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. 25, 2025
Filed:
Mar. 10, 2020
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 145/14 (2006.01); C08L 33/08 (2006.01); C08L 33/10 (2006.01); C10M 169/04 (2006.01); C10N 20/00 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01); C10N 40/25 (2006.01);
U.S. Cl.
CPC ...
C08L 33/08 (2013.01); C08L 33/10 (2013.01); C10M 145/14 (2013.01); C10M 169/041 (2013.01); C10N 2020/04 (2013.01); C10N 2020/069 (2020.05); C10N 2020/071 (2020.05); C10N 2030/02 (2013.01); C10N 2040/25 (2013.01);
Abstract
Polyalkyl(meth)acrylate based polymers which include straight chained Calkyl(meth)acrylates and have an average carbon number of 7.0 to 7.5 and a weight-average molecular weight of 300,000 g/mol or greater are a useful component for a lubricant composition. Furthermore, lubricant compositions containing such polymers show improved high temperature-high shear performance, especially in engine oil (EO) compositions.