MANNICH DETERGENTS FOR HYDROCARBON FUELS

A fuel additive composition is provided to be effective in controlling the formation of engine deposits in a spark and compression ignition internal combustion engine and to have a strong detergency characteristic in hydrocarbon fuel. The fuel additive composition comprises (a) a Mannich reaction pr...

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Bibliographische Detailangaben
Hauptverfasser:	WANGQI HOU PETER, COLUCCI WILLIAM J, MAY DUFFIELD THOMAS, MALFER DENNIS J
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY COMPOSITIONS BASED THEREON DETERGENT COMPOSITIONS DETERGENTS FATTY ACIDS THEREFROM FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NATURAL GAS ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	A fuel additive composition is provided to be effective in controlling the formation of engine deposits in a spark and compression ignition internal combustion engine and to have a strong detergency characteristic in hydrocarbon fuel. The fuel additive composition comprises (a) a Mannich reaction product obtained by reacting (i) a polyamine having a sterically-hindered primary amino group, (ii) a hydrocarbyl-substituted hydroxyaromatic compound, and (iii) an aldehyde, and (b) a liquid carrier. The polyamine has a structure represented by the formula 1, wherein X and Z each is a methylene group, Y is an alkylene or alkylamino group, n is 0 or 1, Q is an optional alkylene group appropriate in forming a cyclic structure, E is a hydrocarbyl group, t is 0 or 1, R1 is a hydrocarbyl group or hydrogen, with the proviso that R1 is hydrocarbyl if n is 1, R2 is hydrogen or a hydrocarbyl group, and m is 0 or 1 with the proviso that m is 0 if Q is present.