Patent ID: 6458172
Filing Date: 2002-10-01
Classification: C10L

Abstract:
A fuel additive composition, consisting essentially of:(a) a Mannich reaction product of a hydrocarbyl-substituted phenol wherein the hydrocarbyl substituent has a number average molecular weight of from 750 to 1500; an aldehyde; and an amine; and (b) a polyetheramine represented by the formula R[OCH2CH(R1)]nA wherein R is a hydrocarbyl group derived from an alcohol having 6 to 20 carbon atoms or an alkylphenol wherein the alkyl group has 10 to 20 carbon atoms; R1 is hydrogen, methyl, or ethyl; n is a number from 10 to 35; A is selected from the group consisting of â€”OCH2CH2CH2NR2R2 and â€”NR3R3 wherein each R2 is independently hydrogen or hydrocarbyl; and each R3 is independently hydrogen, hydrocarbyl or â€”[R4N(R5)]pR6 wherein R4 is C2-C10 alkylene; R5 and R6 are independently hydrogen or hydrocarbyl; and p is a number from 1-7; and wherein the weight ratio on an actives basis of the Mannich reaction product to the polyetheramine is 1:1-1.3.