| abstract |
The oil-soluble azo compounds of this invention are useful as dispersants, corrosion inhibitors and anti-wear agents in lubricating oil and fuel compositions. The predominant oil-soluble azo reaction product may be represented by the following formulas: ##STR1## wherein R represents an oil-solubilizing, synthetic, polymeric organic radical containing at least 20 carbon atoms, n Y is independently selected from the group consisting of --NR 2 R 3 and --SR 4 , n R 2 , r 3 , and R 4 are independently selected from hydrogen, alkyl, cycloalkyl, aryl, alkaryl and aralkyl, n X is independently selected from oxygen, sulfur and =NR 5 , with the proviso that when X is =NR 5 , Y is --NR 2 R 3 , n R 5 is selected from the group consisting of alkyl, cycloalkyl, aryl and alkaryl, n Z represents a polyvalent organic radical having a valence of n and selected from hydrocarbon, oxahydrocarbon, azahydrocarbon and thiahydrocarbon radicals and their oxygenated and halogenated derivatives, n E is a monovalent radical selected from alkyl, cycloalkyl, aralkyl, aryl, and alkaryl, and n n is an integer from 2 to 5. |