Nanoparticulate UV protectant with silicon dioxide coating

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United States of America Patent

PATENT NO 8758501
APP PUB NO 20090220441A1
SERIAL NO

12432949

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Abstract

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The present invention relates to nanoparticulate UV protectants which are obtainable by hydrothermal treatment of a nanoparticulate metal oxide and subsequent application of a silicon dioxide coating, and to the preparation and use thereof. The present invention furthermore relates to novel compositions, in particular for topical application, which are intended, in particular, for light protection of the skin and/or of the hair against UV radiation, and to the use thereof in the above-mentioned cosmetic application.

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Patent Owner(s)

Patent OwnerAddress
MERCK PATENT GMBHDARMSTADT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirthe, Bernd Toenisvorst, DE 10 89
John, Stephan Duisburg, DE 5 19
Pfluecker, Frank Darmstadt, DE 17 63
Saenger, Heike Moers, DE 2 14

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