Polylactone aromatic esters and fuel compositions containing...

Details Polylactone aromatic esters and fuel compositions containing... Polylactone aromatic esters and fuel compositions containing...

C - Chemistry, Metallurgy

07

C

C07C 205/57 (2006.01) C07C 69/88 (2006.01) C07C 229/60 (2006.01) C08F 8/00 (2006.01) C08G 63/08 (2006.01) C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/19 (2006.01) C10L 1/198 (2006.01) C10L 1/223 (2006.01) C10L 1/23 (2006.01) C10L 1/238 (2006.01) C10L 10/00 (2006.01)

Patent

CA 2178671

Polylactone aromatic esters having the formula: Image (I) wherein R1 is a hydrocarbyl group having a sufficient number of carbon atoms to render the compound soluble in hydrocarbons boiling in the gasoline or diesel fuel range; R2 is an alkylene group of about 2 to 5 carbon atoms; R3 and R4 are each independently hydrogen, hydroxy, nitro, amino, N-alkylamino having 1 to 6 carbon atoms in the alkyl group, or N,N-dialkylamino having 1 to 6 carbon atoms in each alkyl group, provided that R3 and R4 may not both be hydrogen; and x is an integer from 1 to 25. The polylactone aromatic esters of formula I are useful as fuel additives for the prevention and control of engine deposits.

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