| abstract |
A multifunctional product is prepared by the reaction of an alkyl or alkenyl succinic acid derivative with a Fused-Ring Aromatic diamine, with a charge mole ratio of the diamine moiety in stoichiometric excess, under reactive conditions to thereby yield a multifunctional lubricant additive which can serve as an oxidation inhibitor and/or an anti-wear agent and/or a soot dispersing agent. |