Ethylene / vinyl acetate / unsaturated ester terpolymer as an additive that improves the cold resistance of liquid hydrocarbons, such as medium distillates and fuels or fuels

摘要

Use as an additive that improves the cold resistance and filterability of the fuels of at least one copolymer comprising - from 81 to 87 mol% of at least one alpha-olefin, - from 10.5 to less than 12 mol% of at least one vinyl ester, - from 1 to 8.5 mol% of at least one unsaturated alpha-beta monocarboxylic acid ester, said copolymer inscribed in an ABCD quadrilateral in which A, B, C and D represent the vertices of said quadrilateral and correspond to the molar percentages of at least the vinyl ester and at least the unsaturated alpha-beta monocarboxylic acid ester: A: 12; 1 B: 12; 6 C: 10.5; 4 D: 10.5; 8.5.