The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2017
Filed:
Nov. 24, 2015
Juergen Erwin Lang, Karlsruhe, DE;
Hartwig Rauleder, Rheinfelden, DE;
Julia Lyubina, Hanau, DE;
Janaina Marinas Pérez, Murg, DE;
Juergen Erwin Lang, Karlsruhe, DE;
Hartwig Rauleder, Rheinfelden, DE;
Julia Lyubina, Hanau, DE;
Janaina Marinas Pérez, Murg, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
Hollow bodies having a silicon-comprising shell, are produced by, in a gas comprising at least one silane of the general formula SiHXwith n=1 to 4, m=0 to 2n+2 and X=halogen, (a) generating a non-thermal plasma by an AC voltage of frequency f, or operating a light arc, or introducing electromagnetic energy in the infrared region into the gas, giving a resulting phase which (b) is dispersed in a wetting agent and distilled, and then (c) the distillate is contacted at least once with a mixture of at least two of the substances hydrofluoric acid, nitric acid, water, giving a solid residue comprising hollow bodies having a silicon-comprising shell after the conversion reaction of the distillate with the mixture has abated or ended.