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173 条记录 (耗时 0.019 秒)

    Ester compound lubricants
    31.
    发明公开
    Ester compound lubricants 失效
    ESTER复合润滑剂

    公开(公告)号：EP0266848A3

    公开(公告)日：1988-10-05

    申请号：EP87202149

    申请日：1987-11-04

    申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

    发明人： Dare-Edwards, Martin Philip

    IPC分类号： C10M105/34 ,  C10M105/36 ,  C10M105/46 ,  C10N40/04

    CPC分类号： C10M105/46 ,  C10M105/34 ,  C10M105/36 ,  C10M105/38 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/283 ,  C10M2207/286 ,  C10M2207/304 ,  C10M2207/34 ,  C10N2240/04 ,  C10N2240/042 ,  C10N2240/044 ,  C10N2240/046 ,  C10N2240/08

    摘要： Use as lubricants, especially for tractive drives, of ester compounds of the general formula I
    wherein Cb denotes a carboxylic grouping which may be monocarboxylic (MCb) of formula -O-CO- or -CO-O-, dicarboxylic (DiCb) of formula -O-CO-R₄-CO-O- or -CO-O-R₄-O-CO-, or tetracarboxylic (TCb) of formula -O-CO-R₅-CO-O-R₆-O-CO-R₅-CO-O-; R₄ represents an optionally substituted alkylene or alkenylene group, a C 5-10 cycloalkylene group, a di-(C 5-10 cycloalkylene) group, or a C 5-10 cycloalkenylene group; R₅ represents an alkylene group and R₆ represents a cycloalkylene group;
    each group R₃ individually represents a C 1-6 alkyl, C 2-6 alkenyl, C 3-20 mono- or polycycloalkyl group or a hydrogen atom; m and n are each 0 or 1;
    R₁ represents an optionally substituted C 4-10 tertiary alkyl group or an optionally substituted C 3-8 cycloalkyl or C 6-14 bicyclo or tricycloalkyl group; and R₂ represents the same as R₁ or alternatively represents an optionally substituted alkyl, alkenyl, mono- or polycycloalkyl, mono or polycycloalkenyl group; provided that when m and n are each 0 and Cb is MCb or DCb wherein R₄ is cyclohexylene, then R₁ and R₂ are not both cyclohexyl.