发明授权
- 专利标题: Cellulose ester film, method for production of cellulose ester film, and protective film for polarizing plate, polarizing plate and liquid crystal display device each using the cellulose ester film
- 专利标题(中): 纤维素酯膜,纤维素酯膜的制造方法以及偏振片用保护膜,偏振片和液晶显示装置,各自使用纤维素酯膜
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申请号: US12664683申请日: 2008-07-03
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公开(公告)号: US08274625B2公开(公告)日: 2012-09-25
- 发明人: Takatugu Suzuki , Takayuki Suzuki
- 申请人: Takatugu Suzuki , Takayuki Suzuki
- 申请人地址: JP Tokyo
- 专利权人: Konica Minolta Opto, Inc.
- 当前专利权人: Konica Minolta Opto, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Lucas & Mercanti, LLP
- 优先权: JP2007-188137 20070719; JP2007-209231 20070810
- 国际申请: PCT/JP2008/062083 WO 20080703
- 国际公布: WO2009/011229 WO 20090122
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335
摘要:
Disclosed is a cellulose ester film which rarely causes the attachment of foreign matters to the surface of a conveying roll or the failure of film transfer induced by the attachment of the foreign matters, which is free of the partial deformation caused by foreign matters on the conveying roll, exhibits high durability after saponification treatment, has good close adhesion to a polarizer, and has excellent processing suitability in the processing into a polarizer. Also disclosed is a method for producing the cellulose ester film by a melt-casting process. Further disclosed are; a protective film for a polarizing plate, which has high film strength; a polarizing plate having high durability; and a liquid crystal display having high image quality; each comprising the cellulose ester film. The cellulose ester film comprises a cellulose ester, a compound represented by the general formula (1) and a compound represented by the general formula (2).
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