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    • 2. 发明授权
    • Coating composition
    • 涂料组成
    • US06797328B2
    • 2004-09-28
    • US10349906
    • 2003-01-23
    • Albert Benner BrownRalph Craig EvenDennis Paul LorahAlvin Michael MauriceRobert Victor SloneXun Tang
    • Albert Benner BrownRalph Craig EvenDennis Paul LorahAlvin Michael MauriceRobert Victor SloneXun Tang
    • B05D300
    • C08F4/34C08F20/12
    • An aqueous composition suitable for use, when dry, as an improved coating is provided including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from greater than 20° C. to 80° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method of preparing the emulsion polymer, a method for providing a coated substrate wherein the coating contains the emulsion polymer having a Tg from −20° C. to 80° C., and a method for improving the scrub resistance of a coating by including the emulsion polymer having a Tg from −20° C. to 80° C. are also provided.
    • 提供适用于干燥时作为改进涂层的水性组合物,包括水性乳液聚合物,所述聚合物的玻璃化转变温度(Tg)大于20℃至80℃,由自由基形成 至少一种烯键式不饱和非离子丙烯酸单体的聚合,基于聚合物的总重量,基于聚合物总重量的0.01-1.0%的烯键式不饱和酸单体的总重量为0-7.5% 叔烷基过氧化氢,叔烷基过氧化物或叔烷基过酸酯,其中叔烷基包括至少5个碳原子和任选的至少一种其它氧化剂。 一种制备乳液聚合物的方法,一种提供涂覆基质的方法,其中该涂层含有-20℃至80℃的Tg的乳液聚合物,以及一种通过包括以下步骤改善涂层的耐擦洗性的方法: 还提供了具有-20℃至80℃的Tg的乳液聚合物。