发明名称 |
Process for the removal of catalysts from polyether polyols employing water and adsorbent |
摘要 |
An improvement in the process of catalyst removal in the preparation of polyether polyols is achieved by adding a critical amount of water from about 1 to about 5 percent by weight based on the weight of polyol to an adsorbent synthetic magnesium silicate-polyol mixture followed by filtration to remove the adsorbent.
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申请公布号 |
US4029879(A) |
申请公布日期 |
1977.06.14 |
申请号 |
US19750632276 |
申请日期 |
1975.11.17 |
申请人 |
BASF WYANDOTTE CORPORATION |
发明人 |
MUZZIO, JOHN A. |
分类号 |
C08G65/30;(IPC1-7):C07H15/08;C07C41/00;C07C43/00 |
主分类号 |
C08G65/30 |
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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