| 摘要 |
An additive for distillate and a fuel composition having improved cloud point depressant properties. The additive is incorporated into a major proportion of distillate fuel and is a maleic anhydride alpha-olefin copolymer or a polyimide having the following structure: wherein R has at least 80% by weight of a hydrocarbon substituent from about 14 to about 16 carbons, X is oxygen or wherein N is nitrogen and R' has at least 80% by weight of a hydrocarbon substituent from 16 to 18 carbons, and n is from about 2 to about 30 when X is oxygen, and from about 2 to about 17 when X is Alternatively, the cloud point additive can be an ethylene vinyl acetate isobutylene terpolymer.
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