| 发明名称 |
PROCESS FOR PREPARATION OF DIENE STYRENE .alpha.- METHYLSTYRENE BLOCK POLYMERS AND POLYMERS THEREFROM |
| 摘要 |
<p>Diene-styrene-.alpha.-methylstyrene block polymers are prepared by polymerization in excess .alpha.-methylstyrene with a lithium initiator wherein styrene-.alpha.-methylstyrene block is polymerized at a temperature from 20.degree. to 160.degree.C with the ratio of styrene to .alpha.-methylstyrene being from 50:1 to 1:50. 28,651B-F</p> |
| 申请公布号 |
CA1220588(A) |
申请公布日期 |
1987.04.14 |
| 申请号 |
CA19830422977 |
申请日期 |
1983.03.07 |
| 申请人 |
DOW CHEMICAL COMPANY (THE) |
发明人 |
TUNG, LU H.;LO, GRACE Y. |
| 分类号 |
C08F297/00;C08F297/04;(IPC1-7):C08F297/04 |
主分类号 |
C08F297/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
