基本信息:
- 专利标题： 相位差薄膜
- 专利标题（英）：Retardation film
- 申请号：CN200580040137.9 申请日：2005-11-24
- 公开(公告)号：CN101065691A 公开(公告)日：2007-10-31
- 发明人： 平池宏至 , 泽田贵彦 , 八木一成 , 樋口勋夫 , 丰岛克典 , 森田健晴 , 野里省二 , 高榎义宏 , 中村岳博 , 维尔弗里德·哈特克 , 马蒂亚斯·布鲁赫 , 安妮-迈克·绍尔维恩诺尔德 , 乌多·曼弗雷德·施特林 , 金井裕之 , 芹泽肇
- 申请人： 积水化学工业株式会社
- 申请人地址： 日本大阪
- 专利权人： 积水化学工业株式会社
- 当前专利权人： 积水化学工业株式会社,申请人
- 当前专利权人地址： 日本大阪
- 代理机构： 中科专利商标代理有限责任公司
- 代理人： 朱丹
- 优先权： 340874/2004 2004.11.25 JP; 049390/2005 2005.02.24 JP; 135271/2005 2005.05.06 JP
- 国际申请： PCT/JP2005/021599 2005.11.24
- 国际公布： WO2006/057309 JA 2006.06.01
- 进入国家日期： 2007-05-23
- 主分类号： G02B5/30
- IPC分类号： G02B5/30 ; C08F232/08 ; C08F210/00 ; C08L45/00
A retardation film containing a norbornene copolymer. It is excellent in heat resistance and significantly reduced in specific gravity, birefringence, photoelasticity, and wavelength dispersion. It further has the high ability to compensate for retardation. The retardation film comprises a norbornene copolymer composition containing a norbornene copolymer comprising 40-60 mol% repeating units derived from at least one norbornene monomer selected from the group consisting of a monomer represented by the general formula (I), a monomer represented by the general formula (II), a monomer represented by the general formula (III), a monomer represented by the general formula (IV), and a monomer represented by the general formula (V) and 60-40 mol% repeating units derived from an acyclic olefin monomer. When the norbornene copolymer composition is formed into a film and then stretched in a stretch ratio of 2 while being heated at the glass transition temperature determined from dynamic viscoelasticity, then the stretched film has an in-plane birefringence defined by the following equation of 0.0033 or larger.
公开/授权文献:
- CN100489576C 相位差薄膜 公开/授权日：2009-05-20