Method for the continuous preparation of aromatic polycarbonate having a high molecular weight
    1.
    发明公开

    公开(公告)号:EP0472849A1

    公开(公告)日:1992-03-04

    申请号:EP91110417.2

    申请日:1991-06-24

    IPC分类号: C08G64/30

    CPC分类号: C08G64/30

    摘要: The invention relates to a method of preparing aromatic polycarbonate having a high molecular weight by boundary face condensation of carbonate oligomer in the presence of an aromatic monohydroxy compound as a chain stopper, base, water and organic solvent at a temperature of at most 70 C, in which the components, among which the chain stopper, are mixed in static mixers to form a fine dispersion, reacting these in a residence zone with plug flow and repeating these steps at least once.

    摘要翻译: 本发明涉及通过在芳族单羟基化合物作为链终止剂,碱,水和有机溶剂的存在下,在70℃以下的碳酸酯低聚物的边界面缩合制备具有高分子量的芳族聚碳酸酯的方法 其中将链式阻塞剂的组分混合在静态混合器中以形成细分散体,使它们在停留区中与活塞流反应并重复这些步骤至少一次。