Synthesis of long chain alkyl and chloroalkyl esters of perfluorosalicylic acid, new potential high temperature antifriction additives for advanced motor oils

Abstract

Long chain alkyl and chloroalkyl esters of perfluorosalicyclic acid, which are potential antifriction additives for lubricating oil or fuel, are prepared by treating equimolar amounts of perfluorinated salicylic acid and a long chain alkyl alcohol in benzene in the presence of a strongly acidic ionic exchange resin.