Cold flow improvers for fuel oils of vegetable or animal origin

Details Cold flow improvers for fuel oils of vegetable or animal origin Cold flow improvers for fuel oils of vegetable or animal origin

C - Chemistry, Metallurgy

10

L

C10L 1/18 (2006.01) C08L 23/08 (2006.01) C08L 33/06 (2006.01) C08L 91/00 (2006.01) C10L 1/14 (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 2486040

Cold flow improvers for fuel oils of vegetable or animal origin The invention provides a fuel oil composition comprising a fuel oil of animal or vegetable origin and an additive comprising A) at least one copolymer of ethylene and 8 - 21 mol% of at least one acrylic or vinyl ester having a C1-C18-alkyl radical and B) at least one comb polymer containing structural units having C8-C16-alkyl radicals, the structural units being selected from C8-C16-alkyl (meth)acrylates, C8-C16-alkyl vinyl esters, C8-C16-alkyl vinyl ethers, C8-C16-alkyl (meth)acrylamides, C8-C16-alkyl allyl ethers and C8-C16-diketenes, where the sum R (See formula I) is the molar average of the carbon chain length distributions in the alkyl radicals of the monomers B) is from 11.0 to 14.0, where m1, m2, ... m g are the molar fractions of the abovementioned monomers B) in the polymer and the sum of the molar fractions m1 to m g = 1, w1i, w1j..w2i, w2j...w gp are the proportions by weight of the individual chain lengths i, j, .... p of the alkyl radicals of the different monomers B) 1 to g, and n1i, n1j..n2i, n2j...n gp are the chain lengths of the alkyl radicals i, j, .... p of the monomers B) 1 to g.

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