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AssigneeJGC Catalysts & Chemocals Ltd.
InventorsTakumi Miyazaki, Hirokazu Tanaka
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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.
Spherical composite particles having an average particle diameter in a range from 1.1 to 100 μm, and formed of inorganic particles having an average particle diameter in a range from 5 to 600 nm, and resin particles joined with the inorganic particles and having an average particle diameter substantially same as that of the inorganic particle and in a range from 10 to 500 nm, said resin particles being formed of a resin having elasticity with 100% modulus in tension in a range from 200 to 3000 N/cm2.
A method of manufacturing spherical composite particles comprising:
Dependencies are inferred from the claim text.