Additive concentrate

C - Chemistry – Metallurgy – 10 – L

Patent

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Details

C10L 1/22 (2006.01) C10L 1/14 (2006.01) C10L 1/238 (2006.01) C10L 10/00 (2006.01)

Patent

CA 2389541

Additive ConcentrateThe invention provides an additive concentrate which comprises an oil soluble hydrocarbyl poly(oxyalkylene) aminocarbamate having a number average molecular weight (Mn) in the range 600 to 10,000 having at least one basic nitrogen atom wherein said hydrocarbyl group contains 1-30 carbon atoms, and an oil soluble hydrocarbyl amine of formula R-NH2, wherein R represents a group R' or a group R'-CH2-, wherein R' represents a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6,000; a gasoline composition containing such additive concentrate; and its preparation; and a method of operating a spark-ignition engine using such gasoline composition.

L'invention concerne un concentré d'additifs renfermant un hydrocarbyl poly(oxyalkylène) aminocarbamate liposoluble doté d'un poids moléculaire moyen (Mn) compris entre 600 et 10 000, d'au moins un atome d'azote basique, ledit groupe hydrocarbyle contenant 1 à 30 atomes de carbone, et un amine hydrocarbyle liposoluble de la formule R-NH2, dans laquelle R représente un groupe R' ou un groupe R'-CH2-, R' représente un groupe hydrocarbyle doté d'un poids moléculaire moyen (Mn) compris entre 750 et 6 000. La présente invention a également trait à une composition d'essence automobile renfermant un tel concentré d'additifs, à sa préparation et à un procédé de fonctionnement d'un moteur à allumage par étincelle utilisant une telle composition d'essence automobile.

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