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:
Jul. 02, 2013
Filed:
Oct. 01, 2009
Gordon H. Lee, Newtown, PA (US);
Kevin J. Kelly, Mullica Hill, NJ (US);
Marcia G. Rogers, Mount Holly, NJ (US);
Kevin A. Chinn, Mount Laurel, NJ (US);
Gordon H. Lee, Newtown, PA (US);
Kevin J. Kelly, Mullica Hill, NJ (US);
Marcia G. Rogers, Mount Holly, NJ (US);
Kevin A. Chinn, Mount Laurel, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The invention relates to oil compositions containing chromium catalyzed high viscosity index polyalphaolefins (HVI-PAO). In one embodiment the oil formulation comprises a chromium catalyzed HVI-PAO with a viscosity greater than 125 cSt kv 100° C. and a viscosity index greater than 100, a second base stock with a viscosity of at least 2 cSt kv 100° C. and less than 60 cSt kv 100° C. wherein the second base stock is at least 120 cSt kv 100° C. less than the chromium HVI-PAO, an ester with a viscosity of at least 2 and less than 6, the ester chosen from the group consisting of monoester, di-octyl sebacate and any combination thereof comprising more than 10 weight percent and less than 30 weight percent of the oil formulation, the oil formulation having a viscosity index of greater than 180.