发明名称 |
Formation of polymer polyols with a narrow polydispersity using double metal cyanide (DMC) catalysts |
摘要 |
A method of forming a polyol includes the steps of reacting an initiator with an alkylene oxide, and optionally carbon dioxide, in the presence of a double metal cyanide catalyst and a sterically hindered chain transfer agent capable of protonating the growing polyol polymer. The presence of the chain transfer agent reduces the polydispersity of the resultant polyol.
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申请公布号 |
US6713599(B1) |
申请公布日期 |
2004.03.30 |
申请号 |
US20030403197 |
申请日期 |
2003.03.31 |
申请人 |
BASF CORPORATION |
发明人 |
HINZ WERNER;WILDESON JACOB;DEXHEIMER EDWARD MICHAEL;NEFF RAYMOND |
分类号 |
C08G18/48;C08G64/18;C08G65/26;(IPC1-7):C08G65/10 |
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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