Method for preparing surface-modified, nanoparticulate metal...

C - Chemistry – Metallurgy – 09 – C

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C09C 3/10 (2006.01) A61K 8/27 (2006.01) A61Q 17/04 (2006.01) C08K 3/22 (2006.01) C09C 1/04 (2006.01) C09C 1/24 (2006.01)

Patent

CA 2622363

Powdery preparations of surface-modified, nanoparticulate particles of at least one metal oxide, metal hydroxide and/or metal oxyhydroxide are disclosed, as well as a method for preparing the same and their use for cosmetic sunscreen preparations, as stabilisers in plastics and as active antimicrobial substances. Also disclosed is a method for producing aqueous suspensions of surface-modified, nanoparticulate particles of at least one metal oxide, metal hydroxide and/or metal oxyhydroxide.

L'invention concerne des préparations pulvérulentes de nanoparticules à surface modifiée d'au moins un oxyde métallique, hydroxyde métallique, et/ou hydroxyde d'oxyde métallique. Cette invention concerne également un procédé de production de ces préparations pulvérulentes, et leur utilisation dans des préparations cosmétiques antisolaires, en tant que stabilisateurs dans des matières plastiques, et en tant que substances antimicrobiennes. La présente invention se rapporte en outre à un procédé pour produire des suspensions aqueuses de nanoparticules à surface modifiée d'au moins un oxyde métallique, hydroxyde métallique, et/ou hydroxyde d'oxyde métallique.

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