Invention Grant
- Patent Title: Spherical composite particles and cosmetics with the particles blended therein
- Patent Title (中): 球形复合颗粒和化妆品,其中混合有颗粒
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Application No.: US10379720Application Date: 2003-03-06
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Publication No.: US07695737B2Publication Date: 2010-04-13
- Inventor: Takumi Miyazaki , Hirokazu Tanaka
- Applicant: Takumi Miyazaki , Hirokazu Tanaka
- Applicant Address: JP Kawasaki-shi, Kanagawa-ken
- Assignee: JGC Catalysts & Chemocals Ltd.
- Current Assignee: JGC Catalysts & Chemocals Ltd.
- Current Assignee Address: JP Kawasaki-shi, Kanagawa-ken
- Agent Manabu Kanesaka
- Priority: JP2000-064117 20000308
- Main IPC: A61K9/14
- IPC: A61K9/14 ; C08K3/10

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.
Public/Granted literature
- US20030215474A1 Spherical composite particles and cosmetics with the particles blended therein Public/Granted day:2003-11-20
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