Process for the preparation of aromatic polyesters
    1.
    发明授权
    Process for the preparation of aromatic polyesters 失效
    芳香族聚酯的制备方法

    公开(公告)号:US4841000A

    公开(公告)日:1989-06-20

    申请号:US258803

    申请日:1988-10-17

    IPC分类号: C08G63/19 C08G63/195

    CPC分类号: C08G63/195

    摘要: The preparation of aromatic polyesters based on diphenols and iso- and terephthalic acid is carried out by solventfree transesterification of esters of the diphenols with the aromatic dicarboxylic acids, the esters of the diphenols being initially reacted with teriphthalic acid alone and subsequently reacted with isophthalic acid after at least 80% of the terephthalic acid has undergone reaction.

    摘要翻译: 基于二酚和异对苯二甲酸的芳族聚酯的制备通过二酚的酯与芳族二羧酸的无溶剂酯交换进行,二酚的酯最初与单独的邻苯二甲酸反应,随后与间苯二甲酸反应,随后与间苯二甲酸反应 至少80%的对苯二甲酸已经发生反应。