发明授权
- 专利标题： Retardation film and production method thereof
- 专利标题（中）： 延迟膜及其制造方法
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申请号： US11909868申请日： 2006-03-28
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公开(公告)号： US08697201B2公开(公告)日： 2014-04-15
- 发明人: Yoshikazu Kawai , Masato Shintaku , Masaaki Nakamura
- 申请人： Yoshikazu Kawai , Masato Shintaku , Masaaki Nakamura
- 申请人地址： JP Osaka
- 专利权人： Kaneka Corporation
- 当前专利权人： Kaneka Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Renner, Otto, Boisselle & Sklar, LLP
- 优先权： JP2005-105538 20050331
- 国际申请： PCT/JP2006/306205 WO 20060328
- 国际公布： WO2006/106639 WO 20061210
- 主分类号： C09K19/00
- IPC分类号： C09K19/00 ; B29D7/01 ; G02B27/02
摘要：
The present invention is to provide a retardation film having excellent durability against temperature change or the like and a production method of the retardation film. Particularly, the present invention is to provide a retardation film which realizes both reverse wavelength dispersion and durability and a production method of the retardation film. This is achieved by a retardation film including: a component (A) which is specific cellulose acylate; and a component (B) which is cellulose acylate or cellulose ether having a molecular weight different from a molecular weight of the component (A) and whose residual degree of hydroxyl group is 0.30 or more.
公开/授权文献
- US20090273837A1 RETARDATION OF FILM AND PRODUCTION METHOD THEREOF 公开/授权日：2009-11-05
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