Fuel compositions containing poly(oxyalkylene) aromatic ethers

C - Chemistry – Metallurgy – 07 – C

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C07C 217/86 (2006.01) C07C 205/27 (2006.01) C07C 217/76 (2006.01) C10L 1/14 (2006.01) C10L 1/238 (2006.01) C10L 10/00 (2006.01) C10L 1/16 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/24 (2006.01) C10L 1/30 (2006.01) F02B 3/06 (2006.01)

Patent

CA 2151713

Fuel compositions containing a major amount of hydrocarbons boiling in the gasoline or diesel range and an effective deposit-controlling amount of a poly(oxyalkylene) aromatic ether having formula (I) where A1 is nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N- dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R1 and R2 are independently hydrogen, hydroxy, lower alkyl, or lower alkoxy; R3 and R4 are independently hydrogen or lower alkyl and each R3 and R4 is independently selected in each -O-CHR3-CHR4- unit; R5 is hydrogen, alkyl having 1 to 100 carbon atoms, phenyl, aralkyl having 7 to 100 carbon atoms or alkaryl having 7 to 100 carbon atoms, or an acyl group of formula (a) where R6 is alkyl having 1 to 30 carbon atoms, phenyl, aralkyl having 7 to 36 carbon atoms or alkaryl having 7 to 36 carbon atoms; n is an integer from 5 to 100; and x is an integer from 0 to 10.

L'invention concerne des compositions de carburants de la gamme des essences ou des diesels comportant une majorité d'hydrocarbures en ébullition et une quantité d'éther aromatique de poly(oxyalkylène) suffisante pour contrôler l'effet de dépôt. La formule de cet éther aromatique de poly(oxyalkylène) correspond à la formule générale (I). Dans cette formule, A¿1? est un nitro, amino, N-alkylamino dans lequel le groupe alkyle contient 1 à 6 atomes de carbone, ou N,N-dialkylamino dans lequel chaque groupe alkyle contient indépendamment de 1 à 6 atomes de carbone. R¿1? et R¿2? sont indépendamment un hydrogène, hydroxy, alkyle inférieur ou alkoxy inférieur. R¿3? et R¿4? sont indépendamment un hydrogène ou alkyle inférieur, chaque R¿3? et R¿4? étant indépendamment sélectionné dans chaque unité-O-CHR¿3?-CHR¿4?-. R¿5? est un hydrogène, alkyle comportant de 1 à 100 atomes de carbone, phényle, aralcoyle comportant de 7 à 100 atomes de carbone, ou un aralcoyle comportant de 7 à 100 atomes de carbone, ou encore un groupe acyle correspondant à la formule générale (a). Dans cette formule, R¿6? est un alkyle comportant 1 à 30 atomes de carbone, phényle, aralcoyle comportant 7 à 36 atomes de carbone ou alkaryle comportant 7 à 36 atomes de carbone. "n" est un nombre entier de 5 à 100, et "x" est un nombre entier de 0 à 10.

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