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    • 90. 发明授权
    • Polymer composite particle comprising metal oxide and silicone and/or fluorine and method of producing the same
    • 包含金属氧化物和硅氧烷和/或氟的聚合物复合颗粒及其制备方法
    • US07153573B2
    • 2006-12-26
    • US10630741
    • 2003-07-31
    • Makoto TsujiHiromi NambuMakoto InoueSatoshi SugawaraYukio Inomata
    • Makoto TsujiHiromi NambuMakoto InoueSatoshi SugawaraYukio Inomata
    • B32B5/16
    • A61Q17/04A61K8/0241A61K8/27A61K8/29A61K2800/412A61K2800/63A61K2800/651C08F292/00C08L51/10Y10T428/25Y10T428/256Y10T428/2991Y10T428/2998C08L2666/02
    • The invention provides a polymer composite particle having superb blending stability even in a W/O emulsion cosmetic, a highly effective ultraviolet protection effect and a good feeling in use. The invention also relates to a method of producing the polymer composite particle and a cosmetic composition containing the polymer composite particle. A preferred polymer composite particle contains a metal oxide coated with a silicone and/or fluorine compound and has an average particle diameter of 1 μm or less, wherein the polymer composite particle is obtained by polymerizing a crosslinking agent with a vinyl monomer contained in an amount of 25% by weight based on 100% by weight of the sum of total of all the monomers and crosslinking agent and wherein the vinyl monomer has a solubility parameter calculated by the Fedors method of less than about 8.9. A preferred cosmetic composition may contain (A) a microparticle metal oxide having an average primary particle diameter of from 0.001 to 0.1 μm, and (B) a flake zinc oxide having an average primary particle size of from 0.1 μm to 1 μm and an average thickness of from 0.01 μm to 0.2 μm, which provides ultraviolet protection ability and visible-light transmittance.
    • 本发明提供即使在W / O乳液化妆品中也具有优异的混合稳定性,高效紫外线防护效果和良好的使用感的聚合物复合体。 本发明还涉及一种制备聚合物复合颗粒的方法和含有聚合物复合颗粒的化妆品组合物。 优选的聚合物复合颗粒包含涂覆有硅氧烷和/或氟化合物的金属氧化物,其平均粒径为1μm以下,其中,所述聚合物复合颗粒是通过使交联剂与含有所述乙烯基单体的量聚合而获得的 基于100重量%的所有单体和交联剂的总和的总和为25重量%,并且其中乙烯基单体具有通过Fedors方法计算的溶解度参数小于约8.9。 优选的化妆品组合物可以含有(A)平均一次粒径为0.001〜0.1μm的微粒金属氧化物,(B)平均一次粒径为0.1〜1μm的鳞片状氧化锌,平均粒径为 厚度从0.01μm到0.2μm,提供紫外线保护能力和可见光透射率。