申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:EP0520428A2
公开(公告)日:1992-12-30
A thermotropic liquid crystalline polyester is produced by carrying out polycondensation of ester monomer [I-2], an aromatic dicarboxylic acid [II] and an aromatic carboxylic acid [III-2]. The amounts of the compounds [I-2] and [II] are substantially equivalent and the amount of the compound [III-2] is not more than 20 times that of [I-2] by mole. A thermotropic liquid crystalline polyester having good heat resistance, fluidity and uniformity can be produced.
通过酯单体[I-2]、芳香族二羧酸[II]和芳香族羧酸[III-2]的缩聚反应,生产出一种热致性液晶聚酯。化合物[I-2]和[II]的量基本相等,化合物[III-2]的量不超过[I-2]的 20 倍(以摩尔计)。这样就可以生产出具有良好耐热性、流动性和均匀性的热致性液晶聚酯。