High load-carrying turbo oils containing amine phosphate and...

Details High load-carrying turbo oils containing amine phosphate and... High load-carrying turbo oils containing amine phosphate and...

C - Chemistry, Metallurgy

10

M

C10M 169/04 (2006.01) C10M 135/26 (2006.01) C10M 137/08 (2006.01) C10M 141/10 (2006.01)

Patent

CA 2189885

This invention relates to synthetic based turbo oils, preferably polyol ester-based turbo oils which exhibit exceptional load-carrying capacity by use of a synergistic combination of sulfur (S)-based and phosphorous (P)-based load additives The S-containing additive of the present invention is sulfur containing carboxylic acid (SCCA), preferably the C1-C4 thioether carboxylic acid and the P-containing component is one or more amine phosphates. The turbo oil composition consisting of the dual P/S additives of the present inven-tion achieves an excellent load-carrying capacity, which is better than that obtained when each additive was used alone at a comparable treat rate to the total combination additive treat rate, and this lower concentration requirement of each additive allows the turbo oil composition to meet or exceed US Navy MIL-L-23699 requirements including Oxidation and Corrosion Stability and Si seal compatibility.

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