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    • 3. 发明授权
    • Dirt pickup resistant coating binder and coatings
    • 防污涂层粘合剂和涂料
    • US06258887B1
    • 2001-07-10
    • US09450580
    • 1999-11-30
    • James Keith BardmanRalph Craig EvenMark Stephen FrazzaYili GuoRobert KrasnanskyRosemarie Palmer Lauer
    • James Keith BardmanRalph Craig EvenMark Stephen FrazzaYili GuoRobert KrasnanskyRosemarie Palmer Lauer
    • C08J300
    • C08F265/06C08F263/04C08F265/02C09D151/003C08L2666/02
    • A multi-stage aqueous emulsion-polymer suitable for use in dirt pickup resistant coatings and coatings containing the polymer are provided. The multi-stage aqueous emulsion polymer includes (i) a first polymer including at least one nonionic copolymerized monoethylenically unsaturated monomer, from 0.5% to 7% of a copolymerized monoethylenically unsaturated ionic monomer, based on the weight of the first polymer, and from 0% to 1.0%, based on the weight of the first polymer, of a copolymerized multi-ethylenically unsaturated monomer, the first polymer having a Tg of 15° C. to 105° C.; and (ii) a second polymer comprising at least one nonionic copolymerized monoethylenically unsaturated monomer, from 0% to 2% of a copolymerized monoethylenically unsaturated ionic monomer, and from 0.25% to 6%, based on the weight of the second polymer, copolymerized multi-ethylenically unsaturated monomer, the second polymer having a Tg of −55° C. to 30° C., the second polymer having a different composition than the first copolymer, and the second polymer being from 25% to 75% of the total weight of the first polymer and the second polymer, based on dry polymer weights.
    • 提供了适用于防尘涂层和含有聚合物的涂层的多级水性乳液聚合物。 多级水性乳液聚合物包括(i)包含至少一种非离子共聚单烯属不饱和单体的第一聚合物,基于第一聚合物重量的0.5%至7%的共聚单烯属不饱和离子单体,和0 基于第一聚合物的重量计,共聚多烯属不饱和单体的百分比至1.0%,第一聚合物的Tg为15℃至105℃; 和(ii)包含至少一种非离子共聚单烯属不饱和单体,0%至2%共聚单烯属不饱和离子单体和基于第二聚合物重量的0.25%至6%的第二聚合物,共聚多 烯属不饱和单体,第二聚合物的Tg为-55℃至30℃,第二聚合物的组成不同于第一共聚物,第二聚合物的总重量为25%至75% 的第一聚合物和第二聚合物,基于干聚合物重量。
    • 5. 发明申请
    • Aqueous multistage emulsion polymer composition
    • 水性多级乳液聚合物组合物
    • US20050027079A1
    • 2005-02-03
    • US10887261
    • 2004-07-08
    • Rosemarie Palmer LauerJennifer Petoff
    • Rosemarie Palmer LauerJennifer Petoff
    • C08F2/22C08F4/32C08F20/12C08F265/06C09D133/06C08F4/00
    • C08F20/12C08F2/22C08F265/06C09D133/06
    • An aqueous multistage emulsion polymer formed by the free radical polymerization in at least two stages of, in each stage, at least one ethylenically unsaturated nonionic acrylic monomer, the polymer in two of the stages having glass transition temperatures (Tg) differing by at least 10 ° C.; the polymerization, in at least one stage, being effected in the presence of 0.01-1.0%%, by weight based on the dry weight of the stage polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms, preferably t-amyl hydroperoxide, is provided. Also provided is a method for preparing the aqueous multistage emulsion polymer, an aqueous coating composition including the aqueous multistage emulsion polymer and a method for treating a substrate with the aqueous coating composition.
    • 通过自由基聚合形成的水性多级乳液聚合物,其在至少两个阶段中,在每个阶段中至少一种烯属不饱和非离子丙烯酸单体,所述两个阶段中的聚合物的玻璃化转变温度(Tg)至少为10 C。; 在至少一个阶段中的聚合在基于载体聚合物,叔烷基氢过氧化物,叔烷基过氧化物或叔烷基过酸酯的干重的0.01-1.0 %%的存在下进行,其中 t-烷基包括至少5个碳原子,优选叔戊基过氧化氢。 还提供了一种制备含水多阶段乳液聚合物的方法,包括含水多层乳液聚合物的水性涂料组合物和用水性涂料组合物处理基材的方法。