Elf Antar France

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Franck Eydoux

Laurent Germanaud

Robert Leger

Clarisse Doucet

Jean-Paul Mercier

Cécile Chambon

Denis Fadel

Christian Trémolière

The invention concerns a composition of mulifunctional additives for cold process treatment obtained by reacting carboxylic compounds with amine compounds, characterized 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) R R C&boxH;CR COOR wherein R and R , identical or different, being hydrogen, a linear or branched C -C alkyl radical; R is hydrogen or a linear or branched alkyl group with not more than three carbon atoms and R is hydrogen or a C -C radical, with N-alkylpolyalkylenepolyamine (D).

Multifunctional additive composition for cold process treatment of middle distillates

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Saint Laurent d'Agry, France

Franck Eydoux