| abstract |
esters of alkoxylated quaternary ammonium salts and fuels containing the salts. a soluble fuel additive for a gasoline or diesel engine, a method for preparing the additive, a fuel containing the additive, a method for improving the performance of fuel injectors for an engine. the soluble fuel additive includes an esterified quaternary ammonium salt derived from a tertiary amine, an epoxide, a proton donor and an anhydride. |