Dispersants and lubricating oil compositions containing same

Details Dispersants and lubricating oil compositions containing same Dispersants and lubricating oil compositions containing same

C - Chemistry, Metallurgy

10

M

C10M 145/08 (2006.01) C10M 133/56 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2413676

A dispersant that is a reaction product of a polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester; and a polyamine, wherein the reaction product has from greater than about 1.3 to less than about 1.7 mono- or di-carboxylic acid producing moieties per polyalkenyl moiety, and the polyalkenyl moiety has a number average molecular weight of at least about 1800, and a molecular weight distribution (MW/Mn) of from about 1.5 to about 2Ø

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