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    • 1. 发明公开
    • Additives for oil compositions
    • 添加剂FÜRÖLZUSAMMENSETZUNGEN
    • EP1690896A1
    • 2006-08-16
    • EP05112828.8
    • 2005-12-22
    • Infineum International Limited
    • Morton, ColinTack, Robert
    • C08L31/02C08L23/08C08L71/02C10M145/00C10L1/18C10L1/14
    • C10M145/00C08K5/01C08L23/0846C08L71/02C10L1/143C10L1/1973C10L1/1985C10L10/14C10L10/16C10M2209/062C10M2209/104C10M2209/109C10N2230/02C08L2666/04C10M2209/086
    • An additive composition comprises at least one polyoxyalkylene compound and at least one ethylene polymer, wherein the at least one ethylene polymer, in addition to units derived from ethylene, comprises units of the formula (I):

      and optionally, units of the formula (II):

      wherein each R 1 group independently represents hydrogen or methyl; wherein each R 2 group independently represents an alkyl group having 5 or more carbon atoms; wherein each R 3 group independently represents hydrogen or methyl; wherein each R 4 group independently represents an alkyl group having between 1 and 4 carbon atoms; wherein the proportion of units of formula (I) in the ethylene polymer is between 16 and 30mol%; and wherein the total proportion of units of formula (I) and formula (II) in the ethylene polymer is between 19 and 30mo1%. The composition is particularly suitable for improving the low temperature properties of fuels having sharp distillation tails and low final boiling points.
    • 添加剂组合物包含至少一种聚氧化烯化合物和至少一种乙烯聚合物,其中所述至少一种乙烯聚合物除了衍生自乙烯的单元外还包含式(I)的单元:和任选地,式(II)的单元 ):其中每个R 1基团独立地表示氢或甲基; 其中每个R 2基团独立地表示具有5个或更多个碳原子的烷基; 其中每个R 3基团独立地表示氢或甲基; 其中每个R 4基团独立地表示具有1至4个碳原子的烷基; 其中乙烯聚合物中式(I)单元的比例为16至30mol%; 并且其中乙烯聚合物中式(I)和式(II)的单元的总比例为19至30mo1%。 该组合物特别适用于改善具有尖锐蒸馏尾部和低终沸点的燃料的低温性能。