USE OF SILICON-CONTAINING PARTICLES FOR PROTECTION FROM UV RADIATION, PROCESS FOR PRODUCTION THEREOF AND FORMULATIONS COMPRISING THEM

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United States of America Patent

APP PUB NO 20160151254A1
SERIAL NO

14951034

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Abstract

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Silicon-containing particles are used for protection of human cells from electromagnetic radiation in the UV range and optionally in the visible as far as the IR range, where the particles preferably take the form of clusters of primary particles having a particle size in the range from 5 to 100 nm. A particular advantage is the possibility of matching the absorption of the electromagnetic radiation to the wavelength region to be absorbed in a defined manner via the particle size. The silicon-containing particles can be used for biocompatible and biodegradable UV protection in cosmetic or medical formulations, such as preferably a sunscreen, or else in a cosmetic formulation for the UV protection of hair.

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Patent Owner(s)

Patent OwnerAddress
EVONIK DEGUSSA GMBHRELLINGHAUSER STRASSE 1-11 ESSEN 45128

International Classification(s)

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  • 2015 Application Filing Year
  • A61K Class
  • 16157 Applications Filed
  • 11882 Patents Issued To-Date
  • 73.55 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KROELL, Michael Linsengericht, DE 21 129
LANG, Juergen Erwin Karlsruhe, DE 28 91
UEHLENBRUCK, Goswin Oberursel, DE 8 9

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges6209860894426710349291291182201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +0500100015002000250030003500400045005000550060006500700075008000850090009500

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