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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.:

US 11618797 B1

PDFFull Text
Date of Patent:
Apr. 04, 2023

Filed:

Dec. 06, 2021

Acrylate-olefin copolymers as high viscosity base fluids

Applicant:

Evonik Operations Gmbh, Essen, DE;

Inventors:

Stefan Karl Maier, Ober-Ramstadt, DE;

Dieter Janßen, Groß-Umstadt, DE;

Fabian Ziegler, Darmstadt, DE;

Katrin Schöller, Bad Soden, DE;

Stefan Hilf, Zwingenberg, DE;

Assignee:

Evonik Operations GmbH, Essen, DE;

Attorneys:

Taylor English Duma LLP

Philip P. McCann

Primary Examiner:

Ellen M McAvoy

Int. Cl.
CPC ...
C10M 107/10 (2006.01); C08F 220/18 (2006.01); C08F 210/14 (2006.01); C08F 220/56 (2006.01); C08F 222/14 (2006.01); C10M 107/28 (2006.01); C10M 143/08 (2006.01); C10M 145/14 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01); C10N 40/04 (2006.01); C10N 40/08 (2006.01); C10N 40/25 (2006.01); C10N 50/10 (2006.01);
U.S. Cl.
CPC ...
C08F 220/1808 (2020.02); C08F 210/14 (2013.01); C08F 220/56 (2013.01); C08F 222/14 (2013.01); C10M 107/10 (2013.01); C10M 107/28 (2013.01); C10M 143/08 (2013.01); C10M 145/14 (2013.01); C10M 2205/0285 (2013.01); C10M 2209/0806 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/02 (2013.01); C10N 2040/04 (2013.01); C10N 2040/08 (2013.01); C10N 2040/25 (2013.01); C10N 2050/10 (2013.01);
Abstract

The invention relates to acrylate-olefin copolymers and to a method for preparing these polymers. The present invention is also directed to lubricant compositions comprising these copolymers, and to the use of these copolymers as a lubricant additive or a synthetic base fluid in a lubricating oil composition, preferably in a gear oil composition, a transmission oil composition, a hydraulic oil composition, an engine oil composition, a marine oil composition, an industrial lubricating oil composition or in grease.

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