Exxonmobil Research and Engineering Company

Marcia G Rogers

Liehpao O Farng

Thomas J Karol

Paul Dubs

Douglas Edward Deckman

Angela Stefana Galiano-Roth

Kevin John Kelly

Walter David Vann

William H Buck

L Oscar Farng

Gordon H Lee

Miles J Hutchings

Kevin A Chinn

Andrew G Horodsky

Disclosed are sulfur and phosphorous free, borated organomolybdenum compositions containing borated alcohols. These compositions can be formulated with ashless antioxidants and low levels of phosphorous containing antiwear compounds to provide improved lubricating compositions.

Organomolybdenum-boron additives

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&#xb0; C. and a viscosity index greater than 100, a second base stock with a viscosity of at least 2 cSt kv 100&#xb0; C. and less than 60 cSt kv 100&#xb0; C. wherein the second base stock is at least 120 cSt kv 100&#xb0; 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.

Chromium HVI-PAO bi-modal lubricant compositions

The present invention describes an improved lubricant composition comprising a particularly effective combination of components comprising ashless antiwear and rust inhibitor additives with an antioxidant liquid mixture formed by reacting an olefin with a mixture of diphenylamines and phenothiozines.

Lubricant containing a synergistic combination of rust inhibitors, antiwear agents, and a phenothiazine antioxidant

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Mount Holly, NJ, United States of America

Marcia G Rogers