申请人:TEIJIN LIMITED
公开号:EP0213362A1
公开(公告)日:1987-03-11
Melt-moldable crystalline polyester-imides comprising units of the following formula (IA)
wherein R represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or a halogen atom, and n is an integer of 2 to 12,
as main recurring units. The polyester-imides are prepared by (1) condensing a starting mixture containing 1 mole of an imidodicarboxylic acid and 2 to 20 moles of an aromatic monohydroxy compound under heat while distilling water out of the
reaction system or (1)' condensing a starting mixture comprising 1 mole of trimellitic anhydride, 0.5 to 0.8 mole of an aliphatic diamine and 2 to 20 moles of an aromatic monohydroxy compound under heat, and thereafter (2) polycondensing the resulting reaction mixture under heat with an amount, sufficient to distill substantially all of the aromatic monohydroxy compound from the reaction system, of a diol compound or a mixture of the diol compound and an aliphatic diamine until substantially all of the aromatic monohydroxy compound is distilled out of the reaction system.
由下式(IA)单元组成的可熔融模塑结晶聚酯-酰亚胺化合物
其中 R 代表氢原子、1 至 10 个碳原子的烷基、5 至 10 个碳原子的环烷基、6 至 10 个碳原子的芳基、7 至 12 个碳原子的芳烷基、1 至 10 个碳原子的烷氧基或卤素原子,n 是 2 至 12 的整数、
作为主要循环单元。聚酯酰亚胺是通过以下方法制备的:(1) 在加热条件下冷凝含有 1 摩尔亚胺二羧酸和 2 至 20 摩尔芳香族单羟基化合物的起始混合物,同时将水从反应体系中蒸馏出来
或 (1)'冷凝包含 1 摩尔偏苯三酸酐、0.5 至 0.8摩尔脂肪族二胺和2至20摩尔芳香族单羟基化合物的起始混合物进行加热冷凝,然后(2)在所得反应混合物中加入一定量的二元醇化合物或二元醇化合物与脂肪族二胺的混合物进行加热缩聚,直至从反应体系中蒸馏出基本上所有的芳香族单羟基化合物。