COMPOSITE POWDER CONTAINING ULTRAVIOLET LIGHT ABSORBER AND COSMETIC CONTAINING THE SAME FORMULATED THEREIN

Title:

COMPOSITE POWDER CONTAINING ULTRAVIOLET LIGHT ABSORBER AND COSMETIC CONTAINING THE SAME FORMULATED THEREIN

Document Type and Number:

Japanese Patent JP2000044450

Kind Code:

A

Abstract:

To obtain a composite powder treated so as not to elute an ultraviolet light absorber to the skin surface, to provide a method for producing the composite powder and to obtain a cosmetic having higher safety and containing the composite powder formulated therein.

This composite powder containing an ultraviolet light absorber is produced by coating the surface of a powder with a metal oxide gel containing the ultraviolet light absorber. The metal oxide gel is prepared from a starting solution containing a metal alkoxide, e.g. tetraethoxysilane, water, an alcohol, an acid and the ultraviolet light absorber according to a sol-gel method. The composite powder containing the ultraviolet light absorber is formulated in a cosmetic in the same manner as that of a usual cosmetic to afford a cosmetic having higher safety.

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Inventors:

IHARA MIKITO
WASHIO YUTAKA
TANAKA HIROSHI

Application Number:

JP24248698A

Publication Date:

February 15, 2000

Filing Date:

July 24, 1998

Export Citation:

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Assignee:

NARIS COSMETICS CO LTD

International Classes:

A61K8/19; A61K8/00; A61K8/18; A61K8/25; A61K8/34; A61K8/58; A61Q1/00; A61Q1/02; A61Q1/12; A61Q17/04; A61Q19/00; C01B33/113; C09K3/00; (IPC1-7): A61K7/42; A61K7/00; A61K7/02; A61K7/48; C01B33/113; C09K3/00

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