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. 11, 2025
Filed:
Jan. 18, 2023
Applicant:
Deutsche Institute Fur Textil-und Faserforschung, Denkendorf, DE;
Inventors:
Falko Abels, Roemerberg, DE;
Tomasz Cwik, Mannheim, DE;
Ronald Beyer, Winnenden, DE;
Frank Hermanutz, Leonberg, DE;
Assignee:
Technikum Laubholz GmbH, Göppingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01D 5/06 (2006.01); D01F 2/00 (2006.01); D01F 2/02 (2006.01);
U.S. Cl.
CPC ...
D01D 5/06 (2013.01); D01F 2/00 (2013.01); D01F 2/02 (2013.01);
Abstract
The invention relates to a process for the production of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process, characterized in that a) a spinning solution that contains an ionic liquid and a dissolved polymer is produced; b) said spinning solution is guided through an extruder before it is divided into fibers via a die; and c) the obtained fibers are guided via an air gap through a coagulation bath.