发明名称 |
CYCLOOLEFIN COPOLYMERS AND USES THEREOF |
摘要 |
<p>Disclosed is a cycloolefin copolymer which is obtained from (A) a straight-chain or branched .alpha.-olefin of 2 to 20 carbon atoms, (B) a specific cycloolefin and (C) an aromatic vinyl compound and has an intrinsic viscosity ¢~! of 0.1 to 10 dl/g, wherein the content of constituent units derived from the cycloolefin (B) and the content of constituent units derived from the aromatic vinyl compound (C) satisfy a specific relation. The cycloolefin copolymer has high heat resistance, low moisture absorption and small birefringence.</p> |
申请公布号 |
CA2234494(A1) |
申请公布日期 |
1998.10.14 |
申请号 |
CA19982234494 |
申请日期 |
1998.04.09 |
申请人 |
MITSUI CHEMICALS, INC.;HOECHST AKTIENGESELLSCHAFT |
发明人 |
TAKIMOTO, KAZUYUKI;YAMAGUCHI, MASAYOSHI |
分类号 |
G02C7/02;C08F4/659;C08F10/02;C08F210/00;C08F210/02;C08F232/08;C08G61/08;G02B1/04;G02B6/00;(IPC1-7):C08F210/00 |
主分类号 |
G02C7/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|