发明名称 |
Process for preparing low unsaturation polyether polyols |
摘要 |
Polyether polyols having reduced terminal unsaturation are prepared in a process comprising a first step of contacting a polyether having allyl terminal unsaturation with an isomerization catalyst whereby the allyl terminal unsaturation of the polyether is reduced by at least 90% conversion to propenyl terminal unsaturation in one step and, in a final step, the resulting polyether product of the first step is contacted with an acid catalyst whereby a substantial amount of the propenyl terminal unsaturation of the polyether is removed and the corresponding polyether having an additional hydroxyl group is obtained.
|
申请公布号 |
US5698746(A) |
申请公布日期 |
1997.12.16 |
申请号 |
US19960743366 |
申请日期 |
1996.11.04 |
申请人 |
HUNTSMAN PETROCHEMICAL CORPORATION |
发明人 |
LAMBERT, TIMOTHY L. |
分类号 |
C08G18/48;C08G65/26;C08G65/30;C08G65/324;(IPC1-7):C07C41/44 |
主分类号 |
C08G18/48 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|