| 发明名称 |
Process for the preparation of polyether-ester polyols |
| 摘要 |
Polyether-ester polyols are prepared by reacting a polyether polyol, maleic anhydride and an alkylene oxide in the presence of a catalyst selected from the group consisting of calcium naphthenate and cobalt naphthenate. These polyols may be used in preparing polyurethane products.
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| 申请公布号 |
US4550194(A) |
申请公布日期 |
1985.10.29 |
| 申请号 |
US19820426311 |
申请日期 |
1982.09.29 |
| 申请人 |
BASF WYANDOTTE CORPORATION |
发明人 |
REICHEL, CURTIS J.;HARTMAN, ROBERT J. |
| 分类号 |
C08F283/06;C08F291/08;C08F299/02;C08G18/63;C08G63/676;(IPC1-7):C07C67/08;C07C67/26 |
主分类号 |
C08F283/06 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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