Detergent and anti-corrosive additive for fuels and fuel...

Details Detergent and anti-corrosive additive for fuels and fuel... Detergent and anti-corrosive additive for fuels and fuel...

C - Chemistry, Metallurgy

10

L

C10L 1/22 (2006.01) C10L 1/224 (2006.01) C10L 1/2383 (2006.01) C10L 10/00 (2006.01) C10L 10/04 (2006.01)

Patent

CA 2266522

The invention concerns a detergent and anti-corrosive additive for engine fuels, in particular gas oil, containing amide or imide functions characterised in that it is obtained by mixing wt.60 to 90 % of a compound A consisting of at least one carboxylic polyalkenyl, diacid or anhydride, of average molecular mass between 200 and 3000, wt. 0.1 to 10 % of a compound B consisting of at least one carboxylic compound, monoacid or anhydride, containing 1 to 6 carbon atoms per chain and 10 to 30 % of a compound C consisting of at least one primary polyamine of general formula H2N - [- (CHR1- (CH2)p - CHR2)n - NH]m- H, the mol ratios A/B/C corresponding to 1/(0.1 to 1)/(1 to 3), A/B/C never being 1/1/1.

Additif détergent et anti-corrosion pour carburants moteurs, notamment les carburants de type gazole, comprenant des fonctions amides ou imides caractérisé en ce qu'il est obtenu en mélangeant de 60 à 90 % en poids d'un composé A constitué par au moins un composé polyalcényl carboxylique, diacide ou anhydride, de masse moléculaire moyenne variant de 200 à 3000, de 0,1 à 10 % en poids d'un composé B constitué par au moins un composé carboxylique, monoacide ou anhydride, comprenant de 1 à 6 atomes de carbone par chaîne et de 10 à 30 % d'un composé C constitué par au moins une polyamine primaire de formule générale H2N -[-(CHR1-(CH2)p- CHR2)n-NH]m-H, les rapports molaires A/B/C correspondant à 1/(0,1 à 1)/(1 à 3), A/B/C ne pouvant jamais être 1/1/1.

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