Polymer dispersion
    5.
    发明授权
    Polymer dispersion 有权
    聚合物分散体

    公开(公告)号:US09005397B2

    公开(公告)日:2015-04-14

    申请号:US13059874

    申请日:2009-08-19

    摘要: The invention relates to an aqueous polymer dispersion comprising an anionic water-soluble dispersion polymer comprising in polymerized form a monomer mixture comprising (i) one or more anionic monomers, (ii) a first non-ionic vinyl monomer which is acrylamide, and (iii) at least one second non-ionic vinyl monomer; a water-soluble salt and a stabilizer, wherein the water soluble salt is present in an amount of at least 2.0% by weight, based on the total weight of the dispersion. The invention further relates to a process for producing the aqueous polymer dispersion, use of the aqueous polymer dispersion as a flocculating agent in papermaking or for water purification, and a process for producing paper which comprises adding one or more drainage and retention aids comprising the aqueous polymer dispersion to an aqueous suspension containing cellulosic fibers and then dewatering the obtained suspension.

    摘要翻译: 本发明涉及包含阴离子水溶性分散体聚合物的水性聚合物分散体聚合物,其包含聚合形式的单体混合物,所述单体混合物包含(i)一种或多种阴离子单体,(ii)作为丙烯酰胺的第一非离子乙烯基单体和(iii )至少一种第二非离子乙烯基单体; 水溶性盐和稳定剂,其中基于分散体的总重量,水溶性盐的存在量为至少2.0重量%。 本发明还涉及一种制备聚合物水分散体的方法,在造纸或水净化中使用聚合物水分散体作为絮凝剂,以及生产纸的方法,该方法包括加入一种或多种包含水性 聚合物分散体到含有纤维素纤维的水性悬浮液中,然后使得到的悬浮液脱水。

    POLYMER DISPERSION
    6.
    发明申请
    POLYMER DISPERSION 有权
    聚合物分散体

    公开(公告)号:US20110174453A1

    公开(公告)日:2011-07-21

    申请号:US13059874

    申请日:2009-08-19

    摘要: The invention relates to an aqueous polymer dispersion comprising an anionic water-soluble dispersion polymer comprising in polymerized form a monomer mixture comprising (i) one or more anionic monomers, (ii) a first non-ionic vinyl monomer which is acrylamide, and (iii) at least one second non-ionic vinyl monomer; a water-soluble salt and a stabilizer, wherein the water soluble salt is present in an amount of at least 2.0% by weight, based on the total weight of the dispersion. The invention further relates to a process for producing the aqueous polymer dispersion, use of the aqueous polymer dispersion as a flocculating agent in papermaking or for water purification, and a process for producing paper which comprises adding one or more drainage and retention aids comprising the aqueous polymer dispersion to an aqueous suspension containing cellulosic fibres and then dewatering the obtained suspension.

    摘要翻译: 本发明涉及包含阴离子水溶性分散体聚合物的水性聚合物分散体聚合物,其包含聚合形式的单体混合物,所述单体混合物包含(i)一种或多种阴离子单体,(ii)作为丙烯酰胺的第一非离子乙烯基单体和(iii )至少一种第二非离子乙烯基单体; 水溶性盐和稳定剂,其中基于分散体的总重量,水溶性盐的存在量为至少2.0重量%。 本发明还涉及一种制备聚合物水分散体的方法,在造纸或水净化中使用聚合物水分散体作为絮凝剂,以及生产纸的方法,该方法包括加入一种或多种包含水性 聚合物分散体到含有纤维素纤维的水性悬浮液中,然后使得到的悬浮液脱水。