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. 23, 2021
Filed:
Mar. 22, 2016
Applicant:
Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E. V., Munich, DE;
Inventors:
Mats Timothy Knoop, Potsdam, DE;
Antje Lieske, Potsdam, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/44 (2006.01); C08F 2/22 (2006.01); C08F 2/04 (2006.01); C08F 220/28 (2006.01); C08F 216/18 (2006.01); D01F 6/38 (2006.01); D01D 5/08 (2006.01); D01F 9/22 (2006.01); C08K 5/00 (2006.01);
U.S. Cl.
CPC ...
D01F 6/38 (2013.01); C08F 216/18 (2013.01); C08F 220/28 (2013.01); C08F 220/44 (2013.01); C08K 5/0016 (2013.01); D01D 5/08 (2013.01); D01F 9/225 (2013.01); C08F 2/04 (2013.01); C08F 2/22 (2013.01); C08F 220/281 (2020.02);
Abstract
The invention relates to a method for the production of thermally stabilised melt-spun fibres in which polyacrilonitrile (PAN) fibres or PAN fibre precursors produced by melt-spinning are treated in an aqueous alkaline solution, comprising in addition a solvent for PAN. Likewise, the invention relates to fibres which are producible according to this method.