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:
Aug. 05, 2025
Filed:
Oct. 10, 2019
Centrotherm International Ag, Blaubeuren, DE;
Manuel Clauss, Ostfildern, DE;
Andreas Keller, Opfingen, DE;
Erik Frank, Dornstadt, DE;
Volker Bauch, Zell unter Aichelberg, DE;
Frank Hermanutz, Leonberg, DE;
Michael R. Buchmeiser, Remshalden, DE;
Gunter Fauth, Urbach, DE;
CENTROTHERM INTERNATIONAL AG, Blaubeuren, DE;
Abstract
A process for stabilizing precursor fibers for the production of carbon fibers is disclosed. The process comprises the following steps: continuously introducing, passing and removing said precursor fibers into, through and from a process chamber; establishing a predetermined process gas atmosphere different in composition from ambient air in said at least one process chamber, said process gas atmosphere containing at least one of a reactive component and a catalyst having a predetermined partial pressure; while said precursor fibers are in said process chamber, heating the precursor fibers to at least a first temperature and maintaining said first temperature for a predetermined period of time.