Multifunctional additive composition for cold operability of...

C - Chemistry – Metallurgy – 10 – L

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C10L 1/22 (2006.01)

Patent

CA 2367927

The invention concerns a composition of mulifunctional additives for cold process treatment obtained by reacting carboxylic compounds with amine compounds, characterised in that it contains at least 50 wt. % of a mixture consisting of 10 to 90 wt. % of an additive (AB) of a carboxylic compound (A) selected among maleic and succinic anhydrides, corresponding acids and esters with a polyalkylamine (B) and 90 to 10 wt. % of an additive (CD) obtained by reacting a copolymer (C) obtained by reacting a first unsaturated carboxylic acid with an alkylated ester of a second unsaturated carboxylic acid, identical to or different from the first, of general formula (II) R1 R2 C = C R3 COOR4 wherein R1 and R2, identical or different, being hydrogen, a linear or branched C1-C20 alkyl radical; R3 is hydrogen or a linear or branched alkyl group with not more than three carbon atoms and R4 is hydrogen or a C1-C25 radical, with N-alkylpolyalkylenepolyamine (D).

Composition d'additifs multifonctionnels d'opérabilité à froid des distillats moyens résultant de la réaction de composée carboxyliques avec des composés aminés caractérisée en ce que elle contient au moins 50 % en poids d'un mélange constitué par 10 à 90 % en poids d'un additif (AB) d'un composé carboxylique (A) parmi les anhydrides maléiques et succiniques, les acides et les esters correspondant avec une polyalkylamine (B) et 90 à 10 % en poids d'un additif (CD) obtenu par réaction d'un copolymère (C) obtenu par réaction d'un premier acide carboxylique insaturé avec l'ester alkylé d'un deuxième acide carboxylique insaturé, identique ou différent du premier, de formule générale (II) R1 R2 C = C R3 COOR4 R1 et R2, identiques ou différents, étant l'hydrogène, un radical alkyle linéaire ou ramifié comprenant de C1 à C20, R3 est l'hydrogène ou un groupement alkyl linéaire d'au plus trois carbone et R4 est l'hydrogène ou un radical de C1 à C25, avec une N-alkylpolyalkylènepolyamine (D).

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