SURFACE-COATED POWDER AND COSMETIC CONTAINING SAID POWDER

WIPO Patent Application WO/2005/059010

A1

A surface-coated powder which comprises a powder coated with a metal oxide-organopolysiloxane hybrid wherein an organopolysiloxane and a metal oxide form a composite at a molecular level. The surface-coated powder is prepared by coating a powder with a metal oxide-organopolysiloxane hybrid sol, to thereby form a thin film of the above hybrid on the surface of the powder. The metal oxide of the above metal oxide-organopolysiloxane hybrid is preferably one or more of metal oxides selected from among a titanium oxide, a zirconium oxide and silicon dioxide. The above metal oxide-organopolysiloxane hybrid can have a controlled water repellency by the adjustment of the proportion of the metal oxide to the organopolysiloxane, and thus the water repellency of the powder can be controlled with ease by the adjustment of the above proportion. A cosmetic containing the above surface-coated powder is excellent in natural appearance and in the feeling during the practice of application.

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ISHIMORI TOSHIHIRO (JP)
NAKADE MASATO (JP)

PCT/JP2004/019267

June 30, 2005

December 15, 2004

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KOSE CORP (JP)
ISHIMORI TOSHIHIRO (JP)
NAKADE MASATO (JP)

A61K8/11; A61K8/891; A61Q1/02; A61Q17/04; C08G77/04; C08G77/58; C08G79/00; C09D183/14; (IPC1-7): C08G79/00; A61K7/02; A61K7/44; C08G77/04

JP2003095655A	2003-04-03
JP2002348380A	2002-12-04
JP2000256133A	2000-09-19
JPH11335240A	1999-12-07
JPH0565416A	1993-03-19

Tanaka, Hiroshi (19-14 Toranomon 1-chom, Minato-ku Tokyo, JP)

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