PHOSPHATE ESTER BASE STOCKS COMPRISING MIXED $i(n)-BUTYL/ISOBUTYL PHOSPHATE ESTERS AND AIRCRAFT HYDRAULIC FLUIDS COMPRISING THE SAME

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 d...

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Bibliographic Details
Main Authors ANTIKA, SHLOMO, POIRER, MARC-ANDRE
Format Patent
LanguageEnglish
French
German
Published 29.12.2004
Edition7
Subjects
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Summary: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.
Bibliography:Application Number: EP19990961592