发明名称 |
Method of making polyether polyols from solid hydroxyl containing initiators |
摘要 |
This invention provides a novel method for making polyether polyols from solid initiator compounds containing from 4 to 8 hydroxyl groups. The method involves dissolving the solid initiator compound in a solvent such as dimethyl formamide prior to alkoxylation. The method is particularly useful in making high functional sucrose-based polyether polyols which can be readily processed at moderate temperatures and give low color products. These polyols are particularly suited for the production of rigid polyurethane foams.
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申请公布号 |
US4332936(A) |
申请公布日期 |
1982.06.01 |
申请号 |
US19780952019 |
申请日期 |
1978.10.16 |
申请人 |
MOBAY CHEMICAL CORPORATION |
发明人 |
NODELMAN, NEIL H. |
分类号 |
C07H15/08;C08G18/48;C08G65/26;(IPC1-7):C07C41/00;C07H15/04 |
主分类号 |
C07H15/08 |
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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