POLYETHERAMINE OR POLYETHERAMINE DERIVATIVE FUELS FOR COMBUSTION ENGINES

摘要

Fuels for spark ignition engines, which fuels contain small amounts of a polyether amine and/or polyether amine derivative of the general formula …IMAGE… in which R1 is a phenol- or alkylphenol-polyether radical of the general formula …IMAGE… or a cyclohexyl- or alkylcyclohexyl-polyether radical of the general formula …IMAGE… R2 and R3 may be identical or different and are hydrogen, the phenol- or alkylphenol-polyether radical (IIIa), the cyclohexyl- or alkylcyclohexyl-polyether radical (IIIb), the acyl radical of a carboxylic acid having 2 to 24 carbon atoms or the hydroxyalkyl radical of the general formula …IMAGE… or R2 is an alkyl radical having 1 to 20 carbon atoms and R3 is hydrogen, the phenol- or alkylphenol-polyether radical (IIIa), the cyclohexyl- or alkylcyclohexyl-polyether radical (IIIb), the acyl radical of a carboxylic acid having 2 to 24 carbon atoms or the hydroxyalkyl radical (IV), R4 is the carboxylate radical of a carboxylic acid having 2 to 24 carbon atoms, R5, R6 and R7 may be identical or different and are hydrogen or a hydrocarbon radical having 1 to 30 carbon atoms, R8 is a polyether chain comprising alkene oxides having 2 to 8 carbon atoms or mixtures of these alkene oxides having 2 to 100 alkene oxide units in the chain, and R9 is hydrogen or a hydrocarbon radical having 1 to 6 carbon atoms, and m is the numbers 0 to 5, the mean molecular weight Mn of the polyether amines or polyether amine derivatives (I) or (II) being 500 to 8000, and the polyether amines or the parent polyether amines to the polyether amine derivatives being prepared by amination of phenol- or alkylphenol-polyethers of the general formula …IMAGE… or of cyclohexyl- or alkylcyclohexyl-polyethers of the general formula …IMAGE… in which R5, R6, R7 and R8 are as defined above, using ammonia or primary amines. …??The novel polyether amines and their derivatives have an improved valve-cleaning action.