公开(公告)号：US4362858A

公开(公告)日：1982-12-07

申请号：US327038

申请日：1981-12-03

申请人： Senzo Shimizu ,  Isao Nomura ,  Motohachi Usui ,  Mashahiro Harada

发明人： Senzo Shimizu ,  Isao Nomura ,  Motohachi Usui ,  Mashahiro Harada

IPC分类号： C08G63/00 ,  C08G63/19 ,  C08G63/40

CPC分类号： C08G63/40 ,  C08G63/19

摘要： A process for producing an aromatic polyester copolymer wherein the alternating configuration of the components making up the copolymer is highly regular, said process comprising a first step of reacting a dihydric phenolic compound with an aromatic dicarboxylic acid dichloride A in a reaction medium consisting of water and a water-immiscible solvent in the presence of a basic inorganic compound to give a phenolic hydroxyl-terminated aromatic oligoester containing predominantly an oligomer having a degree of polymerization of 1-2, and a second step of reacting the aromatic dihydroxy oligoester obtained in the first step with an aromatic dicarboxylic acid dichloride B in the presence of a basic inorganic compound in an amount at least sufficient to neutralize the free phenolic hydroxyl groups remaining in the reaction product mixture obtained in the first step.

摘要翻译： 一种制备芳族聚酯共聚物的方法，其中构成共聚物的组分的交替配置是高度规则的，所述方法包括使二羟基酚化合物与芳族二羧酸二氯化物A在由水和 在碱性无机化合物的存在下，与水不混溶的溶剂，得到主要含有聚合度为1-2的低聚物的酚羟基封端的芳族低聚酯，第二步是使第一 在碱性无机化合物的存在下，用至少足以中和残留在第一步获得的反应产物混合物中的游离酚羟基的量与芳族二羧酸二氯B步骤。