Fuel oils comprising middle distillates and oils of vegetable or animal origin with improved cold properties

摘要

Fuel oil composition comprises a mineral oil, an oil of vegetable or animal origin, and a cold flow improver comprising a copolymer (I) of ethylene and an acrylic or vinyl ester and a comb polymer (II) comprising alkyl (meth)acrylate, alkyl vinyl ester, alkyl vinyl ether, alkyl (meth)acrylamide, alkyl allyl ether or alkyl diketene units, where the sum R of the molar average alkyl chain lengths in (II) is 11-14. Fuel oil composition comprises a mineral oil, an oil of vegetable or animal origin, and a cold flow improver comprising a copolymer (I) of ethylene and 8-21 mole% of an acrylic or vinyl ester with a C1-C18 alkyl group and a comb polymer (II) comprising alkyl (meth)acrylate, alkyl vinyl ester, alkyl vinyl ether, alkyl (meth)acrylamide, alkyl allyl ether or alkyl diketene units, where the sum R of the molar average alkyl chain lengths of the monomer units in (II) is 11-14.