Method for the production of water-in-water polymer dispersions
    2.
    发明授权
    Method for the production of water-in-water polymer dispersions 有权
    水包水聚合物分散体的生产方法

    公开(公告)号:US07323510B2

    公开(公告)日:2008-01-29

    申请号:US10432624

    申请日:2001-12-01

    IPC分类号: C08K3/20

    CPC分类号: C08J3/03

    摘要: The invention relates to methods for manufacturing a water-in-water polymer dispersion containing polymer A and at least one polymer dispersant B, according to which monomers, which are dispersed in an aqueous phase containing water-soluble dispersant B, are subjected to radical polymerization, possibly following the addition of a water-soluble salt, and, after polymerisation, a water-soluble acid is added to the water-soluble and/or water-swellable polymer A obtained in this way, where the acid is added in quantities of 0.1 to 5% by weight and the salt in quantities of up to a maximum of 3% by weight, each referred to the total dispersion, and the total quantity of salt and acid amounts to a maximum of 5% by weight, referred to the total dispersion.

    摘要翻译: 本发明涉及制备包含聚合物A和至少一种聚合物分散剂B的水包水聚合物分散体的方法,根据该方法,将分散在含有水溶性分散剂B的水相中的单体进行自由基聚合 可能在加入水溶性盐之后,并且在聚合之后,向以这种方式获得的水溶性和/或水溶胀性聚合物A中加入水溶性酸,其中将酸加入到 0.1至5重量%,盐的量最多达3重量%,分别称为总分散体,盐和酸的总量最多为5重量%,称为 总分散。