Hydrocarbyl-substituted mono- and bis-succinimide having polyamine chain linked hydroxyacyl radicals and mineral oil compositions containing same

An alkenyl succinimide represented by the formula:

• ##STR11## in which R is an alkenyl radical having from about 50 to 200 carbon atoms, X is a divalent --CH.sub.2 --CH.sub.2 --, or --CH.sub.2 --CHOH--CH.sub.2 --radical, A is hydrogen or a glycolyl radical in which 50 to 100 percent of said radicals represented by A is said glycolyl radical, x is a number from 2 to 4, and R' is a radical selected form the group consisting of --NH.sub.2 and --NHA in which A has the value noted above.

An alkenyl succinimide represented by the formula:

• ##STR12## in which R is an alkenyl radical having from about 50 to 200 carbon atoms, X is a divalent --CH.sub.2 --CH.sub.2 --, or a divalent --CH.sub.2 --CHOH--CH.sub.2 --radical,
• A is hydrogen or a glycolyl radical in which at least 70 percent of said radicals represented by A are said glycolyl radical, x is a number from 2 to 4 and R' is a radical selected from the group consisting of --NH.sub.2 and --NHA in which A has the value noted above.

A lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor dispersant amount of a hydrocarbyl-substituted mono- and bis-succinimide compound having branched hydroxyacyl radicals represented by the formula:

• ##STR13## in which R is a hydrocarbyl radical having from about 8 to 400 carbon atoms, X is a divalent alkylene or secondary hydroxy substituted alkylene radical having from 2 to 3 carbon atoms, A is hydrogen or a hydroxyacyl radical selected from the group consisting of glycolyl, lactyl, 2-hydroxymethyl propionyl and 2,2'-bis-hydroxymethyl propionyl radicals and in which at least 30 percent of said radicals represented by A are said hydroxyacyl radicals, x is a number from 1 to 6, and R' is a radical selected from the group consisting of --NH.sub.2, --NHA or a hydrocarbyl substituted succinyl radical having the formula:
• ##STR14## in which R and A have the values noted above.