Nanoparticulate UV protectant with silicon dioxide coating
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United States of America Patent
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Jun 24, 2014
Grant Date -
Sep 3, 2009
app pub date -
Apr 30, 2009
filing date -
Jul 21, 2003
priority date (Note) -
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Abstract
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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