| 发明名称 |
Polyol preparation |
| 摘要 |
Covers a method of preparing polyether polyols useful in making a polyisocyanurate polymer by oxyalkylating an alcohol by the catalytic addition of an alkylene oxide to said alcohol in presence of a catalyst selected from the group consisting of carbamate salts, aminophenols, hexahydro-s-triazines and tetrahydrooxadiazines.
|
| 申请公布号 |
US4228310(A) |
申请公布日期 |
1980.10.14 |
| 申请号 |
US19790021517 |
申请日期 |
1979.03.19 |
| 申请人 |
TEXACO DEVELOPMENT CORP. |
发明人 |
SPERANZA, GEORGE P.;ZIMMERMAN, ROBERT L.;AUSTIN, THOMAS H. |
| 分类号 |
C07C41/03;C08G18/18;C08G18/20;C08G65/26;C08G65/28;(IPC1-7):C07C43/11;C07C41/02 |
主分类号 |
C07C41/03 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
