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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 11518955 B1

PDFFull Text
Date of Patent:
Dec. 06, 2022

Filed:

Mar. 18, 2020

Polyalkyl(meth)acrylates for improving fuel economy, dispersancy and deposits performance

Applicant:

Evonik Operations Gmbh, Essen, DE;

Inventors:

Katrin Schoeller, Bad Soden, DE;

Fabian Ziegler, Darmstadt, DE;

Boris Eisenberg, Heppenheim, DE;

Dmitriy Shakhvorostov, Darmstadt, DE;

Klaus Schimossek, Bensheim, DE;

Assignee:

Evonik Operations GmbH, Essen, DE;

Attorney:

Grüneberg and Myers PLLC

Primary Examiner:

Ellen M Mcavoy

Int. Cl.
CPC ...
C10M 145/14 (2006.01); C10N 20/04 (2006.01); C10N 40/25 (2006.01);
U.S. Cl.
CPC ...
C10M 145/14 (2013.01); C10M 2209/084 (2013.01); C10N 2020/04 (2013.01); C10N 2040/25 (2013.01);
Abstract

Polyalkyl(meth)acrylates contain specified amounts of long-chain alkyl (meth)acrylates and functional monomers. Lubricant compositions can contain such polyalkyl(meth)acrylates, and the polyalkyl(meth)acrylates can be used as viscosity index (VI) improvers with good fuel economy as well as soot-dispersant function. The polyalkyl(meth)acrylates can provide equal or even unproved deposits in lubricant compositions, especially in engine oil (EO) compositions.

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Schoeller, Katrin. (2022). Polyalkyl(meth)acrylates for improving fuel economy, dispersancy and deposits performance (U.S. Patent No. 11518955). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11518955

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