Cloud point depressants for middle distillate fuels
    35.
    发明授权
    Cloud point depressants for middle distillate fuels 失效
    中间馏分燃料的浊点抑制剂

    公开(公告)号:US6143043A

    公开(公告)日:2000-11-07

    申请号:US351652

    申请日:1999-07-13

    Inventor: Maged G. Botros

    CPC classification number: C10L1/1966 C10L1/2364

    Abstract: 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: ##STR1## wherein R has at least 80% by weight of a hydrocarbon substituent from about 14 to about 16 carbons, X is oxygen or ##STR2## 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 ##STR3## Alternatively, the cloud point additive can be an ethylene vinyl acetate isobutylene terpolymer.

    Abstract translation: 用于馏出物的添加剂和具有改善的浊点抑制剂性质的燃料组合物。 添加剂被加入到主要比例的馏出物燃料中,并且是具有以下结构的马来酸酐α-烯烃共聚物或聚酰亚胺:其中R具有至少80重量%的从约14至约16个碳的烃取代基,X 是氧或其中N是氮,R'具有至少80重量%的碳原子数为16〜18的烃取代基,当X为氧时,n为约2〜约30,当X为氧时为约2〜约17 或者,浊点添加剂可以是乙烯乙酸乙烯酯异丁烯三元共聚物。

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