Process for working up aqueous dispersions of fluorinated thermoplastic
    3.
    发明授权
    Process for working up aqueous dispersions of fluorinated thermoplastic 失效
    处理氟化热塑性塑料的水分散体的方法

    公开(公告)号:US5463021A

    公开(公告)日:1995-10-31

    申请号:US132741

    申请日:1993-10-06

    CPC分类号: C08J3/16 C08F6/24 C08J2327/12

    摘要: The aqueous dispersions from the polymerization of fluorinated thermoplastics can be worked up to a high value product (e.g., substantially purified of cations resulting from the polymerization) in a continuous manner, if the cations are first removed from the aqueous dispersion, the dispersion is then compressed and decompressed through small openings, thereby being coagulated, the coagulated phase is washed on a filter and partially dewatered, subsequently broken up to give a free-flowing product and this is dried to the desired residual moisture content. Qualitatively high value products, which can be directly fed to a melt extruder, are thus obtained with high throughputs.

    摘要翻译: 如果首先从水性分散体中除去阳离子,则氟化热塑性塑料的聚合的水分散体可以以连续的方式被加工成高价值的产物(例如,基本上纯化的由聚合产生的阳离子),然后分散体 通过小开口压缩和减压,由此凝结,凝结相在过滤器上洗涤并部分脱水,随后破碎以产生自由流动的产物,并将其干燥至所需的残留水分含量。 因此可以以高产量获得可直接进料到熔体挤出机的定性高价值产品。