POLYFUNCTIONAL ADDITIVE FOR HYDROCARBON FUELS FOR INTERNAL COMBUSTION ENGINE AND FUEL COMPOSITION COMPRISING IT Russian patent published in 1997 - IPC

FIELD: production of fuel compositions. SUBSTANCE: proposed additive comprises 0.5-10 % of product of interaction of aliphatic $$$ amine or aromatic $$$ amine, oxyethylated alkyl $$$ phenol (having 4-12 oxyethyl groups) with oxidized hydrocarbons or with monobasic fatty acids $$$ or with dibasic acids $$$ or mixture thereof, 7-94 % of aromatic amines, 0.1-2 % of shielding phenols or bis-phenols, 0.1-2 % of aminophenols and oxygenates. 4-oxydiphenylamine, 2,4,6-tri(dialkylaminomethyl) where alkyl is $$$ or products of condensation of ionol with amines are used as mentioned above additive. Methyl-tert-butyl ether, its mixture with isobutyl alcohol, with methyl alcohol, ethyl alcohol, with oil or dioxane alcohols are used as said oxygenates. Proposed fuel composition comprises hydrocarbon fuel and said additive, its quantity being 1-20 %. EFFECT: improved quality. 4 cl, 4 tbl