发明授权
US4937311A Aromatic polyesters and polyester carbonates containing terminal
aralkylphenyl groups, their production and use
失效
芳族聚酯和含有末端芳烷基苯基的聚酯碳酸酯，其生产和使用
- 专利标题： Aromatic polyesters and polyester carbonates containing terminal aralkylphenyl groups, their production and use
- 专利标题（中）： 芳族聚酯和含有末端芳烷基苯基的聚酯碳酸酯，其生产和使用
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申请号： US336692申请日： 1989-04-12
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公开(公告)号： US4937311A公开(公告)日： 1990-06-26
- 发明人: Ralf Dujardin , Rolf-Volker Meyer
- 申请人： Ralf Dujardin , Rolf-Volker Meyer
- 专利权人： Bayer AG
- 当前专利权人： Bayer AG
- 优先权： DEX3814729 19880430
- 主分类号： C08G63/21
- IPC分类号： C08G63/21 ; C08G63/12 ; C08G63/20 ; C08G63/64
摘要：
The new aromatic thermoplastic polyesters and polyester carbonates based on diphenols, dicarboxylic acids, chain terminators and, optionally, branching agents, which are characterized in that the chain terminators correspond to the following formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 may be the same or different and represent C.sub.2 -C.sub.12 alkyl or C.sub.8 -C.sub.20 aralkyl and at least one of the substituents R.sub.1 or R.sub.2 is a C.sub.8 -C.sub.20 aralkyl radical andn has a value of 0.5 to 1,are suitable for the production of moldings, films, fibers and filaments. The polyesters and polyester carbonates are distinguished by good thermal stability.
公开/授权文献
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