C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 205/37 (2006.01) C07C 217/58 (2006.01) C07C 217/84 (2006.01) C07C 217/90 (2006.01) C07C 255/54 (2006.01) C08F 8/00 (2006.01) C08F 8/30 (2006.01) C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/238 (2006.01) C10L 1/2387 (2006.01) C10L 10/00 (2006.01) C10L 1/16 (2006.01) C10L 1/22 (2006.01) C10L 1/30 (2006.01)
Patent
CA 2193749
Substituted aromatic polyalkyl ethers having the formula: (see fig. I) wherein R1 is a polyalkyl group having an average molecular weight of about 450 to about 5,000; A is nitro, amino, cyano, aminomethyl, N-alkylamino or N- alkylaminomethyl wherein the alkyl group contains from about 1 to about 6 carbon atoms, or N,N-dialkylamino or N,N-dialkylaminomethyl wherein each alkyl group independently contains from about 1 to about 6 carbon atoms. x is an integer from about 0 to about 1; and y is an integer from about 0 to about 10 with the proviso that one of x and y must be 0 and the other must be greater than 0. The substituted aromatic polyalkyl ethers of the present invention are useful as fuel additives for the prevention and control of engine deposits.
olyalkyle-éthers aromatiques substitués de formule : (voir fig. I) où ¢R1 est un groupe polyalkyle de poids moléculaire moyen d'environ 450 à 5 000; A est un groupe nitro, amino, cyano, aminométhyle, N-alkylamino ou N-alkylaminométhyle dans lesquels le groupe alkyle contient de 1 à 6 atomes de carbone, ou N,N-dialkylamino ou N,N-dialkylaminométhyle dans lesquels le groupe alkyle, indépendamment, contient de 1 à 6 atomes de carbone. x est un nombre entier compris entre 0 et 1; et y est un nombre entier compris entre 0 et 10 à la condition que soit x soit y corresponde à 0 et que l'autre soit plus grand que 0. Les polyalkyle-éthers aromatiques substitués de la présente invention sont utiles comme additifs de carburant pour prévenir et éliminer les dépôts dans les moteurs.
Chevron Chemical Company
Sim & Mcburney
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