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:
Dec. 10, 2019
Filed:
Jan. 10, 2018
Applicant:
Lanxess Deutschland Gmbh, Cologne, DE;
Inventors:
Werner Obrecht, Moers, DE;
Sarah David, Dormagen, DE;
Qingchun Liu, Qingdao Shandong, CN;
Zhenli Wei, Qingdao Shandong, CN;
Assignee:
ARLANXEO DEUTSCHLAND GMBH, Dormagen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08C 19/02 (2006.01); B01J 31/22 (2006.01); B01J 31/02 (2006.01); B01J 31/18 (2006.01); B01J 31/24 (2006.01); C08C 19/00 (2006.01);
U.S. Cl.
CPC ...
B01J 31/2295 (2013.01); B01J 31/0204 (2013.01); B01J 31/1805 (2013.01); B01J 31/2208 (2013.01); B01J 31/2273 (2013.01); B01J 31/2278 (2013.01); B01J 31/2404 (2013.01); C08C 19/02 (2013.01); B01J 2231/543 (2013.01); B01J 2231/641 (2013.01); B01J 2231/645 (2013.01); B01J 2531/821 (2013.01); B01J 2531/825 (2013.01); B01J 2540/22 (2013.01); B01J 2540/34 (2013.01); B01J 2540/62 (2013.01); C08C 2019/09 (2013.01);
Abstract
This invention relates to novel catalyst compositions based on Ruthenium- or Osmium-based complex catalysts of the Grubbs-Hoveyda, Grela or Zhan type and specific co-catalysts comprising at least one vinyl group, pref. ethyl vinyl ether, and to a process for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions, preferably with a preceding metathesis step using the same complex catalyst as in the hydrogenation step.