Water-soluble anthraquinone dyestuffs
    3.
    发明授权
    Water-soluble anthraquinone dyestuffs 失效
    水溶性蒽醌DYESTUFFS

    公开(公告)号:US3663576A

    公开(公告)日:1972-05-16

    申请号:US3663576D

    申请日:1969-08-06

    Applicant: HOECHST AG

    CPC classification number: C09B62/445

    Abstract: WATER-SOLUBLE ANTHRAQUINONE DYESTUFF HAVING IN FORM OF THE FREE ACID FORMULA

    1-NH2,2-HSO3,4-(H2O3P-O-CH2-CH2-SO2-X-(PHENYLENE)-NH-),

    (HO3S-)N-ANTHRAQUINONE

    IN WHICH X REPRESENTS A DIRECT LINKAGE,-CH2-, -CH2CH2-,-NH-OR-N(LOWER ALKYL)-, THE BENZENE NUCLEUS IS UNSUBSTITUTED OR SUBSTITUTED BY HYDROGEN, METHYL, LOWER ALKOXY, CARBOXYL, CHLORINE OR BROMINE, AND N STANDS FOR 0 OR 1, THE SAID DYESTUFFS BEING SUITABLE FOR THE DYEING OR PRINTING OF LEATHER OR OF FIBROUS MATERIALS CONSISTING OF WOOL, SILK, LINEAR POLYMIDES, NATIVE OR REGENERATED CELLULOSE FIBRES, THE DYEINGS OR PRINTS OBTAINED ON SAID MATERIALS BEING DISTINGUISHED BY VERY GOOD FASTNESS PROPERTIES TO WETTING AND TO LIGHT.

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