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    • 1. 发明授权
    • Aqueous dispersion of polymeric particles
    • 聚合物颗粒的水分散体
    • US07939572B2
    • 2011-05-10
    • US11210207
    • 2005-08-23
    • James Keith BardmanRobert Mitchell BlankenshipJohn Michael Friel
    • James Keith BardmanRobert Mitchell BlankenshipJohn Michael Friel
    • C08F2/16
    • C08F2/18C08F2/22
    • An aqueous dispersion of polymeric particles, the particles including: from 5% to 80% by weight, based on the weight of the polymeric particles, of a first polymer including at least one copolymerized ethylenically unsaturated monomer; and, substantially encapsulating the first polymer, from 20% to 95% by weight, based on the weight of the polymeric particles, of a second polymer including at least one copolymerized ethylenically unsaturated monomer, the second polymer having a Tg of from −40° C. to 30° C., wherein at least 90 weight % of the second polymer is formed by polymerization at a temperature of from 5° C. to 65° C. is provided. The invention also relates to a process for forming the aqueous dispersion of polymeric particles and an aqueous coating composition including the aqueous dispersion of polymer particles, a method for providing a coated substrate, and the coated substrate so provided.
    • 聚合物颗粒的水分散体,所述颗粒包括:基于聚合物颗粒重量的5重量%至80重量%的包含至少一种共聚烯键式不饱和单体的第一聚合物; 和基本上包封第一聚合物的基于聚合物颗粒的重量的20重量%至95重量%的包含至少一种共聚的烯属不饱和单体的第二聚合物,第二聚合物的Tg为-40℃ 至30℃,其中通过在5℃至65℃的温度下聚合形成至少90重量%的第二聚合物。 本发明还涉及形成聚合物颗粒的水性分散体的方法和包含聚合物颗粒的水性分散体的水性涂料组合物,提供涂布的基材的方法和如此提供的涂布的基材。