C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 141/00 (2006.01) C10M 135/18 (2006.01) C10M 137/04 (2006.01) C10M 141/10 (2006.01) C10M 167/00 (2006.01)
Patent
CA 2186168
This invention relates to a composition, comprising: (A) a metal, amine or ammonium salt of a compound represented by the formula Image (A-I) wherein in Formula (A-I), X1, X and X3 and X4 are independently O or S, X1 and X can be NR3, a and b are independently zero or 1, and R1, R and R3 are independently hydrocarbyl groups and R3 can be hydrogen; and (B) a thiocarbamate represented by the formula R1RN-C(X)S-(CR3R4)aZ (B-I) wherein in Formula (B-I), R1, R, R3 and R4 are independently hydrogen or hydrocarbyl groups, provided that at least one of R1 and R is a hydrocarbyl group; X is O or S; a is 1 or 2; and Z is an activating group, a hydrocarbyl group, a hydroxy hydrocarbyl group, a hetero group, or a -SC(X)-NR1R group; provided that when a is 2, Z is an activating group. These composi- tions are useful in providing lubricating oil compositions and functional fluids, especially engine lubricating oils, with enhanced antiwear properties, and in one embodiment enhanced antioxidant properties.
Dohner Brent R.
Supp James A.
Ridout & Maybee Llp
The Lubrizol Corporation
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