Dispersant additives for lubricant and fuel compsns. - comprising the reac-tion prodor acid acylating agent, hydroxy cpd.

摘要

Oil-soluble dispersant additives providing demulsification characteristics in fuel and lubricating compsns. comprising the prod. obtd. by the reaction at 25-300 degrees C of (a) substd. dicarboxylic acid acylating agent (I), contg. >=30 aliphatic C atoms, where substits. are derived from 1-olefin or halogenated 1-olefin polymer of av. M.W. 700-5000, (b) polyhydric aliphatic alcohol (II) contg. 2-10 (2-6) hydroxy groups, (c) polyoxyalkylene polyamine (III) of M.W. 200-400 and chosen from formulas H2N-Alkylene-(-O-Alkylene)m-NH2 and R- -Alkylene-(O-Alkylene)n-NH2 3-6 (where m = 3-70; n = 1-40 such that total n = 3-70; R = 3-6 valent satd. 1-10C hydrocarbon) and (d) alkylene amine (IV) of formula: NH(R)- -Alkylene-N(R)- n-H (where n = 1-10; R = H, hydrocarbon) in amts. of 0.01-4 equivs. each of (II) and (IV) and 0.01-2.0 equivs. of (III) per equiv. of (I).