Fuel compositions

Details Fuel compositions Fuel compositions

C - Chemistry, Metallurgy

07

D

C07D 207/27 (2006.01) C07D 201/02 (2006.01) C07D 207/26 (2006.01) C07D 211/76 (2006.01) C07D 223/10 (2006.01) C08G 65/26 (2006.01) C08G 65/28 (2006.01) C10L 1/14 (2006.01) C10L 1/232 (2006.01) C10L 10/00 (2006.01) C10L 1/16 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01)

Patent

CA 2159491

The invention provides fuel compositions comprising a mixture of a major amount of hydrocarbons in the gasoline boiling range and a minor amount of an additive compound having general formula (I), wherein x is from 2 to 20; y is from 1 to 50; R1 and R2 are independently hydrogen or optionally substituted hydrocarbyl of 1 to 100 carbon atoms; R3 is optionally substituted hydrocarbyl of 1 to 100 carbon atoms; each R4 is independently optionally substituted hydrocarbyl of 2 to 100 carbon atoms; R5 is hydrogen, or optionally substituted hydrocarbyl of 1 to 100 carbon atoms or acyl of 1 to 20 carbon atoms and the average formula weight of the additive compound is at least 600; the operation of an internal combustion engine using such compositions with control of octane requirement increase and/or reduction of octane requirement and/or reduction of intake valve deposits; fuel additive concentrates; certain compounds of formula (I) per se and their preparation.

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