A wax-containing middle distillate, such as diesel fuel, having improved low temperature flow properties comprises three or more components including (A) an oil-soluble ethylene backbone flow improving polymer such as ethylene vinyl acetate copolymer, (B) a hydrocarbyl substituted amine salt and/or amide of a carboxylic acid or anhydride such as phthalic anhydride salts, and (C) a hydrocarbyl substituted amine salt and/or amide of (I) a benzoic acid derivative such as the dihydrogenated tallow amine salt of an alkyl substituted dithiobenzoic acid or (II) a phosphoric acid derivative such as the dihydrogenated tallow amine salt of dialkyldithiophosphoric acid.
一种含蜡中间馏分油,如柴油,具有更好的低温流动性能,由三种或三种以上组分组成,包括(A)油溶性
乙烯骨架流动性改进聚合物,如
乙烯-
醋酸乙烯共聚物;(B)
羧酸或酸酐的烃基取代胺盐和/或酰胺,如
邻苯二甲酸酐盐;以及(C)(I)
苯甲酸衍
生物,如烷基取代二
硫代苯甲酸的二氢化牛脂胺盐的烃基取代胺盐和/或酰胺、(C) (I)
苯甲酸衍
生物,如烷基取代二
硫代苯甲酸的二氢化牛脂胺盐,或 (II)
磷酸衍
生物,如二烷基
二硫代磷酸的二氢化牛脂胺盐的烃基取代胺盐和/或酰胺。