Polymer dispersions and sound deadener compositions with emulsion polymer from two-stage preparation
    3.
    发明授权
    Polymer dispersions and sound deadener compositions with emulsion polymer from two-stage preparation 有权
    具有乳液聚合物的聚合物分散体和消声剂组合物,用于两步制备

    公开(公告)号:US09536513B2

    公开(公告)日:2017-01-03

    申请号:US14910607

    申请日:2014-07-25

    Applicant: BASF SE

    Abstract: A description is given of an aqueous polymer dispersion comprising a polymer which is obtainable by emulsion polymerization from a monomer mixture comprising as hydrophilic monomers ethoxylated (meth)acrylate monomer, acid monomer, and C1 to C20 hydroxyalkyl(meth)acrylate; and also at least one hydrophobic principal monomer, selected from C1 to C20 alkyl(meth)acrylates and vinylaromatics; and also, optionally, further monomers. This polymer is preparable by at least two-stage emulsion polymerization, where in a first polymerization stage the predominant fraction or the entire amount of the hydrophilic monomers is used, and in a later polymerization stage the predominant fraction or the entire amount of the hydrophobic monomers is used. The polymer dispersion is a suitable binder for aqueous particle dispersions, more particularly of sound deadener compositions, which comprise inorganic and optionally also organic particulate solids. Also described is a method for damping oscillations or vibrations of vehicle components.

    Abstract translation: 对含有聚合物的水性聚合物分散体进行说明,该聚合物可通过从包含作为亲水性单体乙氧基化(甲基)丙烯酸酯单体,酸性单体和C1-C20羟烷基(甲基)丙烯酸酯)的单体混合物进行乳液聚合得到。 还有至少一种选自C 1 -C 20烷基(甲基)丙烯酸酯和乙烯基芳烃的疏水性主要单体; 以及任选的另外的单体。 该聚合物可通过至少两步乳液聚合制备,其中在第一聚合阶段使用主要部分或全部量的亲水单体,并且在稍后的聚合阶段中,主要部分或全部量的疏水单体 用来。 聚合物分散体是含水颗粒分散体的合适的粘合剂,更特别是包含无机和有选择的有机颗粒固体的消声组合物。 还描述了一种用于阻尼车辆部件的振动或振动的方法。

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