Patent · US Active

Low sulfur and low metal additive formulations for high performance industrial oils

US8394746B2 · kind B2 · utility

1Cited by

127References

11Claims

0Family size

Assignee

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

James T. Carey · Medford, US
Angela S. Galiano-Roth · Mullica Hill, US
Margaret M. Wu · Skillman, US
Heather M. Haigh · Burke, US

Key dates

Filing date	Aug 18, 2009
Grant date	Mar 12, 2013
Priority date	—
Expiry date	May 22, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/04
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An additive package, lubricant formulation with the additive package and method of improving gear lubricant properties with the additive package are disclosed. The additive package comprises at least one antiwear additive, at least one antioxidant additive, at least one rust inhibitor additive, at least one metal passivator additive, at least one demulsifier additive, at least one defoamant additive wherein the composition has less than 3.5% phosphorous, less than 1.7% ppm nitrogen, less than 1000 ppm sulfur, less than 100 ppm metals and a TAN of less than 1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.