| 发明名称 |
METHOD FOR PREPARING COPOLYETHER GLYCOLS |
| 摘要 |
<p>Copolyether glycols are prepared by copolymerizing alkylene oxide or cyclic acetals and tetrahydrofuran, using (1) a polymeric catalyst which contains sulfonic acid groups; and (2) a chain terminator which is water or an alkanediol.</p> |
| 申请公布号 |
CA1088102(A) |
申请公布日期 |
1980.10.21 |
| 申请号 |
CA19780305662 |
申请日期 |
1978.06.16 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
PRUCKMAYR, GERFRIED |
| 分类号 |
C07C43/10;(IPC1-7):07C43/10 |
主分类号 |
C07C43/10 |
| 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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