| abstract |
ABSTRACT OF THE DISCLOSURE Novel thiadiazole compounds having the general formula Q is a bivalent thiadiazole ring moiety; Z is a succinate group of the structure or , wherein A is an oxygen or nitrogen atom; R, R', R", and R"' are each independently selected from the group consisting essentially of hydrogen, alkyl, branched or straight chain alkenyl of 2 through 22 carbon atoms and arylalkyl; and M is hydrogen and x is 1 or M is a metal ion and lubricating compositions thereof are prepared from the derivatives of dimercaptothiadiazole and maleic anhydride or a halosuccinate. Lubricating compositions containing the compound, or their metal salts, provide antiwear and antioxidant properties. |