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:
Aug. 20, 2024
Filed:
Apr. 28, 2021
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Katrin Schöller, Bad Soden, DE;
Sarah Lippert, Darmstadt, DE;
Wolfgang Tschepat, Darmstadt, DE;
Fabian Ziegler, Darmstadt, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/18 (2006.01); C10M 145/14 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/00 (2006.01);
U.S. Cl.
CPC ...
C08F 220/18 (2013.01); C10M 145/14 (2013.01); C10M 2203/1025 (2013.01); C10M 2209/084 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/68 (2020.05);
Abstract
A novel process can be used for the preparation of polyalkyl (meth)acrylate polymers with improved compositional distribution, which leads to better producibility, solubility, and improved performance of the polymers in lubricant compositions, especially in engine oil formulations.