POWDERY MOLYBDENUM OXYSULFIDE DITHIOCARBAMATE COMPOSITION, APROCESS FOR PRODUCING SAME, AND A GREASE COMPOSITION CONTAINING THE COMPOSITION

摘要

A powdery molybdenum oxysulfide dithiocarbamate composition which comprises a compound represented by the following general formula (I): (see fig. I) wherein R1, R2, R3 and R4 are independent hydrocarbyl groups and may be the same or different groups, and the total number of carbon atoms contained in R1 to R4 is 4 to 36; and wherein X is sulfur or oxygen and the composition of the total of all Xs is given as SmOn in which n and m satisfy the ranges of 1.7 ~ m ~ 3.5 and 0.5 ~ n ~ 2.3, respectively, and in which the constituent particles have diameters of not larger than 50 .mu.m. The present invention also relates to a process for production of the composition and a grease composition containing the same.