| 摘要 |
The reaction products of the alpha-halogenated half esters or amides of succinic acid and thiadiazole dimercaptides as new compositions of matter of the general formula Z1 -- S --- Q --- S -- Z2, wherein: Q is a bivalent thiadiazole ring moiety selected from the group consisting essentially of 1,3,4 thiadiazole; 1,2,4-thiadiazole; 1,2,3-thiadiazole; and 1,2,5-thiadiazole; Z1 is and Z2 is wherein: R and R"' are each independently selected from the group consisting essentially of hydroxyl, alkoxy, branched or straight chain alkylenoxy of from 2 through 22 carbon atoms, arylalkoxy, OR', NHR', and NR'R'; R' and R" are each independently selected from the group consisting essentially of hydrogen, alkyl, branched or straight chain alkylene of 2 through 22 carbon atoms, arylalkyl, with the further optional proviso that at least one of R, R', R", or R"' forms a carboxyl group with the adjacent carbon atom to which it is linked. The use of the above new compositions of matter as lubricant additives possessing multifunctional properties such as extreme pressure, antiwear, antioxidant and anticorrosion. |
