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:
Jun. 13, 2023
Filed:
Dec. 02, 2019
Applicant:
Arlanxeo Deutschland Gmbh, Dormagen, DE;
Inventors:
Karola Schneiders, Bergisch Gladbach, DE;
Karsten Knebel, Erkelenz, DE;
Volker Wege, Neuss, DE;
Jurgen Kirsch, Leverkusen, DE;
Assignee:
ARLANXEO DEUTSCHLAND GMBH, Dormagen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 31/22 (2006.01); B01J 31/02 (2006.01); B01J 31/18 (2006.01); B01J 31/24 (2006.01); C08C 19/02 (2006.01); C08C 19/08 (2006.01); C08C 19/00 (2006.01);
U.S. Cl.
CPC ...
B01J 31/2278 (2013.01); B01J 31/0202 (2013.01); B01J 31/181 (2013.01); B01J 31/2226 (2013.01); B01J 31/2404 (2013.01); C08C 19/02 (2013.01); C08C 19/08 (2013.01); B01J 2231/54 (2013.01); B01J 2531/821 (2013.01); C08C 2019/09 (2013.01);
Abstract
The present invention relates to a catalyst system containing a metathesis catalyst containing at least one N-heterocyclic carbene ligand and at least one phenolic compound and to a process for performing the metathesis on nitrile rubbers for reducing their molecular weight using a metathesis catalyst containing at least one N-heterocyclic carbene ligand (NHC ligand) and at least one phenolic compound.