| 摘要 |
Cold flow properties of distillate fuel such as diesel fuel are improved by the addition of a small amount of a tetrapolymer of ethylene, a C3-32 alpha -olefin (e.g. hexene-1), vinyl ester of a C1-12 aliphatic monocarboxylic acid (e.g. vinyl acetate) and a vinyl substituted aromatic hydrocarbon (e.g. styrene) having an average molecular weight of 2,000-5,000.
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