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The use is described of polymers which contain, in copolymerized form, an α-olefin, a vinyl ester and an ester of an α,β-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized

The use is described of polymers which contain, in copolymerized form, an α-olefin, a vinyl ester and an ester of an α,β-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.

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1. A method for improving a cold flow property of a fuel oil, the method comprising: adding a cold flow improver additive to a fuel oil in need thereof,wherein the cold flow improver additive comprises a polymer that comprises, in copolymerized form, monomers M1, M2, and M3 of formulae: wherein R1 i

1. A method for improving a cold flow property of a fuel oil, the method comprising: adding a cold flow improver additive to a fuel oil in need thereof,wherein the cold flow improver additive comprises a polymer that comprises, in copolymerized form, monomers M1, M2, and M3 of formulae: wherein R1 is H or C1-C40-hydrocarbyl;R2, R3, and R4 are each independently H or C1-C4-alkyl;R5 is C4-C10-hydrocarbyl;R6, R7, and R8 are each independently H or C1-C4-alkyl;R9 is C1-C20-hydrocarbyl;a molar proportion of M1 in the polymer is from 0.60 to 0.98;a molar proportion of M2 in the polymer is from 0.01 to 0.20;a molar proportion of M3 in the polymer is from 0.01 to 0.20;M2 and M3 are in the polymer in random distribution; anda viscosity of the polymer is from 10 to 1000 m2/s at a temperature of 120° C. as determined according to DIN 51562. 2. The method of claim 1, wherein R2, R3, and R4 are each H. 3. The method of claim 1, wherein M1 is ethylene, propene, or 1-butene. 4. The method of claim 1, wherein M2 is n-butyl acrylate or 2-ethylhexyl acrylate. 5. The method of claim 1, wherein M3 is vinyl acetate. 6. The method of claim 1, wherein M1 is ethylene, M2 is 2-ethylhexyl acrylate, and M3 is vinyl acetate. 7. The method of claim 1, wherein, the polymer has a number average molecular weight from 1,000 to 20,000, a weight-average molecular weight from 1,000 to 30,000, a Mw/Mn ratio from 1.5 to 5.0, or a combination thereof. 8. The method of claim 1, wherein a molar proportion of M1 in the polymer is from 0.80 to 0.90;a molar proportion of M2 in the polymer is from 0.02 to 0.16;a molar proportion of M3 in the polymer is from 0.03 to 0.09; andthe polymer has a number average molecular weight from 1,500 to 5,000, a weight-average molecular weight from 2,000 to 30,000, a Mw/Mn ratio from 1.9 to 3.5, or a combination thereof. 9. The method of claim 1, further comprising: polymerizing, in a free-radical polymerization, thereby obtaining the polymer. 10. The method of claim 1, wherein the method is for improving a cold flow property of at least one fuel oil selected from the group consisting of gasoline, a middle distillate, diesel fuel, low sulfur diesel, ultra-low sulfur diesel, biodiesel, kerosene, heating oil, and low sulfur heating oil. 11. The method of claim 1, further comprising adding a coadditive. 12. The method of claim 1, wherein the additive is a concentrate comprising the polymer in an amount of from 0.1 to 80% by weight based on a total weight of the concentrate, a diluent, and at least one coadditive. 13. The method of claim 1, wherein the adding comprises admixing the polymer with the fuel oil. 14. The method of claim 1, wherein M1 is ethylene. 15. The method of claim 1, wherein the polymer consists of monomers M1, M2, and M3. 16. The method of claim 1, wherein two of R2, R3; and R4 are each H and one of R2, R3, and R4 is methyl. 17. The method of claim 1, consisting essentially of adding the cold flow improver additive to the fuel oil in need thereof.