Patent ID: 7214649

Claim:
A dispersant composition comprising a reaction product of (1) an acrylamide comprised of a compound of the formula: where R 1 is selected from an α,β-unsaturated linear or branched alkylene group, and R 2 and R 3 are independently selected from H, a linear or branched alkyl or alkenyl group, an aryl group, a cycloalkyl group, an aralkyl group, an alkyaryl group, an alkyl amine group, and an aryl amine group, provided that at least one of R 2 and R 3 contain a titratable nitrogen; and (2) a compound having at least one primary or secondary amine group and being selected from the group consisting of hydrocarbyl-substituted succinimides, hydrocarbyl-substituted amines, and Mannich base adducts derived from hydrocarbyl-substituted phenols condensed with aldehydes and amines, wherein the hydrocarbyl substituent has a number average molecular weight ranging from about 500 to about 5000 as determined by gel permeation chromatography.