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:
Jan. 06, 2026
Filed:
Apr. 20, 2021
Evonik Operations Gmbh, Essen, DE;
Uwe Numrich, Gross-Zimmern, DE;
Stefan Bade, Michelbach le Haut, FR;
Nicolas Marion, Saint-Louis, FR;
Matthias Koebel, Brüttisellen, CH;
Wim Malfait, Zürich, CH;
Stefanie Hauser, Näfels, CH;
Nicolas Vogel, Horgen, CH;
Evonik Operations GmbH, Essen, DE;
Abstract
The present invention relates to a process for producing a hydrophobized silica aerogel, comprising the following steps: a) preparing a hydrophobized silica gel comprising alkoxy groups; b) drying of the hydrophobized silica gel obtained in step a); c) treatment of the product obtained in step b) with a gas mixture comprising water and a base or an acid. A hydrophobized silica aerogel with a reduced alkoxy group content, suitable for thermal insulation applications, is also provided.