Colored metallic pigment, process for producing the same, and coating composition and cosmetic preparation containing said colored metallic pigment

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United States of America Patent

PATENT NO 7998266
APP PUB NO 20090017082A1
SERIAL NO

12279306

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer. In the colored metallic pigment, the metal layer preferably comprises at least one metal selected from Sn, Pd, Pt and Au. The metallic particle preferably comprises at least one metal selected from Cu, Ni and Ag.

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Patent Owner(s)

  • TOYO ALUMINIUM KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashizume, Yoshiki Osaka, JP 29 296
Minamiyama, Hideaki Osaka, JP 7 29
Morimitsu, Taro Osaka, JP 10 101
Nakamura, Masakazu Osaka, JP 80 2892
Nakao, Takayuki Osaka, JP 65 317

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