Polyanhydride modified adducts or reactants and oleaginous compositions containing same

摘要

An oil soluble dispersant additive useful in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of: (i) at least one intermediate adduct comprised of the reaction products of (a) at least one polyanhydride, and (b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and (ii) at least one member selected from the group consisting of (a) at least one long chain hydrocarbyl substituted C4-C10 dicarboxylic acid producing material; (b) at least one long chain hydrocarbyl substituted hydroxy aromatic material and at least one aldehyde; or (c) at least one aldehyde and at least one reaction product of a hydrocarbyl substituted C3-C10 monocarboxylic or C4-C10 dicarboxylic acid or anhydride and an amine substituted hydroxy aromatic compound. Also disclosed are oleaginous compositions, particularly lubricating oil compositions, containing these oil soluble dispersants.