Sulphur dyes
    2.
    发明公开
    Sulphur dyes 失效
    Schwefelfarbstoffe

    公开(公告)号:EP0741168A1

    公开(公告)日:1996-11-06

    申请号:EP96810271.5

    申请日:1996-04-29

    IPC分类号: C09B49/00

    CPC分类号: C09B49/00

    摘要: New sulphur dyes comprising in their preparation at least one sulphur dye intermediate of the formula (I)

    wherein R and R 1 are independently nitro, nitroso or amino, are produced by including in their preparation at least one modifying agent selected from the group of: (A) an aldehyde; (B) urea; (C) a benzoquinone or naphthoquinone; and (D) monoethanolamine or by treating an already prepared sulphur dye involving such an intermediate in its preparation, with at least one aldehyde (A), benzoquinone or naphthoquinone (C) or with monoethanolamine (D).

    摘要翻译: 在其制备中包含至少一种式(I)的硫化染料中间体的新型硫化染料其中R和R 1独立地是硝基,亚硝基或氨基,是通过在其制备中包含至少一种选自以下的改性剂来制备的: 的:(A)醛; (B)尿素; (C)苯醌或萘醌; 和(D)单乙醇胺,或者通过用至少一种醛(A),苯醌或萘醌(C)或单乙醇胺(D)处理在其制备中涉及这种中间体的已经制备的硫染料。