FUEL ADDITIVE COMPOSITIONS CONTAINING A MANNICH CONDENSATIONPRODUCT, A POLY(OXYALKYLENE) MONOOL, AND A CARBOXYLIC ACID

A fuel additive composition comprising: a) a Mannich condensation product of (1) a high molecular weight alkyl- substituted hydroxyaromatic compound wherein the alkyl group has a number average molecular weight of from about 300 to about 5,000 (2) an amine which contains an amino group having at lea...

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Bibliographic Details
Main Authors GRAY, JAMES A, AHMADI, MAJID R, SENGERS, HENK P. M
Format Patent
LanguageEnglish
French
Published 29.03.2002
Edition7
Subjects
ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL
CHEMISTRY
FIRELIGHTERS
FUELS
FUELS NOT OTHERWISE PROVIDED FOR
LIQUEFIED PETROLEUM GAS
LUBRICANTS
METALLURGY
NATURAL GAS
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K
TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Summary:A fuel additive composition comprising: a) a Mannich condensation product of (1) a high molecular weight alkyl- substituted hydroxyaromatic compound wherein the alkyl group has a number average molecular weight of from about 300 to about 5,000 (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 (1), (2), and (3) is 1:0.1-10:0.1-10; b) a hydrocarbyl-terminated poly(oxyalkylene) monool having an average molecular weight of about 500 to about 5,000, wherein the oxyalkylene group is a C2 to C5 oxyalkylene group and the hydrocarbyl group is a C1 to C30 hydrocarbyl group; and c) a carboxylic acid as represented by the formula: R1(COOH)x or anhydride thereof, wherein R1 represents a hydrocarbyl group having about 2 to about 50 carbon atoms, and x represents an integer of 1 to about 4. The unique fuel additive composition provides excellent control of engine deposits, particularly engine intake system deposits, such as intake valve deposits. T he improved performance may be attributable to the improved compatibility of th e fuel additive composition of the present invention. The improved compatibility manifests itself in less insoluble material, haze, and flocs. Improved anti- corrosion properties are also provided by the fuel additive composition of the present invention.
Bibliography:Application Number: CA20012357464