IDiyas

For the Inventor, By the Inventor

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 11981877 B1

PDFFull Text
Date of Patent:
May. 14, 2024

Filed:

May. 22, 2023

Acrylate-olefin copolymers as high viscosity base fluids

Applicant:

Evonik Operations Gmbh, Essen, DE;

Inventors:

Emily Clare Schweißinger, Dortmund, DE;

Stefan Karl Maier, Ober-Ramstadt, DE;

Katja Nothdurft, Haltern am See, DE;

Yvonne Groß-Onnebrink, Raesfeld, DE;

Dieter Janßen, Gross-Umstadt, DE;

Holger Pletsch, Frankfurt, DE;

Stefan Hilf, Zwingenberg, DE;

Denise Kleinschmidt, Duesseldorf, DE;

Sebastian Babik, Duesseldorf, DE;

Assignee:

Evonik Operations GmbH, Essen, DE;

Attorney:

Grüneberg and Myers PLLC

Primary Examiner:

Prem C Singh

Assistant Examiner:

Francis C Campanell

Int. Cl.
CPC ...
C10M 145/14 (2006.01); C08F 220/18 (2006.01); C10M 169/04 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (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 ...
C10M 145/14 (2013.01); C08F 220/1808 (2020.02); C08F 220/1809 (2020.02); C10M 169/041 (2013.01); C08F 2800/20 (2013.01); C10M 2203/003 (2013.01); C10M 2209/084 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2040/04 (2013.01); C10N 2040/08 (2013.01); C10N 2040/25 (2013.01); C10N 2050/10 (2013.01);
Abstract

Acrylate-olefin copolymers and a method for the preparation of these copolymers are provided. Lubricant compositions can contain the aforementioned copolymers. The copolymers are useful 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.

Find Patent Forward Citations

Loading…