Middle distillates of crude oil having improved cold flow...

C - Chemistry – Metallurgy – 10 – L

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C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/195 (2006.01) C10L 1/196 (2006.01) C10L 1/197 (2006.01) C10L 1/236 (2006.01) C10L 1/22 (2006.01)

Patent

CA 2055417

ABSTRACT OF THE DISCLOSURE Crude oil middle distillates with improved cold flow properties, containing small amounts of A. conventional flow improver on an ethylene base, and B. copolymers which consist of a. of 10 to 90 mol-% of one or more alkylacrylates or alkylmethacrylates with C1- to C30-alkyl chains, and b. of 5 to 60 mol-% of one or more ethylenically unsaturated dicarboxylic acids or their anhydrides, and c. of 5 to 60 mol-% of one or several alkylvinylethers with C18- to C28-alkyl side chains, where the quantitative proportion of A to B is 40 to 60 and 95 to 5. -28-

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