TW201247419A - Polarizing plate - Google Patents

Abstract

This invention provides a polarizing plate having a polarizing film composed of polyvinyl alcoholic resin, and transparent resin films laminated on both surfaces of the polarizing film respectively via adhesive, wherein at least one of the transparent resin films is propylenic resin film containing nucleating agent in a range of from 50 to 6000 ppm. It is more advantageous to constitute one of the transparent resin films laminated on both surfaces of the polarizing film with propylenic resin film, and another one with norbornene type resin film.

Description

201247419 六、發明說明： 【發明所屬之技術領域】 的至少二：：：：一種聚乙烯醇系樹脂所構成的偏光膜 板。的面上積層㈣系樹脂薄膜作為保護膜之偏光 【先前技術】 液晶顯示裝置，你 腦等薄型顯示裝置之4= 了監視器、個人; 場顯著擴大，而且低，速擴大。特別是液晶電視的市 、波曰1§ — # 低成本化之要求非常高。液晶電視等的 成:層I被:用係前述偏光板作為構成構件，以既定的構 樹r所2 ’通“系由二色性色素吸附配向之聚乙烯醇系 保‘的偏光膜的單面或兩面’隔著接合劑層，積層 膜所槿赤。如一乙醯基纖維素為代表之乙酸纖維素系保護 液曰胎，^其依需㈣著其他光學膜，叫著劑貼合於 日曰’成為液晶顯示裳置的構成元件。 用親水性的保護膜時，在高溫多濕的條件下， ，a聚㈣醇祕脂所構成的偏細的水分量，作為偏光 右干變化’所以檢討取代親水性樹脂所構成的 可極力抑制環境的料之保瘦膜， 258588、A等）。之構成的偏先板（參考例如；rP 2〇〇9、 f方面’液晶顯示裝置中，有車用等使 胍·.！的情況’而且以電視、監視器等來 二境為高 324127 先的熱使構 201247419 成構件之偏光板變成南溫狀態’在如此的嚴苛狀^ 安定的功能，如JP 2009-258588-A所示的使用@ % $掠， 所構成的保護膜之偏光板期望成為更高性能的偏光板' 9 JP 2009-258588-A記載的偏光板，係偏光膜的、 置疏水性材料所構成的膜使使用環境對偏光膜的影響小配 但丙烯系樹脂所構成的保護膜’因丙烯系樹脂的^璃二’ 溫度低、為柔軟的材料，故在高溫下使用時，嗲乙烯醇= 樹脂所構成的偏光膜大為收縮時，會有抑制其吹縮之功& 些微不足，會有偏光板伴隨變形的課題。 本發明人等，考慮偏光板在高溫條件下等嚴苛的環境 下變形的原因，在於保護膜之丙烯系樹脂薄膜太柔軟= 了改良丙烯系樹脂薄膜在高溫下的剛性，以製作結晶成分 多之方法形成即可。但是，丙稀系樹脂薄膜以更:冷^ 的條件下製造的話’雖可提高結晶化度，但有損透明， 所以不理想。 本發明，係為了解決上述課題所成者，其目的為提供 具備維持透明性且提高剛性之丙烯系樹脂薄膜，在高溫條 件下等嚴苛的環境下伴隨的變形少之偏光板。η 【發明内容】 本發明包含下述。 [1] 一種偏歧，包絲W醇祕脂所構成的偏光膜以及 於其兩面分別隔著接合劑貼合之透明樹脂薄膜，其中前述 透明樹脂薄膜的至少一者為含有50 3啕ΰυ至600〇 ppm範圍的成 核劑之丙烯系樹脂薄膜。 324127 4 201247419 [2] 如[1]記載之偏光板’其中前述透明樹脂薄膜的一者為 含有50至6000 ppm範圍的成核劑之丙烯系樹脂薄膜，前 述透明樹脂薄臈的另一者為降莰烯（n〇rb〇rnene)系樹脂薄 膜。 [3] 如[1]或[2]記載之偏光板，其中前述聚丙烯系樹脂薄 膜’含有250至6000 ppm範圍的聚丙烯系樹脂薄膜之成核 劑。 [4] 如[1]或[2]記載之偏光板，其中前述聚丙烯系樹脂薄 膜’含有50至250 ppm範圍的聚丙烯系樹脂薄膜之成核劑。 [5] 如[1]至[4]中任一項記載之偏光板，其中前述成核劑為 下述構造式所示之環己烧_1，2_二羧酸鈣；201247419 VI. Description of the Invention: At least two of the technical fields of the invention:::: A polarizing film plate composed of a polyvinyl alcohol-based resin. On the surface of the laminate, the resin film is used as the polarizing film of the protective film. [Prior Art] In the liquid crystal display device, the thin display device such as your brain has a monitor and an individual. The field is significantly enlarged, and the speed is increased. In particular, the market for LCD TVs, the price of 曰 1 § — # low cost is very high. In the liquid crystal TV or the like, the layer I is used as a constituent member, and the polarizing film of the "polyvinyl alcohol-protected" which is adsorbed and aligned by the dichroic dye is formed by a predetermined structure. On the surface or on both sides, the laminated film is smeared by the layer of the bonding agent. For example, a cellulose acetate-based protective liquid abortion represented by acetamino cellulose, and (4) other optical films, called a coating agent The Japanese 曰 成为 becomes a constituent element of the liquid crystal display. When a hydrophilic protective film is used, under the condition of high temperature and humidity, the fine water content of a poly(tetra) alcohol secret fat is changed as a polarized right dry. Therefore, in the liquid crystal display device, the configuration of the thin film (258588, A, etc.) which is formed by replacing the hydrophilic resin with a material which can suppress the environment as much as possible is considered (refer to, for example, rP 2〇〇9, f aspect). In the case of the use of the car, etc., and the situation of the TV, the monitor, etc., the high temperature of 324,127, the heat of the structure, the structure of the polarizer of the building of the 201247419 component becomes the south temperature state. Features such as JP 2009-258588-A use @ % $ sweep The polarizing plate of the protective film is desired to be a polarizing plate of higher performance. The polarizing plate described in JP 2009-258588-A is a film made of a polarizing film and a hydrophobic material, which affects the use of the polarizing film. The protective film composed of a small amount of propylene-based resin is a soft material because the temperature of the propylene-based resin is low. Therefore, when it is used at a high temperature, the polarizing film composed of styrene-vinyl alcohol = resin is greatly shrunk. In the present invention, the inventors of the present invention consider the problem that the polarizing plate is deformed under a severe environment such as a high temperature condition, and the propylene is protected by a polarizing plate. The resin film is too soft = the rigidity of the propylene resin film is improved at a high temperature, and it can be formed by a method of producing a large amount of crystal components. However, if the acryl resin film is produced under conditions of coldness, it can be improved. The present invention has been made to provide a propylene-based resin film which maintains transparency and improves rigidity, and is not preferable. A polarizing plate having few deformations in a severe environment such as a high temperature condition. η SUMMARY OF THE INVENTION The present invention includes the following: [1] A polarizing film comprising a skeletal, wrapper, and two sides thereof A transparent resin film which is bonded to each other via a bonding agent, wherein at least one of the transparent resin films is a propylene-based resin film containing a nucleating agent in a range of from 50 3 to 600 〇 ppm. 324127 4 201247419 [2] 1] The polarizing plate described in which one of the transparent resin films is a propylene-based resin film containing a nucleating agent in a range of 50 to 6000 ppm, and the other of the transparent resin thinner is a norbornene (n〇rb〇) Rnene) is a resin film. [3] The polarizing plate according to [1] or [2] wherein the polypropylene resin film ' contains a nucleating agent of a polypropylene resin film in the range of 250 to 6000 ppm. [4] The polarizing plate according to [1] or [2] wherein the polypropylene resin film ' contains a nucleating agent for a polypropylene resin film in the range of 50 to 250 ppm. [5] The polarizing plate according to any one of [1] to [4] wherein the nucleating agent is a cyclohexanol-1,2-dicarboxylate represented by the following structural formula;

[6]如[1]至[4]中任一項記載之偏光板，其中前述成核劑為 ，N’ -三（2-曱基環己基）-丙烧 下述構造式所示之N，N， ，2, 3-三曱酿胺；[6] The polarizing plate according to any one of [1] to [4] wherein the nucleating agent is N'-tris(2-fluorenylcyclohexyl)-propanone. , N, , 2, 3-tritamine;

根據本發明，可得具備維持透明性且提高剛性之丙烯 324127 201247419 苛的環境下伴隨的變形少 系樹脂薄膜’在高溫條件下等嚴 之偏光板。 【實施方式】 (偏光膜） 本發明的偏光板所使用的偏光 伸的聚乙稀醇系樹脂薄膜，使二色性^體地為於一軸延 得。作為聚乙酸乙稀醋㈣脂;系樹脂息化而 合物《聚乙酸己歸醋外，例如乙峻酉夂乙烯醋的同元聚 之其他罝駚♦％乙烯酯以及可與其聚合 為可與乙酸乙_聚合之其他單體=乙焊醋共聚物等。作 ㈣類、乙稀_、不飽和續酸類、：：不飽繼類、 _等。 具有銨基之丙烯醯胺 聚乙烯醇系樹脂的皂化度， 較理想為98莫耳％以上。該些聚^為85至議莫耳％， 例如可使祕類改性之聚乙稀甲樹脂可為改性者’ 乙埽维酸、聚乙歸丁路等。而且1polyvinylf。酿1)、聚 度’通常為圆至1()_的範圍肉聚乙_系樹脂的聚合 的範園内。 国内’較理想為1500至5000 如此的聚乙埽醇系樹脂 料薄膜。聚乙歸醇系樹脂製、者，使用作為偏光膜的原 以傳统習知的適當方法製膜、、方法，無特別限制，例如 原科薄膜的厚度，無特別限制心⑽醇系樹脂所構成的 偏光膜，通常經過下逑沭例如為10至〗50# ra左右。 324127 ^騍而製造：將聚乙烯醇系樹 201247419 脂薄膜以二色性色素染色而吸附該二色性色素的步驟（染 色處理步驟）、吸附有二色性色素的聚乙烯醇系樹脂薄膜以 硼酸水溶液處理的步驟（硼酸處理步驟）以及藉由該硼酸水 溶液之處理後進行水洗的步驟（水洗處理步驟）。 而且，製造偏光膜時，通常聚乙烯醇系樹脂薄膜係以 —軸延伸，該一軸延伸，可在染色處理步驟前進行，可在 染色處理步驟中進行，亦可在染色處理步驟後進行。一軸 延伸在染色處理步驟之後進行時，言亥一軸延伸，可在蝴酸 處理步驟之前進行，亦可在硼酸處理步驟中進行。卷然， =些複數階段，皆可進行—軸延伸。—轴延伸，亦;^ 伸不同的滾輪進行i延伸，亦可使用熱滾輪進行一轴延 在=且’可在大氣巾進行延伸之乾式延伸，可以 下進行延仲之濕式延伸。延伸倍率通常為吏 :色處理步驟之聚乙稀醇系樹脂薄膜藉 例如將聚乙歸醇系樹 色二 &色素的水溶液中而進行。作@ & 3有—色 二色性染料等。於二色 例 色素使用峨、 氣、四偽翁莖几入此斤構成的一色性直接染料、三偶 乙埽醇系樹脂薄二接染料。再者，聚 較理想。 、處理别先實施對水的浸潰處理 化鉀的色性色素時’通常採用於含有碘及碘 ㈣水μ中錢聚乙烯料樹脂薄膜料色之方法。 201247419 該水溶液中之峨的含量，通常對水100重量份而言，為0.01 至1重量份，填化钟的含量，通常對水100重量份而言， 為0.5至20重量份。於使用碘作為二色性色素時，染色所 使用的水溶液之溫度，通常為20至40°C，再者，對該水 溶液之浸潰時間（染色時間），通常為20至1800秒。 另一方面，於使用二色性染料作為二色性色素時，通 常採用於含有水溶液二色性染料的水溶液中浸潰聚乙烯醇 系樹脂薄膜而染色之方法。該水溶液中之二色性染料的含 量，通常對水100重量份而言，為lxio'4至10重量份，較 理想為1χ10_3至1重量份，特別理想為lxio—3至1χ10_2重 量份。該水溶液，可含有硫酸鈉等的無機鹽作為染色助劑。 於使用二色性染料作為二色性色素時，染色所使用的染料 水溶液之溫度，通常為20至80°C，再者，對該水溶液之 浸潰時間（染色時間），通常為10至1800秒。 硼酸處理步驟，係藉由二色性色素染色之聚乙烯醇系 樹脂薄膜浸潰於含有硼酸的水溶液中而進行。含有硼酸的 水溶液中之蝴酸的量，對水100重量份而言，通常為2至 15重量份，較理想為5至12重量份。於上述染色處理步 驟中，使用碘作為二色性色素時，該硼酸處理步驟所使用 的含有硼酸的水溶液中，以含有碘化鉀較理想。於該情況， 含有删酸的水溶液之蛾化斜的量，對水100重量份而言， 通常為0.1至15重量份，較理想為5至12重量份。對含 有硼酸的水溶液之浸潰時間，通常為60至1200秒，較理 想為150至600秒，更理想為200至400秒。含有硼酸的 324127 201247419 水溶液的溫度，通常為50°C以上，較理想為50至85°C， 更理想為60至80°C。 接著，於水洗處理步驟，係將上述硼酸處理後的聚乙 烯醇系樹脂薄膜例如浸潰於水，進行水洗處理。水洗處理 之水的溫度，通常為5至4(TC，浸潰時間通常為1至120 秒。水洗處理後，通常施以乾燥處理，得到偏光膜。乾燥 處理’例如適合使用熱風乾燥機、遠紅外線加熱器等而進 行。乾燥處理的溫度，通常為3〇至l〇(rc以上，較理想為 50至80。(： °乾燥處理的時間，通常為6〇至6〇〇秒，較理 想為12&至600秒。 藉此’對聚乙烯醇系樹脂薄膜，實施一轴延伸、藉由 一色性色素之染色、硼酸處理及水洗處理，得到偏光膜。 該偏光膜的厚度，通常為5至40_的範圍内。本發明的 偏光板係於如此的偏光膜之兩面分別隔著接合劑貼合透 月秘月曰薄膜而製造’惟該些貼合於兩面之透明樹脂薄膜之 '者為以&有50至6000 ppm範圍的成核劑之丙稀 系樹脂4騎構㈣偏妹倾朗構成。 (保護膜） 於本發明，偏光膜的至少單面，貼合含有50至6000 PPm |&圍的成核劑之丙烯系樹脂薄膜，作為保護膜。成核 W的3 1為上述範圍時，丙稀系樹脂薄膜為了維持原本的 透月I·生提同剛性，藉由積層於偏光板的至少單面，使偏 光板在高溫條件下等的嚴苛的❹環境下成為變形少的良 好的偏光板。 324127 9 201247419 丙烯系樹脂，可為丙烯的同元聚合物，可為丙烯及可 與其共聚合之單體的共聚物。而且，亦可將該等併用。作 為可與丙烯共聚合之單體，例如乙烯、α-烯烴。α-烯烴 為碳數4以上，較理想為碳數4至12之α -烯烴。碳數4 至12之α-烯烴之具體例，例如1-丁稀、1-戊烯、卜己烯、 1-庚烯、1-辛烯、1-癸烯等直鏈狀單烯烴類；3-曱基-1-丁烯、3-甲基-1-戊烯、4-曱基-1-戊烯等分支狀單烯烴類； 乙烯基環己烷等。丙烯及可與其共聚合之其它單體的共聚 物，可為不規則共聚物，可為嵌段共聚物。 丙烯系樹脂為由前述共聚物所構成時，作為該共聚物 的具體例，例如丙烯-乙烯不規則共聚物、丙烯-1-丁烯不 規則共聚物以及丙烯-乙烯-1-丁烯不規則共聚物之丙烯與 選自前述乙烯以及碳數4至12之烯烴所成群之1種或 2種以上的單體之二元至三元的共聚物等。 丙烯系樹脂為前述共聚物所構成時，來自丙烯的構成 單元可根據耐熱性等特性選擇。高耐熱性為必要時，以包 含許多來自丙烯的構成單元較理想，具體地為96重量％以 上。再者，共聚合物中的該來自其他單體的構成單元的含 有率，根據「高分子分析手冊」（1995年、紀伊國屋書店 出版）之第616頁記載的方法，可藉由進行紅外線（IR)光譜 測定而求得。 而且，前述丙烯系同元聚合物以及丙烯系共聚物的立 體規則性，可為同排（丨5〇士80：1：1(：)、間規（5711(^〇13(：1；丨〇)、 無規（atactic)的任一種，從形成薄膜後的剛性、透明性的 324127 10 201247419 平衡良好之觀點，較理想為同排（iS0tactic)性高的丙烯系 聚合物。 於本發明，丙烯系樹脂，可為使用習知的聚合用觸媒 而聚合之聚合物或共聚物，作為聚合用觸媒，例如以下所 述。 (A) 鎂、鈦及鹵素為必須成分之固體觸媒成分所構成的 Ti-Mg系觸媒； (B) 於鎂、鈦及函素為必須成分之固體觸媒成分，組合 有機鋁化合物以及依需要之電子供給性化合物等的第三成 分之觸^系； (C) 茂金屬（metallocene)系觸媒等。 作為前述（A)的固體觸媒成分，例如开561-218606-A、JPS61-287904-A、JPH07-216017-A 等記載之觸媒系。 再者’作為前述（B)的觸媒系之有機鋁化合物的較佳例，例 如三乙基鋁、三異丁基鋁、三乙基鋁以及二乙基鋁氣化物 的混合物、四乙基二紹氧烧（a 1 umoxane)等，作為電子供給 性化合物的較佳例，例如環己基乙基二曱氧基矽烷、第3 丁基丙基二甲氧基矽烷、第3 丁基乙基二甲氧基矽烷、二 環戊基二甲氧基矽烷等。而且，作為前述（C)的茂金屬 (metallocene)觸媒’例如 JP2587251-B2、JP2627669-B2、 JP2668732-B2等記載之觸媒系。 丙烯系樹脂，例如可藉由使用如己烷、庚烧、辛烷、 癸烷、環己烷、甲基環己烷、苯、曱笨、二曱苯等烴化合 物為代表之不活性溶劑之溶液聚合法、使用液狀單體作為 324127 11 201247419 溶劑之塊狀聚合法、將氣體的單體直接聚合之氣相聚合法 等而製造。藉由該些方法之聚合，可以批次式進行，可以 連續式進行。 本發明所使用的丙烯系樹脂薄膜，可將上述丙稀系樹 脂藉由熔融擠出法擠出，成形為薄膜狀，於該情況，丙稀 系樹脂為根據Jis K7210，於溫度23(TC、負重21. 18N測 定之溶融指數（MFR)為1至30 g/l〇分鐘的範圍内較理想， 以1至20 g/ΙΟ分鐘的範圍内更理想，以1. 5至15 g/i〇 分鐘的範圍内更加理想。藉由使用MFR為該範圍内之丙稀 系樹脂，於藉由熔融擠出之薄膜成形，減低擠出機的負擔 且容易製造厚度均勻的薄膜。 於本發明，由以上說明的丙烯系樹脂中調配5〇至 6〇〇Oppm的比例之成核劑之樹脂組成物製膜為薄膜，將此 使用作為貼合於偏光膜的兩面之透明樹脂薄膜的至少一 者。此處，所謂ppm，係為重量基準。所謂成核劑，係指 丙烯系樹脂由熔融狀態固化而結晶化時，成為該結晶化的 核之化合物。如此，貼合有以既定比例調配成核劑之丙烯 系樹脂薄膳之偏光板，可成為維持透明性且特別是高溫下 的剛性提高者。成核劑的調配比例比50ppm低時，會有剛 性的提高效果之呈現不足，而且其比超過⑽⑽口卵時，製 成薄膜時會有引起狀態不良的情況。 所謂製膜時的不良情況，係指以熔融擠出法進行薄膜 成形時，從T型模頭擠出的丙歸系樹脂的熔融薄膜狀物， 接觸冷卻滚輪而冷卻固化，成為薄膜而捲繞時，此時例如 324127 201247419 成為下述的情況。亦即，其中之…係成核劑的量 結晶化速度變得太快，於接觸冷卻滚輪前，開始溶融薄膜 狀物的結晶化，變得無法均句地與冷卻滾輪密合，容易變 成表面粗糖的狀態之薄膜。另外之一，係從τ型模頭擠出 的熔融薄膜狀物，為了確保成形的安定性，端部會比寬度 :向^央部先經由靜電、空氣等制冷卻滾輪，於成核 Μ的量太多時，例如即使接網a 薄膜㈣則，沒有引起炼融 f膜狀物㈣晶化’姆㈣膜狀物，從接觸冷卻滾輪的 兩端部之瞬間即開始結晶化，只有薄膜的兩端部先引起體 =收縮，中央部受到應力的結果，只有巾央部對滚輪的 =狀態變差’容易損害薄膜的外觀。從該些觀點，成核 劑的添加量’係如上述而成為50至6000 _。 丙烯系樹脂的成核劑’有無機化合物及有機化合物。 作為無機㈣成核劑，以滑石為代表 :成核劑可分類為分散型以及溶解型。分散型的= 二在二融狀態的丙咖脂中也不溶解而分散於樹脂 ;V部過程成為結晶成長的起點。無機 分散型的成核劑。另-方面，炫融型的幻=， 2於炫雜態㈣烯系樹财，於冷卻過財，成核劑 ::融丙婦系樹脂内’製作藉由氫鍵之三維的網絡， 中的任意點作為妙，進行結晶成長。因此， 核=成=劑，主要以有機化合物所構成。關於㈣型的成 稍献述。分散型的成_，係如上述， 324127 融狀態的丙稀系樹脂中，於冷卻過程，因成為結=成長的 13 201247419 起點，其添加量係從50至6000 ppm的範圍適當選擇符含 各化合物的特性即可，依據添加量，因成核劑本身可造成 透過率的降低，較理想的添加量為5()至誦_。男〆 方面，於使用熔融型的成核劑時，因添加可形成網絡的量 即足夠，故其較理想的添加量為5〇至15〇〇酬。 於分散型的有機系成核劑，有單減金屬鹽系化合 物、二羧酸金屬鹽系化合物1_金屬鹽系化合物、松 Maosinester)金屬鹽系化合物等。作為職酸金屬鹽 系成核劑，例如安息香酸納。作為二㈣金屬鹽系成核劑， 例如具有下式⑴的構造之雙環[2. 2」]庚烧-2, 3-二㈣ 二納、具有下式⑵的構造之壤已m賴約。作為 雜醋金屬㈣成_，例如具有下式⑶的構造之[填酸 {2,2’ -亞甲基雙（4,6-二-第3 丁基苯基川鈉 。作為松香 醋金屬鹽系成核劑，例如具有下式⑷的構造之脫氫松脂酸 (dehydroabietic acid)鎮。 ONa ⑴ ^^C-ONa 324127 201247419According to the present invention, it is possible to obtain a propylene having a transparency and a high rigidity to maintain transparency. 324127 201247419 A resin film which is less deformed in a harsh environment is a polarizing plate which is excellent in high temperature conditions. [Embodiment] (Polarizing film) The polarizing polyethylene resin film used in the polarizing plate of the present invention has a dichroic property which is elongated on one axis. As polyacetic acid ethyl vinegar (tetra) vinegar; resin recombination compound "polyacetic acid has been added to vinegar, such as the other 罝駚 ♦ 乙烯 乙烯 乙烯 乙烯 乙烯 以及 酉夂 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及Acetic acid B_polymerization other monomer = Ethylene vinegar copolymer and the like. (4) Class, Ethyl _, Unsaturated Acid, :: Unsatisfactory, _, etc. The degree of saponification of the acrylamide-containing polyvinyl alcohol-based resin having an ammonium group is preferably 98 mol% or more. The poly-polymers are from 85 to about mol%. For example, the polyurethane-modified polyethylene resin can be a modifier, acetaminophen, polyethylidene, and the like. And 1polyvinylf. The brewing 1), the degree of aggregation 'is usually in the range of 1 to 10% of the range of the polymerization of the meat poly-based resin. Domestically, it is desirable to use a film of a polyvinyl alcohol-based resin material of 1,500 to 5,000. The method of forming a film and a method using a conventional method known as a polarizing film is not particularly limited. For example, the thickness of the original film is not particularly limited (10) by the alcohol resin. The polarizing film is usually passed through a chin, for example, from about 10 to about 50# ra. 324127 Manufactured by: a polyvinyl alcohol-based tree 201247419 lipid film dyed with a dichroic dye to adsorb the dichroic dye (dyeing step), and a polyvinyl alcohol-based resin film having a dichroic dye adsorbed thereon The step of treating the aqueous boric acid solution (the boric acid treatment step) and the step of washing with water after the treatment with the aqueous boric acid solution (water washing treatment step). Further, in the case of producing a polarizing film, the polyvinyl alcohol-based resin film is usually extended by a shaft, and the one-axis stretching may be performed before the dyeing step, and may be carried out in the dyeing step or after the dyeing step. When the one-axis extension is performed after the dyeing treatment step, the one-axis extension may be performed before the butterfly acid treatment step or in the boric acid treatment step. Rolling, = some complex stages, all can be done - axis extension. - shaft extension, also; ^ different rollers for i extension, can also use the hot roller for a shaft extension = and 'dry extension can be extended in the air towel, can be extended under the extension of the wet. The stretch ratio is usually 吏: The polyethylene resin film of the color treatment step is carried out, for example, by using an aqueous solution of polyethyl alcohol-based tree color & For @ & 3 with - color dichroic dyes. In the case of two-color pigments, a one-color direct dye consisting of sputum, gas, and four pseudo-stems is used, and a tri-butyl ethoxylate resin is used. Moreover, the gathering is ideal. In the case of the treatment of the impregnation of water, the coloring pigment of potassium is usually used in the method of containing the color of the polyethylene resin film in the iodine and iodine (iv) water. 201247419 The content of hydrazine in the aqueous solution is usually 0.01 to 1 part by weight based on 100 parts by weight of water, and the content of the filling bell is usually 0.5 to 20 parts by weight based on 100 parts by weight of water. When iodine is used as the dichroic dye, the temperature of the aqueous solution used for dyeing is usually 20 to 40 ° C, and the immersion time (dyeing time) of the aqueous solution is usually 20 to 1800 seconds. On the other hand, when a dichroic dye is used as the dichroic dye, a method of impregnating a polyvinyl alcohol-based resin film in an aqueous solution containing an aqueous dichroic dye is usually used for dyeing. The content of the dichroic dye in the aqueous solution is usually from 4 to 10 parts by weight, more preferably from 1 10 to 3 parts by weight, particularly preferably from 1 x 10 to 1 to 10 2 parts by weight, per 100 parts by weight of water. The aqueous solution may contain an inorganic salt such as sodium sulfate as a dyeing auxiliary. When a dichroic dye is used as the dichroic dye, the temperature of the dye aqueous solution used for dyeing is usually 20 to 80 ° C, and further, the impregnation time (dyeing time) of the aqueous solution is usually 10 to 1800. second. The boric acid treatment step is carried out by impregnating a polyvinyl alcohol-based resin film dyed with a dichroic dye in an aqueous solution containing boric acid. The amount of the custard acid in the aqueous solution containing boric acid is usually 2 to 15 parts by weight, preferably 5 to 12 parts by weight, per 100 parts by weight of water. In the dyeing treatment step, when iodine is used as the dichroic dye, it is preferred to contain potassium iodide in the aqueous solution containing boric acid used in the boric acid treatment step. In this case, the amount of mothing of the aqueous solution containing acid is usually 0.1 to 15 parts by weight, preferably 5 to 12 parts by weight, per 100 parts by weight of water. The impregnation time for an aqueous solution containing boric acid is usually 60 to 1200 seconds, preferably 150 to 600 seconds, more preferably 200 to 400 seconds. The temperature of the aqueous solution of 324127 201247419 containing boric acid is usually 50 ° C or more, preferably 50 to 85 ° C, more preferably 60 to 80 ° C. Then, in the water washing treatment step, the boric acid-treated polyvinyl alcohol resin film is, for example, impregnated with water and subjected to a water washing treatment. The temperature of the water to be washed is usually 5 to 4 (TC, and the impregnation time is usually 1 to 120 seconds. After the water washing treatment, it is usually subjected to a drying treatment to obtain a polarizing film. Drying treatment is suitable, for example, using a hot air dryer, far It is carried out by an infrared heater, etc. The temperature of the drying treatment is usually from 3 Torr to 1 Torr (r or more, preferably from 50 to 80. (: ° The drying treatment time is usually from 6 〇 to 6 〇〇 seconds, preferably. It is 12 & to 600 seconds. By this, the polyvinyl alcohol-based resin film is subjected to one-axis stretching, dyeing with a one-color dye, boric acid treatment, and water washing treatment to obtain a polarizing film. The thickness of the polarizing film is usually 5 In the range of 40 to 40. The polarizing plate of the present invention is formed by laminating a thin film of a transparent resin film bonded to both sides of the film on both sides of such a polarizing film via a bonding agent. It is composed of a propylene-based resin 4 having a nucleating agent in the range of 50 to 6000 ppm (4). (Protection film) In the present invention, at least one side of the polarizing film, the bonding contains 50 to 6000. PPm | & nucleating agent propylene resin thin When the film of the nucleation W is in the above range, the acryl-based resin film is laminated on at least one side of the polarizing plate to maintain the rigidity of the original permeable layer. A good polarizing plate with less deformation under high temperature conditions, etc. 324127 9 201247419 A propylene-based resin, which can be a propylene homopolymer, which can be a copolymer of propylene and a monomer copolymerizable therewith. Further, these may be used in combination as a monomer copolymerizable with propylene, for example, ethylene or an α-olefin. The α-olefin is a carbon number of 4 or more, and more preferably an α-olefin having a carbon number of 4 to 12. Specific examples of the α-olefin of 4 to 12, for example, linear monoolefins such as 1-butene, 1-pentene, hexene, 1-heptene, 1-octene, 1-decene; a branched monoolefin such as mercapto-1-butene, 3-methyl-1-pentene or 4-mercapto-1-pentene; vinylcyclohexane, etc. propylene and others copolymerizable therewith The copolymer of the monomer may be an irregular copolymer and may be a block copolymer. When the propylene resin is composed of the above copolymer, the copolymer is used as the copolymer. For example, propylene such as propylene-ethylene irregular copolymer, propylene-1-butene irregular copolymer, and propylene-ethylene-1-butene irregular copolymer and olefin selected from the foregoing ethylene and carbon number 4 to 12 A binary to ternary copolymer of one or two or more kinds of monomers, etc. When the propylene resin is composed of the above copolymer, the constituent unit derived from propylene can be selected according to characteristics such as heat resistance. If necessary, it is preferable to contain a plurality of constituent units derived from propylene, specifically, 96% by weight or more. Further, the content ratio of the constituent units derived from other monomers in the copolymer is according to the "Molecular Analysis Manual". The method described on page 616 of (1995, published by Kiyukiya Shoten) can be obtained by performing infrared (IR) spectroscopy. Further, the stereoregularity of the propylene-based homopolymer and the propylene-based copolymer may be the same row (丨5〇士80:1:1(:), syndiotactic (5711(^〇13(:1;丨) Any one of a) and atactic is preferably a propylene-based polymer having high iS0tacticity from the viewpoint of good balance between rigidity and transparency of 324127 10 201247419 after film formation. The propylene-based resin may be a polymer or a copolymer polymerized using a conventional polymerization catalyst, and is used as a catalyst for polymerization, for example, as follows: (A) A solid catalyst component in which magnesium, titanium, and halogen are essential components a Ti-Mg-based catalyst; (B) a solid catalyst component in which magnesium, titanium, and a functional component are essential components, and a combination of an organoaluminum compound and a third component such as an electron-donating compound as needed (C) Metallocene-based catalyst, etc. As the solid catalyst component of the above (A), for example, the catalyst system described in 561-218606-A, JPS61-287904-A, JPH07-216017-A, etc. Further, as a preferred example of the organoaluminum compound of the catalyst system of the above (B), A mixture of triethylaluminum, triisobutylaluminum, triethylaluminum, and diethylaluminum vapor, tetraethyl oxaxane, or the like, as a preferred example of the electron-donating compound, for example Cyclohexylethyldimethoxy decane, butyl butyl dimethoxy decane, butyl butyl dimethoxy decane, dicyclopentyl dimethoxy decane, etc. A metallocene catalyst of C), for example, a catalyst system described in JP2587251-B2, JP2627669-B2, JP2668732-B2, etc. A propylene-based resin, for example, by using, for example, hexane, heptane, octane, hydrazine a solution polymerization method in which a hydrocarbon compound such as alkane, cyclohexane, methylcyclohexane, benzene, hydrazine or diphenylbenzene is a representative inactive solvent, or a bulk polymerization method using a liquid monomer as a solvent of 324127 11 201247419, It is produced by a gas phase polymerization method in which a monomer of a gas is directly polymerized, etc. The polymerization by these methods can be carried out in batch form and can be carried out continuously. The propylene-based resin film used in the present invention can be a propylene-based resin. The resin is extruded by melt extrusion to form a film In this case, the acrylic resin is preferably in accordance with Jis K7210 at a temperature of 23 (TC, a load index (MFR) measured by a load of 21.18 N of 1 to 30 g/l 〇 minutes, with 1 to More preferably in the range of 20 g / ΙΟ min, more preferably in the range of 1.5 to 15 g / i 〇 minutes. By using MFR as the acryl resin in the range, by melt-extruded film Forming reduces the burden on the extruder and makes it easy to produce a film having a uniform thickness. In the present invention, a resin composition of a nucleating agent having a ratio of 5 〇 to 6 〇〇 Oppm is prepared as a film from the propylene-based resin described above, and this is used as a transparent resin film bonded to both surfaces of the polarizing film. At least one of them. Here, the ppm is based on the weight. The nucleating agent is a compound which becomes a nucleus of the crystallization when the propylene-based resin is crystallized by solidification in a molten state. In this way, a polarizing plate in which a propylene-based resin thinner having a nucleating agent is blended in a predetermined ratio is bonded, and the rigidity can be maintained, particularly at a high temperature. When the proportion of the nucleating agent is lower than 50 ppm, the effect of improving the rigidity is insufficient, and when the ratio exceeds (10) (10), the film may cause a state defect when the film is formed. The problem at the time of film formation refers to a molten film of a propylene-based resin extruded from a T-die when the film is formed by a melt extrusion method, and is cooled and solidified by contact with a cooling roller to form a film and wound. At this time, for example, 324127 201247419 becomes the following case. That is, the crystallization rate of the nucleating agent becomes too fast, and the crystallization of the molten film is started before the contact with the cooling roller, and it becomes impossible to uniformly adhere to the cooling roller and easily become a surface. A film of the state of raw sugar. The other one is a molten film which is extruded from a τ-type die. In order to ensure the stability of the molding, the end portion has a specific width: the cooling roller is made of static electricity, air, etc. to the central portion, and is nucleated. When the amount is too large, for example, even if the film a (4) is connected, the film of the refining film (4) is not crystallized, and the film is crystallized from the end of the contact roller, and only the film is formed. The two ends first cause the body to shrink, and the central portion is subjected to stress. As a result, only the central portion of the towel becomes poor in the state of the roller, which easily impairs the appearance of the film. From these viewpoints, the amount of the nucleating agent added is 50 to 6000 _ as described above. The nucleating agent of the propylene resin 'has an inorganic compound and an organic compound. As an inorganic (iv) nucleating agent, represented by talc: nucleating agents can be classified into a dispersed type and a dissolved type. The dispersed type = 2 is not dissolved in the acrylic resin in the second melt state and is dispersed in the resin; the V portion process becomes the starting point of crystal growth. Inorganic dispersed nucleating agent. On the other hand, the sleek and sleek type of illusion =, 2 in the dazzling state (four) ene-based tree wealth, in the cooling of the wealth, nucleating agent:: propylene-based resin in the 'making a three-dimensional network of hydrogen bonds, in Any point is wonderful, and crystal growth is carried out. Therefore, the core = formation agent is mainly composed of an organic compound. A brief description about the type of (4). The dispersion type _, as described above, in the 324127 fused acrylic resin, in the cooling process, because of the junction = growth of 13 201247419 starting point, the addition amount is from 50 to 6000 ppm, the appropriate selection includes each The characteristics of the compound may be, and depending on the amount of addition, the nucleating agent itself may cause a decrease in transmittance, and an ideal addition amount is 5 () to 诵_. In the case of male enamel, when a molten nucleating agent is used, it is sufficient to add a network-forming amount, so that it is preferably added in an amount of from 5 to 15%. The dispersible organic nucleating agent may be a single-reducing metal salt-based compound, a dicarboxylic acid metal salt-based compound 1_metal salt-based compound, or a pine-based metal salt-based compound. As an acid metal salt, it is a nucleating agent, such as sodium benzoate. As the bis(tetra)metal salt-based nucleating agent, for example, a bicyclo[2. 2]g-pyrene-2,3-di(di)di-nano having a structure of the following formula (1) and a structure having the structure of the following formula (2) have been used. As a miscellaneous metal (iv), for example, having the structure of the following formula (3) [filling acid {2,2'-methylenebis(4,6-di-butylidene sodium) as a rosin vinegar metal salt A nucleating agent such as a dehydroabietic acid town having the structure of the following formula (4) ONa (1) ^^C-ONa 324127 201247419

於熔融型的成核劑，有山梨醇（s〇rbit〇1)系化合物、 三醯胺系化合物等。作為山梨醇系成核劑，例如具有下 ?的構造之M)，3-0;2_0, 4♦雙(4—甲基亞节基 (benzylidene))-D_山梨醇、具有 3-0，·2—0, 4-0-雙(4-乙基亞加…广心之1 〇, 的構造之…-〇，}〇，：= 山梨醇以及具有下式⑻的構造’基亞〜基）+ (4-丙基亞节基)]-丙基I山梨醇。' 〇,2_〇,终雙 hoh2c (5) hoh2c (Θ) HSCHiC^%〇~c_ hoh2c H3 CH, 324127 15 (7) (8) 201247419 hoh2c H3C(H2C)2The nucleating agent of the molten type includes a sorbitol (s〇rbit〇1)-based compound, a trisamine-based compound, and the like. As a sorbitol-based nucleating agent, for example, M) having the following structure, 3-0; 2_0, 4♦ bis(4-methylbenzylidene)-D_sorbitol, having 3-0, · 2—0, 4-0- bis (4-ethyl yaga... 广心之1 〇, the structure of...-〇,}〇,:= sorbitol and the structure of the following formula (8) ) + (4-propylheptylidene)]-propyl I sorbitol. ' 〇, 2_〇, final double hoh2c (5) hoh2c (Θ) HSCHiC^%〇~c_ hoh2c H3 CH, 324127 15 (7) (8) 201247419 hoh2c H3C(H2C)2

(CH2)2CH3 h3c(h2c)2 再者，作為三醯胺系成核劑，例如具有下式（9)的構造 之N，N’，N” -三環己基-1，3,5-苯三曱醯胺以及具有下式 (10)的構造之Ν, Ν’，N” -三（2-甲基環己基）-丙烷-1，2, 3-三曱醯胺。(CH2)2CH3 h3c(h2c)2 Further, as a trisamine-based nucleating agent, for example, N,N',N"-tricyclohexyl-1,3,5-benzene having the structure of the following formula (9) Tridecylamine and hydrazine having the structure of the following formula (10), Ν', N"-tris(2-methylcyclohexyl)-propane-1,2,3-tridecylamine.

c=o I NH 上述例示的成核劑，可由日本（股）ADEKA、新日本理化 (股）、美國MILIKEN化學公司等製造商取得。該些成核劑 中，從透明性及剛性提高的效果良好的觀點，較理想為由 磷酸酯金屬鹽系化合物或羧酸金屬鹽系化合物所構成的分 散型有機系成核劑、山梨醇系化合物或三醯胺系化合物所 構成的熔融型成核劑。具體地，例如具有上述式（2)的構造 之環己烷-1，2-二羧酸鈣、具有上述式（8)的構造之1-0, 3-0 ; 2-0，4-0-雙（4-丙基亞苄基）-卜丙基-D-山梨醇以及 具有上述式（10)的構造之Ν，Ν’，Ν” -三（2-曱基環己基）- 324127 16 201247419 丙烧-1，2’3-三曱醯胺作為較理想之例。其中，具有上述式 ⑵的構造之環己m二$_以及具有上述式（1〇)的 構造之N，N，，r佛甲基環己基)m，2,3_三甲 醢月女’以y里的添加1 ’由於維持丙烯系樹脂薄膜的透明 性且提高剛性的效果高，為較理想的成核劑。 於丙稀系Ml以各種fcb例調配成核劑，進行實驗的 結果，發現以下的事實。首先，關於樹脂賴的透明性之 U曰心的霧度it纟檢討時，從丙稀系樹脂薄膜的全 部霧度降低的觀點，以成核劑的調配量為挪酬以上使 結晶粒小者較理想。此處’霧度係根據爪π· : 2論 「塑膠-透㈣料的霧度之求得方法」之規定，定義為（擴 散透過率/全光線透過率）χ1〇()(%)。 另方面即使降低丙歸系樹脂薄膜的全部霧度，將 其貼合於偏絲成為偏光板時，偏紐的透過率（單體透過 率）會變得容糾低。第1圖係包含後述實施例及比較例之 數據’將調配或不調配成核劑之丙料樹脂製膜所得的薄 膜之王部霧度（單位為/0作為橫軸，於聚乙歸醇系樹脂薄膜 使碘吸附配向，將其貼合於具有某種單體透-過率之偏光膜 而成為偏光板時之偏光板的單體透過率（單位為％)的降低 量作為縱軸，將其晝成圖形。此處，作為偏光板時之單體 透過率（°/0的降低量’係指偏光膜本身的單體透過率減去其 上貼有丙烯系樹脂薄膜成為偏光板時的單體透過率所得之 值。於後述實施例及比較例，於偏光膜一側的面，貼合丙 烯系樹脂薄膜，另一侧的面，貼合環烯烴系樹脂薄犋，製 324127 201247419 作偏光板，求得其單體透過率^第丨圖得知，丙婦 脂薄膜的全部霧度與偏光板的單體透過率（％) 乎不相關。 -里戍 =後，對於丙稀系樹脂薄膜的透明性，從其他觀點進 上述全部霧度，係讀因於存在薄膜内部之異物、 …曰粒界4之内部霧度以及起因於薄膜表面的凹凸等之外 部霧度（所謂表面霧度）之和而求得的值。内部霧产本身 示與其樹脂薄膜幾乎相同折射率之液:中，浸 散測定全光線透過率以及擴 過率dnY 内部霧度時的全光線透 率，件相=純。測“Μ度時的全光線透過 光線相表面幾乎無反㈣及擴散之狀態下的全 的全=第1圖為對象之薄膜的内部霧度測定時 板的單體透過率（單位〜麟隸*作、^ 1圖仙的偏光 形。師产,兄：: 為縱軸，將其晝成圖 與俨二ί 的偏光板的單體透過率的降低量 第2V橫::度測定時的全光線透過率(%)大致有關。於 線形近似式「二 為偏合一 部霧度在測定時的全光：率亦^ 射以及擴狀㈣下的全紐透料，卩乎=反 324127 201247419 具體地，該全光線透過率為98%以上，又99%以上，特別是 99.5%以上較理想。因此，同時發現成核劑的調配量以抑制 至50至250 ppm的低的範圍為有效。 藉由調配成核劑，促進固化丙烯系樹脂時的結晶化， 因擴散透過率變小，雖然全部霧度本身變小，因可發現某 種程度之起因於結晶粒界之内部霧度，測定内部霧度時， 亦即表面實質上無反射及擴散的狀態下之全光線透過率稍 有幾乎喪失的傾向。所以，結晶粒本身以不變小較理想。 為了添加成核劑於丙烯系樹脂作為丙烯系樹脂組成物 而製造薄膜時，例如可採用以下的方法。 (1) 預先製造對丙烯系樹脂100重量份而言含有1至 1 〇重量份的成核劑之樹脂組成物所構成的顆粒（有稱為 「成核劑母料顆粒」（master batch pel let)的情況）時， 將其與丙烯系樹脂顆粒熔融混合，使成核劑成為既定量， 製膜成為薄膜之方法； (2) 預先製造丙烯系樹脂中調配既定量的成核劑之丙 歸系樹脂組成物的顆粒時，將該顆粒熔融混練，製膜成為 薄膜之方法； (3) 丙烯系樹脂中調配既定量的成核劑的狀態下溶融 混練，製膜成為薄膜之方法。 該些之中，從所得的丙烯系樹脂薄膜的均勻性以及製 造成本的觀點，如（1)所述，預先製造成核劑母料顆粒，將 其與沒有調配成核劑之丙烯系樹脂顆粒熔融混練之方法 理想。 < 較 324127 19 201247419 上述（1)的方法之成核劑母料顆粒的製作，且上述 的方法之含有既定量的成核劑之丙烯系樹脂組成物的顆粒 的製作，雖可使用單軸或二軸擠出機，然從提高剪切速度 更均勻地分散成核劑於丙烯系樹脂中之觀點，以使用二軸 擠出機較理想。擠出時，擠出機的模頭（die)部分的丙烯系 樹脂的溫度以設定為180至26〇<t的範圍較理想。該溫度 超過260 C時，樹脂可能劣化。而且，於該溫度超過210 °C的情況，從抑制樹脂的劣化之觀點，期望添加酚系、磷 系=氧化劑。併用盼系抗氧化劑以及麟系抗氧化劑，因 可提阿抑制樹脂的劣化之效果而更理想。於調配抗氧化劑 時，該1對丙烯系樹脂100重量份而言為至2重量份為止 的程度就已足夠。 成核劑母料顆粒，已知添加於丙料樹脂。例如如 外線吸收劑、潤滑劑、抗靜電劑、抗結塊劑、防霧劑之 加劑’可在不阻礙本發明的效果之範圍下調配而作成混; 母枓顆粒（mixture master batch pellet)。再者，該些 別單獨與丙糊脂形成母料顆粒的形態； 於成為基體的丙烯系樹脂中。 ’ 本？所使用的含有既定量的成核劑之丙 炫融擠出法製造較理想，融擠出法為生產性佳 成本面佳之方法。該熔融擠出法， #， ”、、芝Mo至300°c的裎产. =二由擠出機的螺桿炫融混練，由T型模頭的狹： 擠出成薄片狀後，藉由各種切，接觸冷卻滾輪， 324127 20 201247419 而製造薄膜的方法。 以熔融擠出法製造丙稀系樹脂薄膜的情況，上述成核 劑為主的添加劑之母料顆粒，以擠出機熔融混練製造的情 況，單軸或二軸擠出機的進料斗及/或模頭出口附近為氮氣 封住，從保護丙烯系樹脂不氧化劣化之觀點較理想。而且， 熔融擠出或熔融混練之材料供應予擠出機前，氧氣濃度為 1體積％以下之氮氣為代表例之不活性氣體環境下保存，含 於材料中的氧氣分子以氮氣分子等不活性氣體取代，用以 抑制樹脂的劣化*大部分有效。 擠出機可為單轴撥出機，亦可為二軸擠出機。例如> 於使用單軸擠出機時，螺桿長度L與直徑D的比L/D為24 至36左右，樹脂供應部之螺紋槽的空間體積Vi以及樹脂 計量部之螺紋槽的空間體積V2的比（Vi/ V2)之壓縮比為1. 5 至4左右，可使用具有全螺紋（full flight)式、屏障 (barrier)式、再者馬得庫（Maddock)式的混練部分等形式 之螺桿。從抑制丙烯系樹脂的劣化、分解而均勻熔融混練 的觀點，以使用L/D為28至36、壓縮比Vi/ V2為2至3 之螺桿較理想。而且，為了抑制丙烯系樹脂的劣化、分解， 以進行氮氣沖洗等而逐出擠出機内的氧氣較理想。再者， 以於擠出機的前端設置直徑1至5 ιηπιφ之孔口（or if ice) 而提高擠出機的前端部分之樹脂壓力者較理想。藉由設置 孔口，提高擠出機的前端部分之樹脂壓力，係指提高該前 端部分的背壓，藉此有提高熔融混練的均勻性、提高擠出 安定性的情況。所使用的孔口的直徑，較理想為2至4πιπιφ。 324127 21 201247419c=o I NH The nucleating agent exemplified above can be obtained from manufacturers such as Japan ADEKA, New Japan Physicochemical Co., Ltd., and American MILIKEN Chemical Company. Among these nucleating agents, a dispersible organic nucleating agent or a sorbitol system composed of a phosphate metal salt compound or a carboxylic acid metal salt compound is preferred from the viewpoint of improving the transparency and rigidity. A molten nucleating agent composed of a compound or a triamine-based compound. Specifically, for example, calcium cyclohexane-1,2-dicarboxylate having the structure of the above formula (2), 1-0, 3-0; 2-0, 4-0 having the structure of the above formula (8); - bis(4-propylbenzylidene)-propylpropyl-D-sorbitol and the structure of the above formula (10), Ν', Ν"-tris(2-mercaptocyclohexyl)-324127 16 201247419 It is preferable to burn-1,2'3-tridecylamine, wherein the ring having the structure of the above formula (2) and the structure having the above formula (1) are N, N, and r.佛 甲基 环 ) ) , , , , 女 女 女 女 女 ' ' ' ' ' ' ' ' 添加 添加 添加 添加 添加 添加 添加 添加 添加 y y y y y y y y y y y y y y y y y y y y y y The rare M1 was prepared by nucleating agents in various fcb cases, and the following results were found. First, the haze of the U-heart of the transparency of the resin was evaluated from the entire propylene-based resin film. From the viewpoint of lowering the haze, it is preferable to make the crystal granule smaller than the amount of the nucleating agent. Here, the haze is based on the haze of the plastic-transparent (four) material according to the claw π· : 2 method The definition is defined as (expansion transmittance / total light transmittance) χ 1 〇 () (%). On the other hand, even if the total haze of the acrylic film is lowered, and the polarizing film is bonded to the polarizing plate, the transmittance (monomer transmittance) of the partial yoke becomes low. Fig. 1 is a graph showing the haze of a film obtained by forming a film of a propylene resin which is prepared or not formulated with a nucleating agent, in the data of the examples and comparative examples described later (unit: /0 as a horizontal axis, in polyethyl alcohol) In the resin film, the iodine is adsorbed and aligned, and the amount of decrease in the monomer transmittance (unit: %) of the polarizing plate when the polarizing film having a certain monomer permeability is used as a polarizing film is referred to as a vertical axis. Here, the single transmittance (°/0 reduction amount) when the polarizing plate is used refers to the monomer transmittance of the polarizing film itself minus the acryl resin film attached thereto as a polarizing plate. In the examples and comparative examples described later, the propylene-based resin film was bonded to the surface on the side of the polarizing film, and the surface of the other side was bonded with a cycloolefin-based resin. 324127 201247419 As a polarizing plate, the monomer transmittance is obtained. According to the figure, the total haze of the film of the film is not related to the monomer transmittance (%) of the polarizing plate. - 戍 = after, for acryl The transparency of the resin film, from the other viewpoints into the above all haze, read The value obtained by the internal haze of the inside of the film, the internal haze of the grain boundary 4, and the external haze (so-called surface haze) caused by the unevenness of the surface of the film, etc. The internal fog production itself is shown with the resin film. In the liquid of almost the same refractive index: the total light transmittance and the full light transmittance of the internal haze of the dnY in the immersion measurement are measured by the immersion, and the phase is pure. The total light passing through the ray phase is almost absent. In the reverse (four) and in the state of diffusion, all of the figures are shown in Fig. 1 . The single transmittance of the panel during the internal haze measurement of the film (units ~ lin Li *, ^ 1 仙 偏Brother:: is the vertical axis, and the amount of decrease in the transmittance of the polarizing plate of the second and second polarizers is roughly related to the total light transmittance (%) at the time of measurement: in the linear approximation "The second is the partial light of a haze in the measurement of the total light: the rate is also ^ and the expansion (4) under the full ray, almost = anti-324127 201247419 Specifically, the total light transmittance is 98% or more, More than 99%, especially 99.5% or more is ideal. Therefore, the nucleating agent is also found. The amount is suppressed to a low range of 50 to 250 ppm. The nucleating agent is used to promote crystallization during curing of the propylene-based resin, and the diffusion transmittance is small, and although the entire haze itself is small, it can be found. In some cases, the internal haze of the crystal grain boundary is measured, and when the internal haze is measured, that is, the total light transmittance in a state where the surface is substantially free of reflection and diffusion tends to be slightly lost. Therefore, the crystal grain itself is When a film is produced by adding a nucleating agent to a propylene resin as a propylene resin composition, for example, the following method can be employed. (1) Pre-manufacturing contains 1 to 100 parts by weight of the propylene resin. When granules composed of a resin composition of a nucleating agent of 1 part by weight (when referred to as "master batch pel let") are melt-mixed with propylene resin particles, The nucleating agent is a method for forming a film into a film, and (2) pre-manufacturing a granule of a propylene-based resin in which a nucleating agent of a nucleating agent is added, and granules are melt-kneaded. (3) A method in which a film is formed into a film; (3) A method in which a nucleating agent is mixed with a nucleating agent in a state of being mixed with a nucleating agent to form a film. Among these, from the viewpoint of the uniformity of the obtained propylene-based resin film and the production cost, as described in (1), the nucleating agent masterbatch particles are prepared in advance, and the propylene-based resin particles are not blended with the nucleating agent. The method of melt-kneading is ideal. < 324127 19 201247419 The preparation of the nucleating agent masterbatch pellet of the method of the above (1), and the preparation of the pellet of the propylene-based resin composition containing the quantitative nucleating agent of the above method, although a single axis can be used Or a two-axis extruder, from the viewpoint of increasing the shear rate to more uniformly disperse the nucleating agent in the propylene-based resin, it is preferred to use a two-axis extruder. At the time of extrusion, the temperature of the propylene-based resin in the die portion of the extruder is preferably in the range of 180 to 26 Å < t. When the temperature exceeds 260 C, the resin may deteriorate. Further, when the temperature exceeds 210 °C, it is desirable to add a phenol type or a phosphorus type to an oxidizing agent from the viewpoint of suppressing deterioration of the resin. It is more desirable to use an anti-oxidant and a lining antioxidant to suppress the deterioration of the resin. In the case of formulating the antioxidant, it is sufficient to the extent of 100 parts by weight of the propylene resin to 2 parts by weight. The nucleating agent masterbatch particles are known to be added to the propylene resin. For example, an additive such as an external absorbent, a lubricant, an antistatic agent, an anti-caking agent, and an anti-fogging agent can be blended to form a mixture without hindering the effects of the present invention; a mixture master batch pellet . Further, these are formed separately from the propyl bromide in the form of masterbatch particles; in the propylene-based resin to be a matrix. ‘ Ben? The use of a spheroidal melt extrusion method containing a quantitative nucleating agent is preferred, and the melt extrusion method is a method with good productivity and good cost. The melt extrusion method, #, 、, 芝Mo to 300 °c 裎 .. = two by the extruder screw smelting, by the narrowness of the T-die: after extrusion into a thin sheet, by Various methods of producing a film by contact with a cooling roller, 324127 20 201247419. In the case of producing an acrylic resin film by melt extrusion, the masterbatch particles of the above-mentioned nucleating agent-based additive are melt-kneaded by an extruder. In the case where the hopper and/or the outlet of the die of the uniaxial or biaxial extruder are sealed with nitrogen gas, it is preferable from the viewpoint of protecting the propylene resin from oxidative degradation. Moreover, the material supply by melt extrusion or melt kneading Before the extruder, the nitrogen gas having an oxygen concentration of 1% by volume or less is stored in an inert gas atmosphere as a representative example, and the oxygen molecules contained in the material are replaced with an inert gas such as nitrogen gas to suppress deterioration of the resin. Partially effective. The extruder can be a single-axis dispenser or a two-axis extruder. For example, when using a single-axis extruder, the ratio of the length L of the screw to the diameter D is 24 to 36. Left and right, the space body of the thread groove of the resin supply portion The compression ratio of the ratio Vi (V/V2) of the space volume V2 of the thread groove of the resin metering portion is about 1.5 to 4, and the full flight type, the barrier type, and the like can be used. A screw in the form of a mixed-type part of the Maddock type, from the viewpoint of suppressing deterioration and decomposition of the propylene-based resin and uniformly melting and kneading, using L/D of 28 to 36 and compression ratio Vi/V2 of 2 to 3 In order to suppress the deterioration and decomposition of the propylene resin, it is preferable to evacuate the oxygen in the extruder by nitrogen rinsing or the like. Further, a diameter of 1 to 5 ηηπι is provided at the front end of the extruder. It is preferable to increase the resin pressure at the front end portion of the extruder by the or if ice. By providing the orifice, the resin pressure of the front end portion of the extruder is increased, which means that the back pressure of the front end portion is increased. This improves the uniformity of the melt kneading and improves the stability of the extrusion. The diameter of the orifice to be used is preferably 2 to 4πιπι. 324127 21 201247419

ΐ型模頭的狹縫部之寬度方向 等儘可能㈣，平衡者較理想。而且，以樹脂 流速'壓力等儘可能认掛白The width direction of the slit portion of the 模-type die is as much as possible (4), and the balance is ideal. Moreover, the resin flow rate 'pressure, etc.

其流路為衣架形，使用設計 度方向，熔融丙烯系樹脂的 小的鍍敷面，或以如碳化鶴之堅硬材料熱喷塗者較理想。 再者’唇部分以具有研磨的表面粗難為Q ls以下之極平 之凹凸少的表面較理想，特別是唇前端為研磨i _ 二下的尖緣形狀者較理想。藉由使用具有如上述唇部之T 型模頭’可抑魏渣的產生’因可同時抑制模頭線（die line) ’而容易得到外觀均句性佳之樹脂薄膜。 再者從抑制丙烯系樹脂的擠出變化之觀點，擠出機 與T1L模頭之間，隔著轉接器（ada^沉）裝設齒輪泵（狀紅 pump)使壓力安定而供應樹脂予τ型模頭較理想。此時的 壓力，憂化值為1 MPa以内較理想。為了達成該變化值， 該齒輪泵以直接驅動型者較理想，以使用齒輪數為2個至 3個之削除為了傳送樹脂的相位之型的齒輪泵最理想。 再者’為了除去丙烯系樹脂中具有的異物，以設置葉 盤式過濾器（leaf disc filter)較理想。葉盤式過濾器的 片數與-片的過濾面積，可根據熔融丙烯系樹月旨的黏度與 擠出量（流量）以及樹脂的耐熱性而任意選擇^ g於過濾精 度，於本發明中使用作為保護膜的丙烯系樹脂薄膳時使 用異物的捕捉率為98%以上之異物大小為ΙΟ/iin以下的過 324127 22 201247419 濾器，因薄膜中的異物量可變少，可提高作為薄膜的品質， 所以較理想。以同樣的理由，過濾精度為5#m以下更理 想，又以3 以下最理想。而且，葉盤式過濾器的設置位 置，依照擠出機、齒輪泵、葉盤式過濾器、T型模頭的順 序設置者，從可安定地除去異物之觀點較理想。 從T型模頭擠出的熔融薄膜狀的丙烯系樹脂，接著接 觸金屬製的冷卻滚輪（亦有稱為冷硬（chi 11)滾輪或鑄造滾 輪），與冷卻滾輪密合而冷卻。此時，對冷卻滾輪之密合方 法，會有影響透明性的情形。對冷卻滾輪之密合，藉由例 如a)於熔融薄片狀的丙烯系樹脂賦予靜電，與表面狀態為 鏡面的冷卻滾輪密合而冷卻之方法；b)熔融薄片狀的丙烯 系樹脂夾壓於表面狀態為鏡面的冷卻滾輪與表面狀態為鏡 面的可彈性變形之金屬滾輪（亦稱為接觸滾輪）或金屬帶之 間，與冷卻滚輪密合而冷卻之方法；c)熔融薄片狀的丙烯 系樹脂接觸冷卻滚輪時，藉由從空氣腔吹出的空氣，與冷 卻滾輪密合而冷卻之方法等之習知的方法實施。 a)方式亦有稱為靜電針札（electrostatic pinning) 的方法，只有在從T型模頭擠出的熔融丙烯系樹脂的薄膜 狀物的兩端部（有稱為耳部），或前述薄膜狀物的寬度方向 的前面部，設置芯狀、線狀或帶狀的電源，使用高頻電源， 對熔融丙烯系樹脂賦予高電壓，使帶靜電，並使其接觸冷 卻滾輪，冷卻固化之方法。於該方式，從Τ型模頭的唇部 分至熔融丙烯系樹脂與冷卻滾輪相接為止的部分（稱為空 氣間隙）之薄膜不易安定，並可使不安定的空氣間隙的長度 324127 23 201247419 變短，因容易確保薄膜的均勻性，為較理想的方式。 a) 方式使用的冷卻滾輪，因冷卻滾輪的表面有轉印至 溥膜表面的傾向’滾輪的表面為表面粗糙度〇· 5s以下較理 想。而且，其表面材質為硬鉻鍍敷較理想，可為碳化鎢熱 喷塗等的導電材料，不通電之氧化鉻等熱喷塗表面較理想二 b) 方式為稱為接觸滾輪成形的方式，其係從τ型模頭 擠出的熔融丙烯系樹脂的薄膜狀物，藉由夾壓於冷卻滾輪與 可彈性變形之金屬滾輪或金屬帶之間，而與冷卻滾輪密合， 冷卻固化薄膜，可得到透明性佳之薄膜的方式。所謂可彈 性變形之金屬滾輪，係指具有厚度5mm以下的滾輪表面， 與冷卻滾輪之間夾壓熔融丙烯系樹脂時，不會製作樹脂積 存（也有稱為儲存（bank))之夾壓的金屬滾輪，所謂金屬帶 係指厚度lmm以下之金屬環形帶（endless belt),被 橡膠/袞輪或金屬滚輪支樓而移動，在與冷卻滾輪之間夾壓 熔融丙烯系樹脂的薄膜狀物。該方式，藉由冷卻條件使用 無知透明性的結晶性樹脂的情況等，從成形速度容易高速 化的觀點’為較理想的方式。 b)方式的任一種所使用的冷卻滚輪以及與其之間夾住 炼融薄片狀的丙烯系樹脂之可彈性變形之金屬滾輪或金屬 帶’因各個表面直接轉印至薄膜表面，因此各表面之表面 粗縫度以〇. 3S以下較理想。而且，因強力地夾壓，熔融丙 烯系刼脂的薄膜狀物，因情況而與冷卻滾輪，或與可彈性 變开/之金屬滾輪或金屬帶表面過於密合，而有難以脫離滚 輪之情形。從防止此狀況之觀點，作為覆蓋硬鉻鍍敷的表 324127 24 201247419 面之微龜裂之封孔處理，以使用石夕氧系材料、氣系材料， :且氧化鉻、碳化鎢等的熱喷塗表面或者其作為其封孔處理 ’表面較理想。 C)方式為稱為「空氣腔方式」之方式，從τ型模頭擠 出的溶融丙婦系樹脂的薄膜狀物接觸冷卻滾輪時，從與該 Τ部滾輪相反侧’躲融㈣系樹脂的薄膜狀物藉由從空 氣腔°人空氣，藉此，使熔融丙烯系樹脂的薄膜狀物與冷卻滾 輪禮合。空氣腔，可使用市售之適合者，而無特別限制，吹 出的二氡例如製造每境空間的空氣’以吹風機（bi〇wer) 等隔著高效率微粒空氣過濾器（HEPA filter ; high efficiency particulate air* filter)吸入，使空氣腔内 成為50至500 pa的加壓狀態較理想。空氣腔内的壓力為 該範圍時，因使加於過濾器的空氣壓力成為適度，故從τ 型模頭的唇部至熔融薄片狀的樹脂接觸冷卻滾輪為止的距 離（空氣間隙）’不會引起不穩定’可安定地製膜，當然薄 膜的厚度精度等的安定性也提高。由於該理由，空氣腔内 的麗力以成為1〇〇至4〇〇 Pa更理想。The flow path is in the shape of a hanger, and it is preferable to use a design direction, a small plating surface of a molten propylene resin, or a thermal spray material such as a carbonized crane. Further, it is preferable that the lip portion has a surface having a rough surface which is hard to be rough and has a very small unevenness of Q ls or less, and it is preferable that the tip end of the lip is a sharp edge shape of the polishing i _ . By using the T-die having the lip portion as described above, it is possible to suppress the generation of the slag, because the die line can be simultaneously suppressed, and the resin film having good appearance is easily obtained. Further, from the viewpoint of suppressing the extrusion change of the propylene resin, a gear pump (like red pump) is installed between the extruder and the T1L die via an adapter (a sinking) to stabilize the pressure and supply the resin. The τ type die is ideal. At this time, the pressure is less than 1 MPa. In order to achieve this change value, it is preferable that the gear pump is a direct drive type, and it is preferable to use a gear pump of a type in which the number of gears is 2 to 3 to remove the phase for conveying the resin. Further, in order to remove foreign matter contained in the propylene resin, it is preferable to provide a leaf disc filter. The number of the disc filter and the filtration area of the sheet can be arbitrarily selected according to the viscosity and the amount of extrusion (flow rate) of the molten propylene tree and the heat resistance of the resin, and in the present invention, When the propylene resin used as a protective film is used as a protective film, the foreign matter has a foreign matter content of 98% or more, and the foreign matter has a size of ΙΟ/iin or less. The 324127 22 201247419 filter has a small amount of foreign matter in the film, and can be improved as a film. Quality, so it is ideal. For the same reason, the filtration accuracy is 5#m or less, and the best is 3 or less. Further, the arrangement position of the leaf disc filter is preferably from the viewpoint of stably removing foreign matter in accordance with the order of the extruder, the gear pump, the leaf disc filter, and the T-die. The molten film-like propylene-based resin extruded from the T-die is then contacted with a metal cooling roller (also referred to as a chilled (chi 11) roller or a casting roller), and is cooled by adhesion to a cooling roller. At this time, the adhesion of the cooling roller may affect the transparency. For the adhesion of the cooling roller, for example, a) is applied to the molten flaky propylene resin to apply static electricity, and is adhered to the mirror surface cooling roller to be cooled, and b) the molten flaky propylene resin is pressed against The surface state is a method of cooling between a mirror-shaped cooling roller and a mirror-shaped elastically deformable metal roller (also called a contact roller) or a metal strip, and cooling with a cooling roller; c) melting flaky acrylic material When the resin contacts the cooling roller, it is carried out by a conventional method such as a method in which air blown from the air chamber is adhered to the cooling roller and cooled. The a) method also has a method called electrostatic pinning, and only the both ends (referred to as ear portions) of the film of the molten propylene resin extruded from the T-die, or the aforementioned film A method of providing a core, a linear or a strip-shaped power source in a front side in the width direction of the object, and applying a high voltage to the molten propylene resin to cause electrostatic charging and bringing it into contact with the cooling roller, and cooling and solidifying the method . In this manner, the film from the lip portion of the 模-type die to the portion where the molten propylene resin is in contact with the cooling roller (referred to as an air gap) is not easily stabilized, and the length of the unstable air gap can be changed to 324127 23 201247419. Short, because it is easy to ensure the uniformity of the film, it is an ideal way. a) The cooling roller used in the mode has a tendency to transfer to the surface of the enamel film on the surface of the cooling roller. The surface of the roller is preferably 5 Å or less. Moreover, the surface material is preferably hard chrome plating, and can be a conductive material such as tungsten carbide thermal spraying, and a thermal spraying surface such as chrome oxide which is not energized is preferable. b) The method is called contact roller forming. The film material of the molten propylene resin extruded from the τ-type die is sealed between the cooling roller and the elastically deformable metal roller or the metal strip to be in close contact with the cooling roller to cool the cured film. A way of obtaining a film having good transparency is obtained. The elastically deformable metal roller refers to a surface of a roller having a thickness of 5 mm or less, and when a molten propylene-based resin is sandwiched between the cooling roller, a metal which is not deposited by a resin (also referred to as a bank) is not produced. The roller, the metal belt, refers to a metal endless belt having a thickness of 1 mm or less, which is moved by a rubber/xenon wheel or a metal roller branch, and a film of molten propylene resin is sandwiched between the cooling roller and the cooling roller. In this embodiment, it is preferable to use a crystalline resin having an opaque transparency by cooling conditions, etc., from the viewpoint that the molding speed is likely to be high. b) The cooling roller used in any of the modes and the elastically deformable metal roller or metal strip sandwiching the propylene-based resin in the form of a smelting sheet are directly transferred to the surface of the film by the respective surfaces, and thus the surfaces are The rough surface degree is preferably 〇. 3S or less. Further, due to the strong pinching, the film of the molten propylene-based blush is excessively adhered to the surface of the cooling roller or the metal roller or the metal strip which is elastically deformable, and it is difficult to separate from the roller. . From the viewpoint of preventing this, the sealing treatment of the micro cracks on the surface of the table 324127 24 201247419 covering the hard chrome plating is performed using the heat of the cerium oxide material, the gas-based material, and the like, and the heat of chromium oxide or tungsten carbide. Spraying the surface or treating it as its sealing surface is ideal. The method of C) is called "air cavity mode". When the film of the molten silicone resin extruded from the τ-type die contacts the cooling roller, the resin is impregnated from the opposite side of the roller. The film is made to pass from the air chamber to the human air, whereby the film of the molten propylene resin is brought into engagement with the cooling roller. For the air chamber, a commercially available person can be used without any particular limitation. The blown air, for example, the air in each space, is separated by a high efficiency particulate air filter (HEPA filter; high efficiency). Particulate air* filter) Inhalation makes it ideal for a pressurized state of 50 to 500 Pa in the air chamber. When the pressure in the air chamber is within this range, the air pressure applied to the filter is moderate, so the distance (air gap) from the lip of the τ-type die to the contact of the molten sheet-like resin with the cooling roller is not The instability is caused, and the film can be stably formed. Of course, the stability of the thickness of the film and the like are also improved. For this reason, the Lili in the air chamber is more preferably 1 〇〇 to 4 〇〇 Pa.

c)方式的冷卻滾輪，其表面狀態雖有轉印至丙烯系樹 月曰薄膜的傾向，不到上述a)方式或b)方式的程度，而且使 用鏡面狀態的冷卻滾輪時，捲入熔融丙烯系樹脂的薄膜狀 物與冷卻滾輪之間的空氣，變得沒有出處，而難以均勻成 形。所以，於C)方式的情況，冷卻滚輪係使用〇. 6至4S 左右的表面粗糙度者。從提高薄膜表面的岣勻性的觀點， 以〇. 8至2S左右較理想。 324127 25 201247419 弋之冷卻滾輪的表面溫度，例如調整為30 至120°C的範圍較理想。今、m 片狀丙稀系樹脂，頭擠出時的溶融薄 , 奴具有〇.5至2.Gmm左右的厚度，在 與冷部滾輪接。為止之間（空氣間隙），慢慢延伸 連接冷卻錄後，“冷卻，同_伸為既 發明所使用的丙烯系樹參絲灰丄l 个 ί月曰雖添加成核劑，但認為藉此 認為熔融薄片狀之丙烁备似， 碲系樹月曰因結晶化速度變快，使冷卻 滾輪的表面溫度不是最搞人 玻適0，例如溫度太低的情況，與冷 卻滾輪接合時，因引起*私别丄 7 崾太激,、、1的結晶化，使熔融薄片狀之 丙稀系樹脂的延伸變得不充分。另外，於溫度太高的情況， 因丙婦系_科相化故無法麟冷卻滾輪，而直接捲 繞，或脫離時導致變形笙尤^ 夂小4不理想的現象。因隨添加的成核 劑之種類及添加量，⑸工速度、冷卻滾輪的大小等而異， 無法-概而論’為了避免上述問題，最適合的冷卻滚輪的 表面溫度以選擇在40至i〇〇°c之間較理想。 製造丙稀系樹脂薄膜時的加工速度，為10至l〇0m/分 鐘左右。加工速度太快時，從冷卻不均的觀點，會有透明 性惡化的傾向。作為透明性指標而採用根據JIS K7136測 定之全部霧度值時’該全部霧度值以10%以下較理想，6% 以下更理想。另一方面，作為透明性指標而採用前述之根 據JIS Κ7136測定之内部霧度測定時的全光線透過率，亦 即薄膜表面實質上無反射及擴散的狀態下之全光線透過率 時’該全光線透過率為98%以上較理想，更理想為99%以 上，特別理想為99. 5%以上。對本發明規定的丙稀系樹脂 324127 26 201247419 薄膜’以採用後者的薄膜表面實質上無反射及擴散的狀態 下之全光線透過率較理想。該全光線透過率太小時，組聲 於液晶電視時，可能引起免度的降低。 本發明的偏光板之丙烯系樹脂薄膜，其厚度為5至2〇〇 左右較理想。更理想為i〇ym以上，且i5〇^m以下 本發明所使用的丙烯系樹脂薄膜，在無損本發明的效 果之範圍，可實施電暈處理、電漿處理等表面處理。而且， 可以塗佈等手法於表面設置抗反射層、硬塗層等。 (降莰烯（norbornene)系樹脂薄膜） 本發明的偏光板’係於上述偏光膜的貼合丙稀系樹脂 薄膜的相反側的面，也貼合透明樹脂薄膜。作為如此的貼 σ於與貼合丙烯系樹脂薄膜的相反侧的面之透明樹^薄 膜’以面内之相位差及厚度方向的相位差分別為特定範圍 内之降莰烯系樹脂薄膜所構成的相位差薄膜較理想。此處 所謂降莰烯系樹脂薄膜’例如具有降莰烯、多環降茨稀系 單體等的環狀烯烴（環烯烴）所構成的單體單元的熱塑性樹 脂所構成的薄膜。降莰烯系樹脂薄膜，除了可使用前述環 烯烴的開環聚合物、2種以上的環烯烴之開環共聚物之氫 化物以外，可為環烯烴與環狀烯烴、具有乙烯基的芳香族 化合物等的加成共聚物。而且，可導入極性基。 於使用環烯烴與鏈狀烯烴或具有乙烯基的芳香族化合 物之共聚物時，作為鏈狀烯烴，例如乙烯、丙烯等，而且 作為具有乙烯基的芳香族化合物，例如苯乙稀、α_甲基苯 乙烯、核烷基取代之苯乙烯等。於如此的共聚物，由環烯 324127 27 201247419 = 成的單體單元可* 5〇莫耳％以下（較理想為Μ至肋 :特別是於環稀烴、鏈狀烯烴及具有乙烯基的芳香 ^化°物之三元共聚物時’由環稀烴所構成的單體單元可 為比上述少的量。於如此的三元絲物，由鏈狀稀烴所構 成的單體單it，通常為5至別莫耳％，由具有乙稀基的芳 香族=合物所構成的單體單元，通常為5至80莫耳％。 1衣烯烴系樹脂，可使用適合的市售品，例如T〇pAs (Topas Advanced Polymers GmbH 製）、ARTONCJSR(股）製）、 ZEONOR(日本 ZE0N(股）製）、ΖΕ〇ΝΕχ(日本 ze〇n(股）製）、 APEL(三井化學（股）製）等。如此的環稀煙系樹脂製成薄膜 時，適合使用溶劑鑄膜法、熔融擠出法等習知的方法。而 且，可使用例如ESSINAC積水化學工業（股）製）、SCA4〇(積 水化學工業（股）製）、ZE0N0R膜（日本ZE0N(股）製）、arton 膜（JSR(股）製）等預先製膜的環烯烴系樹脂製薄膜的市售 品，作為透明保護膜。 降莰烯系樹脂薄膜，至少於一方向延伸而賦予相位 差，可對液晶面板光學補償及/或視角擴大有貢獻。從如此 的觀點，該降莰烯系樹脂薄膜係以面内相位差值匕為4〇 至100 nm，又於40至80 nm的範圍内，且厚度方向相位 差值Rth為80至250 nm，又於1〇〇至250 nm的範圍内者 較理想。雙折射性薄膜的面内相位差值及厚度方向相位 差值Rth，以其薄膜面之慢軸（si〇w axis)方向的折射率為 ih、在面内與慢軸正父之方向（快轴（fast ax is)方向）的折 射率為ny、厚度方向的折射率為nz，薄膜的厚度為d，由 324127 28 201247419 下式分別定義。 R〇=(nx-ny)xd »The cooling roller of the c) type has a tendency to be transferred to the propylene-based sapphire film in a surface state, and is less than the above-mentioned a) mode or b) mode, and is entangled with molten propylene when a mirror-state cooling roller is used. The air between the resin-formed film and the cooling roller becomes no source and is difficult to form uniformly. Therefore, in the case of the C) method, the cooling roller is used with a surface roughness of about 6 to 4 seconds. From the viewpoint of improving the uniformity of the surface of the film, it is preferably about 8 to 2 seconds. 324127 25 201247419 The surface temperature of the cooling roller, for example, is preferably adjusted to a range of 30 to 120 °C. Today, the m-plate propylene-based resin is thinly melted when the head is extruded, and the slave has a thickness of about 5 to 2. Gmm and is connected to the cold roller. Between the time (air gap), slowly extending the connection to the cooling record, "cooling, the same as the propylene-based ginseng silk ash used in the invention, although adding a nucleating agent, but It is considered that the flaky flaky shape is similar, and the crystallization rate of the lanthanum tree is faster because the crystallization speed is faster, so that the surface temperature of the cooling roller is not the most suitable for the glass, for example, when the temperature is too low, when the cooling roller is joined, The crystallization of the molten sheet-like acryl-based resin is insufficient, and the temperature of the molten sheet-like acryl-based resin is insufficient. Therefore, it is impossible to cool the roller, but when it is wound directly, or when it is detached, it causes deformation, which is not ideal. Due to the type and amount of nucleating agent added, (5) the speed of the work, the size of the cooling roller, etc. In order to avoid the above problems, the surface temperature of the most suitable cooling roller is preferably between 40 and i 〇〇 ° c. The processing speed when manufacturing the acryl resin film is 10 to L〇0m/min. When the processing speed is too fast, When the total haze value measured according to JIS K7136 is used as the transparency index, the total haze value is preferably 10% or less, more preferably 6% or less. On the other hand, as the transparency index, the total light transmittance in the internal haze measurement measured according to JIS Κ 7136, that is, the total light transmittance in a state where the film surface is substantially free from reflection and diffusion, is used. The transmittance is preferably 98% or more, more preferably 99% or more, and particularly preferably 99.5% or more. The propylene resin 324127 26 201247419 which is prescribed by the present invention has substantially no reflection and diffusion on the surface of the film. The total light transmittance is preferably in the state of the whole light, and the total light transmittance is too small, and the group sounds on the liquid crystal television may cause a decrease in the degree of freedom. The acrylic resin film of the polarizing plate of the present invention has a thickness of 5 to 2 It is preferable that it is about 〇ym or more, and it is preferable that the propylene-type resin film used by this invention below i5〇m is below the range of the effect of this invention, and can implement. Surface treatment such as halo treatment, plasma treatment, etc. Further, an antireflection layer, a hard coat layer, or the like may be provided on the surface by coating or the like. (norbornene-based resin film) The polarizing plate of the present invention is attached to the above polarized light. The transparent resin film is also bonded to the surface of the film which is bonded to the opposite side of the acrylic resin film. The transparent resin film which is attached to the surface opposite to the surface of the acryl-based resin film is in-plane. The retardation film in the phase difference and the thickness direction is preferably a retardation film composed of a decene-based resin film in a specific range. Here, the decene-based resin film is, for example, a decene-reducing film or a polycyclic condensate. A film composed of a thermoplastic resin of a monomer unit composed of a cyclic olefin (cycloolefin) such as a monomer. The norbornene-based resin film may be a ring-opening polymer of the above-mentioned cycloolefin or two or more kinds of rings. In addition to the hydride of the olefin ring-opening copolymer, it may be an addition copolymer of a cyclic olefin, a cyclic olefin, an aromatic compound having a vinyl group, or the like. Moreover, a polar group can be introduced. When a copolymer of a cyclic olefin and a chain olefin or an aromatic compound having a vinyl group is used, it is a chain olefin such as ethylene, propylene or the like, and as an aromatic compound having a vinyl group, such as styrene, α-A Styrene, styrene substituted by a core alkyl group, and the like. In such a copolymer, the monomer unit formed by cycloolefin 324127 27 201247419 can be *5 〇 mol% or less (preferably Μ to rib: especially ring-dense, chain olefin, and aromatic having a vinyl group) When the terpolymer of the compound is used, the monomer unit composed of the ring-dilute hydrocarbon may be less than the above. In the case of such a ternary filament, the monomer composed of the chain-like hydrocarbon is single it, The monomer unit consisting of an aromatic compound having a vinyl group is usually 5 to 80 mol%, and usually 5 to 80% by mole. 1 olefin-based resin, a suitable commercial product can be used. For example, T〇pAs (manufactured by Topas Advanced Polymers GmbH), ARTONCJSR (manufactured by the company), ZEONOR (made by Japan ZE0N), ΖΕ〇ΝΕχ (made by Japan ze〇n), APEL (Mitsui Chemical Co., Ltd.) System) and so on. When such a ring-thin-type resin is used as a film, a conventional method such as a solvent casting method or a melt extrusion method is suitably used. Further, for example, it can be preliminarily prepared by using, for example, ESSINAC Sekisui Chemical Co., Ltd., SCA4〇 (made by Sekisui Chemical Industry Co., Ltd.), ZE0N0R film (made by Japan ZE0N Co., Ltd.), arton film (made by JSR). A commercially available product of a film of a cycloolefin-based resin of a film is used as a transparent protective film. The decene-based resin film is stretched in at least one direction to impart a phase difference, and contributes to optical compensation and/or viewing angle expansion of the liquid crystal panel. From such a viewpoint, the decene-based resin film has an in-plane phase difference 匕 of 4 〇 to 100 nm and a range of 40 to 80 nm, and a thickness direction phase difference Rth of 80 to 250 nm. It is also ideal in the range of 1 〇〇 to 250 nm. The in-plane phase difference value and the thickness direction phase difference value Rth of the birefringent film are in the direction of the slow axis (si〇w axis) of the film surface, ih, in the direction of the in-plane and the slow-axis positive parent (fast The refractive index of the axis (fast ax is) is ny, the refractive index in the thickness direction is nz, and the thickness of the film is d, which is defined by the following formula by 324127 28 201247419. R〇=(nx-ny)xd »

Rth=[(nx+ny)/2-nz]xd 面内相位差值R。未達40 nm時，或超過100 nm時， 面板的視角補償能力有降低的傾向。而且，厚度方向相位 差值Rth未達80 nm時，或超過250 nm時，面板的視角補 償能力仍有降低的傾向、再者，上述面内相位差值及厚 度方向相位差值Rth ’例如可使用KOBRA 21ADH(王子計測 機器（股）製）測定。 為了得到具有如上述折射率特性之降莰烯系樹脂薄膜， 除了適當調整延伸倍率及延伸速度以外，可適當選擇延伸 時之預熱溫度、延伸溫度、加熱設定溫度、冷卻溫度等各 種溫度以及其變化模式即可。藉由以較緩和的條件進行延 伸’可得如此的折射率特性，例如延伸倍率為1. 05至1. 6 倍的範圍較理想，又1· 1至1.5倍更理想。於二軸延伸時， 最大延伸方向的延伸倍率為前述範圍即可。 本發明所使用的施以延伸之降莰烯系樹脂薄膜，對其厚 度無特別限制’以在20至δΟβιη的範圍較理想，在40至 80//m的範圍更理想。降莰烯系樹脂薄膜的厚度未達2〇#爪 時/專臈使用困難，且有既定的相位差值變的難以呈現之 傾向，另一方面，降莰烯系樹脂薄膜的厚度超過8〇以瓜時， 有加工性變差，且透明性降低，所得的偏光板的重量變大 等之虞。 (接合劑） 324127 29 201247419 本發明的偏光板，係於 劑，分別貼合聚丙稀系樹脂薄膜=的兩面，隔著接合 樹脂薄膜。本發明的偏 、及例如上述的降获稀系 脂薄臈，分別使用同種的接广：:偏光膜的兩面之樹 合劑。從接合劑層變薄的觀點，作吏用不同種的接 如水系接合劑，亦即接合 乂理4的接合劑’例 者。而且，從接合強度的觀點，=解於水者或分散於水 如本身藉由光而硬化之光硬化性接=理想的接合劑，例 陽離如光硬化性環氧樹脂以及光 f收劑之丙烯系樹脂薄膜的組合，在接合強声的點最理 想。該光硬化性接合強度的點最理 性能量線的光源，益特财V 性能量線而硬化。活 1線較理想’以具體地以低壓水銀燈、中 且问壓水銀燈、超高壓水銀燈、化學燈、$色燈、 微波激發水銀燈、金屬_素物料較理想。… 作為於偏光膜貼合上述透明樹脂薄膜的方法 ，通常可 為一般習知者，例如藉由繞線棒塗佈(Myer bar coat)法、 凹版塗佈法、缺角輪塗佈（C()mina c〇at)法、刮刀塗佈（d〇ct〇r blade)法、狹縫塗佈（die c〇at)法、浸塗（dip c〇at)法、 喷霧法等’於偏光膜及/或貼合於其上之薄膜的接合面塗佈 接合劑並使兩者重疊之方法。於上述塗佈方法中，塗佈骐 的厚度精度、塗佈厚度、設備尺寸等的觀點，較理想為凹 版塗佈法或狹縫塗佈法，從同樣的觀點更理想為凹版塗佈 324127 30 201247419 法二所'胃凹版塗佈法，係指考慮塗佈量’使用所選擇的凹 版^輪之塗佈法’相對塗佈的薄膜的流動方向，於相反方 向方疋轉之凹版滾輪圍繞的位置，設置腔體，於腔體内供應 =體的方式而塗佈之方法°塗佈接合劑後’偏光膜與其接 &quot;專膜藉由失持滾輪（nip roll)等夾住而貼合。 7且，於偏光膜及/或透明樹脂薄膜的接合劑塗佈面， 為了提高接合性，可適當實施電漿處理、電暈處理、紫外 線照射處理、火焰（flame)處理、4化處理等的表面處理。 作為皂化處理，例如浸潰於如氫氧化鈉、氫氧化鉀等驗性 水溶液之方法。 於偏光膜的兩面，分別隔著接合劑層，使透明樹脂薄 膜積層後，於使用水系接合劑時，施以加熱處理並使其乾 燥。加熱處理，例如藉由喷吹熱風而進行，其溫度通常為 40至100°C的範圍内，較理想為60至100°C的範圍内。而 且’乾燥時間通常為20至1200秒《於該情況，接合劑層 的厚度可為O.lym以下。 另一方面，於使用光硬化性接合劑時’藉由照射活性 月b量線使該接合劑硬化，而接合偏光膜與兩面的透明樹脂 薄膜。於該情況，接合劑層的厚度，通常為0.5至， 較理想為1至4 // m，更理想為1 · 5至4 // m。接合劑層的厚 度未達〇.5//m時，有接合不充分之虞，而且接合劑層的厚 度超過5em時，有產生偏光板的外觀不良之虞。 (黏著劑） 本發明的偏光板，亦可具有積層於透明樹脂薄膜的至 324127 31 201247419 顧1 ΐ之黏著劑層。該黏著劑層，於偏光板應用於液晶 膜時’例如可適合使用於與液晶胞之貼合。當偏光 系樹脂=合至_G ppm的範圍之成核劑的丙稀 黏著劑於另一面貼合降获歸系樹脂薄膜時，通常 使用傳系樹脂薄膜上。於黏著劑層，可 :μ曰系黏者劑、錢樹月旨 從透明性、黏著力、信賴性、重工（考财其中， 使用丙歸酸系黏著劑較理想。黏著劑層^性4的觀點， 含點著劑的溶液，⑽縫塗、=可藉由將包 获，薄膜上，使其乾燥之方法塗佈於降 以離型處理之塑膠膜(稱為離型薄膜)上;^置外:可於施 印至降莰烯系樹脂薄膜之方法而設：：者劑層轉 -般在2至4。心的範圍内較理想。點者劑層的厚度， (液晶顯示裝置） 本發明的偏光板，可適合應用㈣ 晶顯示裝置，本發明的偏光板係隔著 ^裝置。於液 配4於液晶面板的背面侧。此時，本發明：層:較理想為 烯系樹脂薄膜形成在遠離液晶胞之側、=光板’其丙 置。如此的液晶顯示裝置，因使用本發明=、背光對向配 久性佳的同時，顯示功能的安定性也隹，=光板’故耐 除上述特徵以外的部分，可採用傳统習知&amp;、、39&lt;4不艘置， 之適當的構成，液晶顯示裝置可適當=晶顯示裝置 通常具備的構成構件（光擴散板、背光 板以外之 324127 者所s胃液 32 201247419 時 晶面板的「背面側」係指液晶面板裝載於液晶_ 的背光侧，另一方面，所謂液晶面板的「前面匈 面板裝載於液晶顯示裝置時的辨識侧。 實施例 以下列舉實施例，更詳細地說明本發明，但本 限於該些例。例中，表示含量或使用量之％以及ppm， 不 特別限制則為重量基準。而且，霧度的測定以及表面無…、 射及擴散的狀態之全光線透過率之測定、相位差值的測 疋、抗杈彈性率（tensile elasticity)的測定、單體透過 率的測定以及偏光板的耐久性評價’分別以下述的方法進 行。 [全部霧度的測定以及表面無反射及擴散的狀態之全光線 透過率的測定] 使用根據JISK7136 : 2000「塑膠-透明材料的霧度之 求得方法」之（股）村上色彩技術研究所製的霧度計HM150， 測定薄祺的霧度。而且，以鄰苯二甲酸二曱酯充滿的石英 至（cell)中’浸潰薄膜的狀態下，使用相同的霧度計，測 又全光線透過率。以鄰苯二曱酸二曱酯充滿的石英室（cell) 中’浸漬薄膜的狀態下，測定薄膜的内部霧度時，亦即相 當於薄骐表面實質上無反射及擴散之狀態。 [相位差值的測定] 使用王子計測機器（股）製的KOBRA-WR，測定薄膜的面 内相位差值R。及厚度方向相位差值Rth。 [抗拉彈性率的測定] 324127 33 201247419 使用（股）島津製作所製的Autograph AG-l，測定溫度 23°C以及80°C之抗拉彈性率。 [單體透過率的測定] 使用日本分光（股）製的分光光度計v_71〇〇，測定偏光 膜及偏光板的單體透過率。 [偏光板的耐久性評價] 將偏光板切成200mmx300inm(短邊為偏光板的吸收軸）， 隔著黏著劑，貼合於鈉鈣玻璃，放入8〇。〇乾燥狀態的烤箱 維持100小時後，觀察玻璃與偏光板之間是否產生剝離， 由以下的基準評價。 〇：偏光板從玻璃面沒有剝離，即使有也小於lmm。 \ :偏光板從玻璃面剝離1 mm以上。 〈實施例1〉 於乙烯含量為0.4%之MFR為9g/l〇分鐘之丙烯/乙烯 共聚物’調配500 ppm之三醢胺系成核劑之N，Ν’，Ν” -三 (2〜曱基環己基）-丙烷-1，2, 3-三甲醯胺[具有上述式（1〇) 的構造、可從新日本理化（股）取得]之樹脂組成物，以加熱 至275C的50 ιηιηφ擠出機進行炫融混練，然後，由600mm 寬的T型模以熔融狀態擠出，以溫度調節為5〇〇c的冷卻滾 輪冷卻，製作厚度75//in。測定所得的丙烯系樹脂薄膜的 全部霧度、表面無反射及擴散的狀態之全光線透過率、相 位差值（R。及Rth)以及23°C與80°C的抗拉彈性率，結果整 理於表1 ^再者，表面無反射及擴散的狀態之全光線透過 率’在表1中只以「全光線透過率」的項目表示。而且， 324127 34 201247419 該例在製成4膜時的加卫特性沒有問題。 理後然Λ上製作的丙稀⑽脂薄膜的單面施以電晕處 r以及光理面塗佈厚度4#m之包含光硬化性環氣樹 月曰以及杨離子聚合料劑之光硬化性接合劑。另 =於-軸延伸的厚度5Q/zm之面内相位差值r。為Μ⑽、 旱方向相仅差值Rth為124nm之降获烯系樹脂薄膜的單 面’施以電暈處理後，於該電暈處理面，塗佈與上述相同 的厚度4/zm之光硬化性接合齊卜然後，於聚乙稀醇吸附配 向碳之偏光骐的-面，貼合上述丙烯系樹脂薄膜的接合劑 層’同時於另—面’貼合上述降莰烯系樹脂薄膜的接合劑 b以1〇〇 ιηιηφ的一對夾持滾輪夾壓。然後，從降莰烯系 樹鈿薄膜侧，照射紫外線，使兩者的接合劑層硬化，製作 偏光板。如此所得的偏光板的耐久性，以上述所示的方法 評價時，玻螭面與偏光板間沒有剝離。此處所使用的偏光 膜’其本身的單體透過率為42.3%’於其兩面貼合上述各樹 脂薄膜成為偏光板時的單體透過率變成41· 9%，成為偏光板 時的單體透過率（％)的降低量（差）為0.4%。從偏光膜本身 的單體透過率’減去成為偏光板時的單體透過率（單位皆為 %)之值’於以下的例稱為「成為偏光板時的單體透過率（％) 的降低量」，於表1以「透過率（％)的降低量」之項目表示。 〈實施例2〉 除了成核劑的調配量變更為1000 ppm外，與實施例i 同樣地製作丙烯系樹脂薄膜。所得的丙烯系樹脂薄膜的物 性’彙整於表1。而且，該例之製成薄膜時的加工特性沒 324127 35 201247419 有問題。其中除了使用此處所得的丙烯系樹脂薄膜以外， 與實施例1同樣地製作偏光板’評價耐久性時，玻璃面與 偏光板間沒有剝離。成為偏光板時的單體透過率（％)的降低 量，表示於表1。 〈實施例3&gt; 除了將成核劑變更為羧酸金屬鹽系成核劑之環己烷 -1，2-二羧酸鈣[具有上述式（2)的構造、由美國[LIKEN CHEMICAL公司取得]，其量為l〇〇〇ppm以外，與實施例1 同樣地製作丙烯系樹脂薄膜。所得的丙烯系樹脂薄膜的物 性，彙整於表1。與冷卻滾輪的密合性，在目視範圍下良 好，惟通過冷卻滾輪時，寬度方向中央部分的表面，觀察 到少許不均勻（在無法分辨的範圍下密合性並非良好）。除 了使用此處所得的丙烯系樹脂薄膜以外，與實施例1同樣 地製作偏光板，評價耐久性時，玻璃面與偏光板間沒有剝 離。成為偏光板時的單體透過率（％)的降低量，表示於表p 〈實施例4〉 除了成核劑的調配量變更為3〇〇〇ρριη外，與實施例3 同樣地製作丙烯系樹脂薄膜。所得的丙烯系樹脂薄膜的物 性，彙整於表1 »與冷卻滾輪的密合性，在目視範圍下良 好，惟通過冷卻滾輪時，寬度方向中央部分的表面，觀察 到少許不均勻（在無法分辨的範圍下密合性並非良好）。除 了使用此處所得的丙烯系樹脂薄膜以外，與實施例i同樣 地製作偏光板，評價耐久性時，玻璃面與偏光板間沒有剝 離。成為偏光板時的單體透過率（％)的降低量，表示於表1β 324127 36 201247419 〈實施例5&gt; 除了成核劑的調配量變更為5000ppm外，與實施例3 同樣地製作丙烯系樹脂薄膜。所得的丙烯系樹脂薄膜的物 性，彙整於表1。與冷卻滾輪的密合性，在目視範圍下良 好，惟通過冷卻滾輪時，寬度方向中央部分的表面，觀察 到少許不均勻（在無法分辨的範圍下密合性並非良好）。除 了使用此處所得的丙烯系樹脂薄膜以外，與實施例1同樣 地製作偏光板，評價耐久性時，玻璃面與偏光板間沒有剝 離。成為偏光板時的單體透過率（％)的降低量，表示於表1。 〈實施钭6&gt; 除了將成核劑變更為山梨醇系成核劑之卜0, 3-0; 2-0, 4-0-雙（4-丙基亞苄基）-1-丙基-D-山梨醇[具有上述式（8) 的構造、由美國MILIKEN CHEMICAL公司取得]，其量為3000 ppm外，與實施例1同樣地製作丙烯系樹脂薄膜。所得的 丙烯系樹脂薄膜的物性，彙整於表1。製成薄膜時的加工 特性沒有問題。除了使用此處所得的丙烯系樹脂薄膜以外， 與實施例1同樣地製作偏光板，評價耐久性時，玻璃面與 偏光板間沒有剝離。成為偏光板時的單體透過率（％)的降低 量，表示於表1。 〈實施例7〉 除了成核劑的調配量變更為5000ppm外，與實施例6 同樣地製作丙烯系樹脂薄膜。所得的丙烯系樹脂薄膜的物 性，彙整於表1。製成薄膜時的加工特性沒有問題。除了 使用此處所得的丙烯系樹脂薄膜以外，與實施例1同樣地 324127 37 201247419 ^乍偏光板’評價耐久性時，朗面與偏光板間沒有剝離。 成為偏光板時的單體透過率（％)的降低量，表示於表卜 〈實施例8〉 除了將成核劑變更為磷酸輯金屬鹽系成核劑之[磷酸 2,2 -亞曱基雙（4,6_二_第3 丁基苯基川納[具有上述 =(3)的構造、由（股靡KA取得]，其量為2咖卿外， 實施例1同樣地製作丙烯系樹脂薄膜。所得的丙稀系樹 曰薄膜的物性’彙整絲丨。與冷卻滾輪的密合性，在目 ^範圍下請’惟通過冷卻滾輪時，寬度方向巾央部分的 表面，觀察到少許不均勻（在無法分辨的範圍下密合性並非 良好）。除了使用此處所得的丙烯系樹脂薄膜以外，與實施 /1同樣地製作偏光板，評價耐久性時，玻璃面與偏光板 間沒有剝離。成為偏光板時的單體透過率（％)的降低量， 示於表1。 〈比較例1〉 除了於丙烯系樹脂不調配成核劑外，與實施例1同樣 也製作丙烯系樹脂薄膜。所得的丙烯系樹脂薄膜的物性， 彙整於表1。製成薄膜時的加工特性沒有問題。除了使用此 處所得的丙烯系樹脂薄膜以外，與實施例丨同樣地製作偏 光板，評價耐久性時，玻璃面與偏光板間，有i. lmm的剝 離。成為偏光板時的單體透過率（％)的降低量，表示於表J。 〈比較例2〉 除了將用以冷卻從T型模頭擠出的丙烯系樹脂之冷卻 浪輪的溫度變更為2(TC以外，與比較例1同樣地製作丙稀 324127 38 201247419 系樹脂薄膜。所得的丙稀系樹脂薄膜的物性，彙整於表1。 製成薄膜時的加工特性沒有問題。除了使用此處所得的丙 烯系樹脂薄膜以外，與實施例1同樣地製作偏光板，評價 耐久性時，玻璃面與偏光板間，有1.3 mm的剝離。成為偏 光板時的單體透過率（％)的降低量，表示於表1。 [表1] 成核劑 丙烯系樹脂薄膜 偏光板 \ 调配量 全部霧 全光線透 Ro Rth 抗拉彈性率(MPa) 加工 埘久性 透過率（％) \ (ppm) 度(¾) 過率(％) (nm) (nm) 23〇C 80°C 性 降低量 實施例1 三醮胺系 500 3.6 98.4 23 40 1434 312 〇 〇 0.7 實施例2 1000 3.0 98.8 29 41 1498 438 〇 〇 1.0 實施例3 羧酸金屬 鹽系 1000 5.7 99.8 38 147 1390 310 Δ 〇 0.6 實施例4 3000 2.2 98.9 55 57 1739 445 Δ 〇 0.8 實施例5 5000 2.2 99.1 55 56 1470 474 Δ 〇 0.5 實施例6 山梨醇系 3000 4.8 99.3 16 393 1795 427 〇 〇 0.9 實施例7 5000 5.0 99.2 15 440 1781 410 〇 〇 0.9 實施例8 磷酸酯金 屬鹽系 2000 4.1 99.2 164 103 1236 299 Δ 〇 0.7 比較例1 無 (50〇C冷卻） - 22.1 100 23 37 1108 172 〇 X 0.2 比較例2 無 (20°C冷卻） - 0.9 99.7 2 16 1000 60 〇 X 0.2 表1中，「加工性」的評價基準係如下述。 (加工性） 〇：薄膜與冷卻滾輪的密合性良好。 :薄膜與冷卻滾輪的密合性稍微欠佳。 〈實施例9〉 除了三醯胺系成核劑之Ν，Ν’，ΓΓ -三（2-曱基環己基） -丙烷-1，2, 3-三曱醯胺的調配量變更為lOOppm外，與實施 例1同樣地製作丙烯系樹脂薄膜，再使用該丙烯系樹脂薄 膜，與實施例1同樣的方法製作偏光板。丙烯系樹脂薄膜 在製膜時的加工特性沒有問題。丙烯系樹脂薄膜的物性、 偏光板的耐久性測試結果以及成為偏光板時的單體透過率 39 324127 201247419 (%)的降低量，與表1相同的要點，彙整於表2。 〈實施例10〉 除了羧酸金屬鹽系成核劑之環己烷-1，2-二羧酸鈣的 調配量變更為lOOppm外，與實施例3同樣地製作丙烯系樹 脂薄膜，再使用該丙烯系樹脂薄膜，與實施例3同樣的方 法製作偏光板。丙烯系樹脂薄膜製膜時的加工特性沒有問 題。丙烯系樹脂薄膜的物性、偏光板的耐久性測試結果以 及成為偏光板時的單體透過率（％)的降低量，與表1相同的 要點，彙整於表2。 [表2] 成核劑 丙烯ί ^樹脂薄 膜 偏光板 \ 種類 調配量 (ppm) 全部蒋 度00 全光線 透過率 Ro (nm) Rth (nm) 抗拉彈性率 (Mpa) 加工 性 耐久 性 透過率 00降低 \ (%) 23〇C 80°C 量 實施 例9 三醖 胺系 100 6.8 100 24 35 1320 232 〇 〇 0.4 實施 例10 羧酸金 屬鹽系 100 16.8 100 35 118 1293 251 〇 〇 0.4 如表1所示，藉由調配成核劑為500ppm以上，在適當 條件下製膜，所得的丙烯系樹脂薄膜，其全部霧度變小， 80°C的抗拉彈性率成為200MPa以上，被賦予剛性，應用其 之偏光板之耐久性佳。於該情況之丙烯系樹脂薄膜，其表 面無反射及擴散的狀態之全光線透過率成為稍微低於 100%之值，成為偏光板時的單體透過率（％)的降低量也稍微 變大。Rth=[(nx+ny)/2-nz]xd In-plane phase difference R. When the temperature is less than 40 nm or exceeds 100 nm, the viewing angle compensation capability of the panel tends to decrease. Further, when the thickness direction phase difference Rth is less than 80 nm or exceeds 250 nm, the viewing angle compensation capability of the panel is still lowered. Further, the in-plane phase difference value and the thickness direction phase difference value Rth' may be, for example. It was measured using KOBRA 21ADH (manufactured by Oji Scientific Instruments Co., Ltd.). In order to obtain a decene-based resin film having the refractive index characteristics as described above, in addition to appropriately adjusting the stretching ratio and the stretching speed, various temperatures such as a preheating temperature, an extension temperature, a heating set temperature, and a cooling temperature at the time of stretching can be appropriately selected and Change mode can be. Such a refractive index characteristic can be obtained by performing the stretching under milder conditions, for example, the stretching ratio is preferably from 1.05 to 1.6 times, and more preferably from 1.1 to 1.5 times. In the case of biaxial stretching, the stretching ratio in the maximum extending direction may be the aforementioned range. The extended decene-based resin film to be used in the present invention is not particularly limited in thickness, and is preferably in the range of 20 to δ Ο βιη, and more preferably in the range of 40 to 80 / / m. When the thickness of the decene-based resin film is less than 2 〇# claws, it is difficult to use it, and there is a tendency that the predetermined phase difference becomes difficult to be exhibited. On the other hand, the thickness of the decene-based resin film exceeds 8 〇. When the melon is used, the workability is deteriorated, and the transparency is lowered, and the weight of the obtained polarizing plate is increased. (Bonding agent) 324127 29 201247419 The polarizing plate of the present invention is a film which is bonded to both surfaces of a polypropylene resin film, and is bonded to a resin film. The bias of the present invention and, for example, the above-mentioned reduced thinner thinner, use the same kind of combination: a double-sided mixture of polarizing films. From the viewpoint of thinning of the bonding agent layer, a different type of bonding agent such as a water-based bonding agent, that is, a bonding agent for bonding the cleavage 4 is used. Moreover, from the viewpoint of the joint strength, = the solution to the water or the light hardening which is hardened by light itself, which is hardened by light, is an ideal bonding agent, such as a photo-curable epoxy resin and a light-receiving agent. The combination of the propylene-based resin film is most preferable at the point of bonding strong sound. The light-curing joint strength is the point of the most rational performance of the line of light source, and the Yi Tecai V performance line is hardened. The live 1 line is ideal. It is ideal for low-pressure mercury lamps, medium-pressure mercury lamps, ultra-high pressure mercury lamps, chemical lamps, color lamps, microwave-excited mercury lamps, and metal-based materials. As a method of laminating the above transparent resin film on a polarizing film, it is usually a conventional one, for example, by a Myer bar coat method, a gravure coating method, or a notch wheel coating (C ( ) mina c〇at) method, doctor blade coating (d〇ct〇r blade) method, slit coating (die c〇at) method, dip coating (dip c〇at) method, spray method, etc. A method in which a film and/or a bonding surface of a film bonded thereto is coated with a bonding agent and the two are overlapped. In the above coating method, from the viewpoints of thickness accuracy, coating thickness, equipment size, and the like of coating a crucible, a gravure coating method or a slit coating method is preferable, and from the same viewpoint, a gravure coating 324127 30 is more preferable. 201247419 The second method of 'gastric gravure coating method refers to the application of the selected coating method by using the selected gravure coating method, and the direction of flow of the oppositely coated film, which is surrounded by the intaglio roller in the opposite direction. Position, set the cavity, and apply the method of supplying the body in the cavity. After the bonding agent is applied, the 'polarized film is connected to the film' and the film is sandwiched by a nip roll or the like. . Further, in order to improve the bondability on the surface of the adhesive coating film of the polarizing film and/or the transparent resin film, plasma treatment, corona treatment, ultraviolet irradiation treatment, flame treatment, and chemical treatment may be appropriately performed. Surface treatment. As the saponification treatment, for example, a method of impregnating an aqueous solution such as sodium hydroxide or potassium hydroxide. After the transparent resin film is laminated on both surfaces of the polarizing film via the bonding agent layer, when the water-based bonding agent is used, heat treatment is applied and dried. The heat treatment is carried out, for example, by blowing hot air, and the temperature is usually in the range of 40 to 100 ° C, preferably 60 to 100 ° C. Further, the drying time is usually 20 to 1200 seconds. In this case, the thickness of the bonding layer may be O.lym or less. On the other hand, when the photocurable bonding agent is used, the bonding agent is cured by irradiation of the active month b, and the polarizing film and the transparent resin film on both sides are bonded. In this case, the thickness of the bonding layer is usually from 0.5 to 1, more preferably from 1 to 4 // m, more preferably from 1. 5 to 4 // m. When the thickness of the adhesive layer is less than 0.5/m, there is a problem that the bonding is insufficient, and when the thickness of the adhesive layer exceeds 5 cm, the appearance of the polarizing plate may be poor. (Adhesive) The polarizing plate of the present invention may have an adhesive layer laminated to a transparent resin film to 324127 31 201247419. The adhesive layer can be suitably used for bonding to a liquid crystal cell, for example, when the polarizing plate is applied to a liquid crystal film. When the polarizing resin = the acrylate adhesive of the nucleating agent in the range of _G ppm is bonded to the other side to reduce the film of the virgin resin, the film of the transfer resin is usually used. In the adhesive layer, it can be: μ曰-adhesive agent, Qianshuyue from transparency, adhesion, reliability, heavy work (in the case of the use of acrylic acid adhesive, ideally. Adhesive layer ^ 4 The viewpoint, the solution containing the dosing agent, (10) the slit coating, = can be applied to the plastic film (called the release film) which is subjected to the release treatment by coating the film, drying it on the film; ^Outside: It can be applied to the method of printing a ruthenium-based resin film: the layer of the agent is generally in the range of 2 to 4. The thickness of the layer of the agent layer is (preferably, the liquid crystal display device) The polarizing plate of the present invention can be suitably applied to a (four) crystal display device, and the polarizing plate of the present invention is separated by a device. The liquid is disposed on the back side of the liquid crystal panel. In this case, the present invention: layer: more preferably an olefinic system The resin film is formed on the side away from the liquid crystal cell, and the light plate is mounted on the light panel. Such a liquid crystal display device uses the present invention, and the backlight has better compatibility with the display, and the stability of the display function is also low. Therefore, it is possible to adopt a conventionally known &, 39&lt;4 not-to-ship portion other than the above-mentioned features. In the case of the liquid crystal display device, the liquid crystal display device can be appropriately mounted on the liquid crystal display device (the back surface side of the crystal panel of the 324127 other than the light diffusing plate or the backlight plate). On the other hand, the backlight side of the liquid crystal panel is the identification side when the front Hung panel is mounted on the liquid crystal display device. EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is limited thereto. The content or the amount of use and the ppm are not particularly limited, and are based on the weight. Moreover, the measurement of the haze and the measurement of the total light transmittance in the state of no surface, radiation and diffusion, and the measurement of the phase difference, the resistance The measurement of the tensile elasticity, the measurement of the monomer transmittance, and the evaluation of the durability of the polarizing plate were carried out by the following methods. [All haze measurement and total light transmittance in a state where the surface is free from reflection and diffusion. Measurement] Murakami Color Technology Research Institute based on JIS K7136: 2000 "Method for obtaining haze of plastic-transparent materials" The haze meter HM150 was used to measure the haze of the thin crucible. Moreover, the same haze meter was used in the state of the impregnated film in the quartz filled with dinonyl phthalate. Light transmittance: When the internal haze of the film is measured in a state where the film is impregnated in a quartz cell filled with dinonyl phthalate, that is, the surface of the thin film is substantially free of reflection and diffusion. [Measurement of the phase difference value] The in-plane phase difference value R of the film and the thickness direction phase difference value Rth were measured using KOBRA-WR manufactured by Oji Scientific Instruments Co., Ltd. [Measurement of tensile modulus] 324127 33 201247419 Autograph AG-l manufactured by Shimadzu Corporation was used to measure the tensile modulus at a temperature of 23 ° C and 80 ° C. [Measurement of Monomer Transmittance] The single-transmission ratio of the polarizing film and the polarizing plate was measured using a spectrophotometer v_71〇〇 manufactured by JASCO Corporation. [Evaluation of Durability of Polarizing Plate] The polarizing plate was cut into 200 mm x 300 inm (the short side was the absorption axis of the polarizing plate), and bonded to the soda lime glass via an adhesive, and placed in 8 inches. After the oven in the dry state was maintained for 100 hours, whether or not peeling occurred between the glass and the polarizing plate was observed, and the evaluation was performed based on the following criteria. 〇: The polarizing plate is not peeled off from the glass surface, even if it is less than 1 mm. \ : The polarizing plate is peeled off from the glass surface by 1 mm or more. <Example 1> A propylene/ethylene copolymer having an MFR of 0.4% of ethylene having a MFR of 9 g/l 调 was formulated with a N, Ν', Ν"-three (2~) of a 500 ppm triamine-based nucleating agent. A resin composition of decylcyclohexyl)-propane-1,2,3-trimethylguanamine [having the structure of the above formula (1〇), available from New Japan Physical and Chemical Co., Ltd.], heated to 50 ηηιηφ of 275C The machine was subjected to smelting and kneading, and then extruded by a 600 mm wide T-die in a molten state, and cooled by a cooling roller adjusted to a temperature of 5 〇〇c to prepare a thickness of 75//in. The obtained propylene-based resin film was measured. The total light transmittance, the phase difference (R. and Rth) of all haze, the surface without reflection and diffusion, and the tensile modulus at 23 ° C and 80 ° C. The results are summarized in Table 1 ^ Again, surface The total light transmittance in the state of no reflection and diffusion is indicated by the item "all-light transmittance" in Table 1. Moreover, 324127 34 201247419 This example has no problem in the securing characteristics when the film is made into four films. Then, the acryl (10) fat film produced on the enamel is coated with a corona at one side and a photo-curable surface coated with a thickness of 4#m. Sex bonding agent. In addition, the in-plane retardation value r of the thickness 5Q/zm of the -axis extension. After the corona treatment was carried out on the corona-treated surface, the same thickness of 4/zm was applied to the corona-treated surface, after the corona treatment was performed on the one side of the olefin-based resin film having a difference Rth of 124 nm. After the bonding, the bonding layer of the propylene-based resin film is bonded to the surface of the polarizing film of the propylene-based resin film, and the bonding of the above-described decene-based resin film is bonded to the other surface. The agent b is sandwiched by a pair of holding rollers of 1 〇〇 ηηιηφ. Then, from the side of the decylene-based tree ruthenium film, ultraviolet rays were irradiated to cure the bonding layer between the two to form a polarizing plate. When the durability of the polarizing plate thus obtained was evaluated by the method described above, there was no peeling between the glass mat and the polarizing plate. The polarizing film used herein has a monomer transmittance of 42.3%. When the resin film is bonded to both surfaces to form a polarizing plate, the monomer transmittance is 41.9%, and the monomer transmittance is a polarizing plate. The reduction (difference) of the rate (%) was 0.4%. The value of the monomer transmittance (unit: %) when the polarizing plate is changed from the monomer transmittance ' of the polarizing film itself' is hereinafter referred to as "the monomer transmittance (%) when the polarizing plate is used. The amount of reduction is shown in Table 1 in the item "Transmission rate (%) reduction". <Example 2> A propylene-based resin film was produced in the same manner as in Example i except that the amount of the nucleating agent was changed to 1000 ppm. The physical properties of the obtained propylene-based resin film were summarized in Table 1. Moreover, the processing characteristics of the film produced in this example were not problematic in 324127 35 201247419. In the case where the polarizing plate was evaluated in the same manner as in Example 1 except that the propylene-based resin film obtained here was used, the glass surface and the polarizing plate were not peeled off. The amount of decrease in the monomer transmittance (%) when the polarizing plate is used is shown in Table 1. <Example 3> A cyclohexane-1,2-dicarboxylate having a nucleating agent changed to a carboxylic acid metal salt-based nucleating agent [having the structure of the above formula (2), obtained by the United States [LIKEN CHEMICAL] A propylene resin film was produced in the same manner as in Example 1 except that the amount was 10 〇〇〇 ppm. The physical properties of the obtained propylene-based resin film are summarized in Table 1. The adhesion to the cooling roller was good in the visual range, but when the roller was cooled, a slight unevenness was observed on the surface in the central portion in the width direction (the adhesion was not good in the unresolvable range). A polarizing plate was produced in the same manner as in Example 1 except that the propylene-based resin film obtained here was used. When the durability was evaluated, the glass surface and the polarizing plate were not peeled off. The amount of decrease in the monomer transmittance (%) when the polarizing plate is used is shown in Table p <Example 4> A propylene system was produced in the same manner as in Example 3 except that the amount of the nucleating agent was changed to 3 〇〇〇ρριη. Resin film. The physical properties of the obtained propylene-based resin film were summarized in Table 1 » adhesion to the cooling roller, and it was good in the visual range. However, when the roller was cooled, a slight unevenness was observed on the surface of the central portion in the width direction (indistinguishable) The adhesion under the range is not good). A polarizing plate was produced in the same manner as in Example i except that the propylene-based resin film obtained here was used. When the durability was evaluated, the glass surface and the polarizing plate were not peeled off. The amount of decrease in the monomer transmittance (%) when the polarizing plate is used is shown in Table 1β 324127 36 201247419 <Example 5> A propylene resin was produced in the same manner as in Example 3 except that the amount of the nucleating agent was changed to 5000 ppm. film. The physical properties of the obtained propylene-based resin film are summarized in Table 1. The adhesion to the cooling roller was good in the visual range, but when the roller was cooled, a slight unevenness was observed on the surface in the central portion in the width direction (the adhesion was not good in the unresolvable range). A polarizing plate was produced in the same manner as in Example 1 except that the propylene-based resin film obtained here was used. When the durability was evaluated, the glass surface and the polarizing plate were not peeled off. The amount of decrease in the monomer transmittance (%) when the polarizing plate was used is shown in Table 1. <Implementation 钭6> In addition to changing the nucleating agent to a sorbitol nucleating agent, 0, 3-0; 2-0, 4-0-bis(4-propylbenzylidene)-1-propyl- A propylene resin film was produced in the same manner as in Example 1 except that D-sorbitol (having the structure of the above formula (8) and obtained by MILIKEN CHEMICAL CO., LTD.) was used in an amount of 3000 ppm. The physical properties of the obtained propylene-based resin film are summarized in Table 1. There is no problem in the processing characteristics when the film is formed. A polarizing plate was produced in the same manner as in Example 1 except that the propylene-based resin film obtained here was used. When the durability was evaluated, the glass surface and the polarizing plate were not peeled off. The amount of decrease in the monomer transmittance (%) when the polarizing plate is used is shown in Table 1. <Example 7> A propylene resin film was produced in the same manner as in Example 6 except that the amount of the nucleating agent was changed to 5000 ppm. The physical properties of the obtained propylene-based resin film are summarized in Table 1. There is no problem in the processing characteristics when the film is formed. In the same manner as in Example 1, except that the propylene-based resin film obtained here was used, the durability was evaluated in the case of 324127 37 201247419 乍 polarizing plate, and there was no peeling between the scalar surface and the polarizing plate. The amount of decrease in the monomer transmittance (%) when the polarizing plate is used is shown in Table <Example 8> In addition to the nucleating agent being changed to the phosphoric acid metal salt-based nucleating agent [phosphoric acid 2,2-indenyl group A propylene system was produced in the same manner as in Example 1 except that the structure of the above-mentioned = (3) was obtained by the method of the above-mentioned = (3), and the amount was 2 cc. Resin film. The physical properties of the obtained acryl-tree sapphire film are combined with the cooling roller. Under the scope of the target, please observe the surface of the central portion of the width direction when passing the cooling roller. Uniformity (adhesiveness is not good in an indistinguishable range). A polarizing plate was produced in the same manner as in Example 1 except that the propylene-based resin film obtained here was used. When the durability was evaluated, the glass surface and the polarizing plate were not peeled off. The amount of decrease in the monomer transmittance (%) when the polarizing plate is used is shown in Table 1. Comparative Example 1 A propylene resin film was produced in the same manner as in Example 1 except that the nucleating agent was not blended with the propylene resin. The physical properties of the obtained propylene-based resin film are summarized in Table 1. l. lmm peeling was performed between the glass surface and the polarizing plate, and the polarizing plate was produced in the same manner as in Example 丨 except that the propylene-based resin film obtained here was used. The amount of decrease in the monomer transmittance (%) when the polarizing plate is used is shown in Table J. <Comparative Example 2> The temperature of the cooling wheel for cooling the propylene resin extruded from the T-die was changed. A propylene 324127 38 201247419-based resin film was produced in the same manner as in Comparative Example 1, except for TC. The physical properties of the obtained propylene-based resin film were summarized in Table 1. There was no problem in processing properties when the film was formed. A polarizing plate was produced in the same manner as in Example 1 except for the obtained propylene-based resin film. When the durability was evaluated, the glass surface and the polarizing plate were peeled off by 1.3 mm. The single transmittance (%) at the time of the polarizing plate was obtained. The amount of reduction is shown in Table 1. [Table 1] Nucleating agent propylene resin film polarizing plate \ All the amount of fog Full light penetration Ro Rth Tensile modulus (MPa) Processing long-term transmittance (%) \ (ppm Degree (3⁄4) Excess rate (%) (nm) (nm) 23 〇C 80 °C reduction in amount Example 1 Triammonium system 500 3.6 98.4 23 40 1434 312 〇〇 0.7 Example 2 1000 3.0 98.8 29 41 1498 438 〇〇 1.0 Example 3 Carboxylic acid metal salt system 1000 5.7 99.8 38 147 1390 310 Δ 〇 0.6 Example 4 3000 2.2 98.9 55 57 1739 445 Δ 〇 0.8 Example 5 5000 2.2 99.1 55 56 1470 474 Δ 〇 0.5 Example 6 Sorbitol 3000 4.8 99.3 16 393 1795 427 〇〇 0.9 Example 7 5000 5.0 99.2 15 440 1781 410 〇〇 0.9 Example 8 Phosphate metal salt system 2000 4.1 99.2 164 103 1236 299 Δ 〇 0.7 Comparative Example 1 None (50 〇 C cooling - 22.1 100 23 37 1108 172 〇X 0.2 Comparative Example 2 None (20 ° C cooling) - 0.9 99.7 2 16 1000 60 〇X 0.2 In Table 1, the evaluation criteria of "processability" are as follows. (Processability) 〇: The adhesion between the film and the cooling roller is good. : The adhesion between the film and the cooling roller is slightly poor. <Example 9> In addition to the triammonium nucleating agent, the blending amount of Ν', ΓΓ-tris(2-nonylcyclohexyl)-propane-1,2,3-tridecylamine was changed to 100 ppm. A propylene-based resin film was produced in the same manner as in Example 1, and a polarizing plate was produced in the same manner as in Example 1 except that the propylene-based resin film was used. The propylene-based resin film has no problem in processing properties at the time of film formation. The physical properties of the propylene-based resin film, the durability test results of the polarizing plate, and the monomer transmittance at the time of the polarizing plate 39 324127 201247419 (%) are the same as those in Table 1, and are summarized in Table 2. <Example 10> A propylene-based resin film was produced in the same manner as in Example 3 except that the amount of the cyclohexane-1,2-dicarboxylate in the carboxylic acid metal salt-based nucleating agent was changed to 100 ppm. A polarizing plate was produced in the same manner as in Example 3 on a propylene resin film. There is no problem in the processing characteristics at the time of film formation of a propylene resin film. The physical properties of the propylene resin film, the durability test results of the polarizing plate, and the amount of decrease in the monomer transmittance (%) when the polarizing plate was used were summarized in Table 2 in the same manner as in Table 1. [Table 2] Nucleating agent propylene ί resin film polarizer \ Type compounding amount (ppm) All Jiang 00 Total light transmittance Ro (nm) Rth (nm) Tensile modulus (Mpa) Processability Durability transmittance 00 lower \ (%) 23 〇 C 80 ° C Amount Example 9 Triammonium system 100 6.8 100 24 35 1320 232 〇〇 0.4 Example 10 Carboxylic acid metal salt system 100 16.8 100 35 118 1293 251 〇〇 0.4 As shown in Fig. 1, when the nucleating agent is prepared in an amount of 500 ppm or more, the film is formed under appropriate conditions, and the obtained propylene-based resin film has a small haze, and the tensile modulus at 80 ° C is 200 MPa or more, and is imparted with rigidity. The durability of the polarizing plate to which it is applied is good. In the propylene-based resin film in this case, the total light transmittance in a state where the surface is not reflected and diffused is slightly lower than 100%, and the amount of decrease in the monomer transmittance (%) when the polarizing plate is used is also slightly increased. .

相對地，如表2所示，成核劑的調配量為250ppm以下 時，所得的丙烯系樹脂薄膜，其全部霧度稍微變大，80°C 324127 40 201247419 的抗拉彈性率成為200MPa以上，被賦予剛性，應用其之偏 光板之耐久性佳。於該情況之丙烯系樹脂薄膜，其表面無 反射及擴散的狀態之全光線透過率成為大約100%，成為偏 光板時的單體透過率（％)的降低量進一步變小。 【圖式簡單說明】 第1圖表示調配或不調配成核劑之丙烯系樹脂製膜所 得的薄膜之全部霧度（％)為橫軸，將其貼合於偏光膜成為偏 光板時之偏光板的單體透過率（％)的降低量為縱軸之兩者 的關係作圖之圖。 第2圖表示以第1圖為對象之薄膜的内部霧度測定_ 的全光線透過率（％)為橫軸，將其貼合於偏光膜成為偏光板 時之偏光板的單體透過率（％)的降低量為縱軸之兩者的關 係作圖之圖。 【主要元件符號說明】 無 324127 41In contrast, when the amount of the nucleating agent is 250 ppm or less, the total propylene of the obtained propylene-based resin film is slightly increased, and the tensile modulus at 80 ° C 324127 40 201247419 is 200 MPa or more. It is given rigidity and the durability of the polarizing plate to which it is applied is good. In the propylene-based resin film in this case, the total light transmittance in a state where the surface is not reflected and diffused is about 100%, and the amount of decrease in the monomer transmittance (%) when the polarizing plate is used is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows the total haze (%) of a film obtained by forming a film of a propylene-based resin with or without a nucleating agent as a horizontal axis, and bonding it to a polarizing film to form a polarizing plate. The amount of decrease in the monomer transmittance (%) of the panel is plotted against the relationship of the vertical axis. Fig. 2 is a view showing the total light transmittance (%) of the internal haze of the film which is the object of Fig. 1 as the horizontal axis, and the specific transmittance of the polarizing plate when the polarizing film is used as a polarizing plate. The amount of decrease in %) is plotted against the relationship of the vertical axis. [Main component symbol description] None 324127 41

Claims (1)

201247419 、申請專利範圍： .種偏光板’包含聚乙烯醇系樹脂所構成的偏光膜以及 於其兩面分別隔著接合劑貼合之透明樹脂薄膜； 其中前述透明樹脂薄膜的至少一者為含有5〇至 6000ΡΡπι範圍的成核劑之丙烯系樹脂薄膜。 2. 如申請專利範圍第i項所述之偏光板，其中前述透明樹 脂溥膜的-者為含有50至刪卿範圍的成核劑之丙 烯系樹脂薄膜，前述透明樹脂薄膜的另-者為降茨烯 (norbornene)系樹脂薄膜。 3. 如申$專利圍第i項或第2項所述之偏光板，其中前 述聚丙歸系樹脂薄膜，含有25〇至6〇〇〇卿範圍的成核 劑。 4. 如申請專利範圍第丨項或第2項所述之偏光板，其中前 述聚丙烯系樹脂薄膜，含有5〇至25〇_範圍的成核劑。 5. 如申明專利㈣第丨項至第4項中任一項所述之偏光 板，其中前述成核劑為下述構造式所示之環己烷_丨，2_201247419, the scope of the patent application: A polarizing film comprising a polarizing film comprising a polyvinyl alcohol resin and a transparent resin film bonded to each other via a bonding agent; wherein at least one of the transparent resin films contains 5 A propylene-based resin film of a nucleating agent in the range of 6000 ΡΡπι. 2. The polarizing plate according to claim i, wherein the transparent resin film is a propylene resin film containing a nucleating agent in a range of 50 to 2,000, and the transparent resin film is Norbornene resin film. 3. The polarizing plate according to item i or item 2 of the patent application, wherein the polyacrylated resin film comprises a nucleating agent in the range of 25 〇 to 6 〇〇〇. 4. The polarizing plate according to claim 2, wherein the polypropylene resin film contains a nucleating agent in the range of 5 Å to 25 Å. 5. The polarizing plate according to any one of the preceding claims, wherein the nucleating agent is cyclohexane_丨, 2_ represented by the following structural formula; 6·如申請專利範11第1項至第4項中任-項所述之偏光 板，其中前述成核劑為下述構造式所示之N，N，，N，，一 三（2-甲基環己基）-丙烷_i，2,3_三甲醯胺； 324127 I 2012474196. The polarizing plate according to any one of the preceding claims, wherein the nucleating agent is N, N, N, and a three (2) represented by the following structural formula. Methylcyclohexyl)-propane_i,2,3-trimethylamine; 324127 I 201247419 324127324127