发明名称 |
Process for preparing polycarbonates using cyclic isourea catalysts |
摘要 |
An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a cyclic isourea compound.
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申请公布号 |
US4262112(A) |
申请公布日期 |
1981.04.14 |
申请号 |
US19790107727 |
申请日期 |
1979.12.28 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
MARK, VICTOR |
分类号 |
C08G64/24;(IPC1-7):C08G63/62 |
主分类号 |
C08G64/24 |
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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