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IRREGULAR-SHAPED MICROPARTICLES, PROCESS FOR PRODUCTION OF IRREGULAR-SHAPED MICROPARTICLES, AND COSMETICS AND RESIN COMPOSITIONS CONTAINING IRREGULAR-SHAPED MICROPARTICLES
IRREGULAR-SHAPED MICROPARTICLES, PROCESS FOR PRODUCTION OF IRREGULAR-SHAPED MICROPARTICLES, AND COSMETICS AND RESIN COMPOSITIONS CONTAINING IRREGULAR-SHAPED MICROPARTICLES
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机译:不规则形状的微粒,不规则形状的微粒的生产过程以及包含不规则形状的微粒的化妆品和树脂组合物
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摘要
PROBLEM TO BE SOLVED: To provide variant fine particles satisfactorily responding to advancement of demand in recent years such as further enhancement of optical characteristics such as total ray transmittance and light diffusion properties in a resin composition, further enhancement of feeling of usage, soft focus properties, concealment properties, durability and the like in cosmetics, to provide a method for producing the same and to provide its use.;SOLUTION: The variant fine particles each having a shape of recessed surfaces (11) of a polyhedron of a hexahedron or more as a whole are used, each of which simultaneously satisfying conditions (1) to (3): (1) an average value is the maximum diameter (L1) of the outer shape of the variant fine particle is in the range of 0.1 to 20 μm, (2) an average value of the ratio of the minimum diameter (L2)/the maximum diameter (L1) of the outer shape of the variant fine particle is in the range of 0.60 to 0.97 and (3) the ratio of the maximum diameter (m1) of the recessed surface (11)/the maximum diameter (L1) of the outer shape of the variant fine particle is in the range of 0.20 to 0.90 and the average value of the number of the recessed surfaces (11) per variant fine particle is in the range of 6 to 14.;COPYRIGHT: (C)2011,JPO&INPIT
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