| 发明名称 |
NEUTRALIZATION OF POLYALKYLENE CARBONATE POLYOLS FOR POLYURETHANE PREPOLYMER SYNTHESIS |
| 摘要 |
A prepolymer stabilization process for polyalkylene carbonate polyols includes the steps of adding a small quantity of an organosulfonic acid with stirring until base neutralization is achieved. One measure of base neutralization is a negative CPR, a test relating to controlled polymerization rate. 34,982-F -11- |
| 申请公布号 |
CA1320772(C) |
申请公布日期 |
1993.07.27 |
| 申请号 |
CA19880558306 |
申请日期 |
1988.02.05 |
| 申请人 |
DOW CHEMICAL COMPANY (THE) |
发明人 |
MANCUSI, ANTHONY W., III;WASHINGTON, SAMUEL J. |
| 分类号 |
C07C68/08;C07C69/96;C08G18/08;C08G18/42;C08G18/44;C08G64/40;C08K5/42 |
主分类号 |
C07C68/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
