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公开(公告)号:US06552145B1
公开(公告)日:2003-04-22
申请号:US10207853
申请日:2002-07-31
申请人: Yasumasa Okada , Hitoshi Kobayashi , Shoji Nozato , Takahiko Sawada , Kazuaki Hiratani , Toshihiro Otsuki
发明人: Yasumasa Okada , Hitoshi Kobayashi , Shoji Nozato , Takahiko Sawada , Kazuaki Hiratani , Toshihiro Otsuki
IPC分类号: C08F3200
CPC分类号: G02B1/14 , G02B1/105 , G02B1/111 , G02B5/3033 , G02F1/133528 , Y10T428/10 , Y10T428/1041 , Y10T428/31938
摘要: A polarizer protection film for protecting a polarizer used in a liquid crystal display is obtained by using a film obtained by melt film formation of a norbornene resin having a glass transition temperature Tg of 135° C. to 180° C., and an inherent viscosity (&eegr;inh) of 0.4 or more, measured at 30° C., in chloroform, wherein the Tg and &eegr;inh are within the range indicated by the following equation (2): 45&eegr;inh≦58.5−0.2Tg (2)
摘要翻译: 通过使用通过熔融成膜玻璃化转变温度Tg为135℃至180℃的降冰片烯树脂获得的膜和特性粘度来获得用于保护液晶显示器中使用的偏振器的偏振器保护膜 (etainh)在30℃下在氯仿中测定为0.4以上,其中Tg和etainh在以下等式(2)所示的范围内: