Otto cycle engine fuels containing derivatives of cyclic polycarboxylic
acids
    1.
    发明授权
    Otto cycle engine fuels containing derivatives of cyclic polycarboxylic acids 失效
    奥托循环包含环状多元羧酸衍生物的发动机燃料

    公开(公告)号:US4004894A

    公开(公告)日:1977-01-25

    申请号:US563051

    申请日:1975-03-28

    CPC分类号: C10L1/1905 C10L1/224 F02B1/04

    摘要: Otto cycle engine fuels, for example gasoline, can be improved to such an extent by additives that no deposits or residues form in the carburetor or on the valves. In accordance with the invention esters, amides or imides of hydroaromatic polycarboxylic acids are added which are very effective in cleaning the carburetor and the valves.

    摘要翻译: 奥托循环发动机燃料,例如汽油,可通过在化油器或阀门上形成沉积物或残留物的添加剂来改善。 根据本发明,添加了水解芳族多元羧酸的酯,酰胺或酰亚胺,其在清洁化油器和阀时非常有效。

    Method of stabilizing mineral oil and its refinery products
    3.
    发明授权
    Method of stabilizing mineral oil and its refinery products 失效
    稳定矿物油及其炼油产品的方法

    公开(公告)号:US4090946A

    公开(公告)日:1978-05-23

    申请号:US701116

    申请日:1976-06-30

    摘要: The method of stabilizing mineral oil and its refinery products by addition thereto of a small stabilizing amount of alternating copolymers of the type. . . A -- B -- A -- B -- A . . .in which A denotes the structural unit of the general formula--C(R.sup.1)(R.sup.2) - CH.sub.2 --where R.sup.1 denotes hydrogen or alkyl of from 1 to 8 carbon atoms and R.sup.2 has the meanings stated for R.sup.1 or denotes a phenyl group, and in which B stands for structural units of the general formulae ##STR1## where R.sup.3 denotes a saturated hydrocarbon radical of from 8 to 20 carbon atoms and R.sup.4 denotes hydrogen or alkyl of from 8 to 20 carbon atoms.

    摘要翻译: 通过添加其稳定矿物油及其炼油产品的方法,该稳定量的这种类型的交替共聚物。 。 。 A - B - A - B - A。 。 。