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:
Sep. 08, 2015
Filed:
May. 31, 2012
James Thomas Carey, Medford, NJ (US);
S. Galiano-roth Angela, Mullica Hill, NJ (US);
Michael Lewis Blumenfeld, Collingswood, NJ (US);
Kathleen Kim Cooper, South River, NJ (US);
James Thomas Carey, Medford, NJ (US);
S. Galiano-Roth Angela, Mullica Hill, NJ (US);
Michael Lewis Blumenfeld, Collingswood, NJ (US);
Kathleen Kim Cooper, South River, NJ (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annadale, NJ (US);
Abstract
The lubricating composition of this invention is primarily comprised of an admixture of an API Group V base oil component and a polyolefin base oil component. In general, the blend components include at least 45 wt. % of a Group V base oil component having a kinematic viscosity of less than 20 cSt at 100° C., and from 10 wt. % to 60 wt. % of a polyolefin base oil component having a kinematic viscosity of at least 500 cSt and not greater than 4000 cSt at 100° C. The lubricating composition has improved efficiency and lower operating temperatures, comparable to polyalkylene glycol-based lubricant level, which provides improved machine life and seal life, relative to other lubricating compositions.