Organofunctional silicon particles, process for the production thereof and use thereof
AssigneeEvonik Degussa GmbH
InventorsJuergen Erwin LANG, Bodo FRINGS, Michael KROELL, Goswin UEHLENBRUCK
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Abstract
Organofunctional silicon particles are covalently functionalized on their surface with at least one organic compound, for example a plurality of —O—(C1-C48)-alkyl compounds. The functionalization of the surface of the silicon particles makes it possible to adjust the properties of fluids in terms of their profile of properties by addition of the modified silicon particles. For instance, the alkoxy-functionalized silicon particles may preferably be added to a motor oil as additives for reducing viscosity.
Claims19
Organofunctional silicon particles, comprising:
- silicon particles which are covalently functionalized on their surface with at least one organic compound.
A process for producing organofunctional silicon particles covalently functionalized on their surface with at least one organic compound, comprising:
- a) decomposing at least one gaseous or gaseous-at-elevated-temperature silicon compound
- b) in the presence of a diluent gas in a substantially oxygen-free atmosphere in plasma or under thermal conditions, and
- c) immediately introducing the silicon particles formed into at least one fluid organic starting compound or into a mixture comprising the at least one organic starting compound.
Dependencies are inferred from the claim text.