Aromatic polyesters and polyester carbonates containing terminal
aralkylphenyl groups, their production and use
    44.
    发明授权
    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

    公开(公告)号:US4937311A

    公开(公告)日:1990-06-26

    申请号:US336692

    申请日:1989-04-12

    CPC分类号: C08G63/64 C08G63/20

    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.

    摘要翻译: 基于二酚,二羧酸,链终止剂和任选的支化剂的新型芳族热塑性聚酯和聚酯碳酸酯,其特征在于链终止剂对应于下式(IMAGE),其中R 1,R 2和R 3可以是 相同或不同,代表C 2 -C 12烷基或C 8 -C 20芳烷基,并且至少一个取代基R 1或R 2是C 8 -C 20芳烷基,n具有0.5至1的值,适于制备模制品,薄膜 ,纤维和细丝。 聚酯和聚碳酸酯具有良好的热稳定性。