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发明授权
CN102985455B 具有高化学均匀性的共聚物及其用于改进燃料油的低温流动性能的用途 有权

具有高化学均匀性的共聚物及其用于改进燃料油的低温流动性能的用途
摘要：
本发明涉及一种具有高化学均匀性的共聚物，其含有（A）50-30重量%的乙烯、（B）50-70重量%的（甲基）丙烯酸C4-C24烃基酯、（C）0-5重量%的（甲基）丙烯酸和（D）0-10重量%的可共聚单体，所述共聚物可以如下获得：使80-60重量%乙烯、20-40重量%（甲基）丙烯酸和0-10重量%可共聚单体在反混的连续操作聚合装置中聚合，然后将所得的共聚物用C4-C24烃基醇进行聚合物类似酯化反应。本发明共聚物适合用于改进燃料油的低温流动性能，用于降低低温流动改进剂添加剂混入燃料油中的低混合温度，以及用于改进含有低温流动改进剂添加剂的燃料油的可过滤性。
摘要（英）：

The invention relates to a copolymer having high chemical uniformity, made of (A) 50 to 30 wt % of ethylene, (B) 50 to 70 wt % of C4- to C24-hydrocarbylester of (meth)acrylic acid, (C) 0 to 5 wt % of (meth)acrylic acid, and (D) 0 to 10 wt % of copolymerizable monomers that can be obtained by the polymerization of a mixture of 80 to 60 wt % of ethylene, 20 to 40 wt % of (meth)acrylic acid, and 0 to 10 wt % of copolymerizable monomers in a back mixing, continuously operating polymerization apparatus, and the subsequent polymeric analogous esterification of the copolymer thus obtained with C4- to C24-hydrocarbinols. The copolymer according to the invention is suitable for improving the cold flow properties of fuel oils, for reducing the lower mixing temperature of cold flow improving additives in fuel oils, and for improving the filterability of fuel oils containing cold flow improving additives.

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