| 发明名称 |
ACRYLIC COPOLYMER, OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE |
| 摘要 |
There are provided an optical film having both low orientation birefringence and low photoelastic birefringence and, at the same time, having excellent transparency and heat resistance, and a polarizing plate including the optical film and a liquid crystal display device. An acrylic copolymer according to the present invention includes as constituent units 0.5 to 35% by mass of N-aromatic substituted maleimide units and 60 to 85% by mass of alkyl (meth)acrylate units having a negative intrinsic birefringence in terms of a homopolymer. |
| 申请公布号 |
US2015369963(A1) |
申请公布日期 |
2015.12.24 |
| 申请号 |
US201314646894 |
申请日期 |
2013.11.22 |
| 申请人 |
KEIO UNIVERSITY ;JX NIPPON OIL & ENERGY CORPORATION |
发明人 |
KOIKE Yasuhiro;TAGAYA Akihiko;UCHIZAWA Sayako;MATSUO Akira;MATSUMURA Yasuo |
| 分类号 |
G02B1/08;C08J5/18;G02B5/30;C08F220/10 |
主分类号 |
G02B1/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An acrylic copolymer comprising as constituent units 0.5 to 35% by mass of N-aromatic substituted maleimide units and 60 to 85% by mass of alkyl (meth)acrylate units having a negative intrinsic birefringence in terms of a homopolymer. |
| 地址 |
Tokyo JP |
