Additive concentrate, gasoline composition, process for the preparation of a gasoline composition, and method of operation of a spark ignition internal combustion engine

摘要

"ADDITIVE CONCENTRATE, GASOLINE COMPOSITION, PROCESS FOR PREPARING A GASOLINE COMPOSITION, AND, OPERATING METHOD OF AN INTERNAL COMBUSTION ENGINE FOR SPARK IGNITION". Additive concentrate: The invention features an additive concentrate composed of an oil-soluble poly (oxyalkylene) aminocarbamate hydrocarbon having a weight average molecular weight (in the range of 600 to 10,000, having at least one basic nitrogen atom where said group hydrocarbyl contains 1 - 30 carbon atoms, and an oil-soluble hydrocarbilamine of the formula R-NH ~ 2 ~, where R represents a group R 'or a group R' - CH ~ 2 ~ -, where R 'represents a hydrocarbyl group having a numerical average molecular weight (Mn) in the range of 750 to 6000; a gasoline composition containing such an additive concentrate; and its preparation; and a method of operating a spark ignition engine using such a gasoline composition.