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:
May. 11, 2021
Filed:
Aug. 31, 2017
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Christian Meier, Darmstadt, DE;
Michael Flittner, Mömbris, DE;
Christine Körner, Aschaffenburg, DE;
Michael Korell, Bochum, DE;
Jörn Klaus Erich Wolf, Essen, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/34 (2006.01); H01M 4/60 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
C08F 220/34 (2013.01); H01M 4/604 (2013.01); H01M 10/0525 (2013.01); C08F 2800/20 (2013.01); C08F 2810/00 (2013.01);
Abstract
The present invention relates to a process for oxidizing secondary amino groups to the corresponding radical nitroxyl groups within a polymer comprising, for example, 2,2,6,6-tetramethylpiperidinyl units. The process assures a particularly high degree of oxidation.