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:
Feb. 03, 2026
Filed:
Sep. 12, 2022
Applicant:
Borealis Ag, Vienna, AT;
Inventors:
Kerstin Koller, Wels, AT;
Christoph Burgstaller, Wels, AT;
Hermann Braun, Linz, AT;
Peter Denifl, Linz, AT;
Markus Gahleitner, Linz, AT;
Assignee:
BOREALIS GMBH, Vienna, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/44 (2006.01); C08F 10/02 (2006.01); C08J 11/16 (2006.01); C08K 3/20 (2006.01);
U.S. Cl.
CPC ...
C08F 2/44 (2013.01); C08F 10/02 (2013.01); C08J 11/16 (2013.01); C08K 3/20 (2013.01); C08J 2423/06 (2013.01);
Abstract
The present invention concerns a process for decolorizing a polyolefin composition, the process comprising the steps of a) providing a polyolefin composition comprising at least one polyolefin and at least one organic chromophore, b) mixing the polyolefin composition in a melt state at a temperature of 170 to 290° C. with an inorganic oxidizing agent, wherein the inorganic oxidizing agent is selected from the group of inorganic peroxides and hypochlorites, and c) obtaining a decolorized polyolefin composition.