Anthraquinone dyes having alkylsulfonylamino substituents
    6.
    发明授权
    Anthraquinone dyes having alkylsulfonylamino substituents 失效
    具有烷基磺酰基氨基取代基的蒽醌染料

    公开(公告)号:US5034547A

    公开(公告)日:1991-07-23

    申请号:US384157

    申请日:1989-07-21

    IPC分类号: C09B1/473

    CPC分类号: C09B1/473

    摘要: New anthraquinone dyes, free of water-solubilizing groups such as --SO.sub.3 H and --CO.sub.2 H comprise anthraquinone substituted with one or more identical or different groups of the formula --NHSO.sub.2 R, wherein R is a substituted or unsubstituted linear, branched, cyclic or polycyclic alkyl group having up to 20 carbon atoms, and wherein the remaining nuclear aromatic carbon atoms of the anthraquinone may be substituted with substituents selected from the group: alkyl; the halogens F, Cl, and Br; cyano; nitro; aminosulfonyl; arylsulfonylamino; and --NHCOQ; wherein Q is hydrogen, an alkyl, an aryl, or a heterocyclic group.These dyes have improved solubility, lowered melting point, and possess outstanding resistance to light-induced fading.