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. 04, 2020
Filed:
Jun. 24, 2016
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Wenning W. Han, Houston, TX (US);
Pramod J. Nandapurkar, Seabrook, TX (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 111/04 (2006.01); C10M 101/02 (2006.01); C10M 107/02 (2006.01);
U.S. Cl.
CPC ...
C10M 111/04 (2013.01); C10M 101/02 (2013.01); C10M 107/02 (2013.01); C10M 2203/065 (2013.01); C10M 2205/0285 (2013.01); C10M 2205/223 (2013.01); C10N 2220/024 (2013.01); C10N 2220/025 (2013.01); C10N 2220/028 (2013.01); C10N 2230/10 (2013.01);
Abstract
Disclosed is a lubricant base stock blend comprising a PAO base stock and an alkylated aromatics (AA) base stock, wherein at least the longer portion of the pendant groups attached to the carbon backbones of the PAO molecules have comparable length to at least the longer portion of the side chain groups attached to the aromatic ring structure of the AA molecules. The comparable lengths of at least the longer portion of the pendant groups and the side chain groups lead to enhanced improvement in oxidation stability of the blend.