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:
Mar. 10, 2020
Filed:
Jan. 14, 2016
Applicant:
Rheinisch-westfälische Technische Hochschule (Rwth) Aachen, Aachen, DE;
Inventors:
Davide Pico, Aachen, DE;
Björn Schulz, Aachen, DE;
Alexander Lüking, Aachen, DE;
Thomas Gries, Aachen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D 4/02 (2006.01); C01B 33/158 (2006.01); D01D 5/06 (2006.01); C04B 20/00 (2006.01); D01D 5/12 (2006.01); D01D 10/06 (2006.01); D21H 13/36 (2006.01); D21H 13/40 (2006.01); D21H 15/10 (2006.01); C04B 111/28 (2006.01);
U.S. Cl.
CPC ...
C01B 33/1585 (2013.01); C01B 33/158 (2013.01); C04B 20/0056 (2013.01); D01D 4/02 (2013.01); D01D 5/06 (2013.01); D01D 5/12 (2013.01); D01D 10/06 (2013.01); D21H 13/36 (2013.01); D21H 13/40 (2013.01); D21H 15/10 (2013.01); C04B 2111/28 (2013.01);
Abstract
A method for producing an inorganic silica gel fiber or aerogel fiber, comprising the following steps: a) extrusion of a gel, in particular a hydrogel or alcogel, by means of a spinneret directly into a coagulation bath to form at least one filament, b) stretching of the filament in the coagulation bath, c) regeneration of the filament by extraction from the coagulation bath, and d) supercritical drying or freeze drying in order to convert the filament into a silica fiber, in particular an aerogel fiber.