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    • 6. 发明授权
    • Dispersion resins containing itaconic acid for improving wet abrasion resistance
    • 含有衣康酸的分散树脂用于改善耐湿磨损性
    • US06790272B1
    • 2004-09-14
    • US09623487
    • 2000-09-15
    • Cheng-Le ZhaoJoachim RoserRolf DerschRoland Baumstark
    • Cheng-Le ZhaoJoachim RoserRolf DerschRoland Baumstark
    • C09D502
    • C09D17/004C08F222/02C09D5/024C09D133/064C08L2666/54
    • The invention relates to aqueous pigment preparations containing i) at least one copolymer P of ethylenically unsaturated monomers M in the form of an aqueous polymer dispersion which contains between 0.1 and 1.5 weight %, in relation to the total weight of the copolymer P, of polymerized itaconic acid as acid monomer M1, its salts and/or anhydride, where up to 50 weight % of the itaconic acid can be substituted by another monomer having at least one acid group or a neutralized acid group, and whose glass transition temperature TG lies between −10 and +50° C.; ii) at least one inorganic pigment; iii) possibly inorganic fillers; and iv) standard additives. The invention also relates to the use of the copolymers P containing itaconic acid for improving the wet-abrasion resistance of polymer-bound coatings containing pigments.
    • 本发明涉及水性颜料制剂,其含有i)至少一种含水聚合物分散体形式的烯属不饱和单体M的共聚物P,其相对于共聚物P的总重量为0.1至1.5重量%,聚合的 衣康酸作为酸单体M1,其盐和/或酸酐,其中至多50重量%的衣康酸可以被具有至少一个酸基或中和的酸基的另一个单体取代,并且其玻璃化转变温度TG位于 -10和+ 50°C。 ii)至少一种无机颜料; iii)可能的无机填料; 和iv)标准添加剂。 本发明还涉及含有衣康酸的共聚物P用于改善含有颜料的聚合物结合涂层的耐湿耐磨性的用途。