Gasoline composition

C - Chemistry – Metallurgy – 10 – L

Patent

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C10L 1/22 (2006.01) C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/238 (2006.01) C10L 10/00 (2006.01) C10L 1/16 (2006.01) C10L 1/30 (2006.01)

Patent

CA 2078720

The invention provides a gasoline composition comprising a major amount of a gasoline and from 5 ppmw to 1,000 ppmw based on the gasoline composition of a mixture of (a) an oil soluble polyamine selected from the group consisting of (i) a defined aliphatic alkylene polyamine, (ii) a defined Mannich polyamine, and (iii) mixtures of (i) and (ii); and (b) an oil soluble hydrocarbyl poly(oxyalkylene) aminocarbamate having a number average molecular weight in the range from 600 to 10,000 having at least one basic nitrogen atom wherein said hydrocarbyl group contains from 1 to 30 carbon atoms, and wherein the weight ratio of said polyamine (a) to said hydrocarbyl poly(oxyalkylene) aminocarbamate (b) ranges from 3:1 to 1:2; and a gasoline additive concentrate containing said mixture.

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