Invention Grant
US07695737B2 Spherical composite particles and cosmetics with the particles blended therein 失效
球形复合颗粒和化妆品,其中混合有颗粒

Spherical composite particles and cosmetics with the particles blended therein
Abstract:
Spherical composite particles are formed of inorganic fine particles and resin fine particles joined together, and an average particle diameter is in the range from 1.1 to 100 μm, in which the average particle diameter of the inorganic fine particles is in the range from 5 to 600 nm and the average particle diameter of the resin fine particles is in the range from 10 to 500 nm. The inorganic fine particle and the resin fine particle have almost the same size, and the hardness, softness, and adaptability when spreading on a skin can finely be adjusted as desired in a wide range according to the contact feeling required for the cosmetics in which the particles are blended.
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