发明名称 |
Liquid-crystalline copolymer |
摘要 |
A liquid-crystalline copolymer having a long helical pitch, the liquid-crystalline copolymer comprises the copolymerization product of; (a) at least one liquid-crystalline epoxy compound having a helical structure and (b) at least one liquid-crystalline epoxy compound having a helical structure opposite in twining direction of helix to the helical structure of the liquid-crystalline epoxy compound (a) or (c) at least one non-liquid-crystalline epoxy compound.
|
申请公布号 |
US5248446(A) |
申请公布日期 |
1993.09.28 |
申请号 |
US19920980228 |
申请日期 |
1992.11.23 |
申请人 |
IDEMITSU KOSAN CO., LTD. |
发明人 |
UCHIDA, SHUNJI;HACHIYA, SATOSHI;HASHIMOTO, KENJI |
分类号 |
C07D303/22;C08G65/22;C09K19/38 |
主分类号 |
C07D303/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|