| 摘要 |
<p>The multifunctional additive composition for cold process treatment of middle distillates contains at least 50 % of a mixture comprising: 10 - 90 % of an additive (AB) consisting of a carboxylic compound A selected among maleic and succinic anhydrides, corresponding acids and esters with an polyalkylamine (B) and 90 - 10 % 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 or different, being hydrogen or linear or branched alkyl radicals with 1 to 20 carbon atoms, R3 is hydrogen or linear or branched alkyl group with not more than three carbon atoms and R4 is hydrogen or alkyl radical containing 1 to 25 carbon atoms, with N-alkylpolyalkylenepolyamine (D).</p> |
