Lubricant composition

Details Lubricant composition Lubricant composition

C - Chemistry, Metallurgy

10

M

253/81

C10M 1/48 (1980.01) C10M 3/42 (1980.01)

Patent

CA 1120023

ABSTRACT OF THE DISCLOSURE An additive combination comprising a polyhydroxy-substituted ester of a polycarboxylic acid and a metal dialkyl dithiophosphate and lubricating compositions comprising the same. The lubricating composi- tions comprising these additives exhibit improved anti-fraction and anti-wear properties. Best results are achieved when the ester is obtained from a dimer acid and particularly a dimer of a fatty acid containing conjugated unsaturation. The metal used in the metal dialkyl dithiophosphate must be one having a relatively soft metal oxide and particularly a metal oxide having a Mohs hardness of 3 or less.

297120

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