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    • 77. 发明公开
    • AQUEOUS POLYMER GRAFTED LATEX
    • 水性聚合物接枝乳胶
    • EP2882786A1
    • 2015-06-17
    • EP13770824.4
    • 2013-09-23
    • Rohm and Haas Company
    • CRESCIMANNO, Stephen A.
    • C08F265/02C08F265/06C08F2/22
    • C08F220/58C08F2/001C08F2/10C08F2/22C08F220/06C08F265/02C08F265/06C08F2220/585
    • The present invention provides aqueous multistage copolymers, preferably, all acrylic and allylic or all acrylic copolymers, having as the outermost stage an acid functional, preferably, carboxyl or carboxylate functional, aqueous solution polymer and as the one or more remaining stage(s) a vinyl emulsion polymer, wherein the vinyl emulsion polymer stage(s) in the multistage copolymer comprises 5 wt. % or less of hydrophilic monomer, based on the total weight of monomers used to make the vinyl emulsion polymer stage(s). The multistage copolymer enables incorporation of a much higher amount of hydrophilic monomer into a vinyl emulsion copolymer. In addition, are methods of methods of making the multistage copolymers are provided.
    • 本发明提供含水多阶段共聚物,优选所有丙烯酸和烯丙基或全部丙烯酸类共聚物,其具有酸官能的,优选羧基或羧酸酯官能的水溶液聚合物作为最外层,以及作为一个或多个剩余的一个或多个阶段 乙烯基乳液聚合物,其中基于用于制备乙烯基乳液聚合物阶段的单体的总重量,多阶段共聚物中的乙烯基乳液聚合物阶段包含5重量%或更少的亲水单体。 多阶段共聚物能够将更高量的亲水单体引入乙烯基乳液共聚物中。 此外,提供了制造多阶段共聚物的方法。