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2 条记录 (耗时 0.009 秒)

    GASOLINE COMPOSITION
    1.
    发明公开
    GASOLINE COMPOSITION 失效
    汽油组合

    公开(公告)号：EP0756617A1

    公开(公告)日：1997-02-05

    申请号：EP94903787.0

    申请日：1993-12-13

    申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

    发明人： JOHNSON, Thomas, Howard

    IPC分类号： C07C217 ,  C07C255 ,  C08G65 ,  C10L1 ,  C10L10

    CPC分类号： C10L1/2225 ,  C07C217/50 ,  C07C255/15 ,  C08G65/33365 ,  C10L1/143 ,  C10L1/2286 ,  C10L1/238 ,  C10L1/2387 ,  C10L10/04

    摘要： The present invention provides gasoline compositions and gasoline additive concentrates containing compounds of general formula (I), wherein R1 represents a hydrogen atom or an alkyl, aryl or alkaryl group; R2O is a residue of a polyether mono-ol or a hydrocarbyl mono-ol of formula R2OH; and R?3 and R4¿ each represent a hydrogen atom or together represent a carbon-carbon single bond, wherein when R?3 and R4¿ each represent a hydrogen atom, then each of R?5 and R6¿ independently represents a group -CH¿2N(R?7)2 in which each R7 independently represents a hydrogen atom or an optionally substituted alkyl group, and when R?3 and R4¿ together represent a carbon-carbon single bond, then R?5 and R6¿ each represent a cyano group; use of the compounds of formula (I) as gasoline additives for reducing intake valve deposit formation; novel compounds, being compounds of formula (I) above, with the proviso that when R1 is a hydrogen atom or a C¿1?-C4 alkyl group, R?3 and R4¿ together represent a carbon-carbon single bond, and R?5 and R6¿ each represent a cyano group, then R2O is a residue of a polyether mono-ol of formula R2OH; and a process for the preparation of the novel compounds of formula (I).