POLYMER MIXTURES CONTAINING AT LEAST TWO DIFFERENT COMB POLYMERS
    6.
    发明公开
    POLYMER MIXTURES CONTAINING AT LEAST TWO DIFFERENT COMB POLYMERS 审中-公开
    含有至少两种不同梳形聚合物的聚合物混合物

    公开(公告)号:EP3219746A1

    公开(公告)日:2017-09-20

    申请号:EP16160520.9

    申请日:2016-03-15

    Inventor: Rombola, Ottavio

    Abstract: The present invention relates to a process for preparing a polymer mixture containing at least two different comb polymers, wherein the comb polymers each have a polymer backbone having side chains attached via ester and/or amide groups, which process comprises the steps of:
    a) providing and/or preparing a reaction mixture containing at least a first base polymer bearing acid groups and a second base polymer bearing acid groups, wherein the two base polymers differ chemically;
    b) conjointly esterifying and/or amidating the two base polymers with at least one unilaterally hydroxyl-terminated side chain compound and/or with at least one unilaterally amino-terminated side chain compound to obtain at least two different comb polymers.
    The invention further relates to a polymer mixture obtainable with the process of the invention, to a mineral binder composition and to a shaped article obtainable therefrom. Further aspects relate to uses of the polymer mixture in mineral binder compositions.

    Abstract translation: 本发明涉及制备含有至少两种不同梳形聚合物的聚合物混合物的方法,其中梳形聚合物各自具有聚合物骨架,所述聚合物骨架具有经由酯和/或酰胺基团连接的侧链,所述方法包括以下步骤:a) 提供和/或制备反应混合物,所述反应混合物含有至少一种带有酸基的第一基础聚合物和带有酸基的第二基础聚合物,其中所述两种基础聚合物在化学上不同; b)将所述两种基础聚合物与至少一种单侧羟基封端的侧链化合物和/或与至少一种单侧氨基封端的侧链化合物共同酯化和/或酰胺化以获得至少两种不同的梳形聚合物。 本发明进一步涉及可用本发明的方法获得的聚合物混合物,涉及矿物粘合剂组合物和可由其获得的成型制品。 其他方面涉及聚合物混合物在矿物粘合剂组合物中的用途。

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