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:
Apr. 28, 2020
Filed:
Aug. 28, 2017
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Katrin Schöller, Darmstadt, DE;
Stefan Maier, Mainz, DE;
Sarah Lippert, Darmstadt, DE;
Klaus Schimossek, Bensheim, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 145/14 (2006.01); C08F 290/04 (2006.01); C08F 290/12 (2006.01); C10M 105/36 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
C10M 145/14 (2013.01); C08F 290/048 (2013.01); C08F 290/128 (2013.01); C10M 105/36 (2013.01); C10M 169/041 (2013.01); C10M 2203/003 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/173 (2013.01); C10M 2207/2825 (2013.01); C10M 2209/084 (2013.01); C10N 2220/021 (2013.01); C10N 2220/025 (2013.01); C10N 2220/028 (2013.01); C10N 2220/033 (2013.01); C10N 2220/13 (2013.01); C10N 2230/02 (2013.01); C10N 2230/08 (2013.01); C10N 2230/68 (2013.01); C10N 2230/74 (2013.01); C10N 2240/10 (2013.01); C10N 2270/00 (2013.01);
Abstract
A comb polymer can be used for reducing a Noack evaporation loss of a lubricant composition, especially of an engine oil composition. Application of the comb polymer to the lubricant composition can bring about the desired reduction. The comb polymer can include specified amounts of macromonomer and alkyl acrylates. Resulting lubricant compositions can include the comb polymer.