201226501 • 六、發明說明： 【發明所屬之技術領域1 發明領域 本發明涉及丙烯酸黏合劑組合物。更具體地，本發明 涉及包括具有吡咯烷鲷基的丙烯酸共聚物以改善漏光的丙 烯酸黏合劑組合物。 發明背景 偏振板是用於液晶顯示器（L c D)的光學元件。偏振板包 含按恆定方向排列的以碘為基礎之化合物或二色性偏振材 料。偏振板具有具保護膜形成在其兩侧以保護偏振器模戈 - 其它裝置的多層結構。 - 構成多層結構的偏振板的各個膜由具有不同分子結構 和組成的材料組成。因而，偏振板的各個膜呈現出不同的 物理性能。具體地’當光學膜在高溫或高濕條件下長期使 用時’光學膜的尺寸變化導致的内部應力集中在外周而不 是光學膜的令心，從而導致漏光現象，其中液晶裝置的外 周比其中心亮。 已提議了多種黏合劑組合物來防止漏光。例如，已提 議使用包含丙烯酸丁酯作為主要組份且僅用烷基封端的丙 烯酸黏合黏結劑以最大化應力釋放的黏合劑組合物。具體 地’製備該丙烯酸黏合黏結劑以具有1500000〜 2000000g/mol的分子量，並使用少量熱固化劑來最大化塗 層膜的柔性。然而’僅用烷基封端的丙烯酸黏合黏結劑在 201226501 熱或熱濕條件下不能保證完全防止漏光。 此外，用於偏振器膜的常規黏合劑組合物通常包括丙 烯酸黏合黏結劑、異氰酸酯熱固化劑和石夕烷偶聯劑。添加 石夕烧偶聯劑以改善對玻璃基板的黏合強度。然而’當添加 微量矽烷偶聯劑時，在共混期間可能會出現問題。此外， 在不容易進行授拌的情況下，黏合劑組合物的黏合強度在 形成偏振器膜後變得不均勻。 【發明内容】 發明概要 本發明的一方面提供了一種黏合劑組合物，所述黏合 劑組合物包括：包括具有吡咯烷酮基的單體的丙烯酸共聚 物；和固化劑，其中基於1〇〇重量份的所述丙烯酸共聚物， 所述具有吡咯烷酮基的單體的量為11至40重量份。 所述丙烯酸共聚物可為通過聚合具有烷基的烷基（甲 基）丙烯酸烷基酯、具有羥基的（甲基）丙烯酸酯和具有吡咯 烧酮基的單體而獲得的共聚物。 所述丙烯酸共聚物可通過進一步聚合具有石夕烧基的單 體而獲得。 所述丙烯酸共聚物可通過進一步聚合具有羧基的單體 而獲得° 所述具有矽烷基的單體可通過異氰酸酯部份引入到所 述丙烯酸共聚物的主鏈。 戶斤述黏合劑組合物可進一步包括矽烷化合物。 所述丙烯酸共聚物可具有800000至1500000g/mol的重 4 201226501 均分子量° 所述丙烯酸共聚物可具有1至5的多分散性。 本發明的另一方面提供了 一種包括所述黏合劑組合物 的偏振器膜。 【實施方式】 較佳實施例之詳細說明 現將詳細描述本發明的實施方式。 本發明的一方面提供一種黏合劑組合物，包括：包括 具有吡咯烷酮基的單體的丙烯酸共聚物；和固化劑，其中 基於100重量份的丙烯酸共聚物’具有°比咯烷酮基的單體的 量為11至40重量份。 具有吡咯烷酮基的單體可包括但不限於N-乙烯基吡咯 炫_。 基於100重量份的丙烯酸共聚物，具有吡咯烷酮基的單 體量可為11至40重量份。當上述量小於11重量份時，藉偏 振黏合膜產生的漏光改善不足。如果上述量大於40重量 份，由於具有吡咯烷酮基的單體的高玻璃化轉變溫度 (Tg)，初始附著力可能會係低的。具體地，基於100重量份 的丙烯酸共聚物，上述單體量可為15至40重量份。 丙烯酸共聚物可包括至少一個烷基、至少一個羥基和 至少一個吡咯烷酮基。 在丙烯酸共聚物中，烷基、羥基和吡咯烷酮基的位置 沒有特別限制，並可根據需要適當變化。例如，在丙烯酸 共聚物中，烷基、羥基或吡咯烷酮基可分別連續排列。 201226501 丙烯酸共聚物可通過共聚具有烷基的（甲基）丙烯酸烷 基酯、具有羥基的（曱基）丙烯酸酯和具有吡咯烷酮基的單體 而獲得，其中基於100重量份的丙烯酸共聚物，具有吡咯烧 酮基的單體量可為11至40重量份。 在一個實施方式中，基於100重量份的丙烯酸共聚物， 具有烧基的（曱基）丙烯酸烧基S旨的量可為53至83重量份，優 選53至80重量份。在此範圍内，黏合劑組合物呈現出優異 的初始附著力，這促進附著於玻璃基板。 丙稀酸共聚物可包括至少兩種不同類型的具有不同炫 基的烷基（曱基）丙烯酸烷基酯。 具有烧基的（甲基）丙稀酸烧基酯可包括在酯部份具有1 至20個碳原子的直鍵或支鍵烧基的（曱基）丙稀酸烧基醋。例 如’具有烷基的（甲基）丙烯酸烷基酯可具有通式1表示的結 構’但不限於此。具體地，（甲基）丙稀酸烧基酯可包括但不 限於選自由（曱基）丙烯酸曱酯、（甲基）丙烯酸乙酯、（甲基) 丙稀酸丙酯、（曱基）丙稀酸正丁酯、（甲基）丙烯酸叔丁酯、 (甲基）丙烯酸異丁酯、（甲基）丙烯酸戊酯、（甲基）丙烯酸己 酯、（曱基）丙烯酸庚酯、（甲基）丙烯酸辛酯、（曱基）丙烯酸 壬酯、（甲基）丙稀酸癸酯、（甲基）丙稀酸十一烧酯和（曱基) 丙稀酸月桂酯組成的組中的至少一種。 具有經基的（曱基）丙稀酸酯可指在末端或在酯結構中 包括羥基的單體，並可與（曱基）丙烯酸烷基酯或N_乙烯基吡 略烧酮共聚。例如’具有羥基的（曱基）丙烯酸酯可具有通式 2表不的結構。具體地，具有經基的（曱基）丙稀酸醋可包括 201226501 但不限於選自由（甲基）丙烯酸-2-羥乙酯、（甲基）丙烯酸_4_ 經丁 S曰、（曱基）丙細酸-2-經丙自旨、（甲基）丙稀酸_2-經丁g旨、 (甲基）丙烯酸-6-羥己酯、1,4-環己烷二曱醇單（曱基）丙稀酸 西旨、1-氣-2-經丙基（甲基）丙烯酸s旨、二乙二醇單（曱基）丙稀 酸®旨、1,6-己二醇單（甲基）丙烯酸醋、季戊四醇三（曱基）丙 烯酸酯、二季戊四醇五（甲基）丙烯酸酯、新戊二醇單（曱基) 丙烯酸酯、三羥曱基丙烷二（曱基）丙烯酸酯、三羥曱基乙烷 一（曱基）丙稀酸酯、2-經基-3-苯氧基丙基（曱基）丙稀酸酯、 4-羥基環己基（甲基）丙烯酸酯、2-羥基-3-苯氧基（甲基）丙烯 酸酯和環己烷二甲醇二（曱基）丙浠酸酯組成的組中的至少 一種。此外，可使用2-羥基乙基（甲基）丙烯醢胺代替具有羥 基的（甲基）丙稀酸S旨。 基於100重量份的丙稀酸共聚物，具有經基的（甲基）丙 烯酸酯量可為1至10重量份，優選為1至7重量份。在此範圍 内’可獲得優異的交聯密度，以防止當黏合膜形成時的蠕 變現象(creeping phenomenon) ’且該組合物在再加工中不會 轉移至玻璃上，呈現出優異的初始附著力。 例如，丙烯酸共聚物可通過共聚通式1和2表示的單體 以及具有吡咯烷酮基的單體來獲得。 [通式1] CH2=CR-C(=0)0-(CH2)p-CH3 > 其中R表示-Η或-(CH2)n-CH3，η為〇至5的整數，且p為 〇至10的整數。 [通式2] 201226501 CH2=CR-C(=0)〇-(CH2)q-〇H， 其中R表示-H或-(CH2)n-CH3，n為〇至5的整數，且q為 1至10的整數。 在丙烯酸共聚物中，通式丨和2表示的單體以及具有〇比 咯烷酮基的單體沒有特別限制，並可根據需要適當改變， 且相同的單體可連續排列。 通式1表示的單體、通式2表示的單體和具有吡咯烷酮 基的單體的摩爾比可為63〜84 : 3〜8.5 : 14〜29，優選69 〜82 : 5〜7 : 15 〜24。 在此範圍内’黏合劑組合物可防止漏光，呈現優異的 耐熱性，並具有高剝離強度，藉此在防止分層的同時消除 再剝離。 丙烯酸共聚物可進一步包括選自由矽烷基和羧基組成 的組中的至少一種、以及烧基、經基和η比略烧酮基。 具有矽烷基的單體可表示包括矽烷或矽烷基的單體， 並鍵結至具有羥基的（曱基）丙烯酸酯的羥基。具有石夕烷基的 單體可具有通式3表示的結構。 [通式3] (R2)(R3)(R4)Si-(CH2)s-R5， 其中R2、R3和R4表示鹵素或Cl至C5炫氧基，如果s為 0，則R5表示乙烯基，且如果s為1至1〇，則R5表示NCO。 除矽烷基以外，具有矽烷基的單體還可進一步包括異 氰酸酯基。由於異氰酸酯基，具有矽烷基的單體可與丙烯 酸共聚物的主鏈連接。具體地’具有矽烷基的單體可通過 8 201226501 異氰酸酯基與具有羥基的（曱基）丙烯酸酯的羥基之間的鍵 包含在丙烯酸共聚物中。 基於100重量份的丙烯酸共聚物，具有矽烷基的單體量 可為1至5重量份，優選為1至2重量份。在此範圍内，黏合 劑組合物呈現出優異的聚合穩定性和聚合後的儲存穩定性。 例如，丙烯酸共聚物可藉由共聚通式1至3表示的單體 和具有吡咯烷酮基的單體來獲得。 通式1至3表示的單體和具有吡咯烷酮基的單體可以59 〜85 : 1〜8.5 : 14〜30 : 〇·5〜1.5的摩爾比共聚。在此範圍 内，黏合劑組合物消除了若單獨使用矽烷偶聯劑時將出現 的不均勻的黏合強度。 丙烯酸共聚物可藉由聚合具有烷基的（曱基）丙烯酸院 基酯、具有叛基的（甲基）丙烯酸酯、具有η比洛烧酮基的單體 和具有羧基的單體來獲得。 具有羧基的單體可具有通式4或5表示的結構。 [通式4] CH2=CR-C(=0)0-(CH2)r-C00H > 其中R表示-Η或-(CH2)n-CH3，η為〇至5的整數，且 至10的整數。 [通式5] CH2=CR-C(=0)0H， 其中R表示-Η或-(CH2)n-CH3 ’且η為〇至5的整數。 基於100重量份的丙烯酸共聚物’具有羧基的單體量可 為1至5重量份，優選為1至2重量份。在此範圍内，可獲得 201226501 優異聚合穩定性和聚合後的儲存穩定性。 例如，丙烯酸共聚物可藉由共聚通式1和2表示的單 體、具有吡咯烷酮基的單體、以及通式4或5表示的單體來 獲得。通式1和2表示的單體、具有吡咯烷酮基的單體、以 及通式4或5表示的單體可以56〜84 : 1〜8 : 14〜31 : 1〜4.5 的摩爾比共聚。在此範圍内，黏合劑組合物消除了若單獨 使用石夕烧偶聯劑時將出現的不均勻的黏合強度。 或者’丙烯酸共聚物可包括烷基、羥基、吡咯烷酮基、 石夕烧基和叛基。上述烷基 '羥基、吡咯烷酮基、矽烷基和 叛基沒有特別限制，並可根據需要適當變化。此外，在丙 稀酸共聚物中’上述烷基、羥基、吡咯烷酮基、矽烷基和 叛基可分別連續排列。 基於100重量份的丙烯酸共聚物，具有矽烷基的單體量 可為1至5重量份’優選為1至2重量份。在此範圍内，黏合 劑組合物呈現出優異的聚合穩定性和儲存穩定性。 基於100重量份的丙烯酸共聚物，具有羧基的單體含量 可為1至5重量份’優選為1至2重量份。在此範圍内，黏合 劑組合物呈現出優異的聚合穩定性和儲存穩定性。 丙稀酸共聚物可具有800000至15 00000g/mol的重均分 子量。 丙烯酸共聚物可具有1至5的多分散性。 上述黏合劑紐合物可包括94至99.8重量份的丙烯酸共 聚物和0.2至6重量份的固化劑。 上述固化劑可為熱固化劑 。例如，熱固化劑可包括選 10 201226501 •自由異氰酸S旨、環氧、吖環丙烧(aziridine)、三聚氰胺、胺、 醯亞胺、碳二亞胺和醯胺固化劑組成的組中的至少一種， 但不限於此。具體地，可使用異氰酸酯熱固化劑。 可使用任何公知的異氰酸酯熱固化劑。異氰酸酯熱固 化劑的實例可包括但不限於選自由2,4-三氣乙烯二異氰酸 醋（2,4-trilene diisocyanate)、2,6-三氣乙烯二異氰酸醋、氫 化三氣乙烯二異氰酸酯、1，3-二甲苯二異氰酸酯、1，4_二甲 笨二異氰酸酯、二苯基曱烷-4,4-二異氰酸酯、1,3-雙異氰酸 根合甲基環己烷、四甲基二甲苯二異氰酸酯、丨，5-萘二異氰 酸酯、2,2,4-三曱基六亞曱基二異氰酸酯、2,4,4-三曱基六 亞甲基二異氰酸酯、三羥曱基丙烷的三氯乙烯二異氰酸酯 加合物、三羥甲基丙烷的二甲苯二異氰酸酯加合物、三苯 基曱烷三異氰酸酯和亞曱基雙三異氰酸酯組成的組中的至 少'種。 黏合劑組合物可進一步包括矽烷化合物。基於100重量 份的丙浠酸共聚物，矽烧化合物的量可為0·5至3重量份， 優選為1至2重量份。在此範圍内，可縮短與羥基的反應時 間，並能容易控制聚合反應。而且，矽烷化合物位於羥基 的側鏈’藉此改善附著力。 文中，術語“石夕炫，，或“石夕烷基”是指矽烧(SlH4)或具有一 個至四個取代基的石夕.坑，例如被鹵素取代的石夕烧或被C1-C6 直鏈或支鏈烷氧基取代的矽烷。 文中，術語“矽烷化合物”或“具有矽烷基的單體，，是指 包括上述“矽烷，，或“矽烷基，，且係鍵結至羥基或普通矽烷偶 201226501 聯劑的化合物。具體地，具有矽烷基的單體可通過異氰酸 酯部份I建結至經基。 化合物或具有矽烷基的單體可包括乙烯基三氯矽 烧、乙缔基三甲氧基矽烷、乙烯基三乙氧基矽烷、3-異氰 酸西旨丙基三曱氧基矽烷和3異氰酸酯丙基三乙氧基矽烷， 但不限於此。例如，矽烷化合物或具有矽烷基的單體可包 括異氮峻酯部份或3-異氰酸酯丙基三曱氧基矽烷。 上迷矽烷化合物可為普通的矽烷偶聯劑，該矽烷偶聯 劑包括例如選自由可聚合的含氟化基團的矽化合物，如乙 烯基二曱氧基矽烷、乙烯基三乙氧基矽烷和（甲基）丙烯醯氧 基丙基三甲氧基矽烷；具有環氧結構的矽化合物，如3-縮 水甘油氧基丙基三曱氧基矽烷、3-縮水甘油氧基丙基甲基 二甲氧基矽烷和2-(3,4-環氧環己基）乙基三曱氧基矽烷；含 氨基的矽化合物，如3-氨基丙基三曱氧基矽烷、N-(2-氨基 乙基)-3-氨基丙基三曱氧基矽烷和N (2氨基乙基)3氨基 丙基甲基二甲氧基料；和3_氣丙基三曱氧基魏組成的 組中的至少一種，但不限於此。 本發明的黏合劑組合物可藉由4第-階段中藉由共聚 (甲基)丙稀§道基S旨、具有經基的（甲基)丙烯㈣和具有吼 洛炫酮基的單㈣備稍g《絲物，並在第二階段中向該 丙烯酸共聚物添加固化劑來製備。 第一階段 在第阽奴中，藉由向（甲基）丙烯酸烷基酯、具有羥基 的（甲基）丙烯_和具有鱗朗基的單體㈣合物添加 12 201226501 引發劑’並共聚n合物來製備丙烯酸共聚物黏結劑。 引發劑可包括但不限於選自由2,2偶氮雙(2 4二甲基 戊腈）、偶氮雙異丁腈、過氧化苯曱醯、過氧化二月桂醯、 叔丁基-(2-乙基己基）單過氧碳酸酯、叔戊基_(2乙基己基） 單過氧碳酸酯、U-二(叔丁基過氧)環己烷、-二(叔戊基 過氧)環己烷、叔丁基過氧_3,5 5_三甲基己酸酯、丨卜二(叔 丁基過氧)-3,3,5-二曱基環己烧、過硫酸鉀、過硫酸納、過 硫酸敍和以偶氮為基礎之水溶性引發劑組成的中的至少一 種。偶氮雙異丁腈可有利地用作引發劑。 基於100重量份的（甲基）丙烯酸烷基酯，引發劑的量可 為0.01至1重量份。 在第一階段中，添加溶劑以溶解（甲基）丙烯酸烷基酯、 具有經基的（甲基）丙稀酸酯和N-乙烯基。比η各烧酮。可使用任 何已知的溶劑，如乙酸乙酯。 在第一階段中，可進一步包括具有矽烷基的單體以製 備丙烯酸共聚物。 在第一階段中，共聚的溫度和期間可適當調節。例如， 上述共聚反應可在65至70°C下進行6至8小時。 第二階段 在第二階段中，向丙烯酸共聚物添加固化劑以製備丙 烯酸黏合劑組合物。黏合劑組合物的製備可用常規方法進 行。例如，將上述丙烯酸共聚物和固化劑加入到溶劑，如 甲乙酮中，並在室溫下攪拌30至60分鐘，藉此製得黏合劑 組合物。 13 201226501 在第-階段中’可進―步添加⑪烧化合物。 本發明另一方面提供了一種包括上述黏合劑組合物的 偏振器膜。該偏振ϋ膜可藉由本領域公知的方法使用上述 黏。^組合物製造。偏振器膜可包括但不限於3英寸膜或^ 英寸膜。 下文中，將參照以下實施例更詳細地描述本發明的構 le和功忐。然而，應理解的是，本發明不限於已闡述的實 施例，並可以多種不同方式實施。 本領域技術人員將易於認識並理解未包含在本文中的 實施方式，從而省略其解釋。 實施例 製備例1:丙烯酸共聚物的製備 在1L四頸燒瓶中，放入60g乙酸乙酯、55g 丙烯酸丁酯、20g丙烯酸甲酯、5g曱基丙稀酸 -2-羥乙酯和20gN-乙烯基吡咯烷酮，並加熱至 70°C。將〇.〇8g的偶氮雙異丁腈作為引發劑溶解 在20g乙酸乙酯中並加入該燒瓶中。使該混合 物在65°C下反應3小時，其後添加320g乙酸乙 酯以使該混合物冷卻至40°C，藉此製得丙烯酸 共聚物。反應在以l〇cc/min導入氮氣的同時進 行。丙烯酸共聚物具有4500cps的黏度、25%的 固含量、900000g/mol的重均分子量和3.4的多 分散性。黏度用Brookfield DV-II+黏度計7號鍵 子在25°C下測定。測定藉由將重均分子量除以 201226501 數均分子量計算的多分散性。具體地，將0.01 至0_015g的上述丙烯酸共聚物溶解在i〇mi的 THF中’並用〇.45-μηι注射過濾器過濾已溶解的 樣品’其後用Waters 2412 RI檢測器測定多分散 性。作為參考樣品，使用10種SM-l〇5(聚苯乙 烯Shodex(201226501 • VI. Description of the Invention: [Technical Field 1 of the Invention] Field of the Invention The present invention relates to an acrylic adhesive composition. More specifically, the present invention relates to an acrylic adhesive composition comprising an acrylic copolymer having a pyrrolidinium group to improve light leakage. BACKGROUND OF THE INVENTION Polarizing plates are optical components for liquid crystal displays (L c D). The polarizing plate contains an iodine-based compound or a dichroic polarizing material arranged in a constant direction. The polarizing plate has a multilayer structure in which a protective film is formed on both sides to protect the polarizer mode. - The respective films of the polarizing plates constituting the multilayer structure are composed of materials having different molecular structures and compositions. Thus, the individual films of the polarizing plate exhibit different physical properties. Specifically, 'when the optical film is used for a long period of time under high temperature or high humidity conditions, the internal stress caused by the dimensional change of the optical film concentrates on the periphery rather than the center of the optical film, thereby causing a light leakage phenomenon in which the outer periphery of the liquid crystal device is more than the center thereof. bright. A variety of adhesive compositions have been proposed to prevent light leakage. For example, it has been proposed to use an adhesive composition comprising butyl acrylate as a primary component and an alkyl terminated only acrylic binder to maximize stress relief. Specifically, the acrylic adhesive is prepared to have a molecular weight of 1500000 to 2,000,000 g/mol, and a small amount of a heat curing agent is used to maximize the flexibility of the coating film. However, 'only alkyl terminated acrylic adhesives are not guaranteed to completely prevent light leakage under hot or hot wet conditions in 201226501. Further, conventional binder compositions for polarizer films generally include an acrylic binder, an isocyanate thermosetting agent, and an anthracycline coupling agent. Add Shishi burning coupling agent to improve the bonding strength to the glass substrate. However, when a trace amount of a decane coupling agent is added, problems may occur during blending. Further, in the case where the mixing is not easy, the adhesive strength of the adhesive composition becomes uneven after the formation of the polarizer film. SUMMARY OF THE INVENTION An aspect of the present invention provides a binder composition comprising: an acrylic copolymer comprising a monomer having a pyrrolidone group; and a curing agent, wherein 1 part by weight is based on The acrylic copolymer, the amount of the monomer having a pyrrolidone group is 11 to 40 parts by weight. The acrylic copolymer may be a copolymer obtained by polymerizing an alkyl (meth) acrylate having an alkyl group, a (meth) acrylate having a hydroxyl group, and a monomer having a pyrrolidone group. The acrylic copolymer can be obtained by further polymerizing a monomer having a scouring group. The acrylic copolymer can be obtained by further polymerizing a monomer having a carboxyl group. The monomer having a decyl group can be introduced into the main chain of the acrylic copolymer through an isocyanate moiety. The binder composition may further comprise a decane compound. The acrylic copolymer may have a weight of 800,000 to 1,500,000 g/mol. 4 201226501 Average molecular weight. The acrylic copolymer may have a polydispersity of 1 to 5. Another aspect of the invention provides a polarizer film comprising the binder composition. [Embodiment] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will now be described in detail. An aspect of the invention provides a binder composition comprising: an acrylic copolymer comprising a monomer having a pyrrolidone group; and a curing agent, wherein the monomer having a pyrrolidone group is based on 100 parts by weight of the acrylic copolymer The amount is 11 to 40 parts by weight. Monomers having a pyrrolidone group may include, but are not limited to, N-vinylpyrrole. The monomer having a pyrrolidone group may be 11 to 40 parts by weight based on 100 parts by weight of the acrylic copolymer. When the above amount is less than 11 parts by weight, the light leakage by the polarization bonding film is insufficiently improved. If the above amount is more than 40 parts by weight, the initial adhesion may be low due to the high glass transition temperature (Tg) of the monomer having a pyrrolidone group. Specifically, the above monomer amount may be 15 to 40 parts by weight based on 100 parts by weight of the acrylic copolymer. The acrylic copolymer may include at least one alkyl group, at least one hydroxyl group, and at least one pyrrolidone group. In the acrylic copolymer, the positions of the alkyl group, the hydroxyl group and the pyrrolidone group are not particularly limited and may be appropriately changed as needed. For example, in the acrylic copolymer, an alkyl group, a hydroxyl group or a pyrrolidone group may be continuously arranged, respectively. 201226501 Acrylic acid copolymer can be obtained by copolymerizing an alkyl (meth)acrylate having an alkyl group, a (fluorenyl) acrylate having a hydroxyl group, and a monomer having a pyrrolidone group, wherein 100 parts by weight of the acrylic copolymer has The amount of the pyrrolidone group monomer may be 11 to 40 parts by weight. In one embodiment, the amount of the (fluorenyl)acrylic acid group S having an alkyl group may be 53 to 83 parts by weight, preferably 53 to 80 parts by weight, based on 100 parts by weight of the acrylic copolymer. Within this range, the adhesive composition exhibits excellent initial adhesion which promotes adhesion to the glass substrate. The acrylic acid copolymer may comprise at least two different types of alkyl (alkyl) acrylates having different leukoxyl groups. The (meth)acrylic acid alkyl ester having a flaming group may include a linear bond or a branched alkyl (mercapto) acrylate vinegar having 1 to 20 carbon atoms in the ester moiety. For example, the alkyl (meth)acrylate having an alkyl group may have the structure represented by the formula 1 but is not limited thereto. Specifically, (meth)acrylic acid alkyl ester may include, but is not limited to, selected from decyl methacrylate, ethyl (meth) acrylate, propyl (meth) acrylate, (mercapto) N-butyl acrylate, tert-butyl (meth)acrylate, isobutyl (meth)acrylate, amyl (meth)acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, ( a group consisting of octyl methacrylate, decyl methacrylate, decyl (meth) acrylate, undecyl (meth) acrylate, and lauryl acrylate At least one of them. The (mercapto) acrylate having a mercapto group may be a monomer including a hydroxyl group at the terminal or in an ester structure, and may be copolymerized with an alkyl (meth)acrylate or N-vinylpyrrolidone. For example, the (fluorenyl) acrylate having a hydroxyl group may have a structure represented by the general formula 2. Specifically, the (mercapto)acrylic acid vinegar having a mercapto group may include 201226501, but is not limited to being selected from the group consisting of 2-hydroxyethyl (meth)acrylate, (meth)acrylic acid_4_ butyl sulfonium, Propionate-2-propionate, (meth)acrylic acid _2- butyl glyceryl, (meth)acrylic acid-6-hydroxyhexyl ester, 1,4-cyclohexanedidecyl alcohol (mercapto) acrylic acid, 1-gas-2-propyl propyl (meth) acrylate, diethylene glycol mono(indenyl) acrylate acid, 1,6-hexanediol (meth)acrylic acid vinegar, pentaerythritol tris(decyl) acrylate, dipentaerythritol penta (meth) acrylate, neopentyl glycol mono(indenyl) acrylate, trishydroxypropyl propane bis(indenyl) acrylate , trihydroxydecylethane mono(indenyl) acrylate, 2-carbyl-3-phenoxypropyl (decyl) acrylate, 4-hydroxycyclohexyl (meth) acrylate, At least one selected from the group consisting of 2-hydroxy-3-phenoxy (meth) acrylate and cyclohexane dimethanol bis(indenyl) propionate. Further, 2-hydroxyethyl(meth)acrylamide may be used instead of the (meth)acrylic acid having a hydroxyl group. The amount of the (meth) acrylate having a trans group may be 1 to 10 parts by weight, preferably 1 to 7 parts by weight based on 100 parts by weight of the acrylic acid copolymer. Within this range, an excellent crosslink density can be obtained to prevent a creeping phenomenon when the adhesive film is formed, and the composition does not transfer to the glass during reworking, exhibiting excellent initial adhesion. force. For example, an acrylic copolymer can be obtained by copolymerizing a monomer represented by the formulae 1 and 2 and a monomer having a pyrrolidone group. [Formula 1] CH2=CR-C(=0)0-(CH2)p-CH3> wherein R represents -Η or -(CH2)n-CH3, η is an integer from 〇 to 5, and p is 〇 An integer of up to 10. [Formula 2] 201226501 CH2=CR-C(=0)〇-(CH2)q-〇H, wherein R represents -H or -(CH2)n-CH3, n is an integer from 〇 to 5, and q is An integer from 1 to 10. In the acrylic copolymer, the monomer represented by the formulae 丨 and 2 and the monomer having a fluorenylpyrrolidone group are not particularly limited, and may be appropriately changed as needed, and the same monomers may be continuously arranged. The molar ratio of the monomer represented by Formula 1, the monomer represented by Formula 2, and the monomer having a pyrrolidone group may be 63 to 84: 3 to 8.5: 14 to 29, preferably 69 to 82: 5 to 7: 15 twenty four. Within this range, the adhesive composition prevents light leakage, exhibits excellent heat resistance, and has high peel strength, thereby preventing delamination and eliminating re-peeling. The acrylic copolymer may further include at least one selected from the group consisting of a decyl group and a carboxyl group, and an alkyl group, a trans group, and an η ratio of a ketone group. The monomer having a decyl group may be a monomer including a decane or a decyl group, and bonded to a hydroxyl group of a (fluorenyl) acrylate having a hydroxyl group. The monomer having a linalyl group may have a structure represented by the formula 3. [Formula 3] (R2)(R3)(R4)Si-(CH2)s-R5, wherein R2, R3 and R4 represent halogen or Cl to C5 methoxyl, and if s is 0, then R5 represents a vinyl group, And if s is 1 to 1 〇, then R5 represents NCO. The monomer having a decyl group may further include an isocyanate group in addition to the decyl group. Due to the isocyanate group, a monomer having a decyl group may be bonded to the main chain of the acrylic copolymer. Specifically, the monomer having a decyl group may be contained in the acrylic copolymer by a bond between the 8 201226501 isocyanate group and the hydroxyl group of the (fluorenyl) acrylate having a hydroxyl group. The amount of the monomer having a decyl group may be 1 to 5 parts by weight, preferably 1 to 2 parts by weight, based on 100 parts by weight of the acrylic copolymer. Within this range, the adhesive composition exhibits excellent polymerization stability and storage stability after polymerization. For example, an acrylic copolymer can be obtained by copolymerizing a monomer represented by the general formulae 1 to 3 and a monomer having a pyrrolidone group. The monomer represented by the formulae 1 to 3 and the monomer having a pyrrolidone group may be copolymerized in a molar ratio of 59 to 85:1 to 8.5: 14 to 30: 〇·5 to 1.5. Within this range, the binder composition eliminates the uneven bond strength that would occur if the decane coupling agent was used alone. The acrylic copolymer can be obtained by polymerizing a (mercapto)acrylic acid ester ester having an alkyl group, a (meth) acrylate having a mercapto group, a monomer having an η pirone group, and a monomer having a carboxyl group. The monomer having a carboxyl group may have a structure represented by the formula 4 or 5. [Formula 4] CH2=CR-C(=0)0-(CH2)r-C00H > wherein R represents -Η or -(CH2)n-CH3, η is an integer from 〇 to 5, and up to 10 Integer. [Formula 5] CH2=CR-C(=0)0H, wherein R represents -Η or -(CH2)n-CH3' and η is an integer from 〇 to 5. The amount of the monomer having a carboxyl group based on 100 parts by weight of the acrylic copolymer ' may be 1 to 5 parts by weight, preferably 1 to 2 parts by weight. Within this range, excellent polymerization stability of 201226501 and storage stability after polymerization are obtained. For example, the acrylic copolymer can be obtained by copolymerizing a monomer represented by the formulae 1 and 2, a monomer having a pyrrolidone group, and a monomer represented by the formula 4 or 5. The monomer represented by the formulae 1 and 2, the monomer having a pyrrolidone group, and the monomer represented by the formula 4 or 5 may be copolymerized in a molar ratio of 56 to 84:1 to 8:14 to 31:1 to 4.5. Within this range, the binder composition eliminates the uneven bond strength that would occur if the Shiki-burning coupling agent was used alone. Alternatively, the 'acrylic acid copolymer' may include an alkyl group, a hydroxyl group, a pyrrolidone group, a sulphur group, and a thiol group. The above alkyl 'hydroxy group, pyrrolidone group, decyl group and rebel group are not particularly limited and may be appropriately changed as needed. Further, in the acrylic acid copolymer, the above alkyl group, hydroxyl group, pyrrolidone group, decyl group and mercapto group may be continuously arranged, respectively. The amount of the monomer having a decyl group may be from 1 to 5 parts by weight, based on 100 parts by weight of the acrylic copolymer, preferably from 1 to 2 parts by weight. Within this range, the adhesive composition exhibits excellent polymerization stability and storage stability. The monomer having a carboxyl group may be from 1 to 5 parts by weight, based on 100 parts by weight of the acrylic copolymer, preferably from 1 to 2 parts by weight. Within this range, the adhesive composition exhibits excellent polymerization stability and storage stability. The acrylic copolymer may have a weight average molecular weight of from 800,000 to 1,500,000 g/mol. The acrylic copolymer may have a polydispersity of 1 to 5. The above binder may include 94 to 99.8 parts by weight of the acrylic acid copolymer and 0.2 to 6 parts by weight of the curing agent. The above curing agent may be a heat curing agent. For example, the thermal curing agent may include a group consisting of 10 201226501 • free isocyanate, epoxy, aziridine, melamine, amine, quinone, carbodiimide, and guanamine curing agent. At least one of them, but is not limited to this. Specifically, an isocyanate thermosetting agent can be used. Any known isocyanate thermosetting agent can be used. Examples of the isocyanate thermosetting agent may include, but are not limited to, selected from the group consisting of 2,4-trilene diisocyanate, 2,6-triethylene ethylene diisocyanate, and hydrogenated trigas. Ethylene diisocyanate, 1,3-xylene diisocyanate, 1,4-diisopropylisocyanate, diphenyldecane-4,4-diisocyanate, 1,3-bisisocyanatomethylcyclohexane , tetramethyl xylene diisocyanate, hydrazine, 5-naphthalene diisocyanate, 2,2,4-trimethylhexaadecyl diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, three At least 'in the group consisting of trichloroethylene diisocyanate adduct of hydroxydecylpropane, xylene diisocyanate adduct of trimethylolpropane, triphenyldecane triisocyanate and decylene diisocyanate . The binder composition may further comprise a decane compound. The amount of the calcining compound may be from 0.5 to 3 parts by weight, preferably from 1 to 2 parts by weight, based on 100 parts by weight of the acrylic acid copolymer. Within this range, the reaction time with the hydroxyl group can be shortened, and the polymerization reaction can be easily controlled. Moreover, the decane compound is located at the side chain of the hydroxyl group' thereby improving adhesion. As used herein, the term "石夕炫," or "石石 alkyl" refers to 矽(SlH4) or a stone pit with one to four substituents, such as a stone-fired or replaced by a C1-C6 a linear or branched alkoxy-substituted decane. As used herein, the term "decane compound" or "monomer having a decyl group", is meant to include the above-mentioned "decane," or "decyl," and is bonded to a hydroxy group or Ordinary decane couple 201226501 compound of the compound. Specifically, a monomer having a decyl group can be bonded to a mesogenic group through the isocyanate moiety I. The compound or the monomer having a decyl group may include vinyl trichloropyrene, ethyl hexamethoxy decane, vinyl triethoxy decane, 3-isocyanate propyl trimethoxy decane, and 3 isocyanate. Propyltriethoxydecane, but is not limited thereto. For example, a decane compound or a monomer having a decyl group may include an aziridine ester moiety or a 3-isocyanate propyl trimethoxy decane. The above decane compound may be a common decane coupling agent including, for example, a ruthenium compound selected from a polymerizable fluorinated group such as vinyl dimethoxy decane or vinyl triethoxy decane. And (meth)acryloxypropyltrimethoxydecane; an anthracene compound having an epoxy structure, such as 3-glycidoxypropyltrimethoxydecane, 3-glycidoxypropylmethyldi Methoxydecane and 2-(3,4-epoxycyclohexyl)ethyltrimethoxy decane; amino group-containing hydrazine compounds such as 3-aminopropyltrimethoxy decane, N-(2-aminoethyl) At least 3-aminopropyltrimethoxy decane and N(2aminoethyl)3aminopropylmethyldimethoxylate; and at least 3 One, but not limited to. The adhesive composition of the present invention can be obtained by copolymerizing (meth) propyl sulfhydryl group in the 4th stage, having a trans group (meth) propylene (tetra) and a fluorene ketone group (four) Prepare a slight g of "silk material" and add a curing agent to the acrylic copolymer in the second stage. In the first stage, in the Dijon, by adding 12 201226501 initiator to the alkyl (meth)acrylate, the (meth) propylene having a hydroxyl group, and the monomer (tetra) having a scaly group, The compound is used to prepare an acrylic copolymer binder. The initiator may include, but is not limited to, selected from the group consisting of 2,2 azobis(2 4 dimethyl valeronitrile), azobisisobutyronitrile, benzoquinone peroxide, dilauroyl peroxide, t-butyl-(2) -ethylhexyl)monoperoxycarbonate, tert-amyl-(2ethylhexyl)monoperoxycarbonate, U-di(tert-butylperoxy)cyclohexane, -di(tert-amylperoxy) Cyclohexane, tert-butylperoxy_3,5 5_trimethylhexanoate, bismuth(tert-butylperoxy)-3,3,5-didecylcyclohexanone, potassium persulfate, At least one of sodium persulfate, persulfate, and an azo-based water-soluble initiator. Azobisisobutyronitrile can be advantageously used as an initiator. The amount of the initiator may be from 0.01 to 1 part by weight based on 100 parts by weight of the alkyl (meth)acrylate. In the first stage, a solvent is added to dissolve an alkyl (meth)acrylate, a (meth) acrylate having a trans group, and an N-vinyl group. More than η each burning ketone. Any known solvent such as ethyl acetate can be used. In the first stage, a monomer having a decyl group may be further included to prepare an acrylic copolymer. In the first stage, the temperature and period of copolymerization can be appropriately adjusted. For example, the above copolymerization reaction can be carried out at 65 to 70 ° C for 6 to 8 hours. Second stage In the second stage, a curing agent is added to the acrylic copolymer to prepare an acrylic adhesive composition. The preparation of the binder composition can be carried out by a conventional method. For example, the above acrylic copolymer and a curing agent are added to a solvent such as methyl ethyl ketone and stirred at room temperature for 30 to 60 minutes, whereby a binder composition is obtained. 13 201226501 In the first stage, the 11-burning compound can be added step by step. Another aspect of the invention provides a polarizer film comprising the above binder composition. The polarized germanium film can be used as described above by methods well known in the art. ^ Composition manufacturing. The polarizer film can include, but is not limited to, a 3 inch film or a ^ inch film. Hereinafter, the constitution and function of the present invention will be described in more detail with reference to the following examples. However, it should be understood that the invention is not limited to the illustrated embodiments, and may be embodied in many different forms. Those skilled in the art will readily recognize and understand the embodiments not included herein, and the explanations are omitted. EXAMPLES Preparation Example 1: Preparation of Acrylic Copolymer In a 1 L four-necked flask, 60 g of ethyl acetate, 55 g of butyl acrylate, 20 g of methyl acrylate, 5 g of 2-hydroxyethyl thioglycolate and 20 g of N- were placed. Vinylpyrrolidone and heated to 70 °C. 8 g of azobisisobutyronitrile was dissolved as an initiator in 20 g of ethyl acetate and added to the flask. The mixture was reacted at 65 ° C for 3 hours, after which 320 g of ethyl acetate was added to cool the mixture to 40 ° C, whereby an acrylic copolymer was obtained. The reaction was carried out while introducing nitrogen gas at 10 cc/min. The acrylic copolymer had a viscosity of 4500 cps, a solid content of 25%, a weight average molecular weight of 900,000 g/mol, and a polydispersity of 3.4. The viscosity was measured at 25 ° C using a Brookfield DV-II + viscometer No. 7 bond. The polydispersity calculated by dividing the weight average molecular weight by the 201226501 number average molecular weight was measured. Specifically, 0.01 to 0-015 g of the above acrylic copolymer was dissolved in THF of i〇mi ' and the dissolved sample was filtered with a 〇.45-μηι syringe filter'. Thereafter, the polydispersity was measured with a Waters 2412 RI detector. As a reference sample, 10 kinds of SM-l〇5 (polystyrene Shodex (
Polysturene Shodex))。 製備例2 :丙烯酸共聚物的製備 在1L四頸燒瓶中，放入6〇g乙酸乙酯、53g丙烯酸丁酯、 20g丙烯酸曱酯、5g甲基丙烯酸-2-羥乙酯和20g N-乙烯基吡 咯烷酮’並加熱至70°C。將0.08g的偶氮雙異丁腈作為引發 劑溶解在20g乙酸乙酯中並加入該燒瓶中。保持該混合物3 小時後，添加320g乙酸乙酯以使該混合物冷却至40°C。然 後，添加2g的3-異氰酸酯丙基三乙氧基矽烷和〇.〇lg的二月 桂酸二丁錫(DBTDL)作為催化劑，隨後反應12小時。反應 在以10cc/min導入氮氣的同時進行。製得的丙烯酸共聚物具 有4,800cps的黏度、25%的固含量、930,000g/mol的重均分 子量和3.2的多分散性。 製備例3至6 :丙烯酸共聚物的製備 進行與製備例1相同的過程，不同的是根據表1列出的 組成混合組份。 15 201226501 表ι(單位：g) 製備例 1 2 3 4 5 6 丙烯酸丁酯 55 53 38 38 65 45 丙烯酸甲酯 20 20 40 15 20 5 甲基丙烯酸-2-羥乙酯 5 5 5 5 5 5 N-乙烯基吡咯烷酮 20 20 15 40 10 45 3-異氰酸酯丙基三乙氧基矽烷 - 2 2 2 - - 實施例1至4和對比例1和2 根據表2中所列組成，向10重量份的曱乙酮加入製備例 1至6中製備的丙烯酸共聚物、固化劑和/或矽烷偶聯劑，並 在25°C下攪拌30分鐘，藉此製得黏合劑組合物。 表2(單位：固態的重量份) 實施例 對比例 1 2 3 4 1 2 丙烯酸共聚物 製備例 1 100 - - - - - 2 - 100 - - - - 3 - - 100 - - - 4 - - - 100 - 5 - - - - 100 - 6 - - - - - 100 匡 化劑 0.5 0.5 0.5 0.5 0.5 0.5 矽烷偶聯劑 2 - 2 - - - *固化劑：三經甲基丙烧改性的曱苯二異氰酸酯（AK-75， Aekyung Chemical) *矽烷偶聯劑：3-縮水甘油氧基丙基曱氧基矽烷(KBM-403, Shin-Etsu Chemical有限公司） 藉由以下方法評價實施例1至4和對比例1和2中製得的 黏合劑組合物的物理性能，且結果示於表3中。 物理性能的評價 1.塗層液體的目視檢查 將上述黏合劑組合物置於室溫下1天，隨後目視檢查其 16 201226501 透明性/不透明性。 2. 剝離強度(gf/25mm) 根據JIS 2107測定黏合劑組合物和玻璃基板之間的 180°剝離強度。將黏合劑组合物的樣品切成25mmxl00mm 並層壓在玻璃表面上。然後，在用質構分析儀在30kgf負荷 感測器中將黏合劑層和玻璃基板與上下夾具連接，以 300mm/min的拉伸速度進行剝離的同時測定負荷。 3. 切割性能/再加工性能 用湯姆森切割機將塗佈有實施例和對比例中製備的各 黏合劑組合物的偏振板切成4〇〇mmx250mm，並觀察偏振板 的切割截面。將偏振板通過黏合劑組合物黏結至玻璃基板 的兩面，並經受4〜5kg/cm2的壓力以製備樣品。將樣品在 70°C下放置6小時後，在超出1小時的期間内緩慢冷却至室 溫’同時觀察玻璃基板表面上的殘留物。評價標準如下。 〇：切割截面上無黏合劑殘留，且從其上完全去除黏 合劑(再加工期間無黏合劑轉移） △:切割截面上少量黏合劑殘留，且從其上稍稍不完 全去除黏合劑（再加工期間黏合劑少量轉移） X :黏合劑大量殘留，且從其上未完全去除黏合劑（再 加工期間出現黏合劑轉移） 4. 漏光 使用與以下耐久性測試中的那些相同樣品，評價透光 率的均勻性。為了判定透光率的均勻性，在暗室中用背光 觀察漏光。將塗佈後的偏振板(400mmx200mm)黏附到玻璃 17 201226501 基板(400mmx200mmxl5 mm)的兩面，使得偏振板的光學轴 互相垂直。將各樣品在80°C下保持250小時，或在高濕條 件、即60°C的溫度和90%的相對濕度下保持25〇小時，然後 在測試前於室溫下放置超過1小時。 當用裸眼難以判定透光率是否不均勻，透光率的约勺 性疋義為好。當觀察到透過率不均勻時，透過率的均勺 性表示為“差”。 5. 黏合劑蠕變(mm) 將塗有實施例和對比例中製得的各黏合劑組合物的偏 振板切成1.5cmxl.5cm，黏附到玻璃基板上，並在22〇c和 50RH%下放置3天以製備樣品。用通用測試儀(UTM)對樣品 施加2kgf的力1〇分鐘期間，根據樣品的剪切距離測定黏合 劑螺變(mm)。 6. 耐久性 藉由對偏振板施加4〜5kg/cm2的壓力使塗有實施例和 對比例中製備的各黏合劑組合物的偏振板(丨〇〇mmx丨75 黏附在玻璃基板的兩面以製備樣品。在該情況下，在潔淨 至内進行樣品的製備，以防止氣泡或雜質形成在樣品上。 將製侍的樣品在8〇〇c下放置5〇〇小時，並觀察樣品的氣泡產 生或分層以評價对熱性。為了評價耐熱性/耐濕性，將樣品 在60C和90%相對濕度的條件下放置5〇〇小時，並觀察氣泡 產生或分層。在評價之前，將樣品置於室溫下1小時後立即 用裸眼或用顯微鏡進行觀察。評價標準如下。 ◦•無氣泡或分層’ △:少量氣泡或分層，X :大量氣、泡或分層 18 201226501Polysturene Shodex)). Preparation Example 2: Preparation of Acrylic Copolymer In a 1 L four-necked flask, 6 g of ethyl acetate, 53 g of butyl acrylate, 20 g of decyl acrylate, 5 g of 2-hydroxyethyl methacrylate and 20 g of N-ethylene were placed. Pyrrolidone' and heated to 70 °C. 0.08 g of azobisisobutyronitrile was dissolved as an initiator in 20 g of ethyl acetate and added to the flask. After maintaining the mixture for 3 hours, 320 g of ethyl acetate was added to cool the mixture to 40 °C. Then, 2 g of 3-isocyanatepropyltriethoxysilane and 〇.〇lg of dibutyltin dilaurate (DBTDL) were added as a catalyst, followed by a reaction for 12 hours. The reaction was carried out while introducing nitrogen gas at 10 cc/min. The obtained acrylic copolymer had a viscosity of 4,800 cps, a solid content of 25%, a weight average molecular weight of 930,000 g/mol, and a polydispersity of 3.2. Preparation Examples 3 to 6: Preparation of Acrylic Copolymer The same procedure as in Preparation Example 1 was carried out, except that the components were mixed according to the compositions listed in Table 1. 15 201226501 Table 1 (unit: g) Preparation 1 2 3 4 5 6 Butyl acrylate 55 53 38 38 65 45 Methyl acrylate 20 20 40 15 20 5 2-Hydroxyethyl methacrylate 5 5 5 5 5 5 N-vinylpyrrolidone 20 20 15 40 10 45 3-Isocyanate propyl triethoxy decane - 2 2 2 - - Examples 1 to 4 and Comparative Examples 1 and 2 According to the compositions listed in Table 2, 10 parts by weight The ethyl ketone was added to the acrylic copolymer, curing agent and/or decane coupling agent prepared in Preparation Examples 1 to 6, and stirred at 25 ° C for 30 minutes, whereby a binder composition was obtained. Table 2 (unit: parts by weight of the solid) Example Comparative Example 1 2 3 4 1 2 Acrylic Copolymer Preparation Example 1 100 - - - - - 2 - 100 - - - - 3 - - 100 - - - 4 - - - 100 - 5 - - - - 100 - 6 - - - - - 100 Hydrating agent 0.5 0.5 0.5 0.5 0.5 0.5 decane coupling agent 2 - 2 - - - * Curing agent: trimethyl methacrylate modified benzene Diisocyanate (AK-75, Aekyung Chemical) * decane coupling agent: 3-glycidoxypropyl decyloxy decane (KBM-403, Shin-Etsu Chemical Co., Ltd.) Examples 1 to 4 were evaluated by the following methods The physical properties of the adhesive compositions prepared in Comparative Examples 1 and 2, and the results are shown in Table 3. Evaluation of physical properties 1. Visual inspection of coating liquid The above adhesive composition was allowed to stand at room temperature for 1 day, and then visually inspected for its transparency/opacity. 2. Peel strength (gf/25 mm) The 180° peel strength between the binder composition and the glass substrate was measured in accordance with JIS 2107. A sample of the binder composition was cut into 25 mm x 100 mm and laminated on the glass surface. Then, the adhesive layer and the glass substrate were connected to the upper and lower jigs in a 30 kgf load sensor by a texture analyzer, and the load was measured while peeling at a tensile speed of 300 mm/min. 3. Cutting property/reworkability The polarizing plate coated with each of the adhesive compositions prepared in the examples and the comparative examples was cut into 4 mm x 250 mm with a Thomson cutter, and the cut section of the polarizing plate was observed. The polarizing plate was bonded to both sides of the glass substrate through the adhesive composition, and subjected to a pressure of 4 to 5 kg/cm 2 to prepare a sample. After the sample was allowed to stand at 70 ° C for 6 hours, it was slowly cooled to room temperature during a period exceeding 1 hour while observing the residue on the surface of the glass substrate. The evaluation criteria are as follows. 〇: No adhesive residue on the cut section, and the adhesive is completely removed from it (no adhesive transfer during reprocessing) △: A small amount of adhesive remains on the cut section, and the adhesive is slightly incompletely removed from it (reprocessing During the transfer of the binder a small amount) X : The binder remains in a large amount, and the binder is not completely removed from it (the binder is transferred during the reprocessing) 4. Light leakage The light transmittance is evaluated using the same samples as those in the following durability test. Uniformity. In order to determine the uniformity of light transmittance, light leakage was observed with a backlight in a dark room. The coated polarizing plate (400 mm x 200 mm) was adhered to both sides of the glass 17 201226501 substrate (400 mm x 200 mm x 15 mm) so that the optical axes of the polarizing plates were perpendicular to each other. Each sample was held at 80 ° C for 250 hours or at a high humidity condition, i.e., 60 ° C and 90% relative humidity for 25 hours, and then allowed to stand at room temperature for more than 1 hour before the test. When it is difficult to determine whether the light transmittance is uneven by the naked eye, the light transmittance is preferably a good one. When the transmittance is not uniform, the uniformity of the transmittance is expressed as "poor". 5. Adhesive creep (mm) The polarizing plate coated with each of the adhesive compositions prepared in the examples and the comparative examples was cut into 1.5 cm x 1.5 cm, adhered to a glass substrate, and at 22 〇 c and 50 RH%. It was left for 3 days to prepare a sample. The adhesive screw (mm) was measured according to the shear distance of the sample by applying a force of 2 kgf to the sample for 1 minute using a universal tester (UTM). 6. Durability A polarizing plate (丨〇〇mmx丨75 adhered to each of the binder compositions prepared in the examples and the comparative examples) was adhered to both sides of the glass substrate by applying a pressure of 4 to 5 kg/cm 2 to the polarizing plate. Prepare the sample. In this case, prepare the sample cleanly to prevent bubbles or impurities from forming on the sample. Place the prepared sample at 8 °C for 5 hours and observe the bubble generation of the sample. Or layering to evaluate the heat resistance. To evaluate the heat resistance/moisture resistance, the sample was allowed to stand under conditions of 60 C and 90% relative humidity for 5 hours, and bubble generation or delamination was observed. Immediately after 1 hour at room temperature, observe with naked eyes or with a microscope. The evaluation criteria are as follows: ◦ • No bubbles or stratification ' △: a small amount of bubbles or delamination, X: a large amount of gas, bubbles or stratification 18 201226501
表3 種類 實施例 對比例 1 2 3 4 1 2 塗層液體的外觀 透明 透明 透明 透明 透明 透明 剝離強度（gf/25mm) 550 600 500 400 1000 100 切割性能/再加工性能 〇 〇 〇 〇 Δ 〇 漏光 3英寸 好 好 好 好 差 好 19英寸 好 好 好 好 好 好 黏合劑螺變(mm) 0.203 0.211 0.247 0.199 0.502 0.132 耐久性 耐熱性 〇 〇 〇 〇 △ △ 财熱性Μί濕性 〇 〇 〇 〇 Δ X 由表3可看出，根據實施例1至4的黏合劑組合物有效地 抑制了漏光，同時呈現出優異的耐久性、顯著的黏合強度 和高剝離強度。此外，根據實施例1、3和4以比較例1及2的 以100重量份的丙烯酸共聚物計包括11至40重量份N-乙烯 基吡咯烷酮的黏合劑組合物有效地抑制了漏光，同時具有明 顯改善的耐熱性。 儘管文中已公開了 一些實施方式，但本領域技術人員 應理解的是，僅以說明的方式提供這些實施方式，且能進 行各種修改、變更或者替換而不背離本發明的精神和範 圍。因此，本發明的範圍應僅由所附申請專利範圍及其等 效方案限定。 【圖式簡單說明】 (無） 【主要元件符號說明】 (無） 19Table 3 Type Examples Comparative Example 1 2 3 4 1 2 Appearance of coating liquid Transparent transparent transparent Transparent transparent peel strength (gf/25mm) 550 600 500 400 1000 100 Cutting performance / reworkability 〇〇〇〇 Δ 〇 Light leakage 3 inches, good, good, good, 19 inches, good, good adhesive, screw change (mm) 0.203 0.211 0.247 0.199 0.502 0.132 Durability heat resistance 〇〇〇〇 △ 财 Μ Μ 湿 湿 湿 X X can be seen from Table 3. The adhesive compositions according to Examples 1 to 4 effectively suppressed light leakage while exhibiting excellent durability, remarkable adhesive strength, and high peel strength. Further, according to Examples 1, 3 and 4, the binder composition comprising 11 to 40 parts by weight of N-vinylpyrrolidone based on 100 parts by weight of the acrylic copolymer of Comparative Examples 1 and 2 effectively suppressed light leakage while having Significantly improved heat resistance. Although a few embodiments have been disclosed herein, it will be understood by those skilled in the art that Therefore, the scope of the invention should be limited only by the scope of the appended claims and their equivalents. [Simple description of the diagram] (none) [Description of main component symbols] (none) 19