TW201245389A

TW201245389A - Adhesive and adhesion strip

Info

Publication number: TW201245389A
Application number: TW101106890A
Authority: TW
Inventors: Yuki Ozawa; Tadashi Matano; Takayuki Arai; Satoru Shoshi
Original assignee: Lintec Corp
Priority date: 2011-03-31
Filing date: 2012-03-02
Publication date: 2012-11-16
Also published as: TWI634188B; KR20120112021A; CN103146323A; KR101899377B1; TWI618773B; TW201708467A; JP5758673B2; JP2012214546A

Abstract

This invention provides an adhesive and an adhesion strip having the excellence in both aspects of the light leakage tolerance and durability when being applied to an optical device such as a polarizing sheet. The gelling ratio of the adhesive is 45 to 90%, while the weight average molecular weight measured by the gel permeation chromatography of the gel portion is 600,000 to 2,500,000. Preferably, the adhesive contains the ingredient formed by crosslinking a first (meth)acrylate polymer (A) having a weight average molecular weight of 600,000 to 2,500,000 and a second (meth)acrylate polymer (B) having a weight average molecular weight of 8,000 to 300,000.

Description

201245389 六、發明說明：【發明所屬之技術領域】本發明有關黏者劑以及黏者片’特別是有關偏振片等的光學部件用的適宜的黏著劑以及黏著片。【先前技術】一般’液晶面板中’多使用由將偏振片以及相位差板黏在玻璃基板等的從黏著性黏著劑組成物形成的黏著劑層。但是，偏振片以及相位差板等的光學部件因為熱等易產生收縮，出現熱變化造成的收縮，其結果，該光學部件上層疊的基黏著劑層不能跟隨該收縮，產在·王仕界面的剝離 (所謂浮起，剝離），光學部件的收缩咩沾& m … 丁 J叹细呀的起因於應力的光學部件的光學軸偏離，從而產生漏光（工、所明白斑）的問 7¾ 。廿B … ，7』今、、U將黏著力高，部件’I態安定性優良的黏著劑層黏付於偏振片等的光學 4件’由此使光學部件自身進行抑製的方或者使用光學部件的收料應力為小的黏 (1 )的方、本,., 增的方法。作為 )的H如專利文獻Μ示的料的黏著劑層是右砷Μ 2 用儲此杈罝高 W層疋有效的。另一方面，作為對光學部件的變的方法，使用劑層是有効的。但是，以往，要形：優良的勘著良的黏著劑層的場合，有〜力松馳率優設低。這樣-來…右:將該黏者劑層中的交聯密度性為變差的問題。、強度變低，耐久 201245389 由此，專利文獻2至4中，不是將黏著劑層的交聯密度又低而疋將可塑劑，流動石蠟，氨酯彈性體等添加於丙稀酸類黏著劑，由此使得到的黏著劑組成物適度地柔軟對黏著劑層賦予應力松驰帛，由此，想得到财漏光性以及耐久性。 [專利文獻1]特開2006-235568號公報 [專利文獻2 ]特開平5 - 4 5 51 7號公報 [專利文獻3]特開平9_137143號公報 [專利文獻4]特開2005-1 94366號公報仁疋添加可塑劑或者流動石蝶的黏著劑組成物，形成的黏著劑層會隨著時間可塑劑以及流動石蠟滲出這一難並且自ιϋ ’黏著耐久性為變低，被黏著體的液晶單元被污"，各種的問題被吾人所擔心。另外，添加氛醋彈性體的黏著劑組成物，如想維持相溶性，但是氨醋彈性體的添加量有上限，右+ ， s有上！民冑應力松驰率的改善不充分的傾向。進-步，為了高應力松驰率’如增加氨酷彈性體的添加量，和丙稀酸類黏著劑的相溶性會變⑯，白濁等的問題發生。 :此，以往的技術中，光學部件從根本上改善有黏著劑組成的黏者劑層的耐漏光性以及耐久性是困難的。【發明内容】本發明的目的就是提時’耐漏光性和耐久本發明，就是鑒於此而產生的。供一種在適用於偏振片等的光學部件眭的兩方都優良的黏著劑以及黏著片 4 201245389 ,、·、了達成上述目的’第卜本發明，式提供一種凝膠比率為45至90%’溶膠部分的凝膠滲透色譜⑽法測量的重量平均分子量為6()萬至25〇萬為特徵的黏著劑（發明1 )。上述發明（發明i)的黏著劑’含有具有所定的凝膠比率、所定的分子量的溶膠部分’可以優良的應力松驰率。具有如此優良的應力松驰率的黏著劑，在適用於偏振片等的光學部件時，可以得到耐漏光性和耐久性的兩方都優良的黏著片。上述發明（發明υ中，較佳是含有重量平均分子量為60萬至250萬的第！（甲基）丙稀酸醋聚合物（α)和，重量平均分子量為8_至3G萬的第2 (甲基）丙稀酸醋聚合物（B)交聯而成的成分（發明2 )。上述發明（發明2)中，較佳是對上述第i (甲基）丙烯酸酯聚合物⑴1〇〇質量份，上述第2 (曱基）丙烯酸酯聚合物（B) @比率為5至50質量份（發明3)。上述發明（發明2，3)中，較佳是交聯前的上述第2 (曱基）丙烯酸酯聚合物（B)，作為構成成分，含有具有反應性的官能基的單體超過i質量％超，5〇質量％未滿（發明4)。上述發明（發明4)中’上述第2(曱基）丙烯酸酯聚 &物（B)’較佳是上述反應性的官能基和具有反應可能的父聯性基的交聯劑（C )反應’從而交聯（發明5 )。第2 ’本發明，為具有基材以及黏著劑層的黏著片， 201245389 上述黏著劑層’由上述黏著劑(發明】至5)形成(發上述發明（發明6)中，上述基材，較佳 (發明7) 。 1 1午第3’本發明，為—種點著片’其具有2枚剝離片以及由上述2牧剝離片挾持的黏著劑層，從而上述黏著劑居與2枚剝離片相接’其特徵在於上述黏著劑層由上_ 劑（發明1至5)形成（發明8)。本發明的黏著劑’具有所定的凝膠比率以及有所定的分子量的溶膠部分，由可以發揮優良的應力松驰率。具有如此優良的應力松驰率的黏著劑’在適用於偏振片等的光，部件時，可以得到耐漏光性和耐久性的兩方都優良的黏著片。【實施方式】以下，對本發明的實施形態進行說明。〔黏著劑〕本實施形態的黏著劑’凝膠比率為45至9〇%，較 50至80%，特佳55至70%。如使本實施形態的黏著劑’凝膠比率，即交聯的程度在上述的範圍Θ，交聯而成的三維網狀構造可以良好地形成，具有適宜的凝集力。“匕’光學部件適用的場合，可以得到耐久性優良的黏著片。並且，㈣劑的凝膠比率，黏付時（老化期間經過後）的值。具體地說，黏著性組成物塗於剝離片，加熱處理後，23t，5〇%RH的環境下進行7 天保管後的凝膠比率。黏著劑的凝膠比率，老化期間經過 6 201245389 前’其值為變動的。從這樣的觀點，老化期間經過明的場合，可以再—次，在23°C，的環境下進行7 天保管後，使凝膠比率進入為上述範圍内即可。另外，本實施形態的黏著劑，溶膠部分的凝膠渗透色譜（GPC)法測量的重量平均分子量（Mw;聚笨乙烯換算）為60萬至250萬’較佳為8〇至22〇萬特佳_至_ 萬。溶朦部分如1述，為上述是比較大的重量平均分子量交聯而成的三維網狀構造的形成高分子化合& (高刀分子量成分）的自由度高，黏著劑的應力松馳率為優良二：里對此進行詳述。 ’ 本實施形態的黏著劑中，其低分子量成分透過化學的父聯構造形成三維網狀構造（推測）。由此，低八子^201245389 VI. Description of the Invention: [Technical Field] The present invention relates to an adhesive and an adhesive sheet, particularly a suitable adhesive for an optical member such as a polarizing plate, and an adhesive sheet. [Prior Art] In the liquid crystal panel, an adhesive layer formed of an adhesive adhesive composition such as a polarizing plate and a retardation film adhered to a glass substrate is often used. However, optical members such as a polarizing plate and a phase difference plate are likely to shrink due to heat or the like, and shrinkage due to thermal changes occurs. As a result, the base adhesive layer laminated on the optical member cannot follow the shrinkage, and is produced in the interface of Wang Shi. Peeling (so-called floating, peeling), shrinkage of optical components, amp J 的的的的的应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力应力.廿B ... , 7 』 Today, U will have high adhesion, and the adhesive layer of the component 'I state stability is adhered to the optical 4 pieces such as the polarizing plate', thereby suppressing the optical component itself or using optical The material receiving stress is a small, sticky (1) square, original, and increasing method. As the H, the adhesive layer of the material as indicated in the patent document is that the right arsenic arsenic 2 is effective for storing the yttrium high layer. On the other hand, as a method of changing the optical member, it is effective to use a layer of the agent. However, in the past, it has to be shaped: in the case of an excellent adhesive layer, it has a low power relaxation rate. Thus - to the right: the problem that the crosslink density in the adhesive layer is deteriorated. , the strength is low, and the durability is 201245389. Thus, in Patent Documents 2 to 4, the adhesive density of the adhesive layer is not low, and a plasticizer, a liquid paraffin, a urethane elastomer, or the like is added to the acrylic adhesive. As a result, the obtained adhesive composition is moderately soft, and stress relaxation is imparted to the adhesive layer, whereby the light leakage property and durability are desired. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. Adding plasticizer or mobile stone butterfly adhesive composition, the formed adhesive layer will ooze out over time plasticizer and mobile paraffin, and the adhesive durability is low, and the liquid crystal cell of the adhesive is Stained ", various problems are worryed by me. In addition, if the adhesive composition of the acetal elastomer is added, if the compatibility is desired, the amount of the vinegar elastomer is limited, and the right +, s is up! There is a tendency for the improvement of the stress relaxation rate of the folk songs to be insufficient. In the case of the step-by-step, in order to increase the amount of the ammonia-releasing elastomer, the compatibility with the acrylic-based adhesive is changed to 16, and problems such as white turbidity occur. Here, in the prior art, it is difficult for the optical member to fundamentally improve the light leakage resistance and durability of the adhesive layer composed of the adhesive. SUMMARY OF THE INVENTION The object of the present invention is to improve the light leakage resistance and durability. The present invention has been made in view of this. Provided is an adhesive which is excellent in both sides of an optical member suitable for a polarizing plate or the like and an adhesive sheet 4 201245389, which achieves the above object. The present invention provides a gel ratio of 45 to 90%. The sol-based gel permeation chromatography (10) method measures an adhesive having a weight average molecular weight of 6 (US) to 250,000 (Inventive 1). The adhesive agent of the above invention (Invention i) contains a sol portion having a predetermined gel ratio and a predetermined molecular weight, and can have an excellent stress relaxation rate. When the adhesive having such an excellent stress relaxation rate is applied to an optical member such as a polarizing plate, an adhesive sheet excellent in both light leakage resistance and durability can be obtained. In the above invention, it is preferred to contain a (meth)acrylic acid vinegar polymer (α) having a weight average molecular weight of 600,000 to 2.5 million and a second weight average molecular weight of 8 to 3 million. A component obtained by crosslinking a (meth)acrylic acid vinegar polymer (B) (Invention 2). In the above invention (Invention 2), the above i-(meth)acrylate polymer (1) is preferably used. The ratio of the second (fluorenyl) acrylate polymer (B) @ is 5 to 50 parts by mass (Invention 3). In the above invention (Invention 2, 3), the second before the crosslinking is preferred. (Mercapto) acrylate polymer (B), as a constituent component, a monomer containing a reactive functional group is more than i mass% super, and 5 〇 mass% is less than (invention 4). In the above invention (invention 4) 'The above second (fluorenyl) acrylate poly-amp; (B)' is preferably a reaction between the above-mentioned reactive functional group and a crosslinking agent (C) having a reactive parent group, thereby crosslinking (invented 5). 2 'The present invention is an adhesive sheet having a substrate and an adhesive layer, 201245389 The above adhesive layer' is adhered by the above (Invention) to 5) Formation (Invention 6), the above substrate is preferably (Invention 7). 1 1 No. 3', the present invention is a kind of sheeting having 2 peeling sheets And an adhesive layer held by the above-mentioned two-grain release sheet, wherein the adhesive is in contact with two release sheets, characterized in that the above-mentioned adhesive layer is formed by the upper agent (Inventions 1 to 5) (Invention 8). The adhesive of the invention has a predetermined gel ratio and a sol portion having a predetermined molecular weight, and exhibits excellent stress relaxation rate. The adhesive having such excellent stress relaxation rate is suitable for light such as a polarizing plate. In the case of a member, an adhesive sheet excellent in both light leakage resistance and durability can be obtained. [Embodiment] Hereinafter, an embodiment of the present invention will be described. [Adhesive] The adhesive 'gel ratio of the present embodiment is 45 to 9〇%, more preferably from 50 to 80%, particularly preferably from 55 to 70%. If the adhesive 'gel ratio of the present embodiment, that is, the degree of crosslinking is within the above range, the three-dimensional network is crosslinked. Shaped structure can be formed well, with suitable condensation In the case where the optical component is applied, an adhesive sheet excellent in durability can be obtained, and the gel ratio of the (four) agent is the value at the time of sticking (after the aging period). Specifically, the adhesive composition is coated. After the heat treatment, the gel ratio after storage for 7 days in an environment of 23t, 5〇% RH, the gel ratio of the adhesive, and the value of the change before the aging period of 6 201245389 are changed. In the case where the aging period is clear, the gel ratio may be set to be within the above range after storage for 7 days in an environment of 23 ° C. Further, the adhesive of the present embodiment, the sol The weight average molecular weight (Mw; polystyrene conversion) measured by a part of the gel permeation chromatography (GPC) method is from 600,000 to 2.5 million', preferably from 8 to 2 million ke to 10,000. The solvent-soluble portion is as described above, and the above-mentioned three-dimensional network structure in which a relatively large weight average molecular weight is crosslinked has a high degree of freedom in forming a polymer compound & (high-molecular weight component), and the stress relaxation rate of the adhesive is high. For the fine two: it is detailed in this. In the adhesive of the present embodiment, the low molecular weight component forms a three-dimensional network structure through a chemical parent structure (presumed). Thus, the low eight ^

分從溶膠部分中幾乎不能抽出。另-方面，高分子；成I 上述二維網狀構造内’為幾乎不伴隨化學交聯的***，形 .成擬似的交聯狀態（推測）。即，离 |问刀子量的聚合體之間，不伴隨化學的交聯，而是介於上述= k —維網狀構造相互約束 (推測）。由此，本實施形態的黏著劑， 4 有上述的咼分子量成为的自由度高’與以往的只有化璺韦化干父聯構造的黏著劑的 %合相比’具有優良的應力松馳率。 A 午另—方面，中，上述间为子成之間，由於沒有介於化學的耵父聯構造，而是相互、.勺束，因此具有適宜的凝集力（推測）。在此’如溶膠部分的測定時那趕吁邪樣’如本實施形態的黏者劑在溶媒中浸潰狀態，上述三維、准網狀構造膨潤，其網狀變寬（推測）。進一步，高分子量成取刀’由於溶媒的存在自 201245389 由度增加。並且，高分子量八 ,,甘成刀，由於不伴隨化學的交聯構造，其一部份為上述 k _咋 '，周狀構造内抽出結果，溶膠部分，蛊太杳说& J; 本實態的特徵那樣，轉到了高分子量側（推測）的。對此，通常的黏著劑中，、一有劑甲即使加入可塑劑的低分子量成刀门刀子量成分分子間進行的相互纏繞以及化學的交聯構造，作為溶膠部分難以溶出，配比高分子量成分的中間’僅其分子詈分布的供八7 g 可的低77子量側作為溶膠部分而溶出。勉強說的話，以往的黏著劑中，溶膠部分象本實施形態那樣兩分子量化’被被認為只有在凝勝比㈣當低的場合下才可。即’不像本實施形態的那樣，一邊具有所定的凝膠比率’-邊溶膠部分如上述為相當高的高分子量。可以說，在以往的的黏著劑中從未有過的，非常特異的現象。在此，如溶膠部分的重量平均分子量為60萬未滿，就有可能不是如上上述的那樣的低分子量成分形成的三維網狀構造内有高分子量成分***（推測）構造的黏著劑，或者，該推測構造的黏著劑的場合，高分子量成分的分子量太小，介於二維網狀構造的擬似的交聯狀態沒有充分形成 (推測）。由此，在向液晶單元等的黏付的使用條件下，隨著時間的進行，高分子量成分從黏著劑中滲出。其結果，耐久性變低的同時，由於被黏著體污染，所以重復使用性被差。另一方面，溶膠部分的重量平均分子量為超過250 萬時’與交聯形成的三維網狀構造和的相溶性變差，就會有海斯（Haze)值為上升’耐久性等為變差的可能。 8 201245389 溶膠部分的分子ΙΑ# 、特佳為15至5,更佳: n)，較佳為1至2°’ 佳為2.5至4.0。分子量分布（Mw/Mn) /的％合’溶膠部分中的低分子量成分就會比較多，貫際使用的％合，特別其低分子量成分優先渗出等會變差。本實施形態的黏著劑，具有上述凝膠比率，以及具有上述分子量的溶膠部分 I刀由此可以發揮具有適宜的凝集力和優良的應力松馳率。使用具有這樣的特性的黏著劑，在 =於偏振片等的光學部件時1以得到耐漏光性和耐久陡的兩方都優良的黏著片。具有上述的特性的黏著劑，較佳是，從含有重量平均 ^子量為60萬至25Q萬的第K甲基）丙稀酸㈣合物⑴ σ重量千均分子量為8_至⑼萬的第2 (曱㈣聚合物⑴交聯而成的成分的黏著劑而得二並且， =月曰+ (甲基）丙稀酸8旨是指丙締酸I旨以及甲基丙稀酸酿的兩方。其他的類似用語也同樣也含有「共聚合物」的概念。物」上述的黏著劑，較佳是，含有重量平均分子量為6。萬250萬的第！（甲基）丙稀酸g旨聚合物⑴和，重量子量為8GGG至30萬的第2(甲基）丙稀酸醋聚合物⑴和交聯劑⑻的黏著性組成物，特佳進 ==劑⑴的黏著性組成物，進行交聯而獲得。上述中’以往的作為可塑劑使用的低分子量的聚合物，》成化學的交聯形成的三維網狀構造。並且，在該三維網 201245389 狀構造中，有多個高分子量的聚合物***，高分子量的聚合體之間被約束，高分子量的聚合物之間擬似的交聯構造被形成。由此，就會可以得到一邊具有所定的凝膠比率，一邊溶膠部分相當高的高分子量的黏著劑。得到的黏著劑，基於上述的推測構造，可以發揮適宜的凝集力和優良的應力松馳率。以下，對上述黏著性組成物進行說明β 第2(甲基）丙烯酸酯聚合物（β)， (1 )使具有可以與交聯劑（C)反應的官能基（bl)的單體作為構成成分，該聚合物（B )含有的與交聯劑（c )和反應的官能基，實質上僅為官能基（bl)， (2 )較佳是具有與交聯劑（c )的反應性為滿足下述式（j ) 的官能基（bl )的單體以及，較佳是具有與交聯劑（〇的反應性滿足下述式（I )的官能基（b2 )的單體作為構成成分。與交聯劑（C )的反應性：官能基（b2)〈官能基 (Μ ) · · · ( I ) 即’較佳是（2 )的聚合物（Β)中，官能基（Μ ) 的與交聯劑（C )的反應性要比官能基（b 2)的與交聯劑（c ) 的反應性要高。上述（甲基）丙烯酸酯聚合物（A)或（β)，其為烷基的碳數為1至20的（甲基）丙烯酸烷基酯，含有具有與交聯劑（C)反應的官能基的單體（含有反應性官能基的單體），根據需要使用的其他的單體的共聚合物。並且，第 1 (甲基）丙烯酸酯聚合物（A)，較佳也為不含具有上述 10 201245389 反應性官能基的單體。作為烷基的碳數為1至20的（甲基）丙烯酸烧基酯，例如，（甲基）丙烯酸甲酯、（甲基）丙晞酸乙基酯、（甲基）丙烯酸丙基酯、（甲基）丙烯酸η-丁基酯、（甲基）丙烯酸η-戊基酯、（甲基）丙烯酸η-己酯、（甲基）丙烯酸環己基酯、（甲基）丙烯酸2-乙基己基酯、（曱基）丙烯酸異辛基酯、（甲基）丙烯酸η-葵基酯、（曱基）丙烯酸η-月桂基酯、（甲基）丙烯酸肉豆蔻基酯、（甲基）丙烯酸十六烷酰酯以及（曱基）丙烯酸硬脂基酯等。這些可以1種單獨使用，也可以2種以上組合起來使用。另一方面’作為含有反應性官能基的單體，為分子内具有羥基的單體（含有羥基的單體），分子内具有羧基的單體（含有羧基的單體），分子内具有氨基的單體（含有氨基的單體）等為較佳。作為含有羥基的單體，可以例舉（曱基）丙稀酸2-經基乙基酯、（曱基）丙烯酸2 -經基丙基酯、（甲基）丙稀酸3 -羥基丙基酯、（甲基）丙烯酸2 -羥基丁基酯、（甲基）丙烯酸3-羥基丁基酯、（曱基）丙烯酸4-羥基丁基等的（甲基）丙烯酸羥基烷基酯等。這些可以1種單獨使用，也可以2種以上組合起來使用。作為含有羧基的單體，可以例舉，丙烯酸、曱基丙稀酸、巴豆酸、馬來酸、衣康酸、檸康酸等的乙烯性不飽和羧酸。這些可以1種單獨使用，也可以2種以上組合起來使用。 201245389 作為含有氨基單體，可以例舉，Γ田甘、 ”举，（甲基）丙烯酸氨基乙基酷、（甲基）丙稀酸η-丁基_氨基乙基酷等。這些可以i種單獨使用，也可以2種以上組合起來使用。進一步，作為上述其他的罝辦 /、他旳早體，可以例舉，有（曱基）丙烯酸環己基酯等的有脂肪族環的（么』基）丙稀酸酯，有 (曱基）丙烯酸笨基酯等的芳香族璟沾r 石^择壤的（甲基）丙烯酸酯，有丙稀酸醜胺，甲基丙稀醜胺等的非交聯性的㈣酸醜胺、（甲基）丙稀酸N，N-二甲基氨基乙基自旨，（甲基）丙烯酸N，N-二甲基氨基丙基醋等的非交聯性的叔胺基的 (甲基）丙烯酸酯，醋酸乙烯基酯，#乙烯等。這些可以 1種單獨使用，也可以2種以上組合起來使用。並且，第1(曱基）丙稀酸酿聚合物（A)使用的含有反應性官能基（al)的單體以及帛2 (甲基）丙稀酸醋聚合物（B)使用的含有反應性官能基（Μ)單體的選擇，根據與使用的交聯劑（C )和的反應性的關系來決定。詳細下述〇在此，第2(甲基）丙烯酸酯聚合物，較佳為含有八有上述反應性官能基（bl)的單體，超過1質量％，其上限為50質量％未滿。較佳為’含有具有上述反應性官能基（M)的單體5至30質量％，特佳為含有1〇至2〇質量％，更佳為3有12至18質量i透過使含有反應性官能基（bl) 的單體處於上述範圍内，使第甲基）丙烯酸酯聚合物 (B)的父聯的程度變得良好，與第1 (甲基）丙烯酸酯聚。物（A )的組合’將得到的黏著劑的凝膠比率設定在所定 12 201245389 範圍’溶膠部分的重量平圍。其結果，得_二處於所定範侍到的黏者劑，具有適宜的凝集應力松驰率傷肖〇 . 並且’ 早優良。另外，反應性官能基（合右吾有早體的 3有1為1質量％以下，的交聛不“ $ 2(甲基）丙烯酸酿聚合物（B) '充/刀，凝膠比率為所定範圍以下的場合，合、& & 耐久性為變低的可, 會造成 -的T犯。另一方面，含有反應性官能基的單體的含有量為5。質量%以上，和其他的成分（例如，第1(甲基）丙烯酸酯聚合物（A))的相溶性變差。由此，造成的上述的擬似的交聯構造不能充分形成，耐久性變低。並且，如含有反應性官能基（M)單體的含有量的上限30質量％ ’得到的黏著片的耐漏光性更優良。上述（1)的聚合物（B)中的「實質的官能基僅是 (bl )」’是指膠與聯劑（〇反應的其他的官能基，在不妨礙g Sb基（b 1 )和交聯劑（c )的反應性的程度是可以容許的（這種場合’（1)的聚合物（B)和（2)的聚合物（β) 和重復）°即，第2(甲基）丙烯酸酯聚合物（β)不含有具有比上述官能基（bl )與交聯劑（C)的反應性為低的官能基（b2 )單體（含有反應性官能基（b2 )的單體）作為構成成分時為特佳，但是，在含有反應性官能基（b 2 )的單體作為構成成分含有的場合，作為質量比，為含有反應性官能基（bl )的單體的含有量的丨/5以下的量，特別丨/丄〇以下的量較佳。第2(甲基）丙烯酸酯聚合物（B)，在含有反應性官能基（b2 )的單體的質量比，超過含有反應性官能基（bi ) 13 201245389 單體的含有量的1/5時，得到的黏著劑層的耐久性變低。第2 (甲基）丙烯酸酯聚合物（B)中的反應性官能基（b2 ) 如過多，由此形成的三維網狀構造體内，也為反應性官能基（b2 )大量過剩，該三維網狀構造體與第j (甲基）丙烯酸酯聚合物（A )的相溶性就會發生變化（推測广其結果，三維網狀構造體内第1(曱基）丙烯酸酯聚合物（A)不能充分***，凝膠比率就會低於所定範圍。另外，反應性官能基（b2)為大量剩余的三維網狀構造體，該三維網狀構造體***的第1 (曱基）丙烯酸酯聚合物（A)的可動性被過度地限制（推測）。其結果，耐久性為變差。在此’烷基的碳數為i至2〇的（甲基）丙烯酸烷基酯、交聯劑（C)和具有反應的官能基的單體聚合得到的第 2(甲基）丙烯酸酯聚合物（B)的聚合形式，隨機共聚八物也可，嵌段共聚合物也可。〇 A 5 本實施形態中，上述的第物（B)，可以1種單獨使用，用。 2 (甲基）丙烯酸酯類聚八也可以2種以上組合起來使子量至10 子量凝膠第2(曱基）丙稀酸醋聚合物（Β)的重量平均八較佳為_。至3。萬，特佳i萬至2〇萬更佳5萬刀萬。即，第2(甲基）丙稀酸醋聚合物（B)，為低分聚合物成分。並且’本說明書中的重量平均分子量了滲透色譜（GPC)法測定的聚苯乙烯換算的值。第2 (甲基）為上述範圍内時，丙烯酸醋聚合物（B)的重量平均分子本實施形態的黏著性組成物量另的二維 14 201245389 網狀構造形成，有利與具有優良的應力松驰率。即，第2 (甲基）丙烯酸酯聚合物（B)的重量平均分子量為8〇〇〇未滿，良好的三維網狀構造就會得不到，凝膠比率會低於所定範圍。另一方面，第2(曱基）丙烯酸酯聚合物（B) 的重量平均分子量超過3〇萬，相溶性變低，聚合物（B) 形成的三維網狀構造體中的的聚合物（A)的***為不充分，凝膠比率有有低於所定範圍的可能。其結果，耐久性以及重復使用性有變差的可能。第1(曱基）丙烯酸酯聚合物（A)，較佳為，不含有具有與交聯劑（C )反應的官能基的單體作為構成成分，或者含有具有比第2(甲基）丙烯酸酯聚合物（b)的上述官能基（bl )與交聯劑（c)的反應性為低的官能基（al )的單體作為構成成分’並且特佳，不含有具有比上述官能基 (b 1 )與交聯劑（C)的反應性高的官能基的單體作為構成成分。第1(曱基）丙烯酸酯聚合物（A)，也可不含有具有與交聯劑（C)和反應的官能基的單體。但是，含有具有比第2(曱基）丙烯酸酯聚合物（B)的反應性官能基（匕1) 反應性要低的反應性官能基（a 1 )的單體（含有反應性官能基（al)含有單體）時’有較佳的場合。上述聚合物（八）中如含有反應性官能基（al)，可以促進第2(甲基）丙烯酸酯聚合物（B)和交聯劑（C)的反應，或者，使用石夕烷偶聯劑（D)的場合，第1 (甲基）丙烯酸酯聚合物（A) 的反應性官能基（al )為該矽烷偶聯劑（d )反應，得到的 15 201245389 黏著劑的向&晶單it等的玻璃面的黏著耐久性會進一步提高，從而有較佳的場合。 ’ 第ι(甲基）丙烯酸酯聚合物（A)為含有具有上述反應性官能基（al)的單體的場合，其含有量，通常質量 %以下，15質量％以下為較佳，10質量％以下為特佳。含有反應性官能基（al)單體的含有量超過2〇質量％，第^ (甲基）丙烯酸酯聚合物（A)的玻璃転移溫度（Tg)過高得到的黏著劑就會得不到需要的應力松驰率的可能。並且，從黏著劑的重復使用性的賦予的觀點，含有反應性官能基 (al)單體的含有量15質量％以下為較佳。另外，在與第2(曱基）丙烯酸酯聚合物（b)含有具有反應性官能基（bl)的單體的比較中，第甲基）丙烯酸醋聚合物（A)含有的反應性官能基（al )的單體的在該第1(曱基）丙烯酸酯聚合物（A)中的比率，與第2(甲基）丙烯酸酯聚合物（B)的含有反應性官能基（bl)的單體的在該第2 (曱基）丙稀酸酿聚合物（B)中的比率要小為較佳。由此，第1 (曱基）丙烯酸酯聚合物（A)含有的反應性官能基（a 1 )和交聯劑（C)和的反應被抑製，第2 (曱基）丙烯酸酯聚合物（B)含有的反應性官能基（bl ) 和交聯劑（C)就可以進行確實的反應。由此，得到的黏著劑的凝膠比率以及溶膠部分的重量平均分子量就會處於所定值内。第1(曱基）丙烯酸酯聚合物（A)，以在分子内不含有與交聯劑（C)的反應性與第2 (曱基）丙烯酸酯聚合物 16 201245389 (B)的反應性官能基（bl ) $等或以上的官能基的單體為較佳’但是，在含有的場合’在分子内含有的該官能基的單體的含有量’在聚合物（A)中為1質量％以下為較佳，特別0. 5質量％以下為較佳。該單體的含有量超過丄質量％時’應該優先反應的第2(曱基）丙烯酸酯聚合物⑴和交聯劑（C)的反應有可能受阻礙。在此，院基的碳數為1至20的（曱基）丙稀酸烧基酯與含有反應性官能基的單體聚合得到的第丨（曱基）丙烯酸醋聚合物u)的聚合形式，隨機共聚合物也可，嵌段共聚合物也可。本實施形態中，上述的第1 (甲基）丙稀酸酉旨聚合物 ⑴，可以1種單獨使用，也可以2種以上組合起來使用。第1(曱基）丙烯酸酯聚合物⑴的重量平均分子量較佳為60萬至250萬，特佳8〇萬至22〇萬更佳⑽萬至200萬。即，第！（甲基）丙烯酸醋聚合物⑴，為高分子量聚合物成分。、‘· /〜王里丁 q勿、-t 為上述範圍内時，第2(甲基）丙稀酸醋聚合物（B)开的三維網狀構造内該第1 (甲基）丙烯酸酯聚合物⑴ 以良好地插人，該聚合物⑴2個以上，以擬似的交聯造為媒介，在有某種程度的自由度的狀態被約束⑶^ 另外’聚合物⑴，如上述的那樣具有比較大的分子量介於聚合物（B)形成的三維網狀構造體一邊維持擬似的聯狀態，一邊作為分子鏈具有高度的自由度。由此，形 17 201245389 的黏著劑’具有適宜的凝集力和優良的應力松馳率，其結果，耐漏光性優良，另外，高溫條件下的黏著耐久性也充分，從而可以防止浮起以及剝離等。在此，第1(甲基）丙烯酸酯聚合物（A)的重量平均分子量為60萬未滿時，上述的擬似的交聯構造的形成有為不充分的場合，得到的黏著劑的凝膠比率會低於所定範圍，耐久性以及重復使用性有可能變差。另外，第丨（甲基）丙烯酸酯聚合物（A)的重量平均分子量超過25〇萬時，與第2 (曱基）丙烯酸酯聚合物（B)等的相溶性變差，有海斯（Haze)值上升，得不到需要的應力松馳率的可能。對於第1 (甲基）丙烯酸酯聚合物（A ) i 〇〇質量份，第2 (甲基）丙烯酸酯聚合物（B) @比率，5至5〇質量份為較佳’ 5至40質量份為更佳，} 〇至3〇質量份為特佳。從具有上述比率含有第丨（曱基）丙烯酸酯聚合物（八）、及第2 (甲基）丙烯酸酯聚合物（b )的黏著性組成物中，得到的黏著劑，其中第2(曱基）丙烯酸酯聚合物（b)(低分子量聚合物）以交聯劑（C)為媒介，形成三維網狀構造， =三維網狀構造’為第丨（甲基）丙烯酸酯聚合物（a)(高分子量聚合物）2分子以上為***的構造聚合體⑴之具有某種程度的自由度的狀態下，形成被約束的擬似的交聯構造(推測）。由此，得到的黏著劑具有所定範圍的凝膠比率，並且溶膠部分的重量平均分子量為所定範圍並且，每樣的條件滿足黏著劑，被認為得到上述推測構造’其結果，既具有適宜的凝集力，又具有優良的應力 18 201245389 松馳率。由此，得到的黏著劑耐生以及耐漏光性優良。作為交聯劑（c)，異氰酸炉盤 ^ 錢酉曰類交聯齊卜環氧類交聯劑、氮雜環丙烷類交聯劑以及 ^ m屬蝥合類交聯劑等為較佳。異氰酸酯類交聯劑，至少含有麥 ^ &異氰酸酯化合物。聚、亂酸酯化合物’可以例舉亞苄_ 土一異氰酸酯、二苯基甲規二異氰酸酯、射二甲笑其-s名私龄妒土一異虱馱酯等的芳香族聚異氰 ^ Λ 〜如肪私聚異氰酸酯、異氟酮一異氰酸酯、加氫二苯基甲俨 τ坑—異鼠酸酯等的酯環類 ^異亂酸酯等，以及這歧的缩- _ 幻雒一脲體、異氰脲酸酯，進一步乙—醇、丙稀二醇、新六其-辟㊇戊基一醇、三羥甲基丙烷以及蓖麻油等的低分子活性氫含有化合物的加成物等。作為環氧類交聯劑，可以例舉卜3_雙（ν，ν，_二縮 :甘油基氨基甲基）環己烧、N，N，r，r _四縮水甘油 —m-對二甲苯基二胺、乙二醇二縮水甘油基醚、卜6_己 —醇一縮水甘油基趟、二雜甲其；— — 土呢一氬甲基丙烷二縮水甘油基醚、二縮水甘油基苯胺以及二縮水甘油基胺等。，作為氮雜環丙燒類交聯劑，可以例舉二苯基甲院4， 4/雙（卜氮雜環丙院甲酰胺）、三經甲基丙烧三p氮雜 “丙烷丙酉“曰、四羥甲基甲烷三冷-氮雜環丙烷丙酸酯、甲苯2,4-雙（卜氮雜環丙院甲酸胺）、三乙稀三聚氛氛、雙異異苯二甲基卜（2_甲基氣雜環丙院）、三甲基氮雜環丙烷）膦、：r翔甲其系# 一〇 , 〇啊一羡甲基丙烷二；3—(2一甲基氮雜環丙烷）丙酸酯等。金屬螯合類交聯劑中，有金屬原子為鋁，錯，鈦，鋅， 19 201245389 鐵，錫等的螯合化合物，從性作為鋁螫犯來看鋁螯合化合物為較佳。 rF為銘螯合化合物可以例舉乙酸豳、™w 一異丙氧基鋁單油醇乙酰單油酸星7甘知乙酰乙酸鹽、單異丙氧基鋁越、 ^乙㈣、：異丙氧基料月桂乙醜乙酸 ;異=單硬脂基乙醜乙酸鹽以及二異丙氧基- 早呉硬月曰基乙酰乙酸鹽等。 :聯劑（c)的含有量，為該交聯劑（。的交聯性基及’異氰酸醋基）對第2(甲基）丙烯酸醋聚合物⑷ 5…基（bl)(例如，羥基）的量，通常為0.05 5::的量’較佳為(M至3.5當量的量，特佳〇 3至右田$的量。上述交聯性基的量為0.1當量未滿的場合， :時得到的黏著劑的凝膠比率為45%未滿，有可能不能發充分的凝集力。另外，上述交聯性基的量為0. 3當量以上時’得到的黏著劑的耐久性的優良。另一方面，上述交聯!生基的量為3 . 5當量以下時，得到的黏著劑的重復使用The fraction is almost impossible to extract from the sol portion. On the other hand, the polymer; in the above two-dimensional network structure, is inserted into a quasi-like cross-linked state (presumed) with almost no chemical cross-linking. That is, the polymer of the amount of the knife is not constrained by chemical cross-linking, but is interposed (presumably) between the above-mentioned = k-dimensional network structures. Therefore, the adhesive of the present embodiment 4 has a high degree of freedom in the molecular weight of the bismuth described above, and has an excellent stress relaxation ratio as compared with the conventional % of the adhesive of the hydrazine-based dry-parent structure. . In the case of A noon, in the middle, the above-mentioned inter-sub-series has a suitable cohesive force (presumed) because there is no chemical 耵-family structure, but a mutual, scoop. In the case where the sol portion is measured, the viscous agent is immersed in the solvent, and the three-dimensional and quasi-mesh structures are swollen, and the mesh is widened (presumed). Further, the high molecular weight forming blade ' increased from 201245389 due to the presence of the solvent. Moreover, the high molecular weight VIII, Gancheng knife, because it is not accompanied by a chemical cross-linking structure, a part of it is the above k _ 咋 ', the result of the extraction in the peri-structure, the sol part, 蛊太杳说 &J; In the same way as the real state, it is transferred to the high molecular weight side (presumed). In this regard, in the usual adhesive, a certain amount of a low molecular weight Knife Knife component of the plasticizer is intertwined and chemically crosslinked, and it is difficult to dissolve as a sol portion, and the ratio is high molecular weight. In the middle of the component, only the side of the molecular enthalpy distribution, which is y 7 g, is available as a sol moiety. If it is reluctant to say, in the conventional adhesive, the sol portion is considered to have a molecular weight of 'the same as the embodiment', and it is considered that it is only when the ratio (4) is low. That is, unlike the present embodiment, it has a predetermined gel ratio, which is a relatively high molecular weight as described above. It can be said that there has never been a very specific phenomenon in the past adhesives. Here, if the weight average molecular weight of the sol portion is less than 600,000, the adhesive having a high molecular weight component insertion (presumed) structure in the three-dimensional network structure formed of the low molecular weight component as described above may not be used, or In the case of the adhesive having the estimated structure, the molecular weight of the high molecular weight component is too small, and the pseudo-crosslinked state of the two-dimensional network structure is not sufficiently formed (presumed). Thereby, the high molecular weight component oozes out from the adhesive as time passes, under the conditions of use for adhesion to the liquid crystal cell or the like. As a result, the durability is lowered and the adherend is contaminated, so that the reusability is poor. On the other hand, when the weight average molecular weight of the sol portion is more than 2.5 million, the compatibility with the three-dimensional network structure formed by crosslinking is deteriorated, and the Haze value is increased, and the durability is deteriorated. Possible. 8 201245389 The molecular part 溶胶# of the sol moiety, particularly preferably 15 to 5, more preferably: n), preferably 1 to 2°' is preferably 2.5 to 4.0. The molecular weight distribution (Mw/Mn) /% of the sol portion of the sol component is relatively large, and the % used in the continuous use, particularly the low molecular weight component preferentially bleeds out, and the like. The adhesive of the present embodiment has the gel ratio and the sol portion I having the above molecular weight, thereby exhibiting an appropriate cohesive force and an excellent stress relaxation rate. When an optical member having such characteristics is used, it is preferable to obtain an adhesive sheet excellent in both light leakage resistance and durability. The adhesive having the above characteristics is preferably a K-methyl acrylic acid (tetra) compound having a weight average of 600,000 to 250,000 ketones (1) σ weight average molecular weight of 8 to 90,000. The second (曱) polymer (1) is obtained by crosslinking the components of the polymer, and = 曰 + (methyl) acrylic acid 8 means that the propionic acid I and the methyl acrylate are brewed. The other similar terms also contain the concept of "copolymer". The above adhesive preferably contains a weight average molecular weight of 6. 0.25 million of the (!) (meth) acrylic acid G-adhesive polymer (1) and an adhesive composition of a second (meth)acrylic acid vinegar polymer (1) and a crosslinking agent (8) having a weight of 8 GGG to 300,000, and an adhesion of the agent (1) The composition is obtained by cross-linking. The above-mentioned 'low-molecular-weight polymer used as a plasticizer in the past' is a three-dimensional network structure formed by chemical cross-linking. Further, in the three-dimensional network 201245389-like structure, Multiple high molecular weight polymer inserts, high molecular weight polymers are constrained, high molecular weight polymerization A pseudo-crosslinking structure is formed between the objects, whereby a high molecular weight adhesive having a predetermined gel ratio and a relatively high sol fraction can be obtained. The obtained adhesive can be based on the above-mentioned estimated structure. Appropriate cohesive force and excellent stress relaxation rate are exerted. Hereinafter, the above-mentioned adhesive composition will be described. β 2 (meth) acrylate polymer (β), (1) has a crosslinking agent (C) a monomer of the reacted functional group (bl) as a constituent component, and the polymer (B) and the functional group reactive with the crosslinking agent (c) are substantially only a functional group (bl), (2) It is preferred that the monomer having a reactivity with the crosslinking agent (c) is a functional group (b1) satisfying the following formula (j), and preferably having a reactivity with a crosslinking agent (the reactivity of hydrazine is satisfied by the following formula ( The monomer of the functional group (b2) of I) is a constituent component. Reactivity with the crosslinking agent (C): functional group (b2) <functional group (Μ) · · · (I) That is, preferably (2) In the polymer (Β), the reactivity of the functional group (Μ) with the crosslinking agent (C) is higher than that of the functional group (b 2) The crosslinking agent (c) has high reactivity. The above (meth) acrylate polymer (A) or (β) is an alkyl (meth) acrylate having an alkyl group having 1 to 20 carbon atoms. a monomer containing a functional group reactive with a crosslinking agent (C) (a monomer having a reactive functional group), a copolymer of another monomer used as needed, and a first (meth) acrylate The polymer (A) is preferably also free of a monomer having a reactive functional group having the above 10 201245389. A (meth)acrylic acid ester having a carbon number of 1 to 20 as an alkyl group, for example, (methyl) Methyl acrylate, ethyl (meth)propionate, propyl (meth)acrylate, η-butyl (meth)acrylate, η-amyl (meth)acrylate, (methyl) Η-hexyl acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, η-ylide (meth) acrylate, (曱N-lauryl acrylate, myristyl (meth) acrylate, hexadecanoyl (meth) acrylate and Yue-yl) acrylate, stearyl acrylate and the like. These may be used alone or in combination of two or more. On the other hand, the monomer having a reactive functional group is a monomer having a hydroxyl group in the molecule (a monomer having a hydroxyl group), a monomer having a carboxyl group in the molecule (a monomer having a carboxyl group), and having an amino group in the molecule. A monomer (a monomer containing an amino group) or the like is preferred. The hydroxyl group-containing monomer may, for example, be a 2-hydroxyethyl acrylate, a 2-ethylidene acrylate, or a 3-hydroxypropyl (meth) acrylate. A (meth)acrylic acid hydroxyalkyl ester such as an ester, 2-hydroxybutyl (meth)acrylate, 3-hydroxybutyl (meth)acrylate or 4-hydroxybutyl (meth)acrylate. These may be used alone or in combination of two or more. The carboxyl group-containing monomer may, for example, be an ethylenically unsaturated carboxylic acid such as acrylic acid, mercapto acrylic acid, crotonic acid, maleic acid, itaconic acid or citraconic acid. These may be used alone or in combination of two or more. 201245389 As the amino group-containing monomer, for example, Γ田甘, ”, (meth)acrylic acid aminoethyl cool, (methyl)acrylic acid η-butyl_aminoethyl cool, etc. When it is used alone, it may be used in combination of two or more kinds. Further, as the above-mentioned other materials, it may be exemplified by an aliphatic ring such as (cyclo)cyclohexyl acrylate. Acrylate, an aromatic sulfonate such as a (meth)acrylic acid stupyl ester, a (meth) acrylate of a sulphate, a succinic acid, a methyl acetamide, or the like Non-crosslinking (tetra) acid ugly amine, (methyl) acrylic acid N,N-dimethylaminoethyl, non-crossing of (meth)acrylic acid N,N-dimethylaminopropyl vinegar The (meth) acrylate of the tertiary amino group, vinyl acetate, # ethylene, etc. These may be used alone or in combination of two or more. Further, the first (fluorenyl) acrylic acid The reactive functional group (al)-containing monomer used in the brewing polymer (A) and the 帛2 (meth)acrylic acid vinegar polymer (B) The selection of the reactive functional group (fluorene)-containing monomer to be used is determined according to the relationship with the reactivity of the crosslinking agent (C) used. Details of the following are the polymerization of the second (meth) acrylate. Preferably, the monomer having eight reactive functional groups (bl) is contained in an amount of more than 1% by mass, and the upper limit is 50% by mass or less. Preferably, 'the one having the above reactive functional group (M) is contained. 5 to 30% by mass, particularly preferably 1 to 2% by mass, more preferably 3 to 12 to 18% by mass, and the monomer having a reactive functional group (bl) is in the above range, so that the first The degree of the parent of the acrylate polymer (B) becomes good, and the combination of the first (meth) acrylate polymer (A) 'sets the gel ratio of the obtained adhesive to the predetermined 12 201245389 The range 'the weight of the sol part is squared. As a result, the viscous agent in the given range has the appropriate agglutination stress relaxation rate and is excellent early. In addition, the reactive functional group The right one has an early body of 3 with 1 being 1% by mass or less, and the exchange is not "$2 (methyl) The olefinic styrene polymer (B) is a charge/knife, and when the gel ratio is less than or equal to the predetermined range, the durability of the compound, &&&&&&&&&&> The content of the monomer having a functional group is 5.5% by mass or more, and the compatibility with other components (for example, the first (meth) acrylate polymer (A)) is deteriorated. The pseudo-crosslinked structure is not sufficiently formed, and the durability is lowered. Further, the adhesive sheet obtained by containing the upper limit of the content of the reactive functional group (M) monomer is 30% by mass. The light-resistant sheet obtained is more excellent in light leakage resistance. The "substantial functional group is only (bl)" in the polymer (B) means that the gum and the binder (other functional groups of the ruthenium reaction do not interfere with the g Sb group (b 1 ) and the crosslinking agent) The degree of reactivity of (c) is tolerable (in this case '(1) polymer (B) and (2) polymer (β) and repeat) °, ie, 2 (meth) acrylate The polymer (β) does not contain a functional group (b2) monomer having a lower reactivity than the above functional group (b1) and the crosslinking agent (C) (containing a counter When the monomer having a functional group (b2) is particularly preferable as a constituent component, when a monomer having a reactive functional group (b 2 ) is contained as a constituent component, the reactive functional group is contained as a mass ratio. The amount of the monomer content of (b1) is preferably 丨/5 or less, and particularly preferably 丨/丄〇 or less. The mass ratio of the second (meth) acrylate polymer (B) to the monomer containing the reactive functional group (b2) exceeds 1/5 of the content of the monomer containing the reactive functional group (bi) 13 201245389 At the time, the durability of the obtained adhesive layer becomes low. If the reactive functional group (b2) in the second (meth) acrylate polymer (B) is too large, the three-dimensional network structure formed therein is also excessively large in the reactive functional group (b2). The compatibility of the network structure with the j-th (meth) acrylate polymer (A) changes (presumably, the result is a 1st (fluorenyl) acrylate polymer (A) in a three-dimensional network structure. Insufficient insertion, the gel ratio will be lower than the specified range. In addition, the reactive functional group (b2) is a large number of remaining three-dimensional network structures, and the first (mercapto) acrylate is inserted into the three-dimensional network structure. The mobility of the substance (A) is excessively restricted (presumed). As a result, the durability is deteriorated. Here, the alkyl group of the alkyl group having a carbon number of i to 2 Å and a crosslinking agent (C) A polymerized form of the second (meth) acrylate polymer (B) obtained by polymerizing a monomer having a reactive functional group, may be optionally copolymerized with eight or a block copolymer. 〇A 5 In the present embodiment, the above-mentioned first object (B) can be used alone or in combination. The acrylate type poly octa can also be used in combination of two or more kinds so that the weight average of the second (mercapto) acrylic acid vinegar polymer (Β) is preferably _. to 30,000. , the best weight is 10,000 to 2 million and more preferably 50,000 knives. That is, the 2nd (meth) acrylate vinegar polymer (B) is a low-component polymer component, and 'the weight average molecular weight in the present specification The polystyrene-equivalent value measured by the permeation chromatography (GPC) method. When the second (methyl) is in the above range, the weight average molecular weight of the acrylic acid vinegar polymer (B) is the other two. Dimensionality 14 201245389 The formation of a network structure is advantageous and has an excellent stress relaxation rate. That is, the weight average molecular weight of the 2nd (meth) acrylate polymer (B) is 8 〇〇〇 underfill, a good three-dimensional network The structure will not be obtained, and the gel ratio will be lower than the specified range. On the other hand, the second (fluorenyl) acrylate polymer (B) has a weight average molecular weight of more than 30,000, and the compatibility is low, and the polymer ( B) The insertion of the polymer (A) in the formed three-dimensional network structure is not charged The gel ratio may be lower than the predetermined range. As a result, durability and reusability may be deteriorated. The first (fluorenyl) acrylate polymer (A) preferably contains no The monomer of the functional group reacted with the crosslinking agent (C) as a constituent component or contains a reaction of the above functional group (bl) and the crosslinking agent (c) having a ratio of the second (meth) acrylate polymer (b) A monomer having a low functional group (al) is particularly preferred as a constituent component, and does not contain a monomer having a functional group having higher reactivity than the functional group (b 1 ) and the crosslinking agent (C). The first (fluorenyl) acrylate polymer (A) may not contain a monomer having a functional group reactive with the crosslinking agent (C). However, a monomer containing a reactive functional group (a 1 ) having a lower reactivity than a reactive functional group (匕1) of the second (fluorenyl) acrylate polymer (B) (containing a reactive functional group ( When al) contains a monomer, there is a preferred occasion. The above polymer (VIII) may contain a reactive functional group (al) to promote the reaction of the second (meth) acrylate polymer (B) and the crosslinking agent (C), or may be coupled using an oxalate. In the case of the agent (D), the reactive functional group (al) of the first (meth) acrylate polymer (A) is reacted with the decane coupling agent (d), and the obtained < crystal of the adhesive agent of 201224389 The adhesion durability of the glass surface of a single or the like is further improved, and thus there is a preferable occasion. When the (1) (meth) acrylate polymer (A) is a monomer containing the reactive functional group (al), the content thereof is usually not more than 5% by mass, preferably 15% by mass or less, and 10% by mass. % below is especially good. When the content of the reactive functional group (al) monomer is more than 2% by mass, the glass transition temperature (Tg) of the (meth) acrylate polymer (A) is too high to obtain an adhesive. The possibility of stress relaxation rate is required. Further, from the viewpoint of imparting reusability of the adhesive, the content of the reactive functional group (al) monomer is preferably 15% by mass or less. Further, in the comparison with the second (fluorenyl) acrylate polymer (b) containing a monomer having a reactive functional group (b1), the reactive functional group contained in the (meth)acrylic acid vinegar polymer (A) The ratio of the monomer of (al) in the first (fluorenyl) acrylate polymer (A) to the reactive functional group (bl) of the second (meth) acrylate polymer (B) The ratio of the monomer in the second (indenyl) acrylic acid-coated polymer (B) is preferably small. Thereby, the reaction of the reactive functional group (a 1 ) and the crosslinking agent (C) contained in the first (fluorenyl) acrylate polymer (A) is suppressed, and the second (fluorenyl) acrylate polymer ( B) The reactive functional group (bl) and the crosslinking agent (C) are contained to carry out a reliable reaction. Thereby, the gel ratio of the obtained adhesive and the weight average molecular weight of the sol portion are within a predetermined value. The first (fluorenyl) acrylate polymer (A) does not contain a reactivity with the crosslinking agent (C) in the molecule and a reactive function of the second (fluorenyl) acrylate polymer 16 201245389 (B) A monomer having a functional group of (b1) or more is preferably 'however, the content of the monomer of the functional group contained in the molecule is 1 mass in the polymer (A). 5%质量以下以下优选优选。 Preferably, the following is preferably 0.5% by mass or less. When the content of the monomer exceeds 丄 mass%, the reaction of the second (fluorenyl) acrylate polymer (1) and the crosslinking agent (C) which should be preferentially reacted may be hindered. Here, the polymerization form of the fluorene (mercapto)acrylic acid vinegar polymer u) obtained by polymerizing a monomer having a carbon number of 1 to 20 (mercapto) propyl acrylate and a reactive functional group-containing monomer Random copolymers are also available, and block copolymers are also possible. In the present embodiment, the first (meth)acrylic acid-based polymer (1) may be used singly or in combination of two or more kinds. The weight average molecular weight of the first (fluorenyl) acrylate polymer (1) is preferably from 600,000 to 2,500,000, particularly preferably from 80,000 to 2,200,000 to more preferably from 10,000 to 2,000,000. That is, the first! The (meth)acrylic acid vinegar polymer (1) is a high molecular weight polymer component. , the first (meth) acrylate polymer in the three-dimensional network structure of the second (meth) acrylate vinegar polymer (B) opened in the range of the above-mentioned range (1) In order to insert well, the polymer (1) is more than two, and it is mediated by pseudo-crosslinking, and is restrained in a state of a certain degree of freedom. (3) ^ Further 'polymer (1), which is relatively large as described above The molecular weight of the three-dimensional network structure formed by the polymer (B) maintains a pseudo-joined state while having a high degree of freedom as a molecular chain. Therefore, the adhesive of the shape of 2012 2012389 has an appropriate cohesive force and an excellent stress relaxation rate, and as a result, the light leakage resistance is excellent, and the adhesion durability under high temperature conditions is also sufficient, thereby preventing floating and peeling. Wait. Here, when the weight average molecular weight of the first (meth) acrylate polymer (A) is less than 600,000, the formation of the above-mentioned pseudo-crosslinking structure is insufficient, and the obtained gel of the adhesive is obtained. The ratio will be lower than the specified range, and durability and reusability may be deteriorated. In addition, when the weight average molecular weight of the fluorene (meth) acrylate polymer (A) exceeds 250,000, the compatibility with the second (fluorenyl) acrylate polymer (B) or the like is deteriorated, and there is Hayes ( The value of Haze) rises and the required stress relaxation rate is not obtained. For the 1 (meth) acrylate polymer (A ) i 〇〇 by mass, the 2 (meth) acrylate polymer (B) @ ratio, 5 to 5 Å by mass is preferably '5 to 40 by mass It is better, and it is especially good to 〇 to 3 〇. An adhesive obtained from an adhesive composition having a ruthenium (fluorenyl) acrylate polymer (VIII) and a second (meth) acrylate polymer (b) in the above ratio, wherein the second (曱) Acrylate polymer (b) (low molecular weight polymer) is crosslinked with crosslinker (C) to form a three-dimensional network structure, = three-dimensional network structure 'is a third (meth) acrylate polymer (a (High molecular weight polymer) Two or more molecules form a constrained pseudo-crosslinked structure (presumed) in a state in which the inserted structural polymer (1) has a certain degree of freedom. Thus, the obtained adhesive has a gel fraction of a predetermined range, and the weight average molecular weight of the sol portion is within a predetermined range, and each of the conditions satisfies the adhesive, and it is considered that the above-mentioned speculated structure is obtained, and the result is that it has suitable agglutination. Force, and has excellent stress 18 201245389 slack rate. Thereby, the obtained adhesive is excellent in resistance to light and light leakage. As the crosslinking agent (c), the isocyanic acid furnace is a cross-linked epoxy crosslinking agent, an aziridine crosslinking agent, and a methane-based crosslinking agent. good. The isocyanate crosslinking agent contains at least a mai & isocyanate compound. The poly(polyester compound) can be exemplified by an aromatic polyisocyanate such as benzidine _ earth-isocyanate, diphenylmethane diisocyanate, or dimethylidene-s-named smectite-isodecyl ester. 〜 ~ such as fat polyisocyanate, isoflurane monoisocyanate, hydrogenated diphenylmethyl hydrazine pit - iso-rhodium ester ester esters, such as ester esters, and the like - _ 雒雒Urea, isocyanurate, further ethylene-alcohol, propylene glycol, neo-hexa-p-pentyl monool, trimethylolpropane, castor oil, etc. Low molecular weight active hydrogen containing compound adduct Wait. The epoxy-based crosslinking agent may, for example, be a bis(ν, ν, _ dimethyl glycerylaminomethyl) cyclohexane, N, N, r, r _ tetraglycidyl-m-pair Tolyldiamine, ethylene glycol diglycidyl ether, hexamethylene alcohol monoglycidyl hydrazine, dihypothyridine; - terpino-argonmethylpropane diglycidyl ether, diglycidyl Aniline and diglycidylamine. As the azacyclopropane-based crosslinking agent, there may be mentioned diphenylmethyl 4, 4/bis (azacyclopropanecarboxamide), and tris-methylpropane tris-aza-propane propane. "曰, tetrakis hydroxymethane tri-cool-azetane propionate, toluene 2,4-bis (azacyclopropylamine formate), triethylene trimerization, bisisoisophthalate Kebu (2_methyl gas heterocyclic propane), trimethyl aziridine phosphine, :rxiang A, its #一〇, 〇羡羡羡 methyl propane II; 3-(2-methyl Aziridine) propionate and the like. Among the metal chelate crosslinking agents, the metal atom is aluminum, erbium, titanium, zinc, and 19 201245389 chelate compounds such as iron and tin, and the aluminum chelate compound is preferred as the aluminum bismuth. rF is a chelating compound, and examples thereof include cerium acetate, TMw-isopropoxy aluminum, monooleyl acetyl monooleate, 7 acetyl acetoacetate, monoisopropoxy aluminum, ^B (tetra), and isopropyl Oxygen material, lauric acid, ugly acetic acid, iso-monostearyl ethyl acetonate, and diisopropoxy-previously, hard sulfhydryl acetoacetate. The content of the crosslinking agent (c) is the crosslinking agent (crosslinking group and 'isocyanate group) to the second (meth)acrylic acid vine polymer (4) 5... group (bl) (for example) The amount of the hydroxy group is usually 0.05 5:: The amount 'is preferably (the amount of M to 3.5 equivalents, the amount of the preferred 〇3 to the right field $. The amount of the above crosslinkable group is 0.1 equivalent of less than the case) When the gel ratio of the adhesive obtained is 45% or less, a sufficient cohesive force may not be obtained. Further, when the amount of the crosslinkable group is 0.3 or more, the durability of the obtained adhesive is obtained. On the other hand, the above-mentioned cross-linking! When the amount of the base is 3.5 or less, the obtained adhesive is repeatedly used.

Mu’進_步1() #量以下時’交聯劑（c)僅用於與反應性官能基（bl )反應’彳能得到應力松驰率優良的黏著劑。另外，本實施形態中，作為交聯劑（c )，在與反應性官能基（bl)以及反應性官能基（al)的兩方的反應性的關系為一致的交聯劑時，也可以並用。從第2 (甲基）丙烯酸酯聚合物（B)形成的三維網狀構造的控製容易的觀點’例如就象說僅使用異氟酸酯類交聯劑那樣，僅使用i 種類的交聯劑為較佳，進一步，作為化合物僅使用1個交 20 201245389 聯劑為特佳。在此，關於交聯劑（c)與（甲基）丙烯酸醋聚合物 (A)以及（B)含有反應性官能基的單體的組合，在交聯劑（C)為異氰酸酯類交聯劑的場合，含有聚合物（a )的反應性官能基（al)的單體’為含有羧基的單體，作為含有聚合物（B)的反應性官能基（bl)單體，含有羥基的單體或者氨基的單體為較佳。另一方面，交聯劑（C)為環氧類交聯劑，氮雜環丙烷類交聯劑或者金屬螯合類交聯劑的場合，作為含有聚合物（A)的反應性官能基（al)的單體’含有羥基的單體為較佳，作含有為聚合物（β)的反應性官能基的單體，以含有羧基的單體為較佳。從交聯劑（C)和聚合物（Β)之間形成的鍵的柔軟性，以及交聯反應的穩定性，進一步，從聚合物（Α)的反應性基與石夕烧偶聯劑（D)進行適宜的反應’對得到的黏著劑的凝集力提高有利的觀點，交聯劑（〇為異氰酸_類交聯劑，含有聚合物U)的反應性官能基（al)的單體為含有緩基的單體，含有聚合物⑷的反應性官能基（bl)單體為含有羥基的單體，不使用含有反應性官能基（b2 )的單體為特佳。本實施形態的黏著性組成物，較佳為，進一步含有矽烷偶聯劑（D ) ^如含有這種矽烷偶聯劑（D )，在第i (甲基）丙烯酸S旨聚合物（A)有羧基的的場合，矽烷偶聯劑（d) 的有機反應性基等和第K甲基）丙烯聚合物（A)的 21 201245389 幾基反應，另一方面，矽烷傜碎篝料姑楚葬劑（D)的烷氧基甲矽烷基荨對玻璃基板尊的被黏著體面 W , a . 作用。由此，例如偏振片向液日日玻璃卓兀等貼合的場苟黏者劑和液晶破璃輩开之間的密著性會更為良好。作為這種石夕燒偶聯劑（D)，為分子内有至少—個烧氧基曱矽烷基的有機矽化合物，兴黏者劑成分和的相溶性為好，並且有光透過性，例如實 ^ A 貫質上透明之物為適宜。這劑⑻的添加量，對第"甲基 “物⑴!。。質量份為〇.〇1至。5質量至0.3質量份為特佳。 1主U.Ub 作為矽烷偶聯劑（D)的且體彻工 π m 扪，、體例子’可以例舉乙烯基 —甲氧基矽烷、乙烯基三乙氧基一 /也f暴丙烯酰氧丙基二甲氧基石夕院等的聚合性不飽和基含有石夕化合物丙氧基丙基三甲氧基石夕烷、2_ (3, 4_環氧環己基）乙基三甲氧基矽烷等的有環氧構造的 σ物，3-虱基丙基三甲氧基矽烷、Ν- ( 2-氨基乙基）_3_畜其 N r9 . , 土） d虱基丙基二甲氧基矽烷、 N-(2-氰基乙基）_3_氨基丙基 T基一甲氧基矽烷等的含有虱基矽化合物，3_氣丙基三甲 _ r 乳*矽烷、3~異氰酸酯丙基 —乙氧基矽烷等。這些，可以丨丄種早獨使用’也可以2種以上組合起來使用。類勤从述黏著杜組成物中’根據需要的，可以添加丙烯酸類點者劑通常使用的各種添加劑，例如黏著賦予劑，氧化 :止劑’紫外線吸收劑，光安定劑，柔軟劑，充填劑，带電防止劑，折射率調整劑等。 22 201245389 上述黏著性組成物，第i (甲基）丙烯酸酯聚合物（A ) 和第2 (曱基）丙烯酸酯聚合# (B)混合的同時，可以在任意的奴階添加交聯劑（c )以及根據需要的矽烷偶聯劑 (D)° 作為較佳具體例，（甲基）丙烯酸酯聚合物（A)以及（B)可以用通常的自由基聚合法進行調製。（甲基）丙烯I δθ聚合物（A )以及（b )的聚合，可以根據需要使用聚合引發劑，用溶液聚合法進行製造。作為聚合溶媒，可以例舉醋酸乙基酯、醋酸n_丁基酯、醋酸異丁基酯、甲苯、丙酮、己烷以及甲基乙基酮等，也可2種以上並用。作為聚合引發劑，可以例舉偶氮類化合物以及有機過氧化物等’也可2種以上並用。作為偶氣類化合物，可以例舉2，2 -偶氮雙異丁腈、2，2,-偶氮雙（2—甲基丁腈）、 1’1-偶氮雙（環己烷卜腈）、2，2，_偶氮雙（2，4~二曱基腈）、2 ’ 2’ —偶氮雙（2，4-二甲基4—甲氧基腈）、二曱基2，2’ -偶氮雙（2-甲基丙酸）、4，4, _偶氮雙（咎氰基戊酸）、2，2-偶氮雙（2-羥基曱基丙腈）、2，2、偶氮雙〔2-(2 -咪11 坐琳2 -基）丙烧〕等。作為有機過氧化物，可以例舉笨曱酰過氧化物、過氣化苯甲酸t-丁基酯、過氧化氫異丙笨、過氧二碳酸二異丙基酯、過氧二碳酸二n-丙基酯、過氧二碳酸二（2_乙氧基乙基）酯、過氧新的卡酸卜丁基酯 (t-bUtylperoXyne〇deCanoate)、過氧比巴酸卜丁基酯 (t-butyiperoxypyvaiate)、（3, 5, 5_三甲基環戊酮基） 23 201245389 過氧化物、二丙酰過垃一氧化物以及二乙酰過氧化物等。加蘇耧，—此卞σ物（A)以及（B)的溶液混合，加稀釋溶媒。其後， μ r η〜σ父聯劑（c)以及根據需要的矽烷偶聯劑（D )，充分、a ,^ Q，得到用溶媒稀釋的黏著性組成物 C塗佈溶液）。黏著性組成物稀釋製以例舉己烧、庚炫1己H佈用的稀釋溶劑，可 — 、己烷4的月曰肪族烴，甲苯、二甲苯 #的方香族烴，二氣 70、一氣乙烷等的鹵代烴，甲醇、乙醇、丙醇、丁醇、^甲备Α σ 7键甲氧基2—丙醇等的醇，丙酮、甲基乙基酮、2-戊醇、里盔τ ㈣丁且錢而_、環戊酮等㈣，醋酸乙基醋、醋酸丁基酯等的酷，7 w、基;谷纖劑等的溶纖劑類溶劑等。如此調製的塗佈湓你μ _ Λ 的濃度•黏度，只要為可以塗佈圍即可，沒有特別的限制，根據情況適宜選定即可。黏著性組成物的濃度可以稀釋為U至則量％。並付=塗佈’讀時’稀釋溶劑等的添加不是必要條件，要黏著性組成物发& > * s "、土可能的黏度，稀釋溶劑不添加也、種眾° ’黏著性組成物可以原封不動地用作塗佈〉谷液。述點著性組成物的交聯亡述的黏著劑’是上述黏著性組成物交聯而成的。上種加熱處理，可以兼作黏著 ’可以加熱處理來進行。並且，這性組成物的稀釋溶媒等的揮發幹燥處理。進仃加熱處理的場合，加熱溫度，較佳為至15。，特別是⑺至⑽為更佳。另外，加熱時間為，3〇秒 24 201245389 至3分為較佳，5 0秒至2分為特佳。進一步，加熱處理後，常溫（例如，，50%RH)下設置！至2周左右的熟成期間為特佳。上述的加熱處理（以及熟成），用交聯劑（c)將第2 (甲基）丙烯酸酯聚合物（B)交聯，形成致密三維網狀構造（推測）。並且，其三維網狀構造令有2分子以上的第玉 (甲基）丙烯酸醋聚合體⑴不伴隨直接的化學鍵或伴隨極少的化學鍵進行***而成的，該聚合物（a)被約束，形成擬似的交聯構造（推測）。另外，第i (甲基）丙烯酸醋聚合物⑴為具有減的場合，第！（甲基）丙烯酸酉旨聚二⑴與石夕烷偶聯劑（D)反應，得到的黏著劑的向液晶單元等的玻璃基板的黏著耐久性可以得以提高。以上說明的黏著劑，作為光學部件用為較佳例如，對偏振片和相位差板的黏著，或者偏振片（偏振光薄膜）以及相位差板（相位差薄膜）和玻璃基板的黏著為適宜。上述黏著劑形成的黏著劑層，應力松馳率非常優良，即使被黏著體的尺寸變化為大的場合，其尺寸變化而產生的應力也會被黏著劑層吸收·松驰’所以長期也不會從被黏； =上剥離’同時上述的那樣的光學部件使用時，可以對漏光進行有效的防止。即，本實施形態_著劑，在光學部件上使用B夺’耐漏光性和耐久性都良好。〔黏著片〕如圖1所示的那樣，第向上的順序，由剝離片1 2， 1實施形態的黏著片1A，從下剝離片12剝離面層疊的黏著 25 201245389 劑層著劑層U層疊的基材13來構成β 另外’如圖2所示的那樣，第2實施* 2枚剝離片】2a，12b以及這歧？蘇在v〜、、點著片IB，的黏著劑層Η來構 W離片⑶，12b挾持 ^ U來構成。黏著劑層與2牧的剝離面相接。並且，本片12a，12b 為剝離“古⑴ 本說明書中的所謂剝離片的剝離面，有實施_ 性的面、實施了剝離處理面以及即使沒有貧施剝離處理Y曰县；丨义’又 -疋也員不出剝離性的面中的任一勒著nru還是，㈣劑層】】都是上述的黏者性、、且成物交聯而形成的黏著劑。When Mu's step 1 () is less than the amount, the cross-linking agent (c) is used only for the reaction with the reactive functional group (bl), and an adhesive having excellent stress relaxation rate can be obtained. Further, in the present embodiment, the crosslinking agent (c) may be a crosslinking agent having a relationship with reactivity between the reactive functional group (bl) and the reactive functional group (al). And use it. From the viewpoint of easy control of the three-dimensional network structure formed of the second (meth) acrylate polymer (B), for example, as with the isofluoride-based crosslinking agent, only the i-type crosslinking agent is used. Preferably, further, it is particularly preferred to use only one crosslinking agent 20 201245389 as a compound. Here, the combination of the crosslinking agent (c) and the (meth)acrylic acid vinegar polymer (A) and (B) the reactive functional group-containing monomer is an isocyanate crosslinking agent in the crosslinking agent (C). In the case where the monomer (a) containing the reactive functional group (a) of the polymer (a) is a monomer having a carboxyl group, and the monomer having a hydroxyl group as a reactive functional group (bl) containing the polymer (B) A monomer or an amino group monomer is preferred. On the other hand, when the crosslinking agent (C) is an epoxy crosslinking agent, an aziridine crosslinking agent or a metal chelate crosslinking agent, it is a reactive functional group containing the polymer (A) ( The monomer of the "al) is preferably a monomer having a hydroxyl group, and is preferably a monomer having a reactive functional group as a polymer (β), and a monomer having a carboxyl group is preferred. The flexibility of the bond formed between the crosslinking agent (C) and the polymer (Β), and the stability of the crosslinking reaction, further, from the reactive group of the polymer (Α) and the coupling agent ( D) Carrying out a suitable reaction's view that the cohesive force of the obtained adhesive is improved, and the reactive functional group (al) of the crosslinking agent (the isocyanic acid-based crosslinking agent containing the polymer U) The body is a monomer containing a slow group, and the reactive functional group (bl) monomer containing the polymer (4) is a monomer having a hydroxyl group, and it is particularly preferable not to use a monomer having a reactive functional group (b2). The adhesive composition of the present embodiment preferably further contains a decane coupling agent (D), such as containing the decane coupling agent (D), and the i- (meth)acrylic acid S-based polymer (A). In the case of a carboxyl group, the organic reactive group of the decane coupling agent (d) reacts with the group of the K-methyl propylene polymer (A) 21 201245389, on the other hand, the decane is chopped and smashed. The alkoxymethyl fluorenyl hydrazine of the agent (D) acts on the adherent surface W, a. As a result, for example, the adhesion between the polarizing plate and the liquid-repellent agent which adheres to the liquid glass, etc., and the liquid crystal breakage are more excellent. As such a ceramsite coupling agent (D), it is an organic ruthenium compound having at least one alkoxyalkyl group in the molecule, and the compatibility of the component of the viscous agent is good, and light permeability is, for example, It is suitable for the transparent material. The amount of the agent (8) added is particularly good for the "methyl" (1) mass fraction of 〇.〇1 to .5 mass to 0.3 parts by mass. 1 Main U.Ub as a decane coupling agent (D) And the physical example π m 扪, the body example 'may be exemplified by the polymerization of vinyl-methoxy decane, vinyl triethoxy one / also acryl oxypropyl dimethoxy zexi The unsaturated group contains an epoxy-structured σ substance such as an anthracene compound, a propoxypropyltrimethoxy oxane, a 2-(3,4-epoxycyclohexyl)ethyltrimethoxydecane, or a 3-fluorenyl group. Propyltrimethoxydecane, Ν-(2-aminoethyl)_3_animal Nr9., soil) d-mercaptopropyldimethoxydecane, N-(2-cyanoethyl)_3_amino a fluorenyl hydrazide compound such as propyl T-methyl methoxy decane, 3 _ propyl propyl trimethyl r r 矽矽、, 3 ～ isocyanate propyl ethoxy decane, etc. These can be used alone 'You can also use two or more types together. Classes are described in the adhesive composition. As needed, various additives commonly used in acrylics can be added, such as adhesives. Agent, oxidation: stopper 'UV absorber, light stabilizer, softener, filler, charge inhibitor, refractive index adjuster, etc. 22 201245389 The above adhesive composition, i- (meth) acrylate polymer (A) and 2 (indenyl) acrylate polymerization # (B) can be mixed at the same time, any cross-linking agent (c) can be added, and the desired decane coupling agent (D) ° is preferred. For example, the (meth) acrylate polymers (A) and (B) can be prepared by a usual radical polymerization method. The polymerization of the (meth) propylene I δ θ polymer (A) and (b) can be carried out as needed. It is produced by a solution polymerization method using a polymerization initiator. Examples of the polymerization solvent include ethyl acetate, n-butyl acetate, isobutyl acetate, toluene, acetone, hexane, and methyl ethyl ketone. In addition, as the polymerization initiator, an azo compound or an organic peroxide may be used in combination of two or more kinds. The azo compound may, for example, be 2,2-azobis. Isobutyronitrile, 2,2,-azo double (2-A) Butyronitrile), 1'1-azobis(cyclohexanebonitrile), 2,2,-azobis(2,4-dinonyl nitrile), 2' 2'-azobis (2, 4-dimethyl-4-methoxy nitrile), dimercapto 2,2'-azobis(2-methylpropionic acid), 4,4, azobis(cyanovaleric acid), 2 , 2-azobis(2-hydroxydecylpropionitrile), 2, 2, azobis[2-(2-amidophenan-2-yl)propane], etc. As the organic peroxide, for example曱曱曱过氧化物过氧化物、、、曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱曱Di(2-ethoxyethyl)carbonate, peroxydibutylphosphonate (t-bUtylperoXyne〇deCanoate), t-butyiperoxypyvaiate, (3, 5, 5_3) Methylcyclopentanone) 23 201245389 Peroxide, dipropionyl peroxide, and diacetyl peroxide. Add sulphate, the solution of 卞σ (A) and (B) is mixed, and the solvent is diluted. Thereafter, μ r η 〜 σ parent compound (c) and, if necessary, a decane coupling agent (D), sufficient, a, ^ Q, to obtain an adhesive composition C coating solution diluted with a solvent). The adhesive composition is diluted to exemplify a dilute solvent for the calcined and hexahydrate 1H cloth, and the alicyclic aliphatic hydrocarbon of hexane 4, the aromatic hydrocarbon of toluene and xylene #, the second gas 70 Halogenated hydrocarbons such as mono-ethane, methanol, ethanol, propanol, butanol, acetonitrile, σ 7 bond methoxy 2-propanol, etc., acetone, methyl ethyl ketone, 2-pentanol , Helmets τ (4) Ding and money and _, cyclopentanone and other (four), ethyl acetate, butyl acetate and other cool, 7 w, base; cellulite and other cellosolve solvents. The concentration and viscosity of the coating 如此 μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ The concentration of the adhesive composition can be diluted from U to the amount %. And paying = coating 'when reading' dilution solvent is not necessary, it is necessary to adhere the composition of the hair &> * s ", the possible viscosity of the soil, the dilution solvent is not added, the species ° 'adhesive The composition can be used as a coating>column solution as it is. The cross-linking of the sexual composition is described as an adhesive of the above-mentioned adhesive composition. The above heat treatment can be carried out as a heat treatment. Further, the diluted solvent of the composition is evaporated and dried. In the case of heat treatment, the heating temperature is preferably 15 . Especially (7) to (10) are better. In addition, the heating time is 3 sec. 24 201245389 to 3 is better, and 50 to 2 is particularly good. Further, after the heat treatment, set at normal temperature (for example, 50% RH)! It is especially good during the ripening period of about 2 weeks. In the above heat treatment (and aging), the second (meth) acrylate polymer (B) is crosslinked by a crosslinking agent (c) to form a dense three-dimensional network structure (presumed). Further, the three-dimensional network structure is such that two or more molecules of the jade (meth)acrylic acid vinegar polymer (1) are not inserted with direct chemical bonds or with few chemical bonds, and the polymer (a) is restrained to form. Quasi-like cross-linking structure (presumed). In addition, the i-th (meth)acrylic acid vinegar polymer (1) has a reduced occasion, the first! The (meth)acrylic acid hydrazone (2) is reacted with the ceramide coupling agent (D), and the adhesion durability of the obtained adhesive to a glass substrate such as a liquid crystal unit can be improved. The adhesive described above is preferably used as an optical member, for example, for adhesion of a polarizing plate and a retardation film, or adhesion of a polarizing plate (polarizing film) and a retardation film (phase difference film) to a glass substrate. The adhesive layer formed of the above-mentioned adhesive has a very excellent stress relaxation rate, and even if the size of the adhesive body is changed to be large, the stress generated by the dimensional change is absorbed and relaxed by the adhesive layer. Light leakage can be effectively prevented when it is used as the above-mentioned optical component. In other words, in the present embodiment, the use of B in the optical component is excellent in light leakage resistance and durability. [Adhesive sheet] As shown in Fig. 1, in the order of the first direction, the adhesive sheet 1A of the peeling sheet 1 2, 1 is adhered to the peeling surface of the lower peeling sheet 12, and the adhesive layer is laminated. The base material 13 constitutes β. In addition, as shown in Fig. 2, the second embodiment * 2 peeling sheets 2a, 12b and the difference? Su is in the v~, and the IB layer is attached to the adhesive layer to form a spacer (3), and 12b is held by ^U. The adhesive layer is in contact with the peeling surface of the 2 animal husbandry. Further, the sheets 12a and 12b are peeled off from the "offering surface of the so-called peeling sheet in the present specification, and the surface of the peeling sheet is subjected to a peeling treatment surface, and even if there is no peeling treatment, Y曰县; - The 疋疋不任一任一剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离剥离

:著劑層1〗厚度，根據黏著片iAM 適宜決定，诵受盔；^ 通爷為5至i〇〇A m，較佳為ίη 圍，例如，光學部件，特別至6_的範用的場合，10至5()㈣疋作為偏振片用的黏著劑層使 “ 50"m’特別是㈠至·m為較佳。基材片你基材13 ’沒有特别的限制，通常的作為黏著片的 mu之物都可以使用。例如，需要的光學部件之外， =造絲、丙稀酸、聚醋等的纖維的纺織布或者無纺布；金屬Γ .破璃紙，、含浸紙、塗佈紙等的紙類；铭、銅等的 -审t ’***曰發泡體、聚乙歸發泡體等的發泡體；聚對苯耸曰、聚對笨二甲酸丁二醇酯以及聚萘酸乙醇 =的Μ薄膜；三乙酰纖維素等的纖維素薄膜；聚氨醋 ::聚乙烯溥膜；聚丙烯薄瞑；聚氣代乙烯薄膜；聚氤化偏乙稀薄腹.平7 # 八私，醇薄膜；乙稀醋酸乙稀基醋共聚二物薄膜；聚笨乙稀薄膜；聚碳酸醋薄膜；丙糊脂薄、χ水片烯類树脂薄膜;環烯烴樹脂薄膜等的塑料薄膜； 26 201245389 這些的2種以上的層疊體等。塑料薄膜一軸壓延或者二軸壓延之物都可以使用。作為光學部件，可以例舉偏振片（偏振光薄膜）、偏光子、相位差板（相位差薄膜）、視角補償薄膜、亮度提河4膜、對比性提高薄膜、液晶聚合物薄膜等。其中偏振片（偏振光薄膜），易於收縮，尺寸變化大，從耐漏光性的觀點，作為本實施形態的黏著劑（上述黏著劑層11)的使用對象是適宜的。基材13的厚度，根據其種類也不同，例如光學部件的場合中，通常10//111至500//m，較佳為5〇vm至3〇〇ym。作為剝離片12，12a，12b，可以例舉聚乙烯薄膜、聚丙烯薄膜、聚丁烯薄膜、聚丁二烯薄膜、聚曱基戊烯薄膜' 聚氯代乙烯薄膜、氣代乙烯共聚合物薄膜、聚對苯二甲酸乙二醇酯薄膜、聚萘酸乙醇酯薄膜、聚對苯二甲酸丁二醇酯薄膜、聚氨酯薄膜、乙烯醋酸乙烯基酯薄膜、離子鍵聚合物樹脂薄膜、乙烯.（甲基）丙烯酸共聚合物薄膜、乙烯·（甲基）丙烯酸酯共聚合物薄膜、聚笨乙烯薄膜、聚碳酸酯薄膜、聚酰亞胺薄膜、氟樹脂薄膜等。另外，這些的交聯薄膜也可以使用。進一步，這些的疊層薄膜也可。上述剝離片的剝離面（特別黏著劑層u和接的面）中，實施剝離處理為較佳。剝離處理中使用的剝離劑，可以例舉醇酸類、矽氧烷類、氟樹脂類、不飽和聚酯類、聚烯烴類、蠟類的剝離劑。剝離片⑴心⑽的厚度沒有特別的限制，通常 27 201245389 為2 0至1 5 0 μ m左右。上述黏著片1A的製洪曰 a — 疋在剝離片12剝離面上，進行含有上述黏著性組成物上進 ^ ^ _ 展（塗佈溶液）的塗佈，進灯加熱處理形成黏著劑層進、士麻品甘4 1後’其黏著劑層11上基材13 被層疊。其後，設置熟成: The thickness of the coating layer 1 is determined according to the adhesive sheet iAM, and the helmet is 5; i 通A m, preferably ίη, for example, optical components, especially for the 6_ In this case, 10 to 5 () (4) 疋 as the adhesive layer for the polarizing plate, it is preferable that "50" and "m" are particularly (i) to m. The substrate sheet of your substrate 13' is not particularly limited, and is usually used as an adhesive. Any of the pieces of mu can be used. For example, in addition to the required optical components, woven or non-woven fabric of fibers such as silk, acrylic, polyester, etc.; metal enamel; glass paper, impregnated paper Papers coated with paper, etc.; foams of Ming, Tong, etc. - trial t 'Xiaoxi 曰 foam, poly propylene foam, etc.; poly-p-phenylene, poly-p-dicarboxylic acid Alcohol ester and polyheptanoic acid ethanol = ruthenium film; cellulose film such as triacetyl cellulose; polyurethane: polyethylene ruthenium film; polypropylene thin ruthenium; polyglycol vinyl film; polythene oxide .Ping 7 #八私, alcohol film; ethylene vinyl acetate vinegar copolymer film; polystyrene film; polycarbonate film; propyl bromide thin, hydrazine Resin film; plastic film such as a cycloolefin resin film; 26 201245389 Two or more types of laminates, etc. The plastic film may be used for one-axis rolling or biaxial rolling. As the optical member, a polarizing plate (polarized light) may be exemplified. Film), polarizer, phase difference plate (phase difference film), viewing angle compensation film, brightness tihe 4 film, contrast improving film, liquid crystal polymer film, etc. Among them, polarizing plate (polarized film), easy to shrink, size change It is preferable to use the adhesive (the above-mentioned adhesive layer 11) of the present embodiment 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, usually 10//111 to 500//m, preferably 5 〇 vm to 3 〇〇 ym. As the release sheets 12, 12a, 12b, a polyethylene film, a polypropylene film, a polybutene film, a polybutylene may be exemplified. Alkene film, polydecyl pentene film 'polyvinyl chloride film, gas ethylene copolymer film, polyethylene terephthalate film, polyethylene naphthalate film, polybutylene terephthalate Alcohol ester film, polyurethane film, ethylene vinyl acetate film, ionomer resin film, ethylene. (meth)acrylic copolymer film, ethylene · (meth) acrylate copolymer film, polystyrene film A polycarbonate film, a polyimide film, a fluororesin film, etc. These crosslinked films may be used. Further, these laminated films may be used. The release surface of the release sheet (particularly an adhesive layer u) In the surface to be bonded, it is preferred to carry out the release treatment. The release agent used in the release treatment may, for example, be an alkyd, a siloxane, a fluororesin, an unsaturated polyester, a polyolefin or a wax. The release agent. The thickness of the core (10) of the release sheet (1) is not particularly limited, and is usually about 20 to 150 μm from 27 201245389. The flooding a of the adhesive sheet 1A is applied to the peeling surface of the peeling sheet 12, and the coating containing the adhesive composition is applied to the coating (coating solution), and heat is applied to form an adhesive layer. After the stalking of the stalks, the substrate 13 on the adhesive layer 11 is laminated. Thereafter, set the ripening

月間為車乂佳。並且，加埶處理及熟成的條件，如上述。刀.、、、蜒埋UIt is good for the car during the month. Further, the conditions of the twisting treatment and the ripening are as described above. Knife, ,, 蜒 buried U

另外，上述黏著片1B ^ 19h^ . 1纪，疋將—個剝離片12a(或者12b)的剝離面上，進人 ^ 3有上述黏著性組成物的塗佈洛液進仃塗佈，進行加赦走 …理形成黏著劑層11後，在黏著劑層11的另—面，將剝片12b (或者12a)的剝離面重合0 上述塗佈溶液的塗佈的力ό 4 邯的方法，可以例舉輥塗佈法、刮塗佈法、輕塗佈法、到刀塗佈法、加壓塗佈法、凹版塗怖法：4。在此’例如’由液晶單元和偏振片構成的液晶表示裝二製造，作為黏著片1Α的基材13使用偏振片，該黏著片1 Α的剝離片1 9，喈山出的黏著劑層11與液晶單元貼合即〇另外’例如’液晶單元和偏振片之間配置相位差板的液日日表示裝置的劁拌，你 1 作為—例，首先，黏著片1B的一面 :4 12“或者12b)剝離’黏著片1B露出的黏著劑才位差板貼合。接著，將作為基材13使用偏振片 ’占者片1A的剝離片12剝離’黏著片心露出的黏著劑上述相位差板貼合。進一步，從上述點著片Μ的 28 201245389 = 上將另一面的剝離片m(或者12a)剥離，黏者片1B露出的黏著劑層u和液晶單元貼合。 a俱•上的黏者片1A ’ 1B ’黏著劑層11的應力松馳率非列如使用於偏振片的黏著的場合，由於偏振片的變形而產生的應力被點著劑層u吸收.松馳，由此，優，的耐漏光性以及高的耐久性可以得以發揮（推測）。、以上說明的實施形態，是為了本發明的易於理解而記载的’對本發明沒有限定。所以，上述實施形態公開的各素屬於本發明的技術的範圍的所有的設計變更以及同物都含在其中。 J如黏著片1A的剝離片12可以省，並且黏著片1 b 中的剝離片12a，12b的任一方也可以省略。【實例】以下’用貫例等對本發明進行進一步具體地說明，本發明的範圍並不受這些實例等的限定。〔實例1〕 1 ·聚合物（A )的調製向具有授拌機、溫度計、還流冷卻器、滴下裝置以及氮導入管的反應容器中，加入丙烯酸η-丁基酯97.〇質量份、丙烯酸3. 0質量份、醋酸乙基酯200質量份以及2， 2’ 一偶氮雙異丁腈〇. 〇8質量份，上述反應容器内的空氣用氮氣置換。在這種氮氛圍氣下中邊進行攪拌’邊將反應溶液升溫為6 〇，16小時反應後，冷卻至室溫。在此，將得 29 201245389 到的溶液的一部分用下述的方法進行GPC測定，重量平均分子量150萬的聚合物（A )的生成得以確認。 2.聚合物（B)的調製向具有攪拌機、溫度計、還流冷卻器、滴下裝置以及氮導入管的反應容器中，加入丙烯酸n_丁基酯85〇質量份、丙烯酸2-羥基乙基酯15.0質量份、醋酸乙基酯2〇〇質量份、2, 2’-偶氮雙異丁腈0.16質量份以及2_巯基乙醇0.3質量份，上述反應容器内的空氣用氮氣置換。在這種氮氛圍氣下中邊攪拌，邊將反應溶液升溫到7〇。〇，6小時反應後，冷卻至室i。在Λ，將得到的溶液的一部分用下述的方法進行GPC载，重量平均分子量6萬的聚合物 (Β )的生成得以域認。 3·黏著性組成物的調製將上述工序（1)中得到的聚合物（Α)⑽質量份（固體成分換算值）和上述工序（2)中得到的聚合物⑴15 質量份（固體成分換算值）混合後，作為交聯劑（c)，使用相當於聚合物⑴的經基〇.6 f量的的三經甲基丙炫的亞节基二異氰酸醋（TDI類）加成物（日本聚氣醋公司製，商品名：C_NATE-L)2.21 f量份添力p最後，作為石夕院偶聯劑（D)，添加3_環氧丙氧基㈣三甲氧基石夕炫（信越化學工業公司製，商品名:議4。3)。.2質量份，充分攪拌，得到黏著性組成物的稀釋溶液。在此，該黏著性組成物的配比如表…示。並且，表 1 §己载的略號等的詳細如以下。 30 201245389 [聚合物（A )以及（B )] BA :丙烯酸η-丁基酯 Μ :丙烯酸 ΗΕΑ :丙烯酸2-羥基乙基酯 4ΗΒΑ :丙烯酸羥基丁基酯 [可塑劑] • ADEKASIZER-C-8 :偏笨三酸酯類可塑劑（偏苯三酸三（2乙基己基）酯）（旭電化工業公司製，商品名：ADEKASIZER-C-8) [交聯劑（C )] •異氰酸酯類交聯劑 C0R0NATE-L :三經甲基丙烧的亞节基二異氰酸酯加成物（日本聚氨酯公司製，商品名：C0R0NATE-L ) TAKENATE-D-110N :三羥曱基丙烷的二曱苯二異氰酸酯加成物（三井化學聚氨酯公司製，商品名：TAKENATE-D-110N) •環氧類交聯劑 -四縮水甘油基m一對二甲苯，商品名：TETRAD-X)In addition, the above-mentioned adhesive sheet 1B ^ 19h ^ 1 , the peeling surface of the peeling sheet 12a (or 12b), the coating layer of the above-mentioned adhesive composition is applied to the adhesive sheet. After the adhesive layer 11 is formed, the peeling surface of the peeling sheet 12b (or 12a) is superposed on the other side of the adhesive layer 11, and the coating force of the coating solution is 04 ,, A roll coating method, a knife coating method, a light coating method, a knife coating method, a pressure coating method, and a gravure coating method can be exemplified: 4. Here, for example, a liquid crystal display comprising a liquid crystal cell and a polarizing plate is used for the production of a liquid crystal, and a polarizing plate is used as the substrate 13 of the adhesive sheet 1 . The adhesive sheet 1 of the adhesive sheet 1 is an adhesive layer 11 of the mountain. The liquid crystal unit is bonded to the liquid crystal cell, that is, the liquid phase day and the day device of the phase difference plate are disposed between the liquid crystal cell and the polarizing plate, for example, first, for example, one side of the adhesive sheet 1B: 4 12" or 12b) peeling off the adhesive which is exposed by the adhesive sheet 1B to be adhered to the difference plate. Next, the peeling sheet 12 which is used as the substrate 13 using the polarizing plate 'occupant sheet 1A' is peeled off from the adhesive sheet exposed by the adhesive sheet. Further, from the above-mentioned point of the sheet 28 201245389 = peeling off the peeling sheet m (or 12a) on the other side, the adhesive layer u exposed by the stick sheet 1B and the liquid crystal cell are bonded together. The stress relaxation rate of the adhesive sheet 1A ' 1B 'adhesive layer 11 is not listed as the adhesion of the polarizing plate, and the stress generated by the deformation of the polarizing plate is absorbed by the dot layer u. Excellent, light leakage resistance and high durability The embodiment described above is described in order to facilitate understanding of the present invention. The present invention is not limited to the present invention. Therefore, all the design changes disclosed in the above embodiments belong to the scope of the technology of the present invention. And the same material is contained therein. J. The release sheet 12 of the adhesive sheet 1A can be omitted, and either one of the release sheets 12a, 12b in the adhesive sheet 1b can be omitted. [Examples] The following is a description of the present invention. Further, the scope of the present invention is not limited by these examples and the like. [Example 1] 1 · Modulation of polymer (A) to a mixer, a thermometer, a reflow cooler, a dropping device, and a nitrogen introduction tube To the reaction vessel, 97 parts by mass of η-butyl acrylate, 3.0 parts by mass of acrylic acid, 200 parts by mass of ethyl acetate, and 2,2'-azobisisobutyronitrile. 8 parts by mass. The air in the reaction vessel was replaced with nitrogen. The reaction solution was heated to 6 Torr while stirring under such a nitrogen atmosphere, and after 16 hours of reaction, it was cooled to room temperature. 29 201245389 A part of the solution obtained was subjected to GPC measurement by the following method, and the formation of the polymer (A) having a weight average molecular weight of 1.5 million was confirmed. 2. The preparation of the polymer (B) was carried out with a stirrer, a thermometer, and a reflow cooler. In the reaction vessel of the dropping device and the nitrogen introduction tube, 85 parts by mass of n-butyl acrylate, 15.0 parts by mass of 2-hydroxyethyl acrylate, 2 parts by mass of ethyl acetate, 2, 2'- 0.16 parts by mass of azobisisobutyronitrile and 0.3 parts by mass of 2-mercaptoethanol were used, and the air in the reaction vessel was replaced with nitrogen gas. The reaction solution was heated to 7 Torr while stirring under such a nitrogen atmosphere. 〇, after 6 hours of reaction, cool to chamber i. In the crucible, a part of the obtained solution was subjected to GPC loading by the following method, and the formation of a polymer (Β) having a weight average molecular weight of 60,000 was recognized. 3. Preparation of Adhesive Composition The polymer (Α) obtained in the above step (1) (10 parts by mass (solid content converted value) and the polymer (1) obtained in the above step (2) 15 parts by mass (solid content converted value) After mixing, as the crosslinking agent (c), a trimethyl methacrylate-based sub-densyl diisocyanate (TDI-based) adduct corresponding to the amount of the polymer (1) is used. (made by Japan Polyurethane Co., Ltd., trade name: C_NATE-L) 2.21 f, the amount of added force p Finally, as the Shi Xiyuan coupling agent (D), add 3_glycidoxy (tetra) trimethoxy Shi Xi Xuan ( Shin-Etsu Chemical Co., Ltd., trade name: Negotiation 4. 3). .2 parts by mass, stirred well to obtain a diluted solution of the adhesive composition. Here, the composition of the adhesive composition is shown in the table. In addition, the details of the number such as the ones listed in Table 1 are as follows. 30 201245389 [Polymer (A) and (B)] BA: η-butyl acrylate Μ : ΗΕΑ ΗΕΑ : 2-hydroxyethyl acrylate 4 ΗΒΑ : hydroxybutyl acrylate [plasticizer] • ADEKASIZER-C-8 : Partial triglyceride plasticizer (tris(2-ethylhexyl) trimellitate) (manufactured by Asahi Kasei Kogyo Co., Ltd., trade name: ADEKASIZER-C-8) [crosslinking agent (C)] • Isocyanate Crosslinking agent C0R0NATE-L: a tridecyl diisocyanate adduct of trimethyl propyl hydride (manufactured by Nippon Polyurethane Co., Ltd., trade name: C0R0NATE-L) TAKENATE-D-110N: diterpene benzene of trishydroxypropyl propane Diisocyanate adduct (manufactured by Mitsui Chemicals, Inc., trade name: TAKENATE-D-110N) • Epoxy crosslinker-tetraglycidyl m-p-xylene, trade name: TETRAD-X)

TETRAD-X : N ， N ， N，， N 基二胺（三菱瓦斯化學公司製 [矽烷偶聯劑（D )] KBM403: 3-環氧丙氧基丙基三甲氧基# 工業公司製’商品名「KBM4〇3」）疋έ越化學 ΚΒΕ9007 : 3-異氰酸酯丙基三乙氧基矽 ‘ 工業公司製’商品名「ΚΒΕ9〇〇7」） 4越化學 31 现245389 聚對笨二甲酸乙二醇酯劑進行了剝離處理的剝 / 、4面用石夕氧烧類剝離厚产.’ （琳得科公司製，SP-PET3811，厚度.38“）的剝離處理面〜的稀釋溶液的塗佈，使”到的黏著性組成物TETRAD-X : N , N , N, , N - based diamine (Mitsubishi Gas Chemical Co., Ltd. [decane coupling agent (D )] KBM403: 3-glycidoxypropyltrimethoxy #" "KBM4〇3") 疋έ越化学ΚΒΕ9007 : 3-isocyanate propyl triethoxy 矽 'Industrial company's product name 'ΚΒΕ9〇〇7》) 4 Yue Chemical 31 now 245389 Poly pair of bismuth dicarboxylate The stripping treatment of the alcohol ester agent was carried out, and the stripping treatment surface of the peeling treatment surface of the four sides was used for the stripping treatment of the stone-like oxygen-burning type. (made by Linde Co., Ltd., SP-PET3811, thickness: 38") Cloth, making "adhesive composition"

Xj ^ ^ ' ，旱度為2 5 y m。塗佈用刮刀塗佈機進行，此後在劑層。订1分鐘加熱處理，形成著接者’將帶有圓盤液晶岸的 ... 、日日層的偏振光薄膜形成的，偏4 光溥膜和視角擴大薄臈為一姐•的偏振片，黏著劑層和u 盤液晶層進行貼和，佬直相便/、相接，23 C，50%RH下7天熟成得到帶黏著劑層的偏振片。〔貫例2至13 ’比較例1至5〕將構成黏著性組成物的各單體的種類以及比率，可塑劑，交聯劑以及⑪炫偶聯劑的種類以及添加量，以及聚合物（A)以及聚合物（B)的組成比如表丨所示的那樣變更以外，與實例1同樣製作帶黏著劑層的偏振片。在此’上述的重量平均分子量（Mw)，用凝膠滲透色譜（GPC)按以下的條件測定（GPC測定）的聚苯乙烯換算的重量平均分子量》 <測定條件> • GPC測定裝置：Tosoh公司製，HLC-8020Xj ^ ^ ', the drought is 2 5 y m. The coating was carried out with a knife coater and thereafter at the agent layer. Set a heat treatment for 1 minute to form a polarizer that is formed by a polarizing film of a day-to-day layer with a disk liquid crystal bank, a 4-way film and a viewing angle. The adhesive layer and the u-disk liquid crystal layer are attached, and the bismuth phase is directly/closed, and 23 C, 50% RH is cooked for 7 days to obtain a polarizing plate with an adhesive layer. [Examples 2 to 13 'Comparative Examples 1 to 5> The types and ratios of the respective monomers constituting the adhesive composition, the types and addition amounts of the plasticizer, the crosslinking agent, and the 11 coupling coupling agent, and the polymer ( A) A polarizing plate with an adhesive layer was produced in the same manner as in Example 1 except that the composition of the polymer (B) was changed as shown in Table 丨. Here, the weight average molecular weight (Mw) described above 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: Tosoh company, HLC-8020

• GPC柱（以下的順序通過）：Tosoh公司製 TSK guard column HXL-H TSK gel GMHXL ( x2)• GPC column (the following sequence is passed): Tosoh company TSK guard column HXL-H TSK gel GMHXL ( x2)

TSK gel G2000HXL 32 201245389TSK gel G2000HXL 32 201245389

•測定溶媒：四氫呋喃 •測定溫度：4(TC 〔實驗例1〕（凝膠比率的測定）實例或者比較例的_著㈣偏偏振片替換，使用聚對苯二甲酸乙二㈣中使用的了用石夕氧燒類剝離劑的剥離處理剝曰琳：的單面進行 SP-PET3801，厚产.琳侍科公司製，丄厚度.38/zm)，進行黏著片從實例或者比較例的製造過程得到的剝二體地說’ 度：…》0構成的構成體上的露出的黏著心劑層（厚叠’使上述剝離片與剝離處理面側相接。由：進行層黏著劑層/剝離片的構成的點著片得以製作。’呈剝離片/ 將得到的黏著片，在23t，5_的條熟成。其後，哕勡姑制下進仃7天該黏者片被製成80mmx80mm的尺其黏著劑層用聚酯製網（網尺寸2〇〇 )包上，：二式樣劑的質量進行精密天平秤量。這時的質量作為^行對點著接著’將用上述聚酯製網保住的黏著劑，a π 〇Γ、田 sat 至溫下（23 J用醋酸乙基酷進行24小時浸潰。其後取出點著劑，在溫度23t，相對濕度5則環境下’進行24小時風幹，進 :步在8(TC的烘箱中進行12小時幹燥。僅對幹燥後的黏者劑的質量進行精密天平秤量。這時的質量作為Μ。凝膠比率（％)，用（M2/M1 ) xlOO表示。結果如矣9⑯" 仏6所不。〔實驗例2〕（光學性能的測定）作為測定試樣，使用與在凝膠比率的測 ^ τ使用的黏考片同樣的黏著片（7天熟完了）。該黏著片的黏著劑層， 33 201245389 用海斯（Haze)儀（日本電色工業公电巴杲A刁製，NDH2000 ),按j ISK7105基準進行海斯（jjaze)值（％丨 /阻(有時也略Hz ( %): 測定。結果如表2所示。並且，較佳沲 " 孜佳海斯（Haze)值的範圍為，0至5%。〔實驗例3〕（耐久性評價）將實例或者比較例得到的帶黏著劑層的偏振片斷裝置（荻野製作所公司製超級刀，PNl—6〇〇)調整成 X309腳尺寸。將剝離片剝離，基於露出的黏著劑層用裁 233mm 貼附於無域玻璃（康寧公司製，膺；《； . Λ I馮扎）後，在栗原製作所製高壓蚤中0. 5MPa ’ 5(rc下，進行20分加壓。其後’在80°C幹燥的4久條件的環境下投入，㈣小時後用10倍放大鏡進行觀察。外觀變化用以下基準觀察結果如表2 ^ ' ◎ : 4邊中，無問題〇：4邊中，從外周端部〇 6mm以上的部位無問題 X : 4邊的至少1邊中’從外周端部到〇· 6mm以上的部位，有浮起，剝離，發泡，條紋等的〇 lmm以上劑的外觀異常〔實驗例4〕（耐漏光性實驗）將實例或者比較例中得到的帶有黏著劑層偏振片，用裁斷裝置（I火野製作所公司製超級刀，ΡΝ1_δ〇〇)調整為 233mmx309mm尺寸。剝離片薄到，介於露出的黏著劑層貼附於無滅玻璃（康寧公司製，魔XG)之後，栗原製作=製高壓釜中，在0.5MPa，5(rc下，進行2〇分加壓。並且， 34 201245389 2 ’在無域玻璃的表襄，㈣著劑層的偏振片偏光軸調整為尼科爾十字狀態（偏光軸：Z45。，zl35。）。在這種^儀幹燥環境下進行聊小時放置後在咖，境下切2小時放置，將此作為試樣，用以下所不方法進行漏光性。結果如表2所示。〈漏光性評價：△ L*> 用大冢電子公司製的M⑽_2_，對上述試樣中的圖3 所不各領域的明度L*進行測定，明度差△“，用式 △ L*=〔（ b+ c+ d+ e) /4〕_a (但是，a’b’c’d以及e’它們A領域，b領域，c領域，領域以及E領域的㈣規定的測定點（各領域的中央處的:處）中的明度。）來求，作為漏光性。△㈣值越小属光越v並且，L*ma χ，表示上述全部領域中的最大明度。 <漏光性評價：目視> 將上述試樣設置於平板照明燈（電通產業公司製， hf-SL-A312lc，照度：26,〇〇〇Lux，亮度：ι〇，_⑷的 t ’用二維色彩亮度計（可尼卡美能達公司製，CA-2_) 1 ’用解析軟件（可尼卡美能達公司製，a —s2Qw)變換為冗度/刀布圖像。得到的試樣的亮度分布圖像，用圖“斤示評價基準進行評價。〔實驗例5〕（溶膠部分的分子量測定）將實驗例1凝膠比率的測定中使用的醋酸乙基醋用蒸發Is濃»得到滚欣立β八 ++ j合膠邰刀。接者，溶膠部分用四氫呋喃稀 35 201245389 釋為0. 1質量％溶液後，GPC測定造成的重量平均分子量 (Mw)以及分子量分布（Mw/Mn)測定。並且，GPC測定的測定條件如上述。 36 201245389 配比 HEA/AA (mol) ΙΩ d 00 d oo d 00 d 00 o CO ό CO d q in d GO 〇 ό in o o d 5 o ό ο d ο ο 矽烷偶合劑質fi份 0.20 0.20 0.20 0.20 | 0.20 1 | 0.20 1 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 1 '0.20 :0.20 0.20 1 KBM403 KBE 9007 KBM403 KBE 9007 KBM403 ΚΒΜ403 厳聯劑質量份 1 1 • t 1 1 1 < 1 • 1 < 1 1 0.02 i • 1 * 品名 1 1 1 • 1 1 1 ( 1 1 1 1 1 1 TETRA D-X I_ 1 1 1 異氛酸酯類交聯劑質量份 2.21 | 1.13 2.26 3.39 4.52 4.40 3.39 3.39 4.52 2.26 3.39 3.39 3.39 0.30 0.25 0.20 0.40 1 0.60 1 (B>成分OH當fi (Ο d d o (O o 00 d (D 〇 (O d (D d CO d (O d (D 〇 CD ό (D d - 1 1 (D d CD d 1 可勒耐的 L 他凱納它 D-110N 可勒耐的 L i他凱納它 ! D-110N 1可勒耐的 L 可勒耐的 L 可塑劑質量份 1 • 1 1 1 1 1 1 1 1 1 > 1 1 • t 1 1 1 * 1 1 1 1 1 1 1 阿的卡塞大C-8 1 1 1 • 聚合物(B) 質fl份 m τ— m CNJ in <N If) CN io CN4 to CM IO CN in CM m CM m CN ir> CSJ in CN 1 1 1 1 1 Mw 颳 CD 濉 CO 12萬 K (0 m (O « (D « (O m (D 1 1 1 1 1 組成 BA/HEA=85/15 BA/HEA=85/15 BA/HEA=85/15 BA/HEA=80/20 BA/HEA=90/10 BA/HEA=85/15 BA/HEA=85/15 BA/HEA=85/15 * 1 1 1 1 聚合物(A): 100質量份 I 150萬 200萬 150萬 200萬 150萬 165萬 150萬 i 150 萬組成 BA/AA=97/3 BA/AA=97/3 BA/AA=95/5 BA/AA=95/5 BA/HEA=99/1 BA/AA/HEA=95.5/4/0.5 BA/4HBA=99/1 BA/AA=97/3 BA/AA=97/3 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 實施例9 實施例10 實施例11 實施例12 實施例13 比較例1 比較例2 比較例3 比較例4 比較例5 201245389 CNI< 溶膠部分的分子量測定分子量分布(Mw/Mn) ο CO CO CO CN CO CO T™ CO σ> rsi o CO CO r— CO 00 cvi 〇 CO τ— CO o CNJ c\i o c\i in l〇 CNJ 重均分子量(Mw)(萬） 132 139 133 128 128 129 126 CN CO 130 129 142 CO 144 CD τ*· 00 130 s 耐久性 80°C乾燥 ◎ 〇 ◎ ◎ ◎ ◎ 〇〇〇 ◎ ◎ ◎ ◎ 0 〇〇偏光板脫落未評價漏光實驗目視 ◎ ◎ ◎ ◎ ◎ 〇 ◎ 〇〇〇〇 < <] X X z)L* CO d CO d CM d Csl d CO d CO d d CO d d 勺· d 寸 d CO d CO d σ> c\i m CO in L* max CM V- CO T~ CNJ T— 卜 CM 寸 τ— σ> CO in O) CD 七 12.1 11.2 Hz(%) 卜 d CD d 卜 d 卜 d 00 d 00 d O) d 00 d CD d 00 d 00 d σ> d 00 d 00 d CO d in d in d 凝膠比率 (%) in in s CD 00 CD 00 CO CNJ CD CNJ CD CN CD o 卜 m in 00 CO 00 oo r— o 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 實施例9 實施例10 實施例11 實施例12 實施例13 比較例1 比較例2 比較例3 比較例4 比較例5 201245389 表2所表不的那樣，實例的得到的帶有黏著劑層的偏振片巾漆占著劑的凝膠比率為45至90%的範圍，溶膠部刀的重#平均分子量為6{)萬至⑽萬的範圍，耐久性以及财漏光性的都優良。另一方面，比較例得到的帶黏著劑層的偏振片+ ’凝膠比率以及溶膠部分的重量平均分子量的至少-方如不滿上述範圍，对久性以及财漏光性的兩方或者任一方面會變差。本發明的黏著劑，適宜於光學部件，例如偏振片以及相位差板的黏著，另外，本發明的黏著片，作為偏振片以及相位差板等的光學部件用的黏著片適宜。【圖式簡單說明】圖1本發明的第1實施形態的黏著片的剖面圖。圖2本發明的第2實施形態的黏著片的剖面圖。圖3表示具有黏著劑層附的偏振片中的耐漏光性實驗的測定領域的圖。圖4附有黏著劑層的偏振片中的耐漏光性實驗（目視、的評價基準的表示圖。 > 【主要元件符號說明】 U，1Β: 黏著片 11:黏著劑層 12 ’ 12a ’ 12b:剝離片 13: 基材 39• Measurement solvent: tetrahydrofuran • Measurement temperature: 4 (TC [Experimental Example 1] (measurement of gel ratio) Example or comparative example of _ (4) polarizing plate replacement, used in polyethylene terephthalate (IV) The peeling treatment of the Shiki Oxygen-based stripping agent is carried out on a single side, SP-PET3801, thick production, manufactured by Linkeke Co., Ltd., thickness ..38/zm), and the adhesive sheet is manufactured from an example or a comparative example. The exposed adhesive layer (thick stack) on the constituent body formed by the process of "degree: ..." 0 obtained by the process is such that the peeling sheet is in contact with the peeling-treated surface side. A sheet of the composition of the release sheet was produced. 'The release sheet / the obtained adhesive sheet was cooked at 23t, 5_. After that, the sputum was made for 7 days. The adhesive layer of 80mmx80mm is covered with a polyester mesh (net size 2〇〇), and the quality of the two-type sample is weighed by a precision balance. The quality at this time is as follows: then the polyester will be used. The net retaining adhesive, a π 〇Γ, Tian sat to warm (23 J with acetic acid Ethyl cool was subjected to 24 hours of dipping. Thereafter, the point-receiving agent was taken out and air-dried for 24 hours at a temperature of 23 t and a relative humidity of 5, and the step was carried out at 8 (drying in a TC oven for 12 hours. Only for The quality of the sticking agent after drying is weighed by a precision balance. The mass at this time is taken as the Μ. The gel ratio (%) is expressed by (M2/M1) xlOO. The result is as 矣 916 " 仏 6 does not. [Experimental Example 2] (Measurement of optical properties) As the measurement sample, the same adhesive sheet as that used for the measurement of the gel ratio (7 days of completion) was used. The adhesive layer of the adhesive sheet, 33 201245389 by Hayes (Haze) instrument (Nippon Electric Industrial Co., Ltd., NDH2000), according to j ISK7105 benchmark, the value of jjaze (% 丨 / resistance (sometimes also slightly Hz (%): determination. Results such as Table 2 shows that the range of Haze values is preferably from 0 to 5%. [Experimental Example 3] (Evaluation of Durability) Adhesive layer obtained by the example or the comparative example The polarization segment device (Super Knife made by Takino Co., Ltd., PNl-6〇〇) was adjusted to the X309 foot size. 5MPa的 5(rc) rc. 5MPa ' 5(rc) 5 rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc rc Then, pressurization was carried out for 20 minutes. Then, it was put in an environment of four conditions of drying at 80 ° C, and after four hours, it was observed with a magnifying glass of 10 times. The appearance change was observed by the following reference table as shown in Table 2 ^ ' ◎ : 4 In the side, there is no problem. In the four sides, there is no problem from the outer end of the 〇6mm or more. X: At least one of the four sides is 'floating from the outer end to the 6·6mm or more. Abnormal appearance of 〇lmm or the like of foaming, streaking, etc. (Experimental Example 4) (Light leakage resistance test) The polarizing plate with an adhesive layer obtained in the example or the comparative example was used as a cutting device (I Fire Factory Co., Ltd. Knife, ΡΝ1_δ〇〇) is adjusted to 233mm x 309mm size. The peeling sheet is thin, and after the exposed adhesive layer is attached to the non-killing glass (made by Corning Co., Ltd., Magic XG), the Kurihara production = autoclave, at 0.5 MPa, 5 (rc, 2 〇 addition) And, 34 201245389 2 'In the surface of the non-domain glass, (4) the polarization axis of the polarizer of the coating layer is adjusted to the Nicole cross state (polarizing axis: Z45., zl35.). In this dry environment After the hour was placed, it was placed in the coffee and cut for 2 hours, and this was used as a sample, and the light leakage was performed by the following method. The results are shown in Table 2. <Light leakage evaluation: △ L*> M(10)_2_ manufactured by Electronics Co., Ltd., measured the brightness L* of each field in Fig. 3 in the above sample, and the difference in brightness is Δ", using the formula ΔL*=[( b+ c+ d+ e) /4]_a (however, A'b'c'd and e' are the lightness in the A field, the b field, the c field, the field, and the (4) specified measurement points (in the center of each field). The smaller the value of Δ(4) is the lighter v and L*ma χ, which means the maximum brightness in all the above fields. <Light leakage Evaluation: Visual inspection> The above sample was set on a flat panel illumination lamp (hf-SL-A312lc, illuminance: 26, 〇〇〇Lux, brightness: ι〇, _(4) t' with a two-dimensional color luminance meter (manufactured by Konica Minolta Co., Ltd., CA-2_) 1 'Using analysis software (a-s2Qw, manufactured by Konica Minolta Co., Ltd.) to convert to a redundancy/knife image. The brightness distribution image of the obtained sample (Evaluation of the molecular weight of the sol portion) [Experimental Example 5] (Measurement of the molecular weight of the sol portion) The ethyl acetate vinegar used in the measurement of the gel ratio of the experimental example 1 was obtained by evaporating Is rich» ++ j compound boring tool. The sol part is treated with tetrahydrofuran 35 201245389 as 0.1% by mass solution, and the weight average molecular weight (Mw) and molecular weight distribution (Mw/Mn) determined by GPC measurement are determined. The measurement conditions for the GPC measurement are as described above. 36 201245389 Formulation HEA/AA (mol) ΙΩ d 00 d oo d 00 d 00 o CO ό CO dq in d GO 〇ό in ood 5 o ό ο d ο ο 矽偶 coupling agent Fi part 0.20 0.20 0.20 0.20 | 0.20 1 | 0.20 1 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 1 '0.20 :0.20 0.20 1 KBM403 KBE 9007 KBM403 KBE 9007 KBM403 ΚΒΜ403 Mixing agent parts 1 1 • t 1 1 1 < 1 • 1 < 1 1 0.02 i • 1 * Product name 1 1 1 • 1 1 1 ( 1 1 1 1 1 1 TETRA DX I_ 1 1 1 Insoluble ester crosslinker mass part 2.21 | 1.13 2.26 3.39 4.52 4.40 3.39 3.39 4.52 2.26 3.39 3.39 3.39 0.30 0.25 0.20 0.40 1 0.60 1 (B> When fi (Ο ddo (O o 00 d (D 〇 (O d (D d CO d (O d (D 〇CD ό (D d - 1 1 (D d CD d 1 勒勒耐的 L he Kena it D-110N Klein's L i he Kena it! D-110N 1 Keller's L Keller's L plasticizer parts 1 • 1 1 1 1 1 1 1 1 1 > 1 1 • t 1 1 1 * 1 1 1 1 1 1 1 Azerbaijan C-8 1 1 1 • Polymer (B) Mass fl parts m τ — m CNJ in <N If) CN io CN4 to CM IO CN in CM m CM m CN ir> CSJ in CN 1 1 1 1 1 Mw Scratch CD 濉CO 120,000 K (0 m (O « (D « (O m (D 1 1 1 1 1) BA/HEA=85/15 BA /HEA=85/15 BA/HEA=85/15 BA/HEA=80/20 BA/HEA=90/10 BA/HEA=85/15 BA/HEA=85/15 BA/HEA=85/15 * 1 1 1 1 Polymer (A): 100 parts by mass I 1.5 million 2,150,200,200,150,150,165,500,000,000, 1.5 million, BA/AA=97/3 BA/AA=97/3 BA/AA=95/5 BA/AA=95/5 BA/HEA= 99/1 BA/AA/HEA=95.5/4/0.5 BA/4HBA=99/1 BA/AA=97/3 BA/AA=97/3 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Example 12 Example 13 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 201245389 CNI<Measurement of molecular weight of sol moiety Molecular weight distribution ( Mw/Mn) ο CO CO CO CN CO CO TTM CO σ> rsi o CO CO r—CO 00 cvi 〇CO τ—CO o CNJ c\ioc\i in l〇CNJ Weight average molecular weight (Mw) (million) 132 139 133 128 128 129 126 CN CO 130 129 142 CO 144 CD τ*· 00 130 s Durability 80 °C Drying ◎ 〇 ◎ ◎ ◎ ◎ 〇〇〇 ◎ ◎ ◎ ◎ 0 〇〇 Polarizing plate peeling unevaluated light leakage experiment ◎ ◎ ◎ ◎ ◎ 〇 ◎ 〇〇〇〇 << XX z) L * CO d CO d CM d Csl d CO d CO dd CO dd spoon · d inch d CO d CO d σ> c\im CO in L* max CM V- CO T~ CNJ T— Bu CM inch τ — σ> C O in O) CD VII 12.1 11.2 Hz (%) 卜d CD d 卜d b d 00 d 00 d O) d 00 d CD d 00 d 00 d σ> d 00 d 00 d CO d in d in d gel Ratio (%) in in s CD 00 CD 00 CO CNJ CD CNJ CD CN CD o pm in 00 CO 00 oo r - o Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Example 12 Example 13 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 201245389 Table 2 shows the obtained adhesive with an example. The layer has a gel ratio of the polarizing agent to the range of 45 to 90%, and the sol portion has a weight average molecular weight of 6 to 10,000 to 100,000, and is excellent in both durability and light leakage. On the other hand, in the polarizing plate with a pressure-sensitive adhesive layer obtained in the comparative example, the 'gel ratio and at least the weight average molecular weight of the sol portion are as low as the above range, and both the long-term and the light-emitting property are either or both. Will get worse. The adhesive of the present invention is suitable for use in an optical member such as a polarizing plate and a phase difference plate. The adhesive sheet of the present invention is suitable as an adhesive sheet for an optical member such as a polarizing plate or a phase difference plate. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing an adhesive sheet according to a first 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 the field of measurement of the light leakage resistance test in a polarizing plate having an adhesive layer. Fig. 4 shows the light leakage resistance test in the polarizing plate with the adhesive layer (visual view of the evaluation criteria). > [Description of main component symbols] U, 1Β: Adhesive sheet 11: Adhesive layer 12 ' 12a ' 12b : Release Sheet 13: Substrate 39

Claims

201245389 七、申請專利範圍： !.-種黏著劑’其特徵在於··凝膠比率為…⑽，溶勝部分的由凝膠渗透色譜（Gpc)法測定的重量量為60萬至250萬。 η 2. 如申請專利範圍第！項的黏著劑，其中含有重量平均分子量為⑽萬至咖萬的第U甲基）丙稀酸醋聚合物 (A)，以及重量平均分子量為8〇。。至3〇萬的第2(甲基) 丙烯酸酯聚合物（B)進行交聯而得到的成分。 3. 如申請專利範圍第2上述黏著劑，其刀特徵在於：對於第1 (甲基）丙烯酸醋聚合物⑴1〇〇質量份，上述第 2(甲基）丙烯酸醋聚合物⑷的比例為…。質量份。 4. 如申請專利範圍第2項的黏著劑，其中交聯前的上述第、2(甲基）丙稀酸醋聚合物（B)，作為構成成分，含有超過1質量/。’ 5〇質量%未滿的具有反應性官能團的單體。 5. 如申請專利範圍第4項的毒占著劑，其中上述第2(甲基）丙烯酸醋聚合物（B)與具有可與上述反應性官能團反應的的交聯性基團的交聯劑（⑺反應，從而被交聯。 6· -種黏著片’包括;基材以及黏著劑層，其特徵在於：上述黏著劑層，是由申請專利範圍i至5的任一項的黏著劑形成的。 7. 如申請專利範圍帛6的黏著片，其特徵在於：上述基椅為光學部件。 8. —種黏著片，包括2枚的剝離薄片以及被上述薄離片挾持的黏著劑層’由此黏著劑層與上述2枚的剝離薄片 201245389 的剝離面相接，其特徵在於：上述黏著劑層是由申請專利範圍1至5的任一項的黏著劑形成的。 41201245389 VII. Patent application scope: The adhesive agent is characterized in that the gel ratio is (10), and the weight of the melted portion is 600,000 to 2.5 million as measured by the gel permeation chromatography (Gpc) method. η 2. If you apply for a patent scope! The adhesive of the item contains a U-methyl acrylate polymer (A) having an average molecular weight of (10) to 10,000 and a weight average molecular weight of 8 Å. . A component obtained by crosslinking the twentieth (meth) acrylate polymer (B). 3. The adhesive of the second aspect of the invention is characterized in that the ratio of the second (meth)acrylic acid vinegar polymer (4) is 1 part by mass of the first (meth)acrylic acid vinegar polymer (1). . Parts by mass. 4. The adhesive of claim 2, wherein the above-mentioned second (2) methyl acrylate polymer (B) before crosslinking is contained as more than 1 mass / as a constituent component. '5 5% by mass of a monomer having a reactive functional group. 5. The poisoning agent according to item 4 of the patent application, wherein the second (meth)acrylic acid vinegar polymer (B) and the crosslinking agent having a crosslinkable group reactive with the above reactive functional group ((7) Reaction, thereby being cross-linked. 6. - Adhesive sheet comprising: a substrate and an adhesive layer, characterized in that the above-mentioned adhesive layer is formed by an adhesive of any one of claims 1 to 5. 7. The adhesive sheet of claim 6 is characterized in that: the base chair is an optical component. 8. An adhesive sheet comprising two release sheets and an adhesive layer held by the thin release sheet. The adhesive layer is in contact with the peeling surface of the two release sheets 201245389, and the adhesive layer is formed of the adhesive of any one of claims 1 to 5. 41