C - Chemistry – Metallurgy – 10 – L
Patent
C - Chemistry, Metallurgy
10
L
C10L 1/18 (2006.01) C10L 1/22 (2006.01)
Patent
CA 2089833
T 7227 FF ABSTRACT GASOLINE COMPOSITION The invention provides a gasoline composition comprising a major amount of a gasoline and a minor amount of a mixture of (a) from 75 ppmw to 450 ppmw of a condensation product of (1) a high molecular weight sulfur-free alkyl-substituted hydroxyaromatic compound wherein the alkyl group has a number average molecular weight from 600 to 3000, (2) an amine which contains an amino group having at least one active hydrogen atom, and (3) an aldehyde, wherein the respective molar ratio of reactants is 1 : 0.1-10 : 0.1-10; and (b) from 75 ppmw to 175 ppmw of an oil-soluble poly(oxyalkylene) alcohol, glycol or polyol or mono or di ether thereof, wherein the weight ratio of (a) to (b) in the mixture is at least 0.43, all amounts (ppmw) being based on the gasoline composition; a gasoline additive concentrate for use in preparing said composition; and a method of operating a spark-ignition internal combustion engine using said composition. PS26/T7227FF
Shell Canada Limited
Smart & Biggar
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