发明名称 |
PROCESS FOR PRODUCING AROMATIC POLYESTERS |
摘要 |
A process is described for producing shapable aromatic polyesters derived from bisphenol A and a dicarboxylic acid comprising isophthalic acid, terephthalic acid, or a mixture of the two, comprising forming a mixed anhydride of said dicarboxylic acid and acetic acid, and subsequently reacting said mixed anhydride with bisphenol A while drawing off acetic acid by-product to obtain said aromatic polyester.
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申请公布号 |
CA2016992(A1) |
申请公布日期 |
1990.12.23 |
申请号 |
CA19902016992 |
申请日期 |
1990.05.17 |
申请人 |
HOECHST CELANESE CORPORATION |
发明人 |
GUPTA, BALARAM;COSTANZA, JOHN R. |
分类号 |
C08G63/78;C08G63/19;C08G63/195;C08G63/40;C08G63/82;C08G63/83;(IPC1-7):C08G63/195 |
主分类号 |
C08G63/78 |
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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