Fuel composition
    104.
    发明授权
    Fuel composition 失效
    燃油组成

    公开(公告)号:US4936868A

    公开(公告)日:1990-06-26

    申请号:US225997

    申请日:1988-07-29

    Abstract: Certain poly(olefin)-N-substituted carbamates are useful to prevent or reduce engine deposits alone or in combination with certain poly(olefin) polymers or hydrogenated forms of the polymers. A motor fuel composition and method of operating an internal combustion engine using said poly(olefin)-N-substituted carbamates are claimed.

    Abstract translation: 某些聚(烯烃)-N-取代的氨基甲酸酯可用于单独或与某些聚(烯烃)聚合物或氢化形式的聚合物组合来防止或减少发动机沉积物。 要求保护使用所述聚(烯烃)-N-取代的氨基甲酸酯的运转燃料组合物和操作内燃机的方法。

    Esters of unsaturated carboxylic acids
    105.
    发明授权
    Esters of unsaturated carboxylic acids 失效
    不饱和羧酸酯

    公开(公告)号:US4762946A

    公开(公告)日:1988-08-09

    申请号:US851981

    申请日:1986-04-14

    CPC classification number: C10L1/1963 C08F20/28 C10L1/1983 C10L1/2364

    Abstract: Polymeric pour point depressants are described which are prepared from new esters of .alpha.,.beta.-olefinically unsaturated carboxylic acids of the formulaR.sub.1 --CO--[--O--A--CO--]--.sub.n ORwhereinR.sub.1 --CO-- is an .alpha.,.beta.-olefinically unsaturated carboxylic acid residue containing from 3 to 6 carbon atoms,R is a saturated or unsaturated hydrocarbon radical containing from 10 to 24 carbon atoms,--[--O--A--CO--]-- is a residue of a hydroxycarboxylic acid having from 2 to 6 carbon atoms,A is an aliphatic radical having from 1 to 5 carbon atoms, andn is a number having a value of from 1 to 18.

    Abstract translation: 描述了由式R1-CO - [ - OA-CO - ] - nOR的α,β-烯属不饱和羧酸的新酯制备的聚合倾点下降剂,其中R1-CO-是α,β-烯属不饱和的 含有3至6个碳原子的羧酸残基,R是含有10至24个碳原子的饱和或不饱和烃基, - [ - OA-CO - ] - 是具有2至6个碳原子的羟基羧酸的残基 A是具有1至5个碳原子的脂族基团,n是1至18的数值。

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