发明名称 |
Method for producing polyether polyol |
摘要 |
The object of the present invention is to provide a method for producing a polyether polyol which is little colored and has a high degree of polymerization in high yield by a dehydration-condensation of a polyol. In the present invention, a dehydration-condensation reaction is carried out in the presence of a catalyst composed of an acid and a base.
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申请公布号 |
US2005272911(A1) |
申请公布日期 |
2005.12.08 |
申请号 |
US20050134460 |
申请日期 |
2005.05.23 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
OKOSHI TORU;SETOYAMA TOHRU |
分类号 |
C08G65/34;(IPC1-7):C08G18/10 |
主分类号 |
C08G65/34 |
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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