Thiadiazole compounds and lubricant additives thereof

C - Chemistry – Metallurgy – 07 – D

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260/301, 253/59,

C07D 285/04 (2006.01) C07D 285/125 (2006.01) C07D 417/12 (2006.01) C10M 135/36 (2006.01) C10M 139/00 (2006.01)

Patent

CA 1276643

ABSTRACT OF THE DISCLOSURE Novel thiadiazole compounds having the general formula Image Q is a bivalent thiadiazole ring moiety; Z is a succinate group of the structure or Image , 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.

514693

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