发明授权
- 专利标题： Cyclic olefin-based copolymer, film, and polarizing plate and liquid crystal display device including the same
- 专利标题（中）： 环状烯烃系共聚物，膜，偏振片及其液晶显示装置
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申请号： US12235867申请日： 2008-09-23
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公开(公告)号： US07662445B2公开(公告)日： 2010-02-16
- 发明人: Masato Nagura , Seiya Sakurai
- 申请人： Masato Nagura , Seiya Sakurai
- 申请人地址： JP Minato-Ku, Tokyo
- 专利权人： Fujifilm Corporation
- 当前专利权人： Fujifilm Corporation
- 当前专利权人地址： JP Minato-Ku, Tokyo
- 代理机构： Buchanan Ingersoll & Rooney PC
- 优先权： JP2007-248087 20070925; JP2008-058591 20080307
- 主分类号： G02B1/08
- IPC分类号： G02B1/08 ; C08F236/20 ; C08F232/08 ; C08F4/642
摘要：
A copolymer contains 10 to 69 mol % of a structural unit derived from propylene, 1 to 50 mol % of a structural unit derived from at least one α-olefin having a carbon number of from 4 to 20 and 30 to 89 mol % of a structural unit derived from at least one cyclic olefin represented by the formula (1) as defined herein, and has a weight average molecular weight of from 50,000 to 1,000,000.