发明名称 |
A process for making ordered ester/carbonate copolymers. |
摘要 |
<p>This invention is directed to a process for making ordered ester/carbonate copolymers characterized by comprising the steps of (1) contacting in an organic liquid medium a dihydric organic compound such as bisphenol-A with a carbonate precursor such as phosgene and a diacid halide such as terephthaloyl chloride under conditions such that the carbonate moieties in the resultant intermediate oligomer are formed simultaneously with or before the formation of ester moieties and (2) contacting this oligomer with additional carbonate precursor under conditions sufficient to form the desired ordered ester/carbonate copolymer.</p> |
申请公布号 |
EP0094585(A2) |
申请公布日期 |
1983.11.23 |
申请号 |
EP19830104541 |
申请日期 |
1983.05.09 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
BALES, STEPHEN EDWARD |
分类号 |
C08G63/00;C08G63/20;C08G63/64;C08G64/20;(IPC1-7):08G63/64 |
主分类号 |
C08G63/00 |
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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