Combination of a sulfur compound and specific phosphorus...

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 141/08 (2006.01) C10M 135/02 (2006.01) C10M 137/08 (2006.01) C10M 141/10 (2006.01) C10M 141/12 (2006.01) C10M 159/12 (2006.01) C10M 163/00 (2006.01) F02B 75/02 (2006.01)

Patent

CA 2155068

This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (a) a extreme pressure improving amount of at least one sulfur compound, and an antiwear or an extreme pressure improving amount of the combination of (b) at least one ammonium salt of a phosphoric acidester, (c) at least one phosphite, and (d) at least one thiophosphate or at least one reaction product of a phosphite and sulfur or a source of sulfur. The invention also relates to concentrates and greases containing the combination of the sulfur compound and the specific phosphorus compounds.

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