发明名称 |
Use of polymeric ethylene oxides in the preparation of glycidyl azide polymer |
摘要 |
An improved process of preparing hydroxy-terminated aiphatic polyethers having pendant alkyl azide groups is disclosed. The process entails reacting metal azide and hydroxy-terminated aliphatic polyether having pendant haloalkyl groups at elevated temperatures. The improvement comprises using a liquid reaction medium that is relatively non-polar and comprises a polyalkyleneoxide having (a) a molecular weight above about 200 and (b) miscibility with the hydroxy-terminated aliphatic polyether having pendant haloalkyl groups at temperatures greater than about 80 DEG C.
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申请公布号 |
US4486351(A) |
申请公布日期 |
1984.12.04 |
申请号 |
US19830561394 |
申请日期 |
1983.12.14 |
申请人 |
HERCULES INCORPORATED |
发明人 |
EARL, ROBERT A. |
分类号 |
C08G65/325;(IPC1-7):C07C117/00 |
主分类号 |
C08G65/325 |
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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