TW200808930A - Binder for sticking optical functionality film, opitical functionality film with binder and manufacturing method thereof - Google Patents
Binder for sticking optical functionality film, opitical functionality film with binder and manufacturing method thereof Download PDFInfo
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- TW200808930A TW200808930A TW096119221A TW96119221A TW200808930A TW 200808930 A TW200808930 A TW 200808930A TW 096119221 A TW096119221 A TW 096119221A TW 96119221 A TW96119221 A TW 96119221A TW 200808930 A TW200808930 A TW 200808930A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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Abstract
Description
200808930 九、發明說明： 【發明所屬之技術領域】 本發明係關於光學機能性薄膜用黏著劑、附有黏著劑之 光學機能性薄膜及其製造方法。更詳言之，本發明係關於 一種光學機能性薄膜用黏著劑，其係適合用於偏光板，尤 其是與視野角擴大薄膜等一體化而成的偏光板、或在偏光 板積層相位差板的情形，具有將該偏光板黏著液晶胞或相 位差板可得良好的耐久性，同時所得到的液晶顯示裝置在 高溫高濕環境下亦不發生光漏等特性；該附有黏著劑之光 學機能性薄膜及其製造方法。 【先前技術】 向來’於玻璃、陶瓷、金屬等被黏物透過黏著劑貼合有 機材料所構成的薄片時，由於經時導致經常發生薄片端部 剝落、發生浮起等不佳的情形。 爲了解決此種狀況，通常係提高構成黏著劑之成分的分 子量、提高交聯密度等，使用經提高黏荖性能的強黏著性 材料。但是，使用此種強黏著性材料的情況下，雖然保持 力提高，但在高溫高濕條件下，由於有機材料構成之薄片 收縮、膨潤，黏著劑無法隨之變化，而成爲各種問題的發 生要因。 可是，光學構件之中，有將偏光板貼合其表面來使用之 物’可列舉作爲其代表例的液晶顯示裝置（LCD )之液晶 胞。以下，用第1圖予以説明。 該液晶胞13通常具有以下構造：將已形成配向層的2 枚透明電極基板之配向層内側由間隔物預定之間隔的形式 200808930 來配置，並密封其周邊，使液晶材料挾持於該間隔中，同 時於上述2枚透明電極基板上分別隔著黏著劑12來配置偏 光板11。前述偏光板通常是在聚乙烯醇系偏光子的雙面貼 合光學各向同性薄膜，例如三乙酸纖維素（TAC )薄膜等 之具有3層構造的偏光薄膜所構成’更在其單面貼附液晶 胞等光學構件爲目的而設置黏著劑層。 又，如第2圖所示之模式圖，爲了改善視野角特性，也 有在偏光板21與液晶胞23之間透過黏著劑22及25來配 置相位差板24的情形。 將如上述構成之偏光板貼合於液晶胞等光學構件時，或 是貼合偏光板與相位差板時，變成異種材料之多層構造， 由於材料特性缺乏尺寸安定性，尤其是在高溫高濕環境 下，收縮、膨潤導致之尺寸變化相當大。作爲該偏光板之 黏著劑，因爲通常係使用前述之強黏著性之物、雖然可抑 制隨著偏光板之尺寸變化而來的是浮起、剝落，但是隨著 該偏光板尺寸變化而來的應力無法爲黏著劑層所吸收，偏 光板中的殘留應力變得不均勻。其結果爲發現TN液晶胞容 易有所謂的「光漏」、STN液晶容易有「色斑」的問題發 生。 爲了解決此類問題，揭示一種藉由例如在黏著劑添加可 塑劑等低分子量體，以適當地軟化來賦予應力緩和性之技 術（例如參照專利文獻1 )。但是，添加低分子量體成爲 剝離偏光板之際污染被黏物的原因，使保持力變低，導致 容易因經時而發生浮起、剝落。 因此，黏著耐久性與光漏防止性並存之物即爲課題。 200808930 【專利文獻1】日本專利第327292 1號公報 【發明內容】 4 本發明係在此種情況下，以提供一種黏著劑，適合於偏 光板與視野角擴大薄膜一體化偏光板或相位差板一體型偏 光板與液晶胞玻璃之貼合、偏光板與相位差板、相位差板 與相位差板、輝度向上薄膜與相位差板等形式、光學機能 性薄膜彼此間貼合爲目的。即，以提供一種黏著劑，其係 用於與上述液晶玻璃之貼合時，於高溫高濕環境下可同時 有耐久性與良好的黏著，所得到的影像顯示裝置具有不發 生光漏等特性，又，用於上述光學機能性薄膜間彼此貼合 時，於高溫高濕環境下可抑制此等光學機能性薄膜端部之 缺點爲目的。 另外，以提供一種在行動電話或車所搭載之影像顯示裝 置爲畫面周邊的外框部分可變窄，但對該等影像顯示裝置 的耐久性、耐光漏性可實現高信頼性的黏著劑爲目的。 本發明人等反覆鑽硏探討具有前述特性之光學機能性 薄膜用黏著劑的開發，發現一種黏著劑，其係以活性能量 線照射特定丙烯酸系共聚物與含活性能量線硬化型化合物 之黏著性材料而成；變形4000%以内之最大剪切荷重爲特 定値以上，且具有特定儲藏彈性模數（G’），其適合於該目 又發現，上述附有黏著劑之光學機能性薄膜係藉由在設 置於剝離片之剝離層上之黏著性材料層貼合光學機能性薄 膜，從剝離片側照射活性能量線，而可以良好的效率來製 造。 200808930 本發明係依據以上發現所完成者。 即，本發明係提供： (1) 一種光學機能性薄膜貼合用黏著劑，其特徵爲：其 係以活性能量線照射（A)含有羧基之單體的單體組成比大 於0.5質量％的丙烯酸系聚合物、與（B)包括活性能量線硬 化型化合物之黏著性材料而成，且對無鹼玻璃以黏合面積 100mm2(10mmxl0mm)進行貼合，以剪切速度（Klmm/min測 定剪切荷重時，變形4000 %以内之最大剪切荷重爲5 ON以 上、於23°C之儲藏彈性模數（G’）爲0.3〜15MPa ; (2) 如上述（1)記載之光學機能性薄膜貼合用黏著劑，其 在80°C之儲藏彈性模數（〇’）爲0.31^〜1(^?&; (3) 如上述（1)或（2)記載之光學機能性薄膜貼合用黏著 劑’其中光學機能性薄膜爲偏光板，且該光學機能性薄膜 貼合用黏著劑係用於將偏光板貼合於液晶玻璃胞； (4) 如上述（1)或（2)記載之光學機能性 '薄膜貼合用黏著 劑’其中光學機能性薄膜爲偏光板及/或相位差板，且該光 學機能性薄膜貼合用黏著劑係用於偏光板與相位差板之貼 合或是相位差板與相位差板之貼合； (5) 如上述（1)〜（4)記載之光學機能性薄膜貼合用黏著 劑’其中·含有羧基之單體爲（甲基）丙烯酸； (6) 如上述（1)〜（5)記載之光學機能性薄膜貼合用黏著 劑’其中（B)成分的活性能量線硬化型化合物爲分子量小於 1000之多官能（甲基）丙烯酸酯系單體； (7) 如上述（6)記載之光學機能性薄膜貼合用黏著劑，其 中多官能（甲基）丙烯酸酯系單體係具有環狀構造； 200808930 (8) 如上述（7)記載之光學機能性薄膜貼合用黏著劑，多 官能（甲基）丙烯酸酯系單體係具有三多異氰酸酯構造； (9) 如上述（1)〜（8)記載之光學機能性薄膜貼合用黏著 劑，其中（A)成分與（B)成分之含有比例係質量比爲1〇〇 : 1〜100 : 100 ； (10) 1如上述（1)〜（10)記載之光學機能性薄膜貼合用黏 著劑，其中黏著性材料係進一步具有含（C)可與丙烯酸共聚 物中的官能基反應之交聯劑、及（D)有機矽烷偶合劑之黏著 性材料； (11) 一種附有黏著劑之光學機能性薄膜，其特徵在於 其係於光學機能性薄膜之至少單面上具有由如上述（1)〜（10) 記載之黏著劑所成的層； (12) 如上述（11)記載之附有黏著劑之光學機能性薄 膜，其中光學機能性薄膜係偏光板或相位差板； (13) 如上述（11)或（12)記載之附有黏著劑之光學機能 性薄膜，其對無鹼玻璃之黏著力爲：貼合後，經過24小時 後爲0.2 N / 2 5 m m以上；且於貼合後，經過7日後爲4 0 N / 2 5 m m 以上； (14) 一種如上述（11)~(13)中任一項記載之附有黏著劑 之光學機能性薄膜之製法，其特徵在於：其係將光學機能 性薄膜貼合於設置在剝離片之剝離層上的黏著性材料層 後，從剝離片側照射活性能量線。 根據本發明，可提供一種光學機能性薄膜用黏著劑，其 適用於偏光板、尤其是與視野角擴大薄膜等一體化所構成 之偏光板，或於偏光板積層相位差板的情況’將該偏光板 200808930 黏著於液晶胞或相位差板可同時得良好的耐久性，具有所 得到之液晶顯示裝置在高溫高濕環境下不發生光漏等特 性；再提供一種附有該黏著劑之光學機能性薄膜。 又，根據本發明可提供一種可以良好效率製造前述附有 黏著劑之光學機能性薄膜之方法。 【實施方式】 本發明光學機能性薄膜用黏著劑係對無鹼玻璃以黏合 面積100mm2(10mmxl0mm)進行貼合，以剪切速度O.lmm/min φ 測定剪切荷重時，變形4000%以内之最大剪切荷重爲50N 以上。最大剪切荷重爲5 ON以上時，可同時得充分的黏著 力，於高溫高濕環境下之耐久性變得良好。從貼合時作業 性之觀點而言，此最大剪切荷重之上限爲200N左右。此最 大剪切荷重較佳爲50〜15 ON，更佳爲75〜13 ON。 又，前述最大剪切荷重係以下述方法來測定的値。 <最大剪切荷重之測定方法> 從附有黏著劑之偏光板切出1 0 m m寬、1 0 0 m m長的樣 φ 品，剝下剝離片（黏著劑層厚度25 // m )，以在無鹼玻璃 〔柯寧公司製「1 7 37」〕之端部之貼付面積成爲lOmmxlOmm 的方式來貼付後，在栗原製作所製之高壓鍋，以0.5MPa、 5(TC、20分鐘之條件進行加壓。之後，在23°C、相對濕度 5 0%之環境下放置24小時之後，在同環境下，把無鹼玻璃 中樣品未貼付側之端部、及樣品中未貼付側之端部裝著於 拉伸測試機（Ins tr on公司製），以剪切速度O.lmm/min往剪 切方向拉伸，測定其荷重。測定進行至變形量爲4000% (剪 切方向之變形量1000 // m)爲止，把到4000%變形爲止的 -10- 200808930 最大荷重當作最大剪切荷重。又，變形係以剪切方向之變 形量與黏著劑層之厚度比來表示。 又，本發明之黏著劑在23 °C之儲藏彈性模數（G，）必須 爲0.3〜15MPa。此儲藏彈性模數（G’）爲〇.3MPa以上時， 可得充分的光漏防止性。另外，15MPa以下時，黏著耐久 性變爲良好。從以上觀點而言，特佳爲23。(：之儲藏彈性模 數（G’）爲0·35〜12MPa。又，80°C之儲藏彈性模數（G，） 較佳爲0·1〜lOMPa，更佳爲0.3〜3MPa。 又’前述儲藏彈性模數（G ’）係以下述方法所測定的値。 <儲藏彈性模數（0’）之測定方法> 儲藏彈性模數（G ’）爲積層厚度3 0 /z m之黏著劑來製作 8ιηιηφ X3mm厚之圓柱狀試驗片，藉由扭轉剪斷法以下述條 件進行測定。 測定裝置：流改性公司製動態黏彈性測定裝置「動態分 析儀 RDAII(DYNAMIC ANALYZER RDAII) 頻率：1Hz200808930 IX. Description of the Invention: The present invention relates to an adhesive for an optical functional film, an optical functional film with an adhesive, and a method for producing the same. More specifically, the present invention relates to an adhesive for an optical functional film, which is suitable for use in a polarizing plate, in particular, a polarizing plate integrated with a viewing angle expansion film or the like, or a phase difference plate laminated on a polarizing plate. In the case where the polarizing plate is adhered to the liquid crystal cell or the phase difference plate, good durability can be obtained, and the obtained liquid crystal display device does not have characteristics such as light leakage in a high temperature and high humidity environment; the optical with an adhesive Functional film and method of manufacturing the same. [Prior Art] When a sheet made of an organic material such as glass, ceramics, or metal is adhered to an organic material through an adhesive, the sheet ends are often peeled off and floating is often caused. In order to solve such a situation, it is common to increase the molecular weight of the components constituting the adhesive, to increase the crosslinking density, and the like, and to use a highly adhesive material having improved adhesive properties. However, in the case of using such a strong adhesive material, although the holding power is improved, under the condition of high temperature and high humidity, the sheet formed by the organic material shrinks and swells, and the adhesive cannot be changed, which is a cause of various problems. . However, among the optical members, the polarizing plate is bonded to the surface thereof, and the liquid crystal cell of the liquid crystal display device (LCD) as a representative example thereof can be cited. Hereinafter, it will be explained using FIG. The liquid crystal cell 13 generally has a configuration in which the inner side of the alignment layer of the two transparent electrode substrates on which the alignment layer has been formed is disposed in the form of a predetermined interval of spacers 200808930, and the periphery thereof is sealed to hold the liquid crystal material in the space. At the same time, the polarizing plate 11 is placed on the two transparent electrode substrates via the adhesive 12, respectively. The polarizing plate is usually formed of a double-sided optically isotropic film of a polyvinyl alcohol-based polarizer, for example, a polarizing film having a three-layer structure such as a cellulose triacetate (TAC) film. An adhesive layer is provided for the purpose of attaching an optical member such as a liquid crystal cell. Further, in the pattern diagram shown in Fig. 2, in order to improve the viewing angle characteristics, the phase difference plate 24 may be disposed between the polarizing plate 21 and the liquid crystal cell 23 via the adhesives 22 and 25. When the polarizing plate having the above-described configuration is bonded to an optical member such as a liquid crystal cell, or when a polarizing plate and a phase difference plate are bonded together, it becomes a multilayer structure of a dissimilar material, and the dimensional stability of the material property is lacking, especially at a high temperature and high humidity. Under the environment, the dimensional changes caused by shrinkage and swelling are quite large. As the adhesive for the polarizing plate, since the above-mentioned strong adhesive property is generally used, it is possible to suppress floating and peeling as the size of the polarizing plate changes, but the size of the polarizing plate changes. The stress cannot be absorbed by the adhesive layer, and the residual stress in the polarizing plate becomes uneven. As a result, it has been found that the TN liquid crystal cell is susceptible to so-called "light leakage" and the STN liquid crystal is prone to "color spots". In order to solve such a problem, a technique of imparting stress relaxation by appropriately softening, for example, by adding a low molecular weight body such as a plasticizer to an adhesive (for example, refer to Patent Document 1). However, the addition of the low molecular weight body causes contamination of the adherend when the polarizing plate is peeled off, and the holding force is lowered, which tends to cause floating and peeling due to the passage of time. Therefore, the object of coexistence of adhesion durability and light leakage prevention is a problem. 200808930 [Patent Document 1] Japanese Patent No. 327292 1 SUMMARY OF THE INVENTION [Invention] In the present invention, the present invention provides an adhesive which is suitable for a polarizing plate and a viewing angle to enlarge a film-integrated polarizing plate or a phase difference plate. The integrated polarizing plate and the liquid crystal cell glass are bonded together, and the polarizing plate and the phase difference plate, the phase difference plate and the phase difference plate, the luminance upward film and the phase difference plate, and the optical functional film are bonded to each other. That is, in order to provide an adhesive which is suitable for adhesion to the liquid crystal glass, it can have both durability and good adhesion in a high-temperature and high-humidity environment, and the obtained image display device has characteristics such as no light leakage. Further, when the optical functional films are bonded to each other, the disadvantages of the ends of the optical functional films can be suppressed in a high-temperature and high-humidity environment. Further, in order to provide a video display device mounted on a mobile phone or a car, the outer frame portion of the screen is narrow, but the durability of the image display device and the light leakage resistance are high. purpose. The inventors of the present invention have repeatedly developed an adhesive for an optical functional film having the above characteristics, and have found an adhesive which is an active energy ray for adhering a specific acrylic copolymer to an active energy ray-curable compound. The material is formed; the maximum shear load within 4000% of deformation is above the specific enthalpy, and has a specific storage elastic modulus (G'), which is suitable for the purpose, and the optical functional film with the adhesive is borrowed. The optical functional film is bonded to the adhesive material layer provided on the release layer of the release sheet, and the active energy ray is irradiated from the release sheet side, whereby the optical energy ray can be produced with good efficiency. 200808930 The present invention has been completed on the basis of the above findings. That is, the present invention provides: (1) An adhesive for optical functional film bonding, characterized in that it is irradiated with an active energy ray (A) a monomer composition ratio of a carboxyl group-containing monomer of more than 0.5% by mass. An acrylic polymer and (B) an adhesive material including an active energy ray-curable compound, and bonded to an alkali-free glass at an adhesive area of 100 mm 2 (10 mm×10 mm), and sheared at a shear rate (Klmm/min) When the load is applied, the maximum shear load within 4000% of the deformation is 5 ON or more, and the storage elastic modulus (G') at 23 ° C is 0.3 to 15 MPa; (2) The optical functional film paste as described in the above (1) A combination of an adhesive having a storage elastic modulus (〇') at 80 ° C of 0.31 ^ 1 (^? &; (3) an optical functional film as described in the above (1) or (2) In the adhesive, the optical functional film is a polarizing plate, and the optical functional film bonding adhesive is used to bond the polarizing plate to the liquid crystal glass cell; (4) as described in (1) or (2) above. Optical functional 'film adhesive adhesive' wherein the optical functional film is a polarizing plate and/or phase a disparity plate, and the optical functional film bonding adhesive is used for bonding a polarizing plate and a phase difference plate or a phase difference plate and a phase difference plate; (5) as described above (1)~( 4) The optical functional film-bonding adhesive described in the above, wherein the monomer having a carboxyl group is (meth)acrylic acid; (6) The optical functional film bonding adhesive described in the above (1) to (5) The active energy ray-curable compound of the component (B) is a polyfunctional (meth) acrylate monomer having a molecular weight of less than 1,000. (7) The optical functional film-bonding adhesive according to the above (6) The polyfunctional (meth) acrylate type single system has a ring structure; 200808930 (8) The optical functional film bonding adhesive according to the above (7), polyfunctional (meth) acrylate series (Embodiment) The optical functional film-bonding adhesive according to the above (1) to (8), wherein the ratio of the content of the component (A) to the component (B) is 1 〇〇: 1 to 100 : 100 ; (10) 1 as described in (1) to (10) above The adhesive for film bonding, wherein the adhesive material further has an adhesive material comprising (C) a crosslinking agent reactive with a functional group in the acrylic copolymer, and (D) an organic decane coupling agent; An optical functional film with an adhesive attached to at least one side of an optical functional film having a layer formed of the adhesives as described in the above (1) to (10); (12) An optical functional film with an adhesive according to the above (11), wherein the optical functional film is a polarizing plate or a phase difference plate; (13) an optical with an adhesive as described in (11) or (12) above. The functional film has an adhesion to the alkali-free glass: after the bonding, it is 0.2 N / 2 5 mm or more after 24 hours; and after the bonding, it is 4 0 N / 2 5 mm or more after 7 days; (14) The method for producing an optical functional film with an adhesive according to any one of the above (11) to (13), wherein the optical functional film is attached to the release sheet. After peeling off the layer of adhesive material on the layer, the active energy is irradiated from the side of the release sheet . According to the present invention, it is possible to provide an optical functional film adhesive which is suitable for use in a polarizing plate, in particular, a polarizing plate formed by integrating a viewing angle expansion film or the like, or in the case of a polarizing plate laminated phase difference plate. The polarizing plate 200808930 adheres to the liquid crystal cell or the phase difference plate to obtain good durability at the same time, and has the characteristics that the obtained liquid crystal display device does not cause light leakage in a high temperature and high humidity environment; and further provides an optical function with the adhesive Film. Further, according to the present invention, it is possible to provide a method for producing the above optical functional film with an adhesive which can be efficiently produced. [Embodiment] The adhesive for an optical functional film of the present invention is bonded to an alkali-free glass at an adhesive area of 100 mm 2 (10 mm x 10 mm), and the shear load is measured at a shear rate of 0.1 mm/min φ, and the deformation is within 4000%. The maximum shear load is 50N or more. When the maximum shear load is 5 ON or more, sufficient adhesion can be obtained at the same time, and the durability in a high-temperature and high-humidity environment becomes good. The upper limit of the maximum shear load is about 200 N from the viewpoint of workability at the time of bonding. The maximum shear load is preferably 50 to 15 ON, more preferably 75 to 13 ON. Further, the maximum shear load is a enthalpy measured by the following method. <Measurement method of maximum shear load> A sample of 10 mm wide and 100 mm long was cut out from a polarizing plate with an adhesive, and the release sheet was peeled off (adhesive layer thickness 25 // m) After the postage area of the base of the non-alkali glass ("7 7" made by Corning Co., Ltd.) is lOmmxlOmm, the pressure cooker made by Kurihara Co., Ltd. is 0.5 MPa, 5 (TC, 20 minutes). After pressurization, after being left in an environment of 23 ° C and a relative humidity of 50% for 24 hours, in the same environment, the end of the sample on the unapplied side of the alkali-free glass and the end of the unapplied side of the sample were placed. The part was attached to a tensile tester (manufactured by Ins tron Co., Ltd.), and was drawn at a shear rate of 0.1 mm/min in a shearing direction to measure the load. The measurement was carried out until the deformation amount was 4000% (deformation in the shear direction) The maximum load of -10- 200808930 up to 4000% deformation is taken as the maximum shear load until the amount is 1000 // m). Further, the deformation is expressed by the ratio of the deformation amount in the shear direction to the thickness of the adhesive layer. The storage modulus (G,) of the adhesive of the present invention at 23 ° C must be 0.3 to 15 MPa. When the elastic modulus (G') is 〇.3 MPa or more, sufficient light leakage prevention property can be obtained. When the pressure is 15 MPa or less, the adhesion durability is good. From the above viewpoint, it is particularly preferably 23. (: The storage elastic modulus (G') is from 0. 35 to 12 MPa. Further, the storage elastic modulus (G,) at 80 ° C is preferably from 0.1 to 10 MPa, more preferably from 0.3 to 3 MPa. The modulus of elasticity (G ') is 値 measured by the following method. <Measurement method of storage elastic modulus (0') > Storage elastic modulus (G ') is an adhesive having a laminate thickness of 3 0 /zm A cylindrical test piece of 8 ιηιηφ X 3 mm thick was produced and subjected to the following conditions by a torsional shear method. Measuring device: Dynamic viscoelasticity measuring device manufactured by Flow Modification Co., Ltd. "DYNAMIC ANALYZER RDAII" Frequency: 1 Hz
溫度：2 3 °C、8 0 °C 具有則述儲藏彈性模數及黏著力之本發明光學機能性 薄膜用黏著劑係以活性能量線照射（A)含有羧基之單體的 單體組成比大於0.5質量％的丙烯酸系聚合物、與（B)包括 活性能量線硬化型化合物之黏著性材料而成之黏著劑。 該黏著性材料中（A )成分之丙烯酸系共聚物，可列舉（甲 基）丙烯酸酯系共聚物。 又’本發明中，所謂的（甲基）丙烯酸酯係指丙烯酸酯及 200808930 甲基丙烯酸酯兩者。其他類似用語亦同。 前述（甲基）丙烯酸酯系共聚物，由各種交聯方法之交聯 係使用具有可交聯點之物。此類具有交聯點之（甲基）丙烯 酸酯系共聚物並無特殊限制，可以從以往作爲黏著劑樹脂 成分之慣用（甲基）丙烯酸酯系共聚物之中，加以適當地選 擇使用任意者。 此類具有交聯點之（甲基）丙烯酸酯系共聚物，較佳者可 列舉酯部分之烷基碳數爲1〜2 0之（甲基）丙烯酸酯與分子 φ 内具有交聯性官能基之單體及根據需要使用之其他單體的 共聚物。在此，酯部分的烷基碳數爲的（甲基）丙烯酸 酯之實例，可列舉（甲基）丙烯酸甲酯、（甲基）丙烯酸乙酯、 (甲基）丙烯酸丙酯、（甲基）丙烯酸丁酯、（甲基）丙烯酸戊 酯、（甲基）丙烯酸己酯、（甲基）丙烯酸環己酯、（甲基）丙烯 酸2-乙基己酯、（甲基）丙烯酸異辛酯、（甲基）丙烯酸癸酯、 (甲基）丙烯酸十二烷酯、（甲基）丙烯酸肉豆蔻酯、（甲基）丙 烯酸棕櫚酯、（甲基）丙烯酸硬脂酸酯。此等能夠單獨使用1 φ 種，亦可組合使用2種以上。 ' 另一方面，分子內具有交聯性官能基之單體較佳爲含有 作爲官能基的羥基、羧基、胺基、醯胺基中之至少1種， 具體例可列舉（甲基）丙烯酸2-羥基乙酯、（甲基）丙烯酸2-羥基丙酯、（甲基）丙烯酸3-羥基丙酯、（甲基）丙烯酸2-羥 基丁酯、（甲基）丙烯酸3-羥基丁酯、（甲基）丙烯酸4-羥基 丁酯等（甲基）丙烯酸羥基烷酯；丙烯醯胺、甲基丙烯醯胺、 N-甲基丙烯醯胺、N-甲基甲基丙烯醯胺、N-羥甲基丙烯醯 胺、N-羥甲基甲基丙烯醯胺等丙烯醯胺類；（甲基）丙烯酸 -12- 200808930 單甲基胺基乙酯、（甲基）丙烯酸單乙基胺基乙酯、（甲基） 丙烯酸單甲基胺基丙酯、（甲基）丙烯酸單乙基胺基丙酯等 (甲基）丙烯酸單烷基胺基烷酯；丙烯酸、甲基丙烯酸、巴 豆酸、順丁烯二酸、伊康酸、檸康酸等乙烯性飽和羧酸等。 此等單體能夠單獨使用1種，亦可組合使用2種以上。 (A)成分之丙烯酸系聚合物係含有含羧基之單體之 物，其中單體組成比含超過〇. 5質量的量。有含有羧基 之單體的含有量超過0.5質量％時，藉由與後述交聯劑反 φ 應，可充分地交聯，耐久性爲良好。含有羧基之單體的更 佳含有量爲（ί. 55〜15質1 %，特佳爲1〜10質量％之範圍。 本發明中含有羧基之單體較佳爲（甲基）丙烯酸。 該黏著性材料中作爲（A )成分所用的（甲基）丙烯酸酯 系共聚物對其共聚合形態並無特殊限制，無規、嵌段、接 枝共聚物中任一種。又，係使用分子量以重量平均分子量 爲50萬以上之物。其重量平均分子量爲50萬以上時，與 被黏物之密接性、黏著耐久性變得相當充分，不發生浮起、 φ 剝落等。考慮密接性及黏著耐久性等時，較佳爲其重量平 均分子量爲60萬〜220萬之物，特佳爲70萬〜200萬之物。 又，上述重量平均分子量係依照凝膠滲透色譜法（GPC) 法測定之換算聚苯乙烯的値。 此（A )成分之（甲基）丙烯酸酯系共聚物可使用1種， 亦可組合使用2種以上。 該黏著性材料中作爲（B )成分所使用之活性能量線硬 化型化合物，較佳可列舉分子量小於1 000之多官能（甲基） 丙烯酸酯系單體。 -13- 200808930 該分子量小於1 〇〇〇之多官能（甲基）丙烯酸酯系單體，可 列舉例如1，4-丁二醇（甲基）丙烯酸酯、丨，6_己二醇（甲基）丙 烯酸酯、新戊二醇（甲基）丙烯酸酯、聚乙二醇二（甲基）丙嫌 酸酯、新戊二醇己二酸二（甲基）丙烯酸酯、羥基三甲基乙 酸新戊二醇二（甲基）丙烯酸酯、二環戊基二（甲基）丙烯酸 酯、己內酯改性二環戊烯基二（甲基）丙烯酸酯、環氧乙院 改性磷酸二（甲基）丙烯酸酯、二（丙烯醯氧基乙基）三多 異氰酸酯、燦丙基化環己基二（甲基）丙嫌酸酯、9,9-雙〔4-(2-丙燦醯基氧基乙氧基）苯基〕莽等2官能型；三經甲 基丙烷三（甲基）丙烯酸酯、二季戊四醇三（甲基）丙烯酸酯、 丙酸改性二季戊四醇三（甲基）丙烯酸酯、季戊四醇三（甲基） 丙烯酸酯、環氧丙烷改性三羥甲基丙烷三（甲基）丙烯酸 酯、參（丙烯醯氧基乙基）三多異氰酸酯等3官能型；二丙 三醇四（甲基）丙烯酸酯、季戊四醇四（甲基）丙烯酸酯等4官 能型；丙酸改性二季戊四醇五（甲基）丙烯酸酯等5官能型； 二季戊四醇六（甲基）丙烯酸酯、己內酯改性二季戊四醇六 (甲基）丙烯酸酯等6官能型等。 本發明中該等多官能（甲基）丙烯酸酯系單體可以僅單獨 使用1種，亦可組合使用2種以上，然而該等之中較佳爲 在骨架構造中含有環狀構造者。環狀構造爲碳環式構造也 可以是雜環式構造，又，可以是單環式構造也可以是環式 構造。此種多官能（甲基）丙烯酸酯系單體，例如二（丙烯 醯氧基乙基）三多異氰酸酯，參（丙烯醯氧基乙基）三多 異氰酸酯等具有三多異氰酸酯構造之物；二羥甲基二環戊 烷二丙烯酸酯、環氧乙烷改性六氫化鄰苯二甲酸二丙烯酸 -14 - 200808930 酯、三環辛基二甲醇丙烯酸酯、新戊二醇改性三羥甲基丙 烷二丙烯酸酯、金剛烷二丙烯酸酯、9,9 -雙〔4-(2 -丙醯基 氧基乙氧基）苯基〕莽等爲適合。 又’可使用活性能量線硬化型丙烯酸酯系低聚合物作爲 (B)成分。該丙烯酸酯系低聚合物較佳爲重量平均分子量 5 0,000以下之物。此種丙烯酸酯系低聚合物的實例，可列 舉聚酯丙烯酸酯系、環氧基丙烯酸酯系、胺基甲酸酯丙烯 酸酯系、聚醚丙烯酸酯系、聚丁二烯丙烯酸酯系、聚矽氧 _ 丙烯酸酯系等。 在此’聚酯型丙烯酸酯系低聚物能夠藉由將經由多元羧 酸與多元醇的縮合而得到之在兩端具有羥基之聚酯低聚物 的羥基’使用（甲基）丙烯酸加以酯化，或是藉由將在多元 羧酸加添環氧烷而得到之低聚物末端的羥基，使用（甲基） 丙烯酸加以酯化而得到。環氧基丙烯酸酯系低聚合物例如 能夠藉由使比較低分子量的雙酚型環氧樹脂或酚醛清漆型 環氧樹脂的矽氧烷環，與（甲基）丙烯酸反應來加以酯化而 φ 得到。又，亦可使用將此環氧基丙烯酸酯系低聚合物以部 分二元羧酸酐改性之羧基改性型環氧基丙烯酸酯低聚合 物。丙烯酸胺基甲酸酯系低聚物，例如能夠藉由將聚醚多 元醇或聚酯多元醇與多異氰酸酯反應而得到的聚胺基甲酸 酯低聚物，使用（甲基）丙烯酸加以酯化而得到；多元醇丙 烯酸酯系低聚物能夠藉由使用（甲基）丙烯酸將聚醚多元醇 的羥基加以酯化而得到。 上述丙烯酸酯系低聚合物之重量平均分子量係以GPC 法測定之標準聚甲基丙烯酸甲酯所換算之値，較佳爲 -15- 200808930 50,000以下，更佳爲500〜50,000，尤佳爲3,000〜40,000 之範圍來選擇。 該等丙烯酸酯系低聚合物可以單獨使用1種，亦可組合 使用2種以上。 本發明中，可使用在側鏈經導入具有（甲基）丙烯醯基 的基之加成丙烯酸酯系聚合物作爲（B)成分。此種加成丙 燒酸酯系聚合物係使用則述（A )成分之（甲基）丙酸酯 系共聚物中所説明的（甲基）丙烯酸酯、與在分子内具有交 • 聯性官能基之單體的共聚物，藉由於部份該共聚物之交聯 性官能基中，使（甲基）丙烯醯基及具有與交聯性官能基 反應之基的化合物反應而得。該加成丙烯酸酯系聚合物的 重量平均分子量以聚苯乙烯換算，通常是50萬〜200萬。 本發明中作爲（B)成分可從前述多官能丙烯酸酯系單 體、丙烯酸酯系低聚合物及加成丙儲酸酯系聚合物之中， 適當地選用1種，亦可選擇倂用2種以上。 本發明中前述（A)成分之丙烯酸系共聚物與（B)成分 φ 之活性能量線硬化型化合物的含有比例，從得到的黏著劑 之性能面來看，以質量比而言，較佳爲100: 1〜100: 100, 更佳爲100 : 5〜1 00 : 50，尤佳爲100 : 10〜100 : 40之範 圍。 又，本發明黏著劑係含有上述（A )成分及（B )成分的 情況下，照射活性能量線後之儲藏彈性模數（G ’）係滿足 前述條件。即，23°C之儲藏彈性模數（G’）爲0.3〜15MPa， 更佳爲80°C之儲藏彈性模數（G’）爲0.3〜lOMPa。 該黏著性材料可視需要含有光聚合引發劑。該光聚合引 -16- 200808930 發劑，可列舉例如苯偶姻、苯偶姻甲基醚、苯偶姻乙基醚、 苯偶姻異丙基醚、苯偶姻正丁基醚、苯偶姻異丁基醚、苯 乙酮、二甲基胺基苯乙酮、2,2-二甲氧基-2-苯基苯乙酮、 2,2-二乙氧基-2-苯基苯乙酮、2-羥基-2-甲基-卜苯基丙烷-1-酬、1-經基環己基本基嗣、2 -甲基-1·[4·(甲硫基）本基]-2· 味啉-丙烷-1-酮、4-(2-羥基乙氧基）苯基-2(羥基-2-丙基） 酮、二苯基酮、對苯基二苯基酮、4，4’-二乙基胺基二苯基 酮、二氯二苯基酮、2-甲基蒽醌、2-乙基蒽醌、2-第三丁基 蒽醌、2-胺基蒽醌、2-甲基噻噸酮、2-乙基噻噸酮、2-氯噻 噸酮、2，4-二甲基噻噸酮、2,4-二乙基噻噸酮、苄基二甲基 縮酮、苯乙酮二甲基縮酮、對二甲基胺基苯甲酸酯、寡〔 2-經基-2-甲基-1〔 4 - ( 1-甲基乙烯基）苯基〕丙酮〕、2,4,6-三甲基苯甲醯基-二苯基-膦氧化物等。該等可單獨使用1 種，亦可組合使用2種以上，又，其摻混量相對於1 〇〇質 量份之前述（B)成分100質量份，通常係選於〇.2〜20質 量份之範圍。 該黏著性材料視需要，可含有作爲（C )成分之可與丙 烯酸共聚物中的官能基反應之交聯劑。該交聯劑並無特殊 限制，可以從習知丙烯酸系黏著劑中慣用來作爲交聯劑的 任意者加以適當地選擇使用。此種交聯劑，可列舉例如多 異氰酸酯化合物、環氧基樹脂、三聚氰胺樹脂、尿素樹脂、 二醛類、羥甲基聚合物、吖環丙烷系化合物、金屬鉗合化 合物、金屬烷氧化物、金屬鹽等，但較佳係使用多異氰酸 酯化合物。 在此，多異氰酸酯化合物可舉出例如甲苯二異氰酸酯、 -17- 200808930 二苯基甲烷二異氰酸酯、二甲苯基二異氰酸酯等芳香族多 異氰酸酯、六亞甲二多異氰酸酯等脂肪族多異氰酸酯、異 佛爾酮二異氰酸酯、加氫二苯基甲烷二異氰酸酯等脂環族 多異氰酸酯等’及該等之縮二脲體、三多異氰酸酯體、而 且可舉出與乙二醇、丙二醇、新戊二醇、三羥甲基丙烷、 蓖麻油等含低分子活性氫化合物的反應物之加成物等。 在本發明中該交聯劑能夠單獨使用1種，亦可組合使用 2種以上。又，其使用量亦取決於交聯劑的種類，相對於 100質量份前述（甲基）丙烯酸酯系共聚物，通常爲0.01〜20 質量份，較佳爲0.1〜10質量份之範圍。 該黏著性材料視需要可含有作爲（D )成分的有機矽烷 偶合劑。藉由使其含有機矽烷偶合劑，在把偏光板貼合於 例例如液晶玻璃胞等時，黏著劑與玻璃胞之間的密接性變 得更爲良好。該有機矽烷偶合劑，係在分子内具有至少1 個烷氧基矽烷基的有機矽化合物，與黏著劑成分之相溶性 良好且具有光透過性，例如實質上透明之物爲較佳。此種 有機矽烷偶合劑之添加量，相對於黏著性材料之1 〇〇質量 份固形分，較佳爲0.001〜10質量份之範圍，特佳爲0.005 〜5質量份之範圍。 前述有機矽烷偶合劑之具體例，可列舉乙烯基三甲氧基 矽烷、乙烯基三乙氧基矽烷、3_甲基丙烯醯氧基丙基三甲 氧基矽烷等含有聚合性不飽和基之矽化合物、3 -環氧丙氧 基丙基三甲氧基矽烷、2-(3,4-環氧基環己基）乙基三甲氧 基矽烷等具有環氧基構造之矽化合物、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- -18- .200808930 (2-胺基乙基）-3-胺基丙基甲基二甲氧基矽烷等含有胺基 之矽化合物、3-氯丙基三甲氧基矽烷等。該等可單獨使用1 種，亦可組合使用2種以上。 該黏著性材料在無損本發明目的範圍，可視需要在丙烯 酸系黏著劑中添加一般所使用的各種添加劑，例如賦予黏 著劑、抗氧化劑、紫外線吸收劑、光安定劑、軟化劑、塡 料等。 本發明之光學機能性薄膜用黏著劑是對如此獲得的述 黏著性材料照射活性能量線而成之物。 活性能量線，可列舉例如紫外線、電子線等。上述紫外 線可用高壓水銀燈、無電極燈、氙燈等，另一方面，電子 線係藉由電子線加速器等而得。該活性能量線之中，特佳 爲紫外線。又，在使用電子線時，可不添加光聚合引發劑 而形成黏著劑。 對該黏著性材料之活性能量線照射量，可由具有前述儲 藏彈性模數、對於無鹼玻璃及聚碳酸酯具有黏著力之黏著 劑來適當地選擇，但紫外線的情況下，較佳爲照度50〜 1000mW/cm2、光量50〜lOOOmJ/cm2，在電子線的情況下， 較佳爲1 0〜1 0 0 0 k r a d之範圍。 本發明之光學機能性薄膜用黏著劑係適用於由偏光薄 膜單獨構成的偏光板，可使用將該偏光板例如使其黏著於 液晶玻璃胞，然而特別適用於由偏光薄膜與視野角擴大薄 膜一體化而成的偏光板，較佳爲使用將該偏光板例如使其 黏著於液晶玻璃胞。 前述偏光薄膜與視野角擴大薄膜一體化而成的偏光 -19- 200808930 板’可列舉例如在聚乙烯醇系偏光子的雙面分別貼合三乙 酸纖維素（TAC )薄膜所構成的偏光薄膜之單面上貼合例 如，藉由塗布設置碟狀液晶構成之視野角擴大機能層、或 以黏著劑貼合視野角擴大薄膜等。在該情況中，黏著劑係 設置於前述視野角擴大機能層或視野角擴大薄膜側。 又’如第2圖所示，在偏光板與液晶玻璃胞之間有相位 差板的情況下，本發明之光學機能性薄膜用黏著劑可以適 當地使用。也就是說，製造以本發明之黏著劑貼合偏光薄 φ 膜單獨構成之偏光板與相位差板的光學薄膜，並以黏著劑 貼合該光學薄膜之相位差板與液晶玻璃胞。在此，貼合相 位差板與液晶玻璃胞之黏著劑並無特殊限制，可使用一般 用於貼合偏光板與液晶玻璃胞之黏著劑。具體而言，可列 舉特開平11- 1 3 1 03 3所揭示的由丙烯酸系共聚物、交聯劑 及矽烷化合物所構成之黏著劑組成物等。另外，偏光板與 液晶玻璃胞的貼合亦可使用本發明黏著劑。 本發明黏著劑較佳爲凝膠分率85 %以上。也就是說，在 φ 有機溶劑中萃取程度的低分子量成分少時，在加熱下、溫 熱下的環境中，浮起、剝落及對被黏物汚染爲少，凝膠分 率85%以上之黏著劑之耐久性、安定性高。凝膠分率更佳 爲 90 〜99.9%。 使用本發明光學機能性薄膜用黏著劑，藉由如前述地在 液晶玻璃胞或相位差板黏著偏光板所製作的液晶顯示裝 置’係在筒溫筒濕環境下也不發生光漏，且偏光板與液晶 玻璃胞之黏著耐久性優良。 本發明又提供一種附有黏著劑之光學機能性薄膜，其係 -20- 200808930 在偏光板上附有具前述本發明光學機能性薄膜用黏著劑所 構成之層。光學機能性薄膜中之偏光板，如前所述，可以 是偏光薄膜單獨構成之物，然而在如第1圖所示構成的情 況下’較佳爲偏光薄膜與視野角擴大薄膜一體化所構成之 物0 又’前述光學機能性薄膜用黏著劑構成之層的厚度，一 般爲1〜100/zm左右，較佳爲1〜50#m，更佳爲2〜30/z m 〇 關於該附有黏著劑之光學機能性薄膜的製造方法中，可 以是在偏光板等光學機能性薄膜上設置本發明黏著劑所構 成之層而得的方法，並無特殊限制，但如果由以下所示之 本發明方法，可以良好效率製造預期的附有黏著劑之光學 機能性薄膜。 本發明之方法中，藉由在剝離片之剝離層上所設置的黏 著性材料層上貼合偏.光板等光學機能性薄膜後，以從該剝 離片側將活性能量線照射在前述黏著劑材料層（其係由具 有前述特定特性之本發明黏著劑所構成的層）的方式，可 以得到本發明之附有黏著劑之光學機能性薄膜。 前述剝離片.，可列舉在聚對苯二甲酸乙二酯、聚對苯二 甲酸丁二酯、聚萘酸乙二酯等聚酯薄膜；聚丙烯、聚乙烯 等聚烯烴薄膜等塑膠薄膜上，塗布聚矽氧樹脂等剝離劑而 設置剝離層之物。該剝離片之厚度並無特殊限制，但一般 爲2 0〜1 5 0 /z m左右。 另外，關於黏著性材料及活性能量線的照射條件係與前 述本發明之光學機能性薄膜用黏著劑中的説明類似。 -21- .200808930 在剝離片上設置黏著性材料層的方法，可使用例如棒塗 法法、刀塗法、輥塗法、平板塗法、模塗法、凹版塗法等， 塗覆黏著性材料使其形成塗膜、乾燥之方法。乾燥條件並 無特殊限制，但一般爲在5 0〜150 X：中10秒〜10分鐘左右。 又，如2圖所示構成的情況下，偏光板是由薄膜單獨構 成的情形爲多.，而光學機能性薄膜用黏著劑構成之層的厚 度係與前述相同。關於圖所示之構成中附有黏著劑之偏光 板的製造方法，可以是與上述相同偏光板上設置由本發明 φ 黏著劑所構成層之物，但是並無特殊限制。藉由上述之本 發明製造方法可以有效率地製造。 再者，如第2圖所示構成的情況下，可製作在2枚剝離 片的剝離層側以鄰接的方式挾持上述偏光板用黏著劑所構 成之黏著薄片，用該黏著薄片貼合偏光板與相位差板。此 處用上述（B )成分作爲黏著劑時，活性能量線可在2枚剝 離片挾持黏著劑後予以照射，亦可在一邊的剝離片設置黏 著劑，用活性能量線照射後再挾持其他剝離片。另外，活 φ 性能量線之照射條件係依據從具有前述特定特性之本發明 黏著劑所構成之層加以選擇。 本發明附有黏著劑之光學機能性薄膜係對無鹼玻璃之 黏著力，在貼合後，經過24小時後爲0.2N/25mm以上；且 較佳爲於貼合後，經過7日後爲40N/2 5 mm以上。上述經過 24小時後之黏著力爲0.2N/25mm以上時，可以充分的黏著 力將偏光板等光學機能性薄膜貼合於例如液晶玻璃胞。更 佳爲黏著力爲1.0〜35N/25mm。又，上述經過7日後之黏 著力爲40N/2 5 mm以上時，上述貼合變得更爲強固。更佳爲 -22- .200808930 黏著力係45N/25mm以上。黏著力的上限並無特殊限制，惟 對光學機能性薄膜之強度，一般爲50N/25mm左右。 此外，關於上述黏著力之測定方法詳述於後。 【實施例】 黏著，藉由實施例更詳細地説明本發明，但本發明並不 受此等所限制。 又，實施例1〜6、比較例1所得黏著劑的性能及附有黏 著劑之偏光板的性能，係用以下所示要領求得。 φ ( 1)黏著劑之儲藏彈性模數 根據說明書本文所記載之方法，測定23°C及80°C之儲 藏彈性模數。 (2)黏著力（對無鹼玻璃之黏著力） 從附有黏著劑之偏光板切出25mm寬、100mm長的樣 品，將剝離片剝除（黏著劑層之厚度25 μ m )貼附於無鹼 玻璃〔柯寧公司製「1 737」〕之後，用栗原製作所製高壓 鍋，以0.5MPa、50°C、20分鐘之條件進行加壓。之後在23 φ °C、相對濕度50%的環境下放置24小時或168小時後，在 相同環境下用拉伸試驗機（Orieteck公司製tensilon)以剝 離速度300mm/min、剝離角度180°的條件測定黏著力。 (3 )最大剪切荷重 根據記載於說明書本文之方法，求出到4000%變形爲止 時的最大剪切荷重。 (4)凝膠分率 將黏著劑厚25 /z m取樣80mmx80mm的尺寸’用精密天 秤秤量僅包於聚酯製篩網（篩網尺寸200)之黏著劑的重 23- 200808930 量。此時之重量作爲Ml。用索氏抽提器（Soxhlet)(抽出器） 在乙酸乙酯溶劑中使浸漬黏著劑，進行回流處理1 6小時。 之後取出黏著劑，在溫度23°C、相對濕度50%的環境下使 其風乾24小時，更進一步的在80°C烘箱中使其乾燥1 2小 時。乾燥後，用精密天秤秤量僅黏著劑之重量。此時的重 量當作M2。凝膠分率係以（M2/M1 ) xlOO來表示（％ )。 (5 )附有黏著劑之偏光板之耐久性 將附有黏著劑之偏光板藉由裁斷裝置（荻野精機製作所 φ 公司製超級裁剪機「PN1-600」）調整爲23 3mmx309mm尺 寸後，貼合於無鹼玻璃〔柯寧公司製「1737」〕後，用栗 原製作所公司製高壓鍋以0.5MPa、50°C、20分鐘之條件進 行加壓。之後，投入下述各耐久條件之環境下，在200小 時後取出，在23 °C、相對濕度50%之環境下，用10倍率 放大透鏡進行觀察，用以下判定基準評價耐久性。 〇：4邊之中，在從外周端部〇.6mm以上處無缺點。 △ : 4邊之中任1邊上，從外周端部0.6mm以上處有浮 起、剝落、發泡、線條等小於0.1 mm之黏著劑外觀異常缺 點。 x:4邊之中任1邊上，從外周端部0.6mm以上處有浮起、 剝落、發泡、線條等0· 1 mm以上之黏著劑外觀異常缺點。 <耐久條件> 60°C ·相對濕度90%環境、80°C、90°C —20 °C拉60°C之各30分鐘的熱震盪試驗、200循環 (6 )光漏性能 將附有黏著劑之偏光藉由裁斷裝置（荻野精機製作所公 -24- .200808930 司製超級裁剪機「PN1-600」）調整爲233mmx309mm尺寸後、 貼合於無鹼玻璃〔柯寧公司製「1737」〕後，用栗原製作所 公司製高壓鍋以0.5MPa、50°C、20分鐘之條件進行加壓。 又，上述貼合在、無鹼玻璃的表裏將附有黏著劑之偏光板以 偏光軸爲尼柯爾正交狀態的方式來進行。將該狀態以80°C放 置200小時。之後，在23°C、相對濕度50%之環境下放置2 小時，且在同環境下用以下所示方法評價光漏性。 使用大塚電子公司製MCPD-2000，測定第3圖所示各領 ^ 域之明度，且將明度差」L*以下式求出，作爲光漏性： ZIL*= [ (b+c+d+e) /4] -a (惟，a、b、c、d及e分別爲A領域、B領域、C領域、 D領域及E領域中預定的測定點（各領域中央部1個位置） 之明度。）。」L*値越小時，表示光漏少。 (7 )光學薄膜之耐久性 將光學薄膜藉由裁斷裝置（荻野精機製作所公司製超級 裁剪機「PN1-600」）調整爲100mmxl74mm尺寸後，將相 位差板的黏著加工側貼合於厚度700 v m之鹼玻璃〔柯寧公 司製「1 737」〕後，用栗原製作所公司製高壓鍋，以0.5MPa、 50°C、20分鐘之條件進行加壓。之後，投入下述各耐久條 件之環境下，200小時後取出，在23 °C、相對濕度50%之 環境下用1〇倍率放大透鏡觀察偏光板與相位差板之界 面，用以下之判定基準評價耐久性。 〇：4邊之中，偏光板與相位差板的界面無浮起、剝落。 X: 4邊之中的1邊，偏光板與相位差板之界面有浮起、 剝落。 <耐久條件> -25 - •200808930Temperature: 2 3 ° C, 80 ° C The adhesive for the optical functional film of the present invention having the storage elastic modulus and the adhesive force is irradiated with active energy rays (A) monomer composition ratio of the carboxyl group-containing monomer. An adhesive comprising an acrylic polymer of more than 0.5% by mass and (B) an adhesive material comprising an active energy ray-curable compound. The acrylic copolymer of the component (A) in the adhesive material may, for example, be a (meth)acrylate copolymer. Further, in the present invention, the term "(meth)acrylate" means both acrylate and 200808930 methacrylate. Other similar terms are the same. In the above (meth) acrylate-based copolymer, a crosslinkable system is used for cross-linking by various crosslinking methods. The (meth) acrylate-based copolymer having such a cross-linking point is not particularly limited, and may be appropriately selected from conventional (meth) acrylate-based copolymers which are conventionally used as an adhesive resin component. . Such a (meth) acrylate-based copolymer having a cross-linking point, preferably a (meth) acrylate having an alkyl group having an alkyl group number of 1 to 2 0 and a cross-linking function in the molecule φ a copolymer of a monomer and other monomers used as needed. Here, examples of the (meth) acrylate having an alkyl group number of the ester moiety include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, and (methyl). ) butyl acrylate, amyl (meth) acrylate, hexyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate , (meth) methacrylate, dodecyl (meth)acrylate, myristyl (meth)acrylate, palmityl (meth)acrylate, stearate (meth)acrylate. These can be used alone or in combination of two or more. On the other hand, the monomer having a crosslinkable functional group in the molecule preferably contains at least one of a hydroxyl group, a carboxyl group, an amine group and a guanamine group as a functional group, and specific examples thereof include (meth)acrylic acid 2 -hydroxyethyl ester, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 3-hydroxybutyl (meth)acrylate, ( Hydroxyalkyl (meth) acrylate such as 4-hydroxybutyl methacrylate; acrylamide, methacrylamide, N-methyl acrylamide, N-methyl methacrylamide, N-hydroxyl Acrylamide such as methacrylamide or N-methylol methacrylamide; (meth)acrylic acid-12- 200808930 monomethylaminoethyl ester, monoethylaminoethyl (meth)acrylate a monoalkylaminoalkyl (meth)acrylate such as an ester, a monomethylaminopropyl (meth)acrylate or a monoethylaminopropyl (meth)acrylate; acrylic acid, methacrylic acid, crotonic acid, An ethylenically saturated carboxylic acid such as maleic acid, itaconic acid or citraconic acid. These monomers may be used alone or in combination of two or more. The acryl-based polymer of the component (A) contains a carboxyl group-containing monomer, wherein the monomer composition ratio exceeds 0.5 mass. When the content of the monomer having a carboxyl group is more than 0.5% by mass, it can be sufficiently crosslinked by reacting with a crosslinking agent to be described later, and the durability is good. The content of the carboxyl group-containing monomer is preferably in the range of (5. 5 to 15% by mass, particularly preferably 1 to 10% by mass). The monomer having a carboxyl group in the invention is preferably (meth)acrylic acid. The (meth) acrylate-based copolymer used as the component (A) in the adhesive material is not particularly limited in its copolymerization form, and any of random, block, and graft copolymers is used. When the weight average molecular weight is 500,000 or more, the adhesion to the adherend and the adhesion durability are sufficiently sufficient, and floating, φ peeling, etc. do not occur, and adhesion and adhesion are considered. When the durability is equal, it is preferably a weight average molecular weight of 600,000 to 2.2 million, and particularly preferably 700,000 to 2,000,000. Further, the weight average molecular weight is determined by a gel permeation chromatography (GPC) method. The (meth) acrylate-based copolymer of the above-mentioned (A) component may be used singly or in combination of two or more kinds. The activity of the (B) component in the adhesive material is used. Energy line hardening compound, A polyfunctional (meth) acrylate monomer having a molecular weight of less than 1 000 is exemplified. -13- 200808930 The polyfunctional (meth) acrylate monomer having a molecular weight of less than 1 Å may, for example, be 1,4 - Butanediol (meth) acrylate, hydrazine, 6-hexanediol (meth) acrylate, neopentyl glycol (meth) acrylate, polyethylene glycol di(methyl) propyl acrylate, Neopentyl glycol adipate di(meth)acrylate, hydroxytrimethylacetic acid neopentyl glycol di(meth)acrylate, dicyclopentyl di(meth)acrylate, caprolactone modified Cyclopentenyl di(meth) acrylate, epoxy epoxide modified di(meth) acrylate, bis(acryloxyethyl) tripolyisocyanate, butylated cyclohexyl di(methyl) a bifunctional type such as a propyl acrylate or a 9,9-bis[4-(2-propancanyloxyethoxy)phenyl] hydrazine; a trimethylpropane tri(meth) acrylate; Pentaerythritol tri(meth) acrylate, propionic acid modified dipentaerythritol tri(meth) acrylate, pentaerythritol tri(meth) acrylate a trifunctional type such as propylene oxide modified trimethylolpropane tri(meth)acrylate or ginseng (propylene oxyethyl) tripolyisocyanate; dipropanetriol tetra(meth)acrylate, pentaerythritol IV 4-functional type such as (meth) acrylate; 5-functional type such as propionic acid-modified dipentaerythritol penta (meth) acrylate; dipentaerythritol hexa(meth) acrylate, caprolactone-modified dipentaerythritol hexa(methyl) In the present invention, the polyfunctional (meth)acrylate monomers may be used singly or in combination of two or more. However, among these, it is preferred to be in the skeleton. The structure includes a ring structure. The ring structure may be a carbocyclic structure or a heterocyclic structure, or may be a monocyclic structure or a ring structure. Such a polyfunctional (meth) acrylate system a monomer having a triisocyanate structure such as bis(propylene decyloxyethyl) tripolyisocyanate or ginsengyloxyethyl tripolyisocyanate; dimethylol dicyclopentane diacrylate, Ethylene oxide modified six Phthalic acid diacrylate-14 - 200808930 ester, tricyclooctyl dimethanol acrylate, neopentyl glycol modified trimethylolpropane diacrylate, adamantane diacrylate, 9,9 - double [4 -(2-propenyloxyethoxy)phenyl]anthracene or the like is suitable. Further, an active energy ray-curable acrylate-based low polymer can be used as the component (B). The acrylate-based low polymer is preferably a weight average molecular weight of not more than 50,000. Examples of such an acrylate-based low polymer include polyester acrylate type, epoxy acrylate type, urethane acrylate type, polyether acrylate type, polybutadiene acrylate type, and poly Oxygen _ acrylate system and the like. Here, the 'polyester acrylate-based oligomer can be esterified with (meth)acrylic acid by using a hydroxyl group of a polyester oligomer having a hydroxyl group at both ends obtained by condensation of a polyvalent carboxylic acid with a polyhydric alcohol. Alternatively, it can be obtained by esterifying a hydroxyl group at the terminal of the oligomer obtained by adding an alkylene oxide to a polyvalent carboxylic acid using (meth)acrylic acid. The epoxy acrylate-based low polymer can be esterified by, for example, reacting a relatively low molecular weight bisphenol type epoxy resin or a novolac type epoxy resin oxirane ring with (meth)acrylic acid. get. Further, a carboxyl group-modified epoxy acrylate oligomer having this epoxy acrylate-based low polymer modified with a part of a dicarboxylic acid anhydride can also be used. An urethane acrylate oligomer, for example, a polyurethane oligomer which can be obtained by reacting a polyether polyol or a polyester polyol with a polyisocyanate, and esterifying with (meth)acrylic acid The polyol acrylate oligomer can be obtained by esterifying a hydroxyl group of a polyether polyol with (meth)acrylic acid. The weight average molecular weight of the above acrylate-based low polymer is 换算, preferably -15 to 200808930 50,000 or less, more preferably 500 to 50,000, and particularly preferably 3,000, based on the standard polymethyl methacrylate measured by the GPC method. Choose from a range of ~40,000. These acrylate-based low polymers may be used alone or in combination of two or more. In the present invention, an addition acrylate polymer having a group having a (meth)acryl fluorenyl group introduced into a side chain can be used as the component (B). The (meth)acrylate ester described in the (meth)propionate-based copolymer of the component (A) is used in the addition of a propionate-based polymer, and has a crosslinkability in the molecule. The copolymer of the functional group monomer is obtained by reacting a (meth) acrylonitrile group and a compound having a group reactive with a crosslinkable functional group in a crosslinkable functional group of the copolymer. The weight average molecular weight of the addition acrylate polymer is usually from 500,000 to 2,000,000 in terms of polystyrene. In the present invention, as the component (B), one of the above-mentioned polyfunctional acrylate-based monomer, acrylate-based low polymer, and addition-accumulated acid ester-based polymer may be appropriately selected, and may be selected as the component. More than one species. In the present invention, the content ratio of the acrylic copolymer of the component (A) to the active energy ray-curable compound of the component (B) is preferably from the viewpoint of the performance of the obtained adhesive. 100: 1~100: 100, more preferably 100: 5~1 00: 50, especially good for 100: 10~100: 40 range. Further, in the case where the adhesive of the present invention contains the components (A) and (B), the storage elastic modulus (G') after the irradiation of the active energy ray satisfies the above conditions. Namely, the storage elastic modulus (G') at 23 ° C is 0.3 to 15 MPa, and more preferably, the storage elastic modulus (G') at 80 ° C is 0.3 to 10 MPa. The adhesive material may optionally contain a photopolymerization initiator. The photopolymerization agent-16-200808930 hair agent, for example, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin n-butyl ether, benzoate Isobutyl butyl ether, acetophenone, dimethylaminoacetophenone, 2,2-dimethoxy-2-phenylacetophenone, 2,2-diethoxy-2-phenylbenzene Ethyl ketone, 2-hydroxy-2-methyl-p-phenylpropane-1-ene, 1-cyclohexylcyclohexane, 2-methyl-1·[4·(methylthio)carbyl]-2 · porphyrin-propan-1-one, 4-(2-hydroxyethoxy)phenyl-2(hydroxy-2-propyl) ketone, diphenyl ketone, p-phenyldiphenyl ketone, 4,4 '-Diethylaminodiphenyl ketone, dichlorodiphenyl ketone, 2-methyl hydrazine, 2-ethyl hydrazine, 2-tert-butyl fluorene, 2-amino hydrazine, 2 -methylthioxanthone, 2-ethylthioxanthone, 2-chlorothioxanthone, 2,4-dimethylthioxanthone, 2,4-diethylthioxanthone, benzyldimethylcondensate Ketone, acetophenone dimethyl ketal, p-dimethylamino benzoate, oligo [2-yl-2-methyl-1[4-(1-methylvinyl)phenyl]acetone 〕, 2,4,6-trimethylbenzylidene-diphenyl-phosphine oxide, and the like. These may be used singly or in combination of two or more kinds, and the blending amount thereof is usually selected from 2 to 20 parts by mass based on 100 parts by mass of the above-mentioned (B) component. The scope. The adhesive material may contain, as the component (C), a crosslinking agent reactive with a functional group in the acrylic acid copolymer, as needed. The crosslinking agent is not particularly limited, and can be appropriately selected from any of those conventionally used as a crosslinking agent in a conventional acrylic pressure-sensitive adhesive. Examples of such a crosslinking agent include a polyisocyanate compound, an epoxy resin, a melamine resin, a urea resin, a dialdehyde, a methylol polymer, an anthranilyl compound, a metal compound, a metal alkoxide, and the like. A metal salt or the like, but a polyisocyanate compound is preferably used. Here, examples of the polyisocyanate compound include aliphatic polyisocyanate such as toluene diisocyanate, -17-200808930 diphenylmethane diisocyanate, xylylene diisocyanate, and the like, and an aliphatic polyisocyanate such as hexamethylene diisocyanate. And other alicyclic polyisocyanates such as ketone diisocyanate and hydrogenated diphenylmethane diisocyanate, and such biuret and tripolyisocyanate, and ethylene glycol, propylene glycol, and neopentyl glycol. An adduct of a reactant containing a low molecular weight active hydrogen compound such as trimethylolpropane or castor oil. In the present invention, the crosslinking agent may be used alone or in combination of two or more. In addition, the amount of the crosslinking agent is usually from 0.01 to 20 parts by mass, preferably from 0.1 to 10 parts by mass, per 100 parts by mass of the (meth) acrylate-based copolymer. The adhesive material may contain an organic decane coupling agent as the component (D) as needed. When the polarizing plate is bonded to, for example, a liquid crystal cell or the like by a mechanical decane coupling agent, the adhesion between the adhesive and the glass cell is further improved. The organic decane coupling agent is an organic ruthenium compound having at least one alkoxyalkyl group in the molecule, and is excellent in compatibility with an adhesive component and has light transparency. For example, it is preferably substantially transparent. The amount of the organic decane coupling agent to be added is preferably in the range of 0.001 to 10 parts by mass, particularly preferably in the range of 0.005 to 5 parts by mass, based on 1 part by mass of the adhesive material. Specific examples of the organic decane coupling agent include a fluorene compound containing a polymerizable unsaturated group such as vinyl trimethoxy decane, vinyl triethoxy decane or 3-methacryloxypropyltrimethoxy decane. An anthracene compound having an epoxy group structure such as 3-glycidoxypropyltrimethoxydecane or 2-(3,4-epoxycyclohexyl)ethyltrimethoxydecane, 3-aminopropyl group Trimethoxydecane, N-(2-aminoethyl)-3-aminopropyltrimethoxydecane, N--18-.200808930 (2-Aminoethyl)-3-aminopropyl A An amine group-containing oxime compound such as a dimethoxy decane or the like, 3-chloropropyltrimethoxydecane or the like. These may be used alone or in combination of two or more. The adhesive material may be added to the acrylic adhesive as various additives generally used, such as an adhesive, an antioxidant, an ultraviolet absorber, a light stabilizer, a softener, a mash, etc., as long as the object of the present invention is not impaired. The adhesive for an optical functional film of the present invention is obtained by irradiating the above-obtained adhesive material with an active energy ray. Examples of the active energy ray include ultraviolet rays, electron beams, and the like. The above ultraviolet rays may be a high pressure mercury lamp, an electrodeless lamp, a xenon lamp or the like. On the other hand, the electron beam is obtained by an electron beam accelerator or the like. Among the active energy rays, ultraviolet rays are particularly preferred. Further, when an electron beam is used, an adhesive can be formed without adding a photopolymerization initiator. The active energy ray irradiation amount of the adhesive material can be appropriately selected from the adhesive having the storage elastic modulus and the adhesion to the alkali-free glass and the polycarbonate. However, in the case of ultraviolet light, the illuminance is preferably 50. ~ 1000 mW/cm2, the amount of light is 50 to 1000 mJ/cm2, and in the case of an electron beam, it is preferably in the range of 10 to 1 0 0 krad. The adhesive for optical functional film of the present invention is suitable for a polarizing plate composed of a polarizing film alone, and the polarizing plate can be used, for example, to adhere to a liquid crystal cell, but is particularly suitable for integrating a polarizing film and a viewing angle. The polarizing plate is preferably formed by adhering the polarizing plate to, for example, a liquid crystal glass cell. The polarizing film of the above-mentioned polarizing film and the viewing angle expansion film is a polarizing film composed of a film of a cellulose triacetate (TAC) coated on both sides of a polyvinyl alcohol-based polarizer, for example. For example, the functional layer is formed by coating a disk-shaped liquid crystal to form a viewing angle, or the film is expanded by a bonding agent with an adhesive. In this case, the adhesive is provided on the side of the viewing angle expansion function layer or the viewing angle expansion film side. Further, as shown in Fig. 2, in the case where a retardation plate is provided between the polarizing plate and the liquid crystal glass cell, the adhesive for an optical functional film of the present invention can be suitably used. In other words, an optical film in which a polarizing plate and a phase difference plate which are separately formed of a polarizing film φ film are bonded together with the adhesive of the present invention, and a phase difference plate and a liquid crystal glass cell of the optical film are bonded with an adhesive. Here, the adhesive for bonding the phase difference plate and the liquid crystal glass cell is not particularly limited, and an adhesive generally used for bonding the polarizing plate and the liquid crystal glass cell can be used. Specifically, an adhesive composition composed of an acrylic copolymer, a crosslinking agent, and a decane compound disclosed in JP-A-11-103 3 03 can be listed. Further, the adhesive of the present invention can also be used for bonding the polarizing plate to the liquid crystal glass cell. The adhesive of the present invention preferably has a gel fraction of 85% or more. In other words, when the amount of low molecular weight components extracted in the φ organic solvent is small, floating, peeling, and contamination to the adherend are less in the environment under heating and warming, and the gel fraction is 85% or more. The durability and stability of the adhesive are high. The gel fraction is preferably from 90 to 99.9%. By using the adhesive for an optical functional film of the present invention, a liquid crystal display device produced by adhering a polarizing plate to a liquid crystal glass cell or a phase difference plate as described above does not cause light leakage in a wet environment of a canister temperature, and is polarized. The adhesion between the board and the liquid crystal glass cell is excellent. Further, the present invention provides an optical functional film with an adhesive, which is provided with a layer comprising the above-mentioned adhesive for optical functional film of the present invention on a polarizing plate, -20-200808930. The polarizing plate in the optical functional film may be a separate material of the polarizing film as described above. However, in the case of the configuration shown in Fig. 1, it is preferable that the polarizing film and the viewing angle expansion film are integrated. The thickness of the layer formed by the adhesive for the optical functional film is generally about 1 to 100/zm, preferably 1 to 50 #m, more preferably 2 to 30/zm. In the method for producing an optically functional film of an adhesive, the method may be a method in which a layer composed of the adhesive of the present invention is provided on an optical functional film such as a polarizing plate, and is not particularly limited, but the present invention is as follows. According to the method of the invention, the desired optical functional film with an adhesive can be produced with good efficiency. In the method of the present invention, after the optical functional film such as a polarizing plate is bonded to the adhesive layer provided on the release layer of the release sheet, the active energy ray is irradiated onto the adhesive material from the side of the release sheet. The optical functional film with an adhesive of the present invention can be obtained in the form of a layer composed of a layer of the adhesive of the present invention having the specific characteristics described above. The release sheet may be a polyester film such as polyethylene terephthalate, polybutylene terephthalate or polyethylene naphthalate; or a plastic film such as a polyolefin film such as polypropylene or polyethylene. A release agent such as a polyoxymethylene resin is applied to provide a release layer. The thickness of the release sheet is not particularly limited, but is generally about 20 to 1 500 / z m. Further, the irradiation conditions of the adhesive material and the active energy ray are similar to those described in the above-mentioned adhesive for optical functional film of the present invention. -21- .200808930 A method of providing an adhesive layer on a release sheet, which can be applied by, for example, a bar coating method, a knife coating method, a roll coating method, a flat coating method, a die coating method, a gravure coating method, or the like, to apply an adhesive material. A method of forming a coating film and drying it. The drying conditions are not particularly limited, but are generally in the range of 10 to 150 X: 10 seconds to 10 minutes. Further, in the case of the configuration shown in Fig. 2, the polarizing plate is formed of a single film alone, and the thickness of the layer formed of the adhesive for the optical functional film is the same as described above. The method for producing a polarizing plate with an adhesive attached to the configuration shown in the drawings may be a member provided with a layer composed of the φ adhesive of the present invention on the same polarizing plate as described above, but is not particularly limited. The above-described manufacturing method of the present invention can be efficiently produced. Further, in the case of the configuration shown in Fig. 2, an adhesive sheet composed of the above-mentioned adhesive for polarizing plates may be held adjacent to the peeling layer side of the two release sheets, and the polarizing plate may be attached by the adhesive sheet. And the phase difference plate. When the component (B) is used as the adhesive here, the active energy ray may be irradiated after the two release sheets hold the adhesive, or the adhesive may be provided on one of the release sheets, and the other energy may be applied after irradiation with the active energy ray. sheet. Further, the irradiation conditions of the active φ performance amount line are selected in accordance with the layer composed of the adhesive of the present invention having the specific characteristics described above. The optical functional film with an adhesive attached to the present invention has an adhesion to an alkali-free glass, and is 0.2N/25 mm or more after 24 hours after bonding; and preferably after bonding, after 40 days, it is 40N. /2 5 mm or more. When the adhesive force after the lapse of 24 hours is 0.2 N/25 mm or more, an optical functional film such as a polarizing plate can be bonded to, for example, a liquid crystal glass cell with sufficient adhesion. More preferably, the adhesion is 1.0 to 35 N/25 mm. Further, when the adhesive force after the lapse of 7 days is 40 N/2 5 mm or more, the above-mentioned bonding becomes stronger. More preferably -22-.200808930 Adhesive force is 45N/25mm or more. The upper limit of the adhesive force is not particularly limited, but the strength of the optical functional film is generally about 50 N/25 mm. Further, the method for measuring the above adhesive force is described in detail later. [Examples] The present invention will be described in more detail by way of examples, but the invention is not limited thereto. Further, the properties of the adhesives obtained in Examples 1 to 6 and Comparative Example 1 and the performance of the polarizing plate with an adhesive were obtained by the following methods. φ (1) Storage elastic modulus of the adhesive The storage elastic modulus at 23 ° C and 80 ° C was measured according to the method described in the specification. (2) Adhesion (adhesion to alkali-free glass) A sample of 25 mm width and 100 mm length was cut out from a polarizing plate with an adhesive, and the peeling sheet was peeled off (the thickness of the adhesive layer was 25 μm). After the alkali-free glass ("1737" manufactured by Corning Co., Ltd.), the pressure cooker manufactured by Kurihara Co., Ltd. was pressurized at 0.5 MPa, 50 ° C, and 20 minutes. Thereafter, after standing for 24 hours or 168 hours in an environment of 23 φ ° C and a relative humidity of 50%, a tensile tester (tensilon manufactured by Orieteck Co., Ltd.) was used in the same environment at a peeling speed of 300 mm/min and a peeling angle of 180°. Determine the adhesion. (3) Maximum shear load The maximum shear load up to 4000% deformation was obtained according to the method described in the specification. (4) Gel fraction The size of the adhesive is 25 m/z m and the size of 80 mm x 80 mm is measured by a precision balance weighing only the amount of the adhesive of the polyester mesh (screen size 200) of 23-200808930. The weight at this time is taken as Ml. The adhesive was impregnated with a Soxhlet (extractor) in an ethyl acetate solvent and refluxed for 16 hours. Thereafter, the adhesive was taken out, air-dried for 24 hours in an environment of a temperature of 23 ° C and a relative humidity of 50%, and further dried in an oven at 80 ° C for 1 2 hours. After drying, use a precision balance to weigh only the weight of the adhesive. The weight at this time is taken as M2. The gel fraction is expressed by (M2/M1) xlOO (%). (5) Durability of the polarizing plate with the adhesive The polarizing plate with the adhesive is adjusted to a size of 23 3mm x 309mm by a cutting device ("PN1-600" manufactured by Takino Seiki Co., Ltd.). After the alkali-free glass ("1737" manufactured by Corning Co., Ltd.), the pressure cooker manufactured by Kurihara Co., Ltd. was pressurized at 0.5 MPa, 50 ° C, and 20 minutes. Thereafter, the mixture was taken out after 200 hours in the following environment, and the lens was observed with a magnification of 10 at 23 ° C and a relative humidity of 50%, and the durability was evaluated by the following criteria. 〇: Among the four sides, there is no defect in the outer end of the 〇.6mm or more. △ : On one of the four sides, there is an abnormal appearance of the adhesive which is less than 0.1 mm from floating, peeling, foaming, and lines from the outer peripheral end portion of 0.6 mm or more. Any one of the sides of the x:4 side has an abnormal appearance of an adhesive having an appearance of 0.1 mm or more, such as floating, peeling, foaming, or line, from the outer peripheral end portion of 0.6 mm or more. <Endurance conditions> 60 ° C · Relative humidity 90% environment, 80 ° C, 90 ° C - 20 ° C, 60 ° C for 30 minutes each thermal shock test, 200 cycles (6) light leakage performance will be attached The polarizing agent has been adjusted to a size of 233 mm x 309 mm by a cutting device ("Wisconsin Manufacturing Co., Ltd." - 200808930 Super Cutting Machine "PN1-600"), and bonded to an alkali-free glass ("1737" manufactured by Corning Corporation). After that, the pressure cooker manufactured by Kurihara Co., Ltd. was pressurized at 0.5 MPa, 50 ° C, and 20 minutes. Further, the polarizing plate to which the adhesive is attached is attached to the surface of the alkali-free glass in such a manner that the polarization axis is in the Nikon orthogonal state. This state was placed at 80 ° C for 200 hours. Thereafter, the mixture was allowed to stand in an environment of 23 ° C and a relative humidity of 50% for 2 hours, and the light leakage property was evaluated by the following method in the same environment. Using the MCPD-2000 manufactured by Otsuka Electronics Co., Ltd., the brightness of each of the fields shown in Fig. 3 was measured, and the brightness difference "L*" was obtained as the light leakage property: ZIL* = [ (b+c+d+ e) /4] -a (However, a, b, c, d, and e are predetermined measurement points in the A field, B field, C field, D field, and E field, respectively (one position in the central part of each field) Brightness.). The smaller the L*値, the less the light leakage. (7) Durability of the optical film The optical film was adjusted to a size of 100 mm x 14 mm by a cutting device ("Super Pinch Machine" "PN1-600" manufactured by Takino Seiki Co., Ltd.), and the adhesive side of the phase difference plate was attached to a thickness of 700 vm. After the alkali glass ("1737" manufactured by Corning Co., Ltd.), the pressure cooker manufactured by Kurihara Co., Ltd. was pressurized at 0.5 MPa, 50 ° C, and 20 minutes. After that, the product was taken out in an environment of the following durability conditions for 200 hours, and the interface between the polarizing plate and the phase difference plate was observed with a magnification of 1 〇 in an environment of 23 ° C and a relative humidity of 50%, and the following criteria were used. Evaluation of durability. 〇: Among the four sides, the interface between the polarizing plate and the phase difference plate does not float or peel off. X: One of the four sides, the interface between the polarizing plate and the phase difference plate floats and peels off. <endurance condition> -25 - •200808930
60°C ·相對濕度90%環境、80°C、90°C -20 °C㈡60 °C之各30分的熱震盪試驗、200循環 實施例1〜9及比較例1、2 (1)附有黏著劑之偏光板之製作 調製表1所示組成之黏著性材料（a )，在作爲剝離片 之厚度38/zm的聚對苯二甲酸乙二酯製剝離薄膜〔琳得科 公司製「SP-PET3811」〕的剝離層上，以乾燥後之厚度爲 25//m的方式、用刀式塗覆機進行塗布後，在90°C進行乾 φ 燥處理1分鐘形成黏著性材料層。 黏著，將附有碟狀液晶層的偏光薄膜構成之偏光薄膜與 視野角擴大薄膜一體化的偏光板以黏著性材料層與碟狀液 晶層爲接合的方式來貼合。貼合30分鐘後，從剝離薄膜側 以下述之條件照射紫外線（UV )後，在23 °C、相對濕度50 %之環境下調理10日，而製作附有黏著劑之偏光板。黏著 劑層之厚度爲2 5 μ m。 < UV照射條件> •使用Fusion公司製無電極燈Η燈泡 ^ •照度 600mW/cm2、光量 150mJ/cm2 UV照度·光量計係使用Eye graphics公司製「UVPF-36」。 黏著劑的性能及附有黏著劑之偏光板的性能之評價結 果示於表2。 (2 )光學薄膜之製作 (附有黏著劑之偏光板之製作） 將表1表所示組成之黏著性材料在作爲剝離片之厚度3 8 β m的聚對苯二甲酸乙二酯製剝離薄膜〔琳得科公司製 「SP-PET3811」〕之剝離層上，以乾燥後之厚度成爲15 // m -26- 200808930 的方式、用刀式塗覆機進行塗布後，在9 〇它乾燥處理丨分 鐘而形成黏著性材料層。 黏者’將偏光薄膜構成之偏光板（厚度18〇μιη)與黏著 性材料層貼合’貼合3 0分鐘後，從剝離薄膜側用與上述條 件相同的紫外線進行照射後，以2 3 t、相對濕度5 〇 %之條 件調理1 0日’而製作附有黏著劑之偏光板。 (相位差板之黏著加工） 在作爲剝離片之厚度38//m的聚對苯二甲酸乙二酯製 剝離薄膜〔琳得科公司製「SP-PET38 1 1」〕之剝離層上， .以乾燥後之厚度成爲25 // m的方式、用刀式塗覆機塗布黏 著劑（b )後，用90°C乾燥處理1分鐘而形成黏著性材料層。 黏著劑（b )，係使用在丙烯酸丁酯與丙烯酸之比爲95/5 的基底材料100質量份中，摻合〇·3質量份的異氰酸酯系 交聯劑之三羥甲基丙烷改性甲苯二異氰酸酯（日本聚胺基 甲酸酯公司製「Kronate L」）、及0.3質量份的有機矽烷 偶合劑之3 -環氧丙氧基丙基三甲氧基矽烷（信越化學工業 公司製「KBM-403」）之黏著劑。 使用環狀烴薄膜（歐普地斯公司製「zeonoa ZF116」、 厚度1 00 // m )作爲位相差薄膜，將上述黏著性材料層貼合 於上後在23 °C、相對濕度50%之環境下調理10日。 (光學薄膜之製作） 將附有黏著劑之偏光板的剝離薄膜剝除，與已施行黏著 加工之相位差板的未進行黏著加工側貼合，而得光學薄膜。 光學薄膜之性、能的評價結果示於表3。 -27- 2(‘# ·60 ° C · Relative humidity 90% environment, 80 ° C, 90 ° C -20 ° C (two) 60 ° C each 30 minutes thermal shock test, 200 cycles Examples 1 to 9 and Comparative Examples 1, 2 (1) Preparation of a polarizing plate for an adhesive The adhesive material (a) having the composition shown in Table 1 was prepared, and a polyethylene terephthalate release film having a thickness of 38/zm as a release sheet was produced. The peeling layer of -PET3811"] was applied by a knife coater so as to have a thickness of 25/m after drying, and then dried at 90 ° C for 1 minute to form an adhesive material layer. The polarizing film formed by the polarizing film having the disk-shaped liquid crystal layer and the polarizing plate integrated with the viewing angle expansion film are bonded together by bonding the adhesive material layer and the disk-shaped liquid crystal layer. After bonding for 30 minutes, ultraviolet rays (UV) were irradiated from the peeling film side under the following conditions, and then conditioned for 10 days in an environment of 23 ° C and a relative humidity of 50% to prepare a polarizing plate with an adhesive. The thickness of the adhesive layer is 25 μm. <UV irradiation conditions> • An electrodeless lamp made of Fusion Co., Ltd. was used. • Illumination: 600 mW/cm2, light quantity: 150 mJ/cm2 The UV illuminance and the light quantity meter were "UVPF-36" manufactured by Eye Graphics. The results of the evaluation of the properties of the adhesive and the performance of the polarizing plate with the adhesive are shown in Table 2. (2) Production of optical film (manufacture of polarizing plate with adhesive) The adhesive material having the composition shown in Table 1 was peeled off from polyethylene terephthalate having a thickness of 3 8 β m as a release sheet. The peeling layer of the film ("SP-PET3811" manufactured by Linde Co., Ltd.) was coated with a knife coater so that the thickness after drying became 15 // m -26 - 200808930, and dried at 9 Torr. After a few minutes of treatment, a layer of adhesive material is formed. In the adhesive case, a polarizing plate (thickness 18 μm μη) composed of a polarizing film is bonded to the adhesive material layer for 30 minutes, and then irradiated with ultraviolet rays having the same conditions as above from the peeling film side, followed by 2 3 t A polarizing plate with an adhesive is prepared by conditioning the condition of a humidity of 5 〇% for 10 days. (Adhesive processing of a phase difference plate) On a release layer of a polyethylene terephthalate release film ("SP-PET 38 1 1" manufactured by Linde Co., Ltd.) having a thickness of 38/m as a release sheet. The adhesive (b) was applied by a knife coater so that the thickness after drying became 25 // m, and then dried at 90 ° C for 1 minute to form an adhesive material layer. The adhesive (b) is a trimethylolpropane-modified toluene which is blended with 3 parts by mass of an isocyanate crosslinking agent in an amount of 100 parts by mass of a base material having a ratio of butyl acrylate to acrylic acid of 95/5. Di-isocyanate ("Kronate L" manufactured by Nippon Polyurethane Co., Ltd.), and 3-glycidoxypropyltrimethoxydecane (manufactured by Shin-Etsu Chemical Co., Ltd.), 0.3 parts by mass of an organic decane coupling agent. Adhesive of 403"). A cyclic hydrocarbon film ("zeonoa ZF116" manufactured by Optus Co., Ltd., thickness: 100 // m) was used as a phase difference film, and the above-mentioned adhesive material layer was bonded to the upper surface at 23 ° C and a relative humidity of 50%. The next adjustment is 10 days. (Production of Optical Film) The release film of the polarizing plate with an adhesive was peeled off, and the film was bonded to the non-adhesive side of the phase difference plate subjected to the adhesion treatment to obtain an optical film. The evaluation results of the properties and energy of the optical film are shown in Table 3. -27- 2(‘# ·
Q 1 w 矽烷偶合劑(D) (質量份） eg d CM 〇 CM d CNJ d CM O’ CM d CM d CM 〇 CM O’ CM O’ CM d 交聯劑 (質量份） C2 價量份） ο 〇 o o 〇 0.01 0.01 0.01 0.01 〇 o C1 (質量份） CO d CO o' CO d in T— ID O’ CM d d CO o CO o CO 〇 CO o 光聚合引發劑 償量份） iq T— l〇 c\i in T— i〇 T—' o CO in r- iq iq T— c\i 〇 iq T— 活性能量線型化合物(B) 量 (質量份） in r— in CM in T— l〇 T- UO CD t— to t— m CM 〇 種類 M-315 R-684 A^BPFE 'M-315 M-315 M-315 M-315 M-315 R-684 1 M-315 丙烯酸聚合物(A) 量 (質量份） 100 100 | 100 100 100 100 100 100 o 100 100 驟 tlmfl P < < < < 5 < CO < < < 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 比較例1 比較例2 200808930 <丙烯酸系聚合物>1 A1:將丙烯酸丁酯與丙烯酸以質量比95: 5的比例來使 用’依照常法進行聚合而成，重量平均分子量180萬之共 聚物 A2 :將丙烯酸丁酯與丙烯酸以質量比96 : 4的比例來使 用’依照常法進行聚合而成，重量平均分子量180萬之共 聚物Q 1 w decane coupling agent (D) (mass parts) eg d CM 〇CM d CNJ d CM O' CM d CM d CM 〇CM O' CM O' CM d Crosslinking agent (parts by mass) C2 valence) ο 〇oo 〇0.01 0.01 0.01 0.01 〇o C1 (parts by mass) CO d CO o' CO d in T— ID O' CM dd CO o CO o CO 〇CO o Photopolymerization initiator reimbursement) iq T— l 〇c\i in T—i〇T—' o CO in r- iq iq T— c\i 〇iq T—active energy linear compound (B) amount (parts by mass) in r—in CM in T— l〇 T- UO CD t-to t- m CM 〇Type M-315 R-684 A^BPFE 'M-315 M-315 M-315 M-315 M-315 R-684 1 M-315 Acrylic Polymer (A Quantity (parts by mass) 100 100 | 100 100 100 100 100 100 o 100 100 Step tlmfl P <<< 5 < CO <<< 3 Example 1 Example 2 Example 3 Implementation Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Comparative Example 1 Comparative Example 2 200808930 <Acrylic polymer> 1 A1: A ratio of butyl acrylate to acrylic acid at a mass ratio of 95:5 It is polymerized according to the usual method and has a weight average molecular weight of 1.8 million. Copolymer A2: a copolymer of butyl acrylate and acrylic acid in a mass ratio of 96:4, which is polymerized according to a conventional method, and has a weight average molecular weight of 1.8 million.
A3 :將丙烯酸丁酯與丙烯酸以質量比98 ·· 2的比例來使 用，依照常法進行聚合而成，重量平均分子量180萬之共 聚物 A4 :將丙烯酸丁酯與丙烯酸以質量比99 : 1的比例來使 用，依照常法進行聚合而成，重量平均分子量1 50萬之共 聚物 <活性能量線硬化型化合物> M-3 15 :參（丙烯醯氧基乙基）三多異氰酸酯、分子量 二4 23、3官能型（東亞合成公司製、商品名「AronixM-315」） R-684 :三環辛基二甲醇丙烯酸酯（日本化藥公司製 「KAYARAD R-684」、分子量= 336) A-BREF : 9,9-雙〔4- ( 2-丙烯醯氧基乙氧基）苯基〕苐 (新中村化學公司製、分子量==546、2官能型） <交聯劑> C1 ··異氰酸酯系交聯劑〔三羥甲基丙烷改性甲苯二異氰 酸酯（日本聚胺基甲酸酯公司製「Kronate L」）〕 C2 :環氧基系交聯劑（三菱瓦斯化學公司製 「TETRAD-C」）〕 -29- 200808930 <有機矽烷偶合劑> 3-環氧丙氧基丙基三甲氧基矽烷（信越化學工業公司製 「KBM-403」） <光聚合引發劑> 二苯甲酮與1 -羥基環己基苯基酮之質量比爲1 : 1的混 合物、汽巴特化公司製「I r g a c u r e 5 0 0」A3: A copolymer of butyl acrylate and acrylic acid in a mass ratio of 98·· 2 and polymerized according to a conventional method, and having a weight average molecular weight of 1.8 million: a mass ratio of butyl acrylate to acrylic acid of 99:1 The ratio is used and polymerized according to a conventional method, a copolymer having a weight average molecular weight of 1.5 million < an active energy ray-curable compound> M-3 15 : ginseng (propylene oxyethyl) tripolyisocyanate, Molecular weight 2 4 23, trifunctional (manufactured by Toagosei Co., Ltd., trade name "Aronix M-315") R-684: Tricyclooctyl dimethanol acrylate (KAYARAD R-684, manufactured by Nippon Kayaku Co., Ltd., molecular weight = 336 A-BREF : 9,9-bis[4-(2-propenyloxyethoxy)phenyl]anthracene (manufactured by Shin-Nakamura Chemical Co., Ltd., molecular weight ==546, 2-functional type) <crosslinking agent> C1 · · Isocyanate crosslinking agent [trimethylolpropane modified toluene diisocyanate (Kronate L manufactured by Nippon Polyurethane Co., Ltd.)] C2 : Epoxy based crosslinking agent (Mitsubishi Gas Chemical Co., Ltd.) "TETRAD-C") -29- 200808930 <Organic decane coupling agent> 3-ring Propoxypropyltrimethoxydecane ("KBM-403" manufactured by Shin-Etsu Chemical Co., Ltd.) <Photopolymerization initiator> The mass ratio of benzophenone to 1-hydroxycyclohexyl phenyl ketone is 1:1. Mixture, "I rgacure 5 0 0" made by the company
-30- 2- ψ φ-30- 2- ψ φ
Q )3( η "ίσ ί _ 光漏性能 (zlL*) 0.65 1.00 0.75 0.77 0.50 0.67 0.78 0.87 0.69 6.50 0.88 耐久性 熱震盪 〇 〇 〇 〇 〇 〇 〇 〇 〇 X 90°C 乾燥 〇 〇 〇 〇 〇 〇 〇 〇 〇 X 〇 80°C 乾燥 〇 〇 〇 〇 〇 〇 〇 〇 〇 X 〇 60°C 90%RH 〇 〇 〇 〇 〇 〇 〇 〇 〇 <1 <] 凝膠分 率 (%) % σ> 〇5 Ο) 〇> LO CO 00 σ> 最大剪切 荷重 (N) § 100 105 % 105 00 108 σ> σ> CD ΙΟ CM 黏著力(N/25mm) 168hr 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < CO ο ιο 24hr GO CM 00 CM 1〇 CNJ 00 04 00 O ΙΟ CO 儲藏彈性模數 (MPa) 80°C 0.40 0.50 0.63 0.48 1.72 0.41 0.39 0.35 0.49 0.07 0.52 23〇C 0.89 1.45 1.20 0.85 10.1 0.88 0.80 0.72 1.30 0.15 1.20 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 比較例1 比較例2 •200808930 *:黏著力過大，黏著劑偏光板破斷。破斷時之黏著力 値爲50N/25mm，因此實際黏著力係超過50N/25mm。Q )3( η "ίσ ί _ Light leakage performance (zlL*) 0.65 1.00 0.75 0.77 0.50 0.67 0.78 0.87 0.69 6.50 0.88 Durability thermal shock 〇〇〇〇〇〇〇〇〇X 90°C Dry 〇〇〇〇 〇〇〇〇〇X 〇80°C Dry 〇〇〇〇〇〇〇〇〇X 〇60°C 90%RH 〇〇〇〇〇〇〇〇〇<1 <] Gel fraction (%) % σ> 〇5 Ο) 〇> LO CO 00 σ> Maximum shear load (N) § 100 105 % 105 00 108 σ>σ> CD ΙΟ CM adhesion (N/25mm) 168hr 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < CO ο ιο 24hr GO CM 00 CM 1〇CNJ 00 04 00 O ΙΟ CO Storage elastic modulus (MPa) 80°C 0.40 0.50 0.63 0.48 1.72 0.41 0.39 0.35 0.49 0.07 0.52 23〇C 0.89 1.45 1.20 0.85 10.1 0.88 0.80 0.72 1.30 0.15 1.20 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Comparative Example 1 Comparative Example 2 • 200808930 *: The adhesive force was too large, and the adhesive polarizing plate was broken. The adhesion at break is 50N/25mm, so the actual adhesion is more than 50N/25mm.
表3 光學薄膜性能 耐久性 60〇C、90娜 80〇C乾燥 90〇C乾燥 .熱震盪 實施例1 〇 〇 〇 〇 實施例2 〇 〇 〇 〇 實施例3 〇 〇 〇 〇 實施例4 〇 〇 〇 〇 實施例5 〇 〇 〇 〇 實施例6 〇 〇 〇 〇 實施例7 〇 〇 〇 〇 實施例8 〇 〇 〇 〇 實施例9 〇 〇 〇 〇 比較例1 〇 〇 X X 比較例2 X 〇 X X Φ 【産業上之可利用性】 本發明之光學機能性薄膜用黏著劑，其適用於偏光板、 尤其是與視野角擴大薄膜等一體化所構成之偏光板，或於 偏光板積層相位差板的情況，將該偏光板黏著於液晶胞或 相位差板可同時得良好的耐久性，具有所得到之液晶顯示 裝置在高溫高濕環境下不發生光漏等特性。 【圖式簡單說明】 第1圖係顯示LCD構成之槪略圖。 -32- •200808930 第2圖係顯示LCD構成之槪略圖。 第3圖係顯示以實施例、比較例所得到的附有黏著劑之 偏光板的光漏性評價方法之説明圖。 【主要元件符號說明】 11、21 12 ' Π 、 25 13、23 液晶顯示裝置 偏光板 黏著劑 玻璃（液晶胞）Table 3 Optical film performance durability 60 〇 C, 90 〇 80 〇 C drying 90 〇 C drying. Thermal shocking Example 1 〇〇〇〇 Example 2 〇〇〇〇 Example 3 〇〇〇〇 Example 4 〇〇 〇〇Example 5 〇〇〇〇Example 6 〇〇〇〇Example 7 〇〇〇〇Example 8 〇〇〇〇Example 9 〇〇〇〇Comparative Example 1 〇〇XX Comparative Example 2 X 〇XX Φ [Industrial Applicability] The optical functional film adhesive of the present invention is suitable for use in a polarizing plate, in particular, a polarizing plate formed by integrating with a viewing angle expansion film, or a polarizing plate laminated phase difference plate. In this case, the polarizing plate is adhered to the liquid crystal cell or the phase difference plate to obtain good durability at the same time, and the obtained liquid crystal display device does not exhibit light leakage or the like in a high temperature and high humidity environment. [Simple description of the drawing] Fig. 1 shows a schematic diagram of the LCD structure. -32- •200808930 Figure 2 shows a schematic diagram of the LCD structure. Fig. 3 is an explanatory view showing a method of evaluating the light leakage property of the polarizing plate with an adhesive obtained in the examples and the comparative examples. [Description of main component symbols] 11, 21 12 ' Π , 25 13 , 23 Liquid crystal display device Polarizing plate Adhesive glass (Liquid cell)
相位差板 ♦ -33-Phase difference plate ♦ -33-
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| JP2009244734A (en) * | 2008-03-31 | 2009-10-22 | Nippon Zeon Co Ltd | Optical member, luminance-improving film, manufacturing method, and liquid crystal display |
| JP2009242633A (en) * | 2008-03-31 | 2009-10-22 | Lintec Corp | Adhesive sheet for optical use, optical member with adhesive and its manufacturing method |
| JP5540394B2 (en) * | 2008-05-12 | 2014-07-02 | サイデン化学株式会社 | Adhesive composition for polarizing plate |
| JP2010026484A (en) * | 2008-06-20 | 2010-02-04 | Sumitomo Chemical Co Ltd | Polarizing plate for ips mode liquid crystal display device, and ips mode liquid crystal display device |
| JP5563411B2 (en) * | 2009-10-16 | 2014-07-30 | リンテック株式会社 | Adhesive composition, adhesive and optical film |
| JP5616652B2 (en) * | 2010-02-24 | 2014-10-29 | リンテック株式会社 | Adhesive composition and adhesive sheet |
| JP2011116816A (en) * | 2009-12-01 | 2011-06-16 | Lintec Corp | Pressure-sensitive adhesive material, pressure-sensitive adhesive, and pressure-sensitive adhesive sheet |
| JP5552338B2 (en) * | 2010-03-12 | 2014-07-16 | リンテック株式会社 | Adhesive composition, adhesive and adhesive sheet |
| KR20120036454A (en) * | 2010-10-08 | 2012-04-18 | 동우 화인켐 주식회사 | Adhesive composition, polarizing plate and liquid crystal display device comprising the same |
| JP5613535B2 (en) * | 2010-11-16 | 2014-10-22 | リンテック株式会社 | Active energy ray-curable pressure-sensitive adhesive composition, pressure-sensitive adhesive, pressure-sensitive adhesive sheet, and optical member with a pressure-sensitive adhesive layer |
| JP2013133370A (en) * | 2011-12-26 | 2013-07-08 | Toray Eng Co Ltd | Adhesive formed on release film |
| JP2014148624A (en) * | 2013-02-01 | 2014-08-21 | Nippon Zeon Co Ltd | Pressure-sensitive adhesive composition, pressure-sensitive adhesive sheet-like formed product, production methods therefor, and display device |
| JP6423581B2 (en) * | 2013-03-29 | 2018-11-14 | リンテック株式会社 | Manufacturing method of laminate |
| JP6100060B2 (en) * | 2013-03-29 | 2017-03-22 | リンテック株式会社 | Laminate |
| JP6325777B2 (en) * | 2013-06-28 | 2018-05-16 | リンテック株式会社 | Adhesive sheet and laminate |
| JP6114648B2 (en) * | 2013-06-28 | 2017-04-12 | リンテック株式会社 | Adhesive composition, adhesive and adhesive sheet |
| KR101840153B1 (en) * | 2013-11-26 | 2018-03-19 | 가부시끼가이샤 이테크 | Photocurable adhesive composition, adhesive sheet and laminate |
| JP6633308B2 (en) * | 2014-07-16 | 2020-01-22 | 日東電工株式会社 | Polarizing film and method for producing the same |
| CN109564315A (en) * | 2016-08-03 | 2019-04-02 | 住友化学株式会社 | Stacked film |
| KR20190035848A (en) * | 2016-08-03 | 2019-04-03 | 스미또모 가가꾸 가부시키가이샤 | Laminated film |
| JP7108505B2 (en) * | 2018-09-12 | 2022-07-28 | リンテック株式会社 | Machinability-enhancing film, laminate, and method of using machinability-enhancing film |
| TWI768213B (en) * | 2018-11-08 | 2022-06-21 | 日商拓自達電線股份有限公司 | Electromagnetic wave shielding film, method for producing electromagnetic wave shielding film, and method for producing shielded printed wiring board |
| CN115943332A (en) * | 2020-07-01 | 2023-04-07 | 日东电工株式会社 | Polarizing plate with retardation layer and adhesive layer, and image display device using same |
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| JP3410202B2 (en) * | 1993-04-28 | 2003-05-26 | 日本テキサス・インスツルメンツ株式会社 | Adhesive sheet for attaching wafer and method for manufacturing semiconductor device using the same |
| DE19520238C2 (en) * | 1995-06-02 | 1998-01-15 | Beiersdorf Ag | Self-adhesive tape |
| TW445289B (en) * | 1999-07-08 | 2001-07-11 | Somar Corp | Easily peelable adhesive film |
| KR100711423B1 (en) * | 2000-03-14 | 2007-05-02 | 린텍 가부시키가이샤 | Adhesive composition, adhesive sheet using the same and adhesive optical members |
| JP4823436B2 (en) * | 2001-05-29 | 2011-11-24 | リンテック株式会社 | UV-crosslinking pressure-sensitive adhesive composition, pressure-sensitive adhesive sheet, and method for producing pressure-sensitive adhesive sheet |
| JP4208187B2 (en) * | 2002-10-28 | 2009-01-14 | 日東電工株式会社 | Adhesive optical film, method for producing adhesive optical film, and image display device |
| JP4433145B2 (en) * | 2003-02-12 | 2010-03-17 | 日東電工株式会社 | Optical member pressure-sensitive adhesive composition, optical member pressure-sensitive adhesive layer, pressure-sensitive adhesive optical member, and image display device |
| JP4527417B2 (en) * | 2004-02-26 | 2010-08-18 | リンテック株式会社 | Pressure-sensitive adhesive composition, and pressure-sensitive adhesive sheet and pressure-sensitive optical member using the same |
| CN1260316C (en) * | 2004-03-11 | 2006-06-21 | 刘萍 | UV solidifying pressure sensitive coating capable of stripping and preparation process thereof |
| JP4750410B2 (en) * | 2004-12-17 | 2011-08-17 | 三菱樹脂株式会社 | Adhesive sheet for bonding optical members |
| JP5164339B2 (en) * | 2005-04-28 | 2013-03-21 | 日本合成化学工業株式会社 | Optical laminate with adhesive layer |
| KR100784995B1 (en) * | 2005-09-05 | 2007-12-11 | 주식회사 엘지화학 | Acrylic Pressure-Sensitive Adhesive Composition for the Polarizing Film |
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