Working up of polymer synthesis solutions
    5.
    发明授权
    Working up of polymer synthesis solutions 失效
    加工聚合物合成溶液

    公开(公告)号:US06716933B2

    公开(公告)日:2004-04-06

    申请号:US10196022

    申请日:2002-07-16

    IPC分类号: C08G6400

    CPC分类号: C08F6/10 C08G64/40

    摘要: The present invention relates to a process for working up solutions of polymers in organic solvents contaminated by alkaline constituents, using homogeneously soluble acids, especially by the introduction of an acid gas, and subsequent washing, and to the polymers so obtainable, which are distinguished by the fact that, on treatment with moist heat (sterilisation), only few defects caused by decomposition are formed, to the use thereof in the production of extrudates and molded specimen, and to the extrudates and molded specimen produced from those polymers themselves.

    摘要翻译: 本发明涉及使用均匀溶解的酸,特别是通过引入酸性气体和随后的洗涤以及可获得的聚合物来处理聚合物在被碱性成分污染的有机溶剂中的溶液的方法以及可获得的聚合物, 在湿热处理(灭菌)中,形成仅有少量由分解引起的缺陷,用于生产挤出物和模塑试样,以及由这些聚合物本身制备的挤出物和模塑试样。