Method for making polyester carbonates
    7.
    发明授权
    Method for making polyester carbonates 有权
    聚酯碳酸酯的制备方法

    公开(公告)号:US06346597B1

    公开(公告)日:2002-02-12

    申请号:US09472467

    申请日:1999-12-27

    IPC分类号: C08G6400

    CPC分类号: C08G63/64

    摘要: A process for preparing a polyester carbonate is provided. The process comprises the steps of: (I) reacting a diacid with a carbonic acid diester and a catalyst in the presence of a polycarbonate oligomer via melt condensation polymerization to form a pre-polymer; and (II) reacting the pre-polymer via solid state polymerization to form a polyester carbonate.

    摘要翻译: 提供了一种制备聚酯碳酸酯的方法。 该方法包括以下步骤:(I)通过熔融缩聚在聚碳酸酯低聚物存在下使二酸与碳酸二酯和催化剂反应形成预聚物; 和(II)通过固态聚合使预聚物反应形成聚酯碳酸酯。