FUEL LUBRICITY ADDITIVES

摘要

There is disclosed a fuel lubricity additive, made by a two-step process wherein the first step is co-reacting an unsatured base oil, predominantly from vegetable oil sources, and a compound having a diene structure and a carboxylic acid group, wherein the second step is esterifying or amidifying the free carboxylic acid group of anhydride group with a polyhydroxy-containing compound or polyamine compound to form the final fuel lubricity additive useful in diesel fuels. The inventive fuel lubricity additive also is useful as a dispersant.