| 发明名称 |
PRODUCTION DE POLYOLS POLYMERES |
| 摘要 |
Polymeric polyols are prepared by reacting a polyhydroxy initiator compound with an epoxide in the presence of alkali metal hydroxide catalyst used in an amount of at least 10% by mole based on the molar amount of polyhydroxy initiator compounds. The polyols so obtained may be chain extended by reaction with further epoxide in the presence of at least 10% by mole of an alkali metal hydroxide catalyst based on the molar amount of the polymeric polyol.
|
| 申请公布号 |
FR2508917(B1) |
申请公布日期 |
1988.08.26 |
| 申请号 |
FR19820011689 |
申请日期 |
1982.07.02 |
| 申请人 |
UNIVERSITY MANCHESTER INSTITUTE |
发明人 |
ROBERT FREDERICK THOMAS STEPTO, RICHARD HEYWOOD STILL ET YOJI HIRASAWA;STILL RICHARD HEYWOOD;HIRASAWA YOJI |
| 分类号 |
C07C43/13;C07C41/00;C07C41/03;C07C67/00;C07H15/08;C08G18/00;C08G18/48;C08G65/00;C08G65/26;C08G65/28;(IPC1-7):C08G65/08 |
主分类号 |
C07C43/13 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
