Formulation of additives for fuels containing the products is an ester functional group and a detergent - dispersant.

摘要

Formulation of additives for engine fuels, comprising at least one constituent (a) and at least one constituent (b), said constituent (a) consisting of at least one composition comprising the products resulting from the reaction of at least one dicarboxylic compound (d), the carboxylic functions are separated by at most 6 carbon atoms, on at least one glycol monoether or polyoxyalkylene glycol (e) of general formula (i): r1 - o - (r2 - o) n - h, in which r1 represents a hydrocarbon group having from 1 to 30 carbon atoms, r2 represents a divalent hydrocarbon group having from 2 to 6 carbon atoms and n is a number from 1 to 60; and said constituent (b) consisting of at least one detergent - dispersant. This formulation preferably comprises, in addition, a constituent (c) chosen from the group formed by mineral or synthetic lubricating oils and polyglycols which are soluble in the fuel. Use as multifunctional additives for fuels used in internal combustion engines, in particular for those used in spark ignition engines.