发明名称 |
Process for the preparation of aromatic polyesters |
摘要 |
The preparation of aromatic polyesters based on diphenols and iso- and terephthalic acid is carried out by solventfree transesterification of esters of the diphenols with the aromatic dicarboxylic acids, the esters of the diphenols being initially reacted with teriphthalic acid alone and subsequently reacted with isophthalic acid after at least 80% of the terephthalic acid has undergone reaction.
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申请公布号 |
US4841000(A) |
申请公布日期 |
1989.06.20 |
申请号 |
US19880258803 |
申请日期 |
1988.10.17 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
TACKE, PETER;GROGP, ULRICH;IDEL, KARSTEN-JOSEF |
分类号 |
C08G63/19;C08G63/195 |
主分类号 |
C08G63/19 |
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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