Exxonmobil Research and Engineering Company

Other

Exxon Research and Engineering Company

Shlomo Antika

Marc-Andre Poirier

Mark E Okazaki

Adrian J D'Souza

Richard Henry Schlosberg

David Wayne Turner

Jean-Michel Pascual

Thomas G Dietz

George A Weisgerber

Richard A Skillman

Gerard Dallemagne

Marc-Andr&eacute; Poirer

The present invention is a method for operating a hydraulic system at pressures of about 4000 psi or higher, preferably about 5000 psi or higher by using as the lubricant a phosphate ester hydraulic oil comprising a fire resistant phosphate esters base stock, a viscosity index improver, an anti erosion agent, an acid scavenger. The fluid used in the present method can also contain rust inhibitors and/or antioxidants.

Method for lubricating high pressure hydraulic system using phosphate ester hydraulic fluid

Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of the fluid, of n-butyl diisobutyl phosphate or di-n-butyl isobutyl phosphate or a mixture thereof; from 0 to about 15 weight percent, based on the total weight of the fluid, of one or more triaryl phosphates; and an effective amount of a viscosity index improver, an acid control additive and an erosion inhibitor.

Phosphate ester base stocks comprising mixed n-butyl/isobutyl phosphate esters and aircraft hydraulic fluids comprising the same

Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing a novel combination of phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 45 weight percent, based on the total weight of the fluid, of tri-iso-butyl phosphate; from about 30 to about 45 weight percent, based on the total weight of the fluid, of tri-n-butyl phosphate; from about 10 to about 15 weight percent, based on the total weight of the fluid, of one or more triaryl phosphates; and an effective amount of a viscosity index improver, an acid control additive and an erosion inhibitor.

Phosphate ester base stocks and aircraft hydraulic fluids comprising the same

The stray misting property of anti-staining gear oil is reduced by adding to the gear oil from about 0.1 to 5 wt % polyisobutylene of about 37,000 to 140,000 Flory molecular weight.

Anti-staining gear oils with low stray misting properties

A refrigerator working fluid which comprises

Refrigeration working fluid containing complex ester and

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Maplewood, NJ, United States of America

Shlomo Antika