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    • 8. 发明授权
    • Fuel oils having improved cold flow properties
    • 燃油具有改善的冷流特性
    • US07713316B2
    • 2010-05-11
    • US10735490
    • 2003-12-12
    • Matthias KrullMarkus KupetzRaimund Wildfang
    • Matthias KrullMarkus KupetzRaimund Wildfang
    • C10L1/18C10L1/22
    • C10L1/143C08F210/02C10L1/195C10L1/1973C10L1/1981C10L1/1985C10L1/221C10L1/224C08F4/34C08F218/08C08F218/02C08F2500/17
    • The invention relates to fuel oils comprising a larger proportion of middle distillates having a sulfur content of at most 350 ppm and an aromatics content of at most 22% by weight, and also a smaller proportion of at least one copolymer of ethylene and vinyl esters, said copolymer containing a) bivalent structural units derived from ethylene of the formula 1 —CH2—CH2—  (1) b) from 5 to 12 mol % of bivalent structural units of the formula 2 where R1 is saturated, branched C5-C18-alkyl, and c) from 4 to 13 mol % of bivalent structural units of the formula 3 and the sum of the molar proportions of structural units of the formulae 2 and 3 being between 12 and 16 mol %, to the corresponding polymers, and also to their use for improving the cold flow behavior of middle distillates having a sulfur content of at most 350 ppm and an aromatics content of at most 22% by weight.
    • 本发明涉及燃料油,其包含较大比例的硫含量至多为350ppm,芳烃含量至多为22重量%的中间馏分,以及乙烯和乙烯基酯的至少一种共聚物的较小比例, 所述共聚物含有a)衍生自式1 -CH 2 -CH 2 - (1)的乙烯的二价结构单元b)5至12mol%的式2的二价结构单元,其中R 1是饱和的,支链C 5 -C 18 - 烷基 ,和c)4至13摩尔%的式3的2价结构单元和式2和3的结构单元的摩尔比例之和为12至16摩尔%,相应的聚合物,以及 它们用于改善硫含量至多为350ppm且芳族化合物含量至多为22重量%的中间馏分的冷流行为。