| 摘要 |
A composition comprising a major proportion of an oil obtained from methyl esters of animal or vegetable material or both or derivatives thereof, or its mixtures with petroleum-based oils, in admixture with an ethylene-vinyl ester copolymer cold flow additive having at least 17 mole % vinyl ester units and containing 5 or more alkyl branches per 100 backbone methylenes. The copolymer improves the low temperature properties of the oil.
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