Composições de combustível

摘要

The present invention is directed to the use of cyclic amide alkoxylate compounds as additives in fuel compositions having a major amount of a mixture of hydrocarbons in the gasoline boiling range and a minor amount of one or more cyclic amide alkoxylate compounds of the formula: (I) wherein x is from 2 to 20 and y is from 1 to 50. R1 and R2 are independently hydrogen, hydrocarbyl of 1 to 100 carbon atoms or substituted hydrocarbyl of 1 to 100 carbon atoms. R3 is hydrocarbyl of 1 to 100 carbon atoms or substituted hydrocarbyl of 1 to 100 carbon atoms and R4 is independently hydrocarbyl of 2 to 100 carbon atoms or substituted hydrocarbyl of 2 to 100 carbon atoms. R5 is hydrogen, hydrocarbyl of 1 to 100 carbon atoms, or substituted hydrocarbyl of 1 to 100 carbon atoms or acyl of 1 to 20 carbon atoms. The invention is also directed to the use of these cyclic amide alkoxylate compounds for decreasing intake valve deposits, controlling octane requirement increases and reducing octane requirement. The invention is further directed to novel cyclic amide alkoxylate compounds.