Process for producing aromatic polyester
    3.
    发明授权
    Process for producing aromatic polyester 失效
    生产芳香族聚酯的方法

    公开(公告)号:US4611049A

    公开(公告)日:1986-09-09

    申请号:US727088

    申请日:1985-04-25

    IPC分类号: C08G63/82 C08G63/34

    CPC分类号: C08G63/82

    摘要: A process for producing an aromatic polyester having an aromatic dicarboxylic acid as a main acid component and trimethylene glycol or tetramethylene glycol as a main glycol component from a starting material composed mainly of an aromatic dicarboxylic acid or its functional derivative and trimethylene glycol or tetramethylene glycol; wherein at least one organometallic catalyst selected from the group consisting of organotitanium compounds and organotin compounds and at least one promoter selected from the group consisting of organic sulfonic acids and aliphatic carboxylic acids and being capable of increasing the catalyst activity of the organometallic catalyst are added to the reaction system so that the promoter increases the catalytic activity of the organometallic catalyst, and an aromatic polyester having an increased degree of polymerization is formed at an increased rate of polymerization.

    摘要翻译: 由主要由芳族二羧酸或其功能性衍生物和三亚甲基二醇或四亚甲基二醇组成的起始原料制备具有芳族二羧酸作为主要酸成分和三亚甲基二醇或四亚甲基二醇作为主要二醇成分的芳族聚酯的方法, 其中至少一种选自有机钛化合物和有机锡化合物的有机金属催化剂和至少一种选自有机磺酸和脂族羧酸并且能够增加有机金属催化剂的催化剂活性的助催化剂加入到 该反应体系使助催化剂增加了有机金属催化剂的催化活性,并以增加的聚合速率形成聚合度增加的芳族聚酯。