Power transmission fluids with enhanced extreme pressure...

Details Power transmission fluids with enhanced extreme pressure... Power transmission fluids with enhanced extreme pressure...

C - Chemistry, Metallurgy

10

M

C10M 137/12 (2006.01) C10M 141/10 (2006.01) C10M 163/00 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2496100

A power transmission fluid composition for extreme pressure applications. The power transmission fluid includes a base oil, and an additive composition containing an extreme pressure performance improving amount of an ester of phosphoric acid of the formula: Image where R1 is a hydrocarbyl group containing from about 8 to about 24 carbon atoms, R2 and R3 are independently selected from hydrogen and a hydrocarbyl group containing from about 1 to about 8 carbon atoms, provided that no more than one of R2 and R3 is hydrogen, a succinimide dispersant, and, optionally, a metal-based detergent. The optional detergent is substantially devoid of calcium rations.

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