置及氮 氣導入管之反應容器，放入丙烯酸正丁酯97〇質量部，丙 烯酸3.0質量部，醋酸乙酯2〇〇質量部，及2,2，_重氮雙 異丁腈0.08質量部，將上述反應容器内的空氣以氮氣置 換。於該氮氣氣氛下邊攪拌，將反應溶液升溫至6〇c>c，反 應16小時後，冷卻至室溫。在此，將所得溶液之一部分以 後述之方法以GPC測定，確認生成重量平均分子量丨5〇萬 之共聚物（A)。 2. 共聚物（B)之調製 於包含攪拌機、溫度計、回流冷卻器、滴入裝置及氮 氣導入管之反應容器，放入丙烯酸正丁酯85.0質量部，丙 烯酸2-羥基乙酯15. 〇質量部，醋酸乙酯2〇〇質量部，2-狒基乙醇〇.3質量部，及2, 2’-重氮雙異丁腈〇.16質量部， 將上述反應容器内的空氣以氮氣置換。於該氮氣氣氛下邊 攪拌，將反應溶液升溫至7〇C，反應6小時後，冷卻至室 溫。在此’將所得溶液之一部分以後述之方法以Gpc測定， 23 201209117 確認生成重量平均分子量5萬之共聚物（B)。 3 ·黏著性組合物之調製 將上述步驟（1)所得聚合物（A)1〇〇質量部（固形份換算 值），與上述步驟（2)所得聚合物（B)15質量部（固形份換算 值）混合之後，添加聚合物（β)之經基相當於0.6當量之量 (2.48質量部）之三羥曱基丙烷之曱笨基二異氰酸酯（tdi 系）加成物（日本聚氨酯公司製，商品名「c〇R〇NATE L」）作為 架橋劑（C)。最後，添加3-丙烯醯氧丙三甲氧基矽烷（信越 化學公司製，商品名「KBM403」）0.2質量部作為矽烷偶合劑 (D )，藉由充分攪拌，得到黏著性組合物之稀釋溶液。 在此，於表1表示該當黏著性組合物之配方。再者， 記載於表1之簡號等的詳細如下。 BA :丙烯酸正丁酯 AA:丙稀酸 HEA:丙烯酸2-羥基乙酯 將所得黏著性組合物之稀釋溶液，對聚對苯二甲酸乙 一醇醋膜之單面以矽膠系剝離劑剝離處理之剝離板片 (LINTEC公司製’ SP-PET3811，厚度：38//m)之剝離處理 面’以刀塗佈機塗佈成乾燥後之厚度為25gm之後，以9〇 °c加熱處理1分鐘形成黏著劑層。 接著’將由具有圓盤型液晶層之偏光膜所組成，偏光 膜與視野角擴大膜一體化之偏光板，使黏著劑層接於圓盤 型液晶層地黏貼’以2 3 C ’ 5 0 % R Η固化7天，得到且有黏 著劑層之偏光板。 24 201209117 〔實施例2~26、比較例1〜7〕 將構成黏著性組合物之各單體之種類及比例，架橋劑 及矽烷偶合劑之種類及添加量，以及共聚物（A)及共聚物（β) 之配方比變更如表1以外，以與實施例1同樣地製造具有 黏著劑層之偏光板。 〔試驗例1〕（凝膠分率〇測定） 取代用於實施例或比較例之具有黏著劑層之偏光板之 製作之偏光板，使用將聚對苯二甲酸乙二醇酯膜之單面以 石夕膠系剝離劑剝離處理之剝離板片（LINTEC公司製， SP-PET3801，厚度·· 38vm)，製作黏著板片。具體而言， 在由實施例或比較例之製造過程所得厚度25 # m之黏著劑 層上，使上述剝離板片接於剝離處理面側而層積，製作由 剝離板片/黏著劑層/剝離板片之構成所組成之黏著板片。 將所得黏著板片，於其製作後（=黏著劑層之形成後）， 以23〇C ’ 50%RH之條件下固化7天。之後，將該當黏著板 片取樣為SOmmxSOmm之尺寸，將該黏著劑層包於聚酯製網 目（網目尺寸200 )，將只有黏著劑之質量以精密天平秤量 以此時之質量為Μ1。 使用索式萃取器(Soxhlet Extract〇r)，將黏著劑的樣 品浸潰於醋酸乙酯溶劑，進行回流16小時。之後取出黏著 劑，於溫度23t，相對濕度5〇%之環境下，風乾24小時者 進一步以80t的烘箱乾燥12小時。將乾燥後之只有黏著 劑之質量’以精密天平秤量。此時之質量為M2。凝膠 (%)，係以（Μ2/Μ1 )χΐ〇〇表示。將結果示於表1。 、 25 201209117 〔試驗例2〕（光學性能之測定） 取代用於實施例或比較例之具有黏著劑層之偏光板之 製作之偏光板’使用將聚對苯二曱酸乙二醇酯膜之單面以 石夕膠系剝離劑剝離處理之剝離板片（LintEC公司製， SP-PET3801，厚度：38ym)，製作黏著板片。具體而言， 在由實施例或比較例之製造過程所得厚度25 V m之黏著劑 層上’使上述剝離板片接於剝離處理面侧而層積，製作由 剝離板片/黏著劑層/剝離板片之構成所組成之黏著板片。 將所得黏著板片，於其製作後（=黏著劑層之形成後）， 以23 C，50%RH之條件下固化7天。之後，將雙面的剝離 板片剝離，將黏著劑層的一邊的面黏貼於鈉玻璃（日本板硝 子a司製），製作測定樣品。再者，另外確認了該當鈉玻璃 本身之霧度值為0。對該當測定樣品，使用霧度計（曰本電 色工業公司製’ NDH2000)，遵照JISK71〇5測定霧度值（％)。 將結果不於表1。再者，較佳的霧度值之範圍係〇~5%。 〔試驗例3〕（耐久性評估） 將實施例或比較例所得之具有黏著劑層之偏光板，使 用裁切裝置（荻野製作所公司製supER CUTTER，pN1_6〇〇) 調查為233mmx309mm之尺寸。將剝離板片剝離，經由露出 之黏著劑層黏貼於無鹼玻璃（康寧公司製，EAGLE XG)之 ^ 乂栗原製作所製之高壓反應器，以0. 5 MPa，50°C加壓 2 0分鐘。 之後，投入下述各耐久條件之環境下，於500小時後 以1〇倍放大鏡進行觀察。外觀變化以如下基準。將結果示 26 201209117 於表1。 者 ◎:於4邊，沒有缺點者 〇.於4邊’由外周端部至 〇. 6mni以上的部位沒有缺點 X:在於4邊的至少丨邊 部位，有浮起、韌落、發泡 劑外觀異常缺點者 由外周端部至〇· 6mm以上的 條紋專的〇 _ 1 mm以上的黏著 〈对久條件〉 .6〇°C，相對濕度90% • 80 C dry [#驗例4〕（漏光性試驗） 裁 整 黏a foam such as a B-baked foam; a polyester film made of polyethylene terephthalate, a poly-p-m I-methyl oxime butane ester, a polyethylene naphthalate, or the like Bismuth, polyethylene film, polypropylene crucible, polystyrene film, polyvinylidene chloride film, flat 7 Μ, vinyl alcohol film, ethylene-vinyl acetate copolymer film, bismuth polycarbonate film, acrylic resin A plastic film such as a film, a norborne temperate, a thin hydrocarbon resin film, or a cellulose triacetate; or a laminate of the above or more. The plastic film 'can be a uniaxially extended or biaxially stretched 0-phase phased member', for example, a polarizing plate (polarizing film), a polarizing plate, 20 201209117 poor plate (phase difference film), and a field of view self-assisted scanning Λ θ 尤丁角补杈膜, tolerance lifting film, contrast lifting film 'liquid crystal polymer film, etc. Among them, the polarizing plate (polarizing film) has a large dimensional change due to easy shrinkage, so that it can be satisfactorily formed as the above-mentioned adhesive layer 11 from the viewpoint of light leakage resistance. The thickness of the substrate 13 varies depending on the type thereof. For example, in the case of an optical member, it is usually 〜500 "m, preferably 5 〇"m~3〇〇"m. For peeling the sheets 12, 12a, 12b, for example, a polyethylene film, a polypropylene film, a polybutylene film, a polybutadiene film, a polymethylpentene film, a polygas 1 (tetra), a vinyl chloride-based copolymer can be used. Membrane, polyethylene terephthalate @膜, polynaphthalene glycol vinegar film, polybutylene terephthalate film, polyurethane film: ethylene vinyl acetate film, ionized resin film , Ethylene (meth)acrylic acid oligomer film, ethylene. (meth)acrylic acid vine copolymer film, polystyrene film: polycarbonate film, polyimide film, fluororesin film, and the like. In addition, these bridge films can also be used. Furthermore, it may be such a laminated film. It is preferable to apply a peeling treatment to the peeling surface of the peeling sheet (particularly, the surface of the peeling layer). For the peeling treatment, for example, an alkyd-based 'Shishi gum system' gas system' unsaturated polyacetic acid wax-based release agent. Le: The thickness of the peeling sheets 12, 12a, 12b is not particularly limited, and the hanging is about 20 to 150 / / m. The production of the adhesive sheet 1A is carried out on the release surface of the release sheet 12, and the solution containing the above adhesive composition is applied. After the heat treatment of the shape agent layer 11, the layer is laminated on the adhesive layer. Material 13. The conditions of the heat treatment are as described above. 21 201209117 In addition, the manufacture of the above-mentioned adhesive sheet 1B is performed on the peeling surface of the other peeling sheet 12a (or 12b), and the coating solution containing the above adhesive composition is applied to perform heat treatment to form the adhesive layer 11 The adhesive layer 11 is heavy on the peeling surface of the other peeling sheet Ub (or 12a). The method of applying the above coating solution is, for example, a bar coating method, a knife coating method, a stick coating method, a doctor blade coating method, a die coating method, a gravure coating method, or the like. Here, for example, in the manufacture of a liquid crystal display device comprising a liquid crystal cell and a polarizing plate, a polarizing plate is used as the substrate 13 of the adhesive sheet u, and the peeling sheet 12 of the adhesive sheet 1A is peeled off to expose the adhesive. The layer u can be adhered to the liquid crystal cell. Further, for example, in the liquid crystal display device in which the phase difference plate is disposed between the liquid crystal cell and the polarizing plate, the other-peeling sheet 12a (or 12b) of the adhesive sheet 1B is peeled off, and the exposed adhesive layer u and The liquid crystal cell is pasted, and then the other-peeled sheet 12b (or 12a) is peeled off, and the exposed adhesive layer U and the phase difference plate are pasted 'again', and the polarizing plate is used as the base #13 of the adhesive sheet 1A. The peeling plate μ 12 is peeled off, and the exposed adhesive (four) u is adhered to the phase difference plate. According to the above-mentioned adhesive sheets 1A and 1B, since the force and the property (4) of the adhesive layer u are excellent, for example, when the polarizing plate is used, the adhesive layer 11 absorbs and relaxes the deformation due to the deformation of the polarizing plate. The stress, measured by this, can provide excellent light leakage resistance and high durability. The embodiments described above are not limited to the description of the present invention. The elements of the present invention are also included in the present invention for the purpose of facilitating the understanding of the present invention. Therefore, all of the elements disclosed in the technical scope of the above-described embodiments are changed or equivalent. For example, the peeling sheet i 2 of the adhesive sheet 1A can be omitted, and either one of the peeling sheets 12a and 12b of the adhesive sheet 1B can be omitted. [Examples] Hereinafter, the present invention will be specifically described by way of Examples and the like, but the scope of the present invention is not limited to the Examples and the like. [Example 1] 1. The copolymer (A) was prepared in a reaction vessel containing a mixer, a thermometer, a reflux condenser, a dropping device, and a nitrogen introduction tube, and was placed in a mass fraction of n-butyl acrylate 97 Å, and acrylic acid 3.0. The mass portion, the ethyl acetate 2 〇〇 mass portion, and the 2,2,_diazobisisobutyronitrile 0.08 mass portion were replaced with nitrogen in the reaction vessel. The mixture was stirred under a nitrogen atmosphere, and the reaction solution was heated to 6 ° C > c, and after reacting for 16 hours, it was cooled to room temperature. Here, a part of the obtained solution was measured by GPC by the method described later, and it was confirmed that a copolymer (A) having a weight average molecular weight of 丨50,000 was produced. 2. The copolymer (B) is prepared in a reaction vessel containing a stirrer, a thermometer, a reflux condenser, a dropping device, and a nitrogen introduction tube, and is placed in an amount of 85.0 parts by mass of n-butyl acrylate, 2-hydroxyethyl acrylate 15. , the mass fraction of ethyl acetate 2 ,, the mass fraction of 2-mercaptoethanol oxime. 3, and the mass part of 2, 2'-diazobisisobutyronitrile. The air in the above reaction vessel was replaced with nitrogen. . The mixture was stirred under a nitrogen atmosphere, and the reaction solution was heated to 7 ° C for 6 hours, and then cooled to room temperature. Here, a part of the obtained solution was measured by Gpc, and 23 201209117 confirmed that a copolymer (B) having a weight average molecular weight of 50,000 was formed. (3) Preparation of Adhesive Composition The polymer (A) obtained in the above step (1) has a mass portion (solid content converted value), and the polymer (B) obtained in the above step (2) has 15 mass portions (solid content). After mixing, the base of the polymer (β) is added in an amount equivalent to 0.6 equivalent (2.48 mass%) of trisylhydrazine propenyl diisocyanate (tdi) adduct (manufactured by Nippon Polyurethane Co., Ltd.) , the trade name "c〇R〇NATE L") as a bridging agent (C). Finally, 0.2 mass part of 3-propenyl methoxypropane trimethoxy decane (trade name "KBM403" manufactured by Shin-Etsu Chemical Co., Ltd.) was added as a decane coupling agent (D), and a diluted solution of the adhesive composition was obtained by sufficiently stirring. Here, the formulation of the adhesive composition is shown in Table 1. The details of the simple numbers and the like described in Table 1 are as follows. BA: n-butyl acrylate AA: acrylic acid HEA: 2-hydroxyethyl acrylate A diluted solution of the obtained adhesive composition is peeled off from a single side of a polyethylene terephthalate film by a silicone peeling agent. The peeling sheet ("PE-PET3811, thickness: 38/m" manufactured by LINTEC Co., Ltd.) was applied to a peeling-treated surface of a coating machine to a thickness of 25 gm after drying, and then heat-treated at 9 ° C for 1 minute to form a sheet. Adhesive layer. Then, 'a polarizing plate composed of a polarizing film having a disc-shaped liquid crystal layer and a polarizing film integrated with a viewing angle expansion film, and the adhesive layer is adhered to the disc-shaped liquid crystal layer to be '2 3 C ' 50% R Η was cured for 7 days to obtain a polarizing plate having an adhesive layer. 24 201209117 [Examples 2 to 26, Comparative Examples 1 to 7] The types and ratios of the monomers constituting the adhesive composition, the types and addition amounts of the bridging agent and the decane coupling agent, and the copolymer (A) and copolymerization A polarizing plate having an adhesive layer was produced in the same manner as in Example 1 except that the formulation ratio of the material (β) was changed as shown in Table 1. [Test Example 1] (Measurement of gel fraction 〇) Instead of the polarizing plate used for the production of the polarizing plate having the adhesive layer of the example or the comparative example, one side of the polyethylene terephthalate film was used. An adhesive sheet piece (SP-PET3801, thickness: 38 vm) manufactured by a peeling agent of Shishi gum-based release agent was prepared to prepare an adhesive sheet. Specifically, on the adhesive layer having a thickness of 25 # m obtained in the production process of the examples or the comparative examples, the peeling sheets were joined to the side of the peeling treatment surface to be laminated, and the peeling sheet/adhesive layer was produced. An adhesive sheet composed of a structure of a peeling sheet. The obtained adhesive sheet was cured under the conditions of 23 ° C ' 50% RH for 7 days after its production (= after the formation of the adhesive layer). Thereafter, the adhesive sheet was sampled to a size of SOmmx SOmm, and the adhesive layer was wrapped in a polyester mesh (mesh size 200), and only the mass of the adhesive was weighed by a precision balance at a mass of Μ1. The sample of the adhesive was immersed in an ethyl acetate solvent using a wire extractor (Soxhlet Extract®), and refluxed for 16 hours. Thereafter, the adhesive was taken out, and air-dried for 24 hours in an environment of a temperature of 23 t and a relative humidity of 5 〇% for further 12 hours in an oven of 80 t. The only quality of the adhesive after drying is weighed with a precision balance. The mass at this time is M2. Gel (%), expressed as (Μ2/Μ1)χΐ〇〇. The results are shown in Table 1. , 25 201209117 [Test Example 2] (Measurement of optical properties) Instead of using a polarizing plate for the production of a polarizing plate having an adhesive layer of the embodiment or the comparative example, a polyethylene terephthalate film was used. A peeling sheet (SP-PET3801, thickness: 38 μm, manufactured by LintEC Co., Ltd.) which was peeled off by a Shiyue-based release agent was used to produce an adhesive sheet. Specifically, on the adhesive layer having a thickness of 25 V m obtained in the production process of the example or the comparative example, the peeling sheet was joined to the side of the release-treated surface to be laminated, and the peeled sheet/adhesive layer was produced. An adhesive sheet composed of a structure of a peeling sheet. The obtained adhesive sheet was cured under the conditions of 23 C, 50% RH for 7 days after its preparation (= after the formation of the adhesive layer). Thereafter, the peeling sheets on both sides were peeled off, and the surface of one side of the adhesive layer was adhered to soda glass (manufactured by Nippon Sheet Glass Co., Ltd.) to prepare a measurement sample. Further, it was confirmed that the haze value of the soda glass itself was 0. For the measurement sample, a haze meter (manufactured by Sakamoto Denshoku Industries Co., Ltd. NDH2000) was used, and the haze value (%) was measured in accordance with JIS K71〇5. The results will not be as shown in Table 1. Furthermore, the preferred range of haze values is 〇~5%. [Test Example 3] (Evaluation of Durability) The polarizing plate having the adhesive layer obtained in the examples or the comparative examples was inspected to have a size of 233 mm x 309 mm by using a cutting device (supER CUTTER, pN1_6, manufactured by Takino Seisakusho Co., Ltd.). The peeling sheet was peeled off, and the exposed adhesive layer was adhered to a high-pressure reactor made of an alkali-free glass (EAGLE XG, manufactured by Corning Co., Ltd.), and pressed at 0. 5 MPa, 50 ° C for 20 minutes. . Thereafter, it was observed under an environment of the following durability conditions, and after 500 hours, it was observed with a magnifying glass of 1 inch. The appearance changes as follows. The results are shown in Table 2012. ◎: On the 4 sides, there are no defects. 于. On the 4 sides 'from the outer end to the 〇. 6mni or more has no defects X: at least 4 sides of the edge, there are floating, toughness, foaming agent Abnormal appearance defects from the outer peripheral end to the 〇·6mm or more stripe-specific 〇 _ 1 mm or more adhesion <for long-term conditions> .6 〇 ° C, relative humidity 90% • 80 C dry [# test 4] ( Light leakage test)
實丨或比較例所得具有黏著劑層之偏光板，使用 切裝置（狄野製作所公司製supER CUTTER ， PN1-600)調 為233mmx30 9mm之尺寸。將剝離板片剝離，經由露出之 著劑層黏貼於無驗玻璃（康寧公司製，EAGLE XG)之後，以 栗原製作所製高壓反應器以0. 5MPa，5(TC，加壓20分鐘。 再者’上述黏貼’係使具有黏著劑層之偏光板的偏光軸在 無驗玻璃正反面呈正交偏振狀態（偏光軸：/45。，35。） 地進行。以此狀態，於8(TC dry環境下放置500小時後， 以如下所示方法評估漏光性。將結果示於表1。 〈漏光性評估〉 使用大塚電子公司製之MCPD-2000，測定圖3所示各 區域之明亮度，將明亮度差△ L*，以式 △ L*=[(b+c + d + e)/4]-a 27 201209117 (其中，a、b' c、d及e，分別係事先分別設定於A區 域、B區域、c區域、D區域及E區域之測定點（各區域之 中央部1處）之明亮度。）求得，作為漏光性。△ L*之值越 小表示漏光越少。此外，使上述b〜e之值之中最大值為 L*max ° L*max越大，意味著在局部存在著漏光很強的部分。 在此，上述之重量平均分子量，係使用凝膠滲透層析 (GPC)以如下條件測定（GPC測定）以聚苯乙烯換算之重量平 均分子量。 〈測定條件〉 • GPC測定裝置：T0S0公司製，HLC-8020 .GPC管柱（以如下順序通過）：t〇s〇公司製The polarizing plate having the adhesive layer obtained in the actual or comparative example was adjusted to a size of 233 mm x 30 9 mm using a cutting device (supER CUTTER, PN1-600, manufactured by Dieno Co., Ltd.). 5MPa,5(TC, pressurization for 20 minutes. Further, the peeling sheet was peeled off, and the exposed layer was adhered to the non-inspective glass (EAGLE XG, manufactured by Corning Co., Ltd.). The above-mentioned "adhesive" is such that the polarizing axis of the polarizing plate having the adhesive layer is in an orthogonal polarization state (polarizing axis: /45, 35) on the front and back surfaces of the glass. In this state, at 8 (TC dry) After leaving the environment for 500 hours, the light leakage was evaluated by the following method. The results are shown in Table 1. <Light Leakage Evaluation> Using the MCPD-2000 manufactured by Otsuka Electronics Co., Ltd., the brightness of each region shown in Fig. 3 was measured. The difference in brightness is Δ L*, in the formula Δ L*=[(b+c + d + e)/4]-a 27 201209117 (where a, b' c, d and e are respectively set in advance in A respectively The brightness of the measurement points (one at the center of each area) of the area, the B area, the c area, the D area, and the E area.) The light leakage is obtained. The smaller the value of ΔL*, the smaller the light leakage. The larger of the above values of b to e is L*max ° L*max, which means that there is a portion where the light leakage is strong. Here, the above-mentioned weight average molecular weight is measured by gel permeation chromatography (GPC) under the following conditions (GPC measurement) in terms of polystyrene-equivalent weight average molecular weight. <Measurement conditions> • GPC measurement device: manufactured by T0S0, HLC-8020 .GPC pipe string (passed in the following order): t〇s〇 company
TSK guard column HXL-HTSK guard column HXL-H
TSK gel GMHXL (x2) TSK gel G2000HXL •測定溶劑：四氩呋喃 •測定溫度：40°C 28 201209117 凝膠 分率 (%) m ο S jn r·» Ό *Ti Ό 〇\ v〇 Ό 〇 Ό Ό οο ο 00 Ό Ρ Ό ε <N o s〇 so ί〇 卜 ITi «η 00 § oo »n p· s 霧度值 (%) ο Ο g ο g o § 〇 〇 〇 g 〇 § o g o § o o s o Ο Ο ο ο § ο S ο § ο g Ο g ο § o g o g o g o § ο 〇 Ο o § O g o s o g o s o 耐久性 濕熱 (60〇C90%RH) 〇 ◎ ◎ ◎ ◎ ◎ ◎ 〇 ◎ o o o ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 〇 ◎ 〇 X X <1 X 0 X X ,1 oo^ 〇 ◎ ◎ ◎ ◎ ◎ ◎ 〇 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 0 ◎ o ◎ ◎ < <1 X 〇 X o X 耐漏光性 判定 〇 〇 〇 0 〇 〇 〇 0 〇 〇 〇 0 Ο 〇 〇 〇 0 〇 〇 0 〇 〇 〇 0 〇 〇 〇 〇 X 〇 X 〇 AL* Os Ο ο (Ν (N 二 00 o o Os r-i On (N VO (N o (N ρ —· ιη (Ν (N o On 卜 p - 卜 - Tf r·» rn L*max 00 ίΝ TJ- rn 〇\ (N κη n-j o fS 00 rS On (N r^-i — — r*· \q tt rn hS Ό (Ν’ (Ν’ (Ν rn 卜 七 (Ν ON (N ΙΛ1 — rn rn ΓΛ ν〇 rn m (Ν 卜 fS — Ό (N rn 00 (N 1 mol比 Ο rs SO Ο oo o s 〇 <N 'O 〇 Ό 〇 o oo o (N VO o (N Ό 〇 2 O 00 (N o γ- m ο Ο SO ο Ρ； ο 卜 ο rn <N \〇 o 〇 o S o rn oo O *r> o <N Ό 〇 (N o o r»» ρη r- O 矽烷偶 合劑(D) 質量部 <Ν Ο ο fN o <N d <N 〇 <N 〇 fN 〇 (N O rs o rs o ίΝ 〇 fS o (Ν Ο cs ο ίΝ Ο <Ν ο (Ν Ο <N o fN 〇 <N 〇 <N 〇 (N o fS o <N 〇 (N <N 〇 (N o fS o (N o fS o (N 〇 O o 異氰酸酯類架橋劑(C) 質量部 (phr/day) Γ» (Ν VO rn τί·' r*S cn (N 00 o rS 00 r- (N Ό ττ *ΛΪ Ό rS Ό rS o m Ό PO OO Ό rS VO rn <N «ri S 〇\ s On s s \ύ s S 'O rS (HEA當量） Ό Ο VO O s〇 〇 so o Ό 〇 Ό 〇 Ό 〇 s〇 o \〇 〇 rn 〇·ν o o ο Ό Ο Ό Ο Ό Ο ν〇 Ο VD O Ό d Ό d Γ*Ί 〇 On 〇 Ό o s〇 0 卜 o v〇 d Ό d rs o p <N d o Ό 〇 第2丙烯酸酯共聚物(B) 質量部 tr> S (N s s s s s s V5 (Ν 沄 m <N <N S s g s s s s V) rs ir> v> tn *r> V) <Ν ir> V) m ΙΛ» <〇 */> >Λ in «Τ» V) V) in 1 ΒΑ/ΗΕΑ=85/15 | BA/HEA=85/15 | BA/HEA=85/15 | BA/HEA=85/15 I BA/HEA=85/15 | BA/HEA-85/15 | BA/HEA=90/10 | BA/HEA=80/20 : | BA/HEA=85/15 | | BA/HHA=85/15 | I BA/HEA=85/15 1 BA/HEA=85/15 1 ΒΑ/ΗΕΑ=85/15 1 1 ΒΑ/ΗΕΑ=85/15 | ΒΑ/ΗΕΑ=85/15 1 ΒΑ/ΗΕΑ=85/15 1 ΒΑ/ΗΗΑ=85/15 1 BA/HEA=90/10 I BA/HEA=80/20 I BA/HEA=85/15 I BA/HEA=85/I5 | BA/HEA=85/!5 | BA/HEA=85/I5 | BA/HEA=85/15 | BA/HEA=80/20 | BA/HEA=85/I5 | BA/HEA=85/I5 丨 BA/HEA=85/15 | BA/HEA=85/15 | BA/HEA=85/15 | BA/HEA=85/!5 | BA/HEA=85/I5 | 第丨丙烯酸酯共聚物(B) 質量部 ο o o o o o o o o o o o ο ο ο ο ο o o o 〇 o o o o o o o o o o o Mw (xlOJ) s o ο ο o s o <N 組成 1 ΒΑ/ΑΑ=97/3 I BA/AA=97/3 1 BA/AA=97/3 I BA/AA=97/3 [BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | | BA/AA=95/5 | 1 ΒΑ/ΑΑ=95/5 | ΒΑ/ΑΑ=95/5 ΒΑ/ΑΑ=95/5 1 ΒΑ/ΑΑ=95/5 1 ΒΑ/ΑΑ-95/5 1 BA/AA=95/5 I BA/AA-95/5 I BA/AA=95/5 I BA/AA=95/5 | BA/AA=95/5 | ΒΛ/ΛΛ=98/2 | BA/AA=94/6 | BA/AA=97/3 | BA/AA=97/3 | BA/AA=95/5 | BA/AA=97/3 | BA/AA==97/3 | BA/AA=95/5 | BA/AA=95/5 | BA/AA=95/5 1實施例1 |實施例2 |實施例3 |實施例4 |實施例5 |實施例6 |實施例7 ； |實施例8 i 實施例9 I 丨實施例丨〇 1 1實施例11 I |實施例丨2 1 1實施例13 1 1實施例14 1 1實施例15 1 丨實施例丨6 1 丨實施例17 1 丨實施例丨8 1 丨實施例丨9 1 |實施例20 I |實施例21 I 1實施例22 1 |實施例23 I |實施例24 I |實施例25 I 1比較例丨1 |比較例2 | |比較例3 | |比較例4 I |比較例5 1 |比較例6 | 比較例7 29 201209117 由表1可知’實施例所得具有黏者劑層之偏光板，而才 久性並沒有問題，耐漏光性亦優良。關於比較例1及比較 例2，由於第2(曱基）丙烯酸酯共聚物（B)對第丨（曱基）丙稀 酸酯共聚物（A)之配方比例過大，而耐久性較差。關於比較 例3及比較例5，由於異氰酸酯類架橋劑（C)之含量過少， 而耐久性較差。關於比較例4及比較例6，由於異氰酸醋 類架橋劑（c)之含量過多，而耐漏光性較差。關於比較例7， 由於不包含矽烷偶合劑（D)，而耐久性較差。 [產業上的利用可能性] 本發明之黏著性組合物及黏著劑，適於光學構件，例 如偏光板或位相差板之接著，此外，本發明之黏著板片， 適於偏光板或位相差板等的光學構件用之黏著板片。 【圖式簡單說明】 圖1係關於本發明之第丨實施形態之黏著板片之剖面 圖。 圖2係關於本發明之第2實施形態之黏著板片之剖面 圖。 圖3係表示在具有黏著劑層之偏光板之漏光性試驗之 測定區域之圖。 【主要元件符號說明】 ΙΑ、1B〜黏著板片； 11〜黏著劑層； 201209117 12、12a、12b〜剝離板片； 13〜基材。 31TSK gel GMHXL (x2) TSK gel G2000HXL • Determination solvent: tetrahydrofuran • Measurement temperature: 40°C 28 201209117 Gel fraction (%) m ο S jn r·» Ό *Ti Ό 〇\ v〇Ό 〇Ό ο οο ο 00 Ό Ρ Ό ε <N os〇so ί〇卜ITi «η 00 § oo »np· s haze value (%) ο Ο g ο go § 〇〇〇g 〇§ ogo § ooso Ο Ο ο ο § ο ο ο ο ο ο ο ο ο ο ο ο ο ο ο ο ο ο ◎ ◎ 〇 〇 & & & 1 1 1 1 1 1 1 1 1 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ lt lt lt lt lt lt lt X Light leakage resistance judgment 〇〇〇0 〇〇〇0 〇〇〇0 Ο 〇〇〇0 〇〇0 〇〇〇0 〇〇〇〇X 〇X 〇AL* Os Ο ο (Ν (N 2 00 oo Os Ri On (N VO (N oo (N ρ -· ιη (Ν (N o On 卜 p - 卜 - Tf r·» rn L*max 00 ίΝ TJ- rn 〇\ (N κη nj o fS 00 rS On ( N r^-i — — r*· \q tt rn hS Ό (Ν' (Ν' (Ν rn 卜 七 (Ν ( (N ΙΛ1 — rn rn ΓΛ ν〇rn m (Ν f fS — Ό (N rn 00 (N 1 mol Ο rs SO Ο oo os 〇<N 'O 〇Ό 〇o oo o (N VO o (N 〇2 O 00 (N o γ- m ο Ο SO ο Ρ; ο 卜 ο rn < N \ 〇o 〇o S o rn oo O *r> o <N Ό 〇(N oor»» ρη r- O decane coupling agent (D) Quality Department <Ν Ο ο fN o <N d <N 〇 <N 〇fN 〇(NO rs o rs o Ν 〇fS o (Ν Ο cs ο ί Ν Ο <Ν ο (Ν Ο <N o fN 〇<N 〇<N 〇(N o fS o < ;N 〇(N <N 〇(N o fS o (N o fS o (N 〇O o isocyanate bridging agent (C) quality part (phr/day) Γ» (Ν VO rn τί·' r*S Cn (N 00 o rS 00 r- (N Ό ττ *ΛΪ Ό rS Ό rS om Ό PO OO Ό rS VO rn <N «ri S 〇\ s On ss \ύ s S 'O rS (HEA equivalent) Ό VO VO 〇 o 〇〇 ν ν ν 〇 〇〇 〇〇 ν ν ν 〇〇 〇〇 〇Ο ν ν Ό 〇Ο 〇Ο 〇Ο D Ο Ο 〇Ο 〇Ο D D Ί Ί Ί 〇 Ί Ί 〇 〇 〇 〇 0 卜〇〇 Ό d rs op <N do Ό 〇 2nd propylene Ester copolymer (B) Mass portion tr> S (N ssssss V5 (Ν 沄 m < N < NS sgssss V) rs ir > v > tn *r > V) <Ν ir> V) m ΙΛ» < ;〇*/>>Λ in «Τ» V) V) in 1 ΒΑ/ΗΕΑ=85/15 | BA/HEA=85/15 | BA/HEA=85/15 | BA/HEA=85/15 I BA/HEA=85/15 | BA/HEA-85/15 | BA/HEA=90/10 | BA/HEA=80/20 : | BA/HEA=85/15 | | BA/HHA=85/15 | I BA/HEA=85/15 1 BA/HEA=85/15 1 ΒΑ/ΗΕΑ=85/15 1 1 ΒΑ/ΗΕΑ=85/15 | ΒΑ/ΗΕΑ=85/15 1 ΒΑ/ΗΕΑ=85/15 1 ΒΑ/ΗΗΑ=85/15 1 BA/HEA=90/10 I BA/HEA=80/20 I BA/HEA=85/15 I BA/HEA=85/I5 | BA/HEA=85/!5 | BA/HEA=85/I5 | BA/HEA=85/15 | BA/HEA=80/20 | BA/HEA=85/I5 | BA/HEA=85/I5 丨BA/HEA=85/15 | BA/ HEA=85/15 | BA/HEA=85/15 | BA/HEA=85/!5 | BA/HEA=85/I5 | Dimethacrylate Copolymer (B) Quality Department ο ooooooooooo ο ο ο ο ο ooo 〇ooooooooooo Mw (xlOJ) so ο ο oso <N Composition 1 ΒΑ/ΑΑ=97/3 I BA/AA=97/3 1 BA/AA=97/3 I BA/AA=97/3 [BA/AA =97/3 | BA/AA=97/3 BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | BA/AA=97/3 | | BA/AA=95/5 | 1 ΒΑ/ΑΑ=95/5 | ΒΑ/ΑΑ=95/5 ΒΑ/ΑΑ=95/5 1 ΒΑ/ΑΑ=95/5 1 ΒΑ/ΑΑ-95/5 1 BA/AA=95/5 I BA/ AA-95/5 I BA/AA=95/5 I BA/AA=95/5 | BA/AA=95/5 | ΒΛ/ΛΛ=98/2 | BA/AA=94/6 | BA/AA= 97/3 | BA/AA=97/3 | BA/AA=95/5 | BA/AA=97/3 | BA/AA==97/3 | BA/AA=95/5 | BA/AA=95 /5 | BA/AA=95/5 1 Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7; Example 8 i Example 9 I Example 1 1 Example 11 I | Example 丨 2 1 1 Example 13 1 1 Example 14 1 1 Example 15 1 丨 Example 1 6 1 丨 Example 17 1 丨 Example 1 8 1 丨 Example丨9 1 |Example 20 I | Example 21 I 1 Example 22 1 | Example 23 I | Example 24 I | Example 25 I 1 Comparative Example | 1 | Comparative Example 2 | | Comparative Example 3 | Example 4 I |Comparative Example 5 1 |Comparative Example 6 |Comparative Example 7 29 201209117 It can be seen from Table 1 that the polarizing plate having the adhesive layer obtained in the examples has no problem in terms of durability and is excellent in light leakage resistance. With respect to Comparative Example 1 and Comparative Example 2, the formulation ratio of the second (fluorenyl) acrylate copolymer (B) to the fluorene (mercapto) acrylate copolymer (A) was too large, and the durability was inferior. In Comparative Example 3 and Comparative Example 5, since the content of the isocyanate-based bridging agent (C) was too small, the durability was inferior. In Comparative Example 4 and Comparative Example 6, since the content of the isocyanate-type bridging agent (c) was too large, the light leakage resistance was inferior. Regarding Comparative Example 7, since the decane coupling agent (D) was not contained, the durability was inferior. [Industrial Applicability] The adhesive composition and the adhesive of the present invention are suitable for an optical member such as a polarizing plate or a phase difference plate, and further, the adhesive sheet of the present invention is suitable for a polarizing plate or a phase difference An adhesive member for an optical member such as a board. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing an adhesive sheet according to a third embodiment of the present invention. Fig. 2 is a cross-sectional view showing an adhesive sheet according to a second embodiment of the present invention. Fig. 3 is a view showing a measurement area of a light leakage test of a polarizing plate having an adhesive layer. [Main component symbol description] ΙΑ, 1B~ adhesive sheet; 11~ adhesive layer; 201209117 12, 12a, 12b~ peeling sheet; 13~ substrate. 31