Patent · US Active

Method for the improved oxidation of secondary amine groups

US11001659B1 · kind B1 · utility

0Cited by

10References

11Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Christian Meier · Darmstadt, DE
Michael Flittner · Mömbris, DE
Christine Körner · Aschaffenburg, DE
Michael Korell · Bochum, DE
Jörn Klaus Erich WOLF · Essen, DE

Key dates

Filing date	Aug 31, 2017
Grant date	May 11, 2021
Priority date	—
Expiry date	Oct 31, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.