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US4762910A Process for the preparation of copolyamide from adipic acid, terephthalic acid and hexamethylene diamine 失效
从己二酸,对苯二甲酸和六亚甲基二胺制备共聚酰胺的方法

Process for the preparation of copolyamide from adipic acid,
terephthalic acid and hexamethylene diamine
摘要:
Process for the preparation of copolyamides from adipic acid, terephthalic acid and hexamethylene diamine containing 25-48% by weight of units of hexamethylene terephthalamide, by precondensing the monomers at a temperature of at least 250.degree. C. and a pressure of at least 35 bar and completing the polycondensation in the usual manner.
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