Lubricating compositions containing alkaline earth metal salts

Details Lubricating compositions containing alkaline earth metal salts Lubricating compositions containing alkaline earth metal salts

C - Chemistry, Metallurgy

10

M

C10M 135/10 (2006.01) C10M 159/20 (2006.01) C10M 159/24 (2006.01) C10M 167/00 (2006.01)

Patent

CA 2079823

T 5404 FF ABSTRACT LUBRICATING COMPOSITIONS CONTAINING ALKALINE EARTH METAL SALTS The invention provides a lubricating oil composition comprising a major proportion of a lubricating oil and a minor proportion of an alkaline earth metal salt selected from calcium and magnesium salts of a hydroxyalkyl sulphonic acid of the general formula: Image (I) wherein each of R1, R2, R3 and R4 independently represents a hydrogen atom, or a linear or branched alkyl group, subject to the total number of carbon atoms in R1, R2, R3 and R4 taken together being in the range from 8 to 30; lubricating oil concentrates containing said salts; a process for preparing said composition: and the use of said salts as detergent additives in lubricating oil compositions. PS25004

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