C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 105/74 (2006.01) C10M 137/04 (2006.01) C10M 169/04 (2006.01)
Patent
CA 2347794
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.
L'invention concerne des fluides à base d'esters phosphoriques et des fluides pour avions comprenant des esters phosphoriques mixtes de n-butyl/isobutyl. Les fluides pour avions de cette invention contiennent entre environ 30 et environ 95 % en poids (sur la base du poids total du fluide) de n-butyl diisobutyl phosphate ou de di-n-butyl diisobutyl phosphate ou d'un mélange de ces composants; entre 0 et environ 15 % en poids (sur la base du poids total du fluide) d'un ou de plusieurs triaryles; et une quantité efficace d'un composant correcteur d'indice de viscosité, d'un additif de régulation d'acidité et d'un inhibiteur d'érosion.
Antika Shlomo
Poirer Marc-Andre
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
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