发明名称 |
Process for the preparation of polyether polyols |
摘要 |
The invention relates to a process for the preparation of polyether polyols, which process involves: (a) contacting a phosphorus containing compound having at least one hydroxyl group with alkylene oxide to obtain alkoxylated initiator, (b) contacting the alkoxylated initiator with further alkylene oxide in the presence of a double metal cyanide complex catalyst.
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申请公布号 |
US2005272912(A1) |
申请公布日期 |
2005.12.08 |
申请号 |
US20050141916 |
申请日期 |
2005.06.01 |
申请人 |
ELEVELD MICHIEL B;MEURS JAN H H;SCHUT PETER A |
发明人 |
ELEVELD MICHIEL B.;MEURS JAN H.H.;SCHUT PETER A. |
分类号 |
C08G18/48;C08G18/50;C08G65/26;(IPC1-7):C08L75/00 |
主分类号 |
C08G18/48 |
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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