NOVEL COMPOUNDS AND LUBRICATING COMPOSITIONS COMPRISING THE SAME

摘要

The present invention provides novel compounds which contain no zinc or phosphorus components for use in lubricating compositions, e.g. for replacing ZnDTP. To this end the present invention provides a compound having the general formula (1), wherein R1 and R2 are independently hydrogen and/or a linear or branched chain, saturated or unsaturated hydrocarbon moiety with from 1 to 30 carbon atoms or a substituted hydrocarbon moiety, including substitutions where one or more of these hydrocarbon moieties have been substituted with hetero-atoms; wherein the total number of carbon atoms of R1 and R2 is not more than 40; and wherein X is oxygen or sulphur.