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    Stable,highly concentrated dye solution of anthraquinone dyes in water miscible solvents
    1.
    发明授权
    Stable,highly concentrated dye solution of anthraquinone dyes in water miscible solvents 失效
    水溶性溶剂中稳定的高浓度染料溶液

    公开(公告)号：US3671176A

    公开(公告)日：1972-06-20

    申请号：US3671176D

    申请日：1969-09-08

    Applicant: BASF AG

    Inventor： KAUFMANN OTTO ,  DAEUBLE MANFRED ,  WITSCH HEINZ GUENTER ,  LUEBCKE ENNO ,  BAYEW DIMITER

    IPC: C09B1/26 ,  C09B67/26 ,  C09B1/34

    CPC classification number: C09B1/264 ,  C09B67/0073 ,  Y10S8/917 ,  Y10S8/924

    Abstract: STABLE CONCENTRATED SOLUTIONS OF ANTHRAQUINONE DYES IN SOLVENTS WHICH ARE MISCIBLE WITH WATER AND WHICH ARE USEFUL FOR THE PREPARATION OF DYE LIQUORS FOR DYEING NATURAL OR SYNTHETIC POLYAMIDES. FOR DYEING OR PRINTING NITROGEN FIBROUS MATERIAL, FOR EXAMPLE WOOL, SILK OR SYNTHETIC POLYAMIDE FIBERS, IT IS PRINCIPALLY ANIONIC DYES WHICH ARE USED. THESE DYES ARE USUALLY SUPPLIED IN THE FORM OF FINELY GROUND POWDERS, CONTAINING STANDARDIZING AGENTS, WHICH HAVE TO BE DISSOLVED OR DISPERSED IN THE DYE LIQUOR FOR DYEING. APART FROM THE UNPLEANSANT DUST DEVELOPMENT OF THE INTENSELY COLORING DYES CAUDES BY THE POWDER FORM AND THE RISK OF AGGLOMERATION OF THE DYE POWDER, IT IS BY NO MEANS EASY TO DISSOLVE OR DISPERSE THE SOLID DYE IN THE DYE LIQUOR BECAUSE THE DYE USUALLY HAS INADEQUATE SOLUBILITY IN WATER.

    Ammonium salts of metal complex dyes containing sulphonic acid groups
    3.
    发明专利
    Ammonium salts of metal complex dyes containing sulphonic acid groups 未知

    公开(公告)号：GB981050A

    公开(公告)日：1965-01-20

    申请号：GB1385463

    申请日：1963-04-08

    Applicant: BASF AG

    Inventor： BAUMANN HANS ,  BRUNKHORST WILHELM ,  HENSEL HANS RUPRECHT ,  KAUFMANN OTTO ,  OTTERBACH HANS ,  PUFF WALTER ,  SENNINGER RUDOLF ,  TARTTER ARNOLD

    IPC: C09B45/48 ,  C09B55/00 ,  C09B69/02 ,  C09B69/04

    Abstract: The invention comprises any ammonium salt derived from a 1 : 1 chromium complex of an azo or azomethine dye which contains a sulphonic acid group and a primary, secondary or tertiary amine whose nitrogen atom is substituted by an aliphatic radical containing at least one ether oxygen atom and which aliphatic radical may in turn have aromatic substitution. Among the amines specified for use in the process are 1-methoxy-3-aminopropane, 1 - benzyloxy - 2 - dimethylaminoethane, N - methylmorpholine and 1 - (b - ethyl - hexoxy) - 3 - aminopropane. Among processes described in examples are those in which the 1 : -chromium complex of the azo dye 6 - nitro - 2 - hydroxy - 1 - amino - naphthalene - 4 - sulphonic acid --> 2 - hydroxynaphthalene is boiled with 1-(b -ethyl-hexoxy)-3-aminopropane in aqueous ethanol; 4-nitro-2-aminophenol - 6 - sulphonic acid --> 1 - phenyl-3 - methyl pyrazolone - (5) is reacted with 1 - (b - ethyl - hexoxy) - 3 - aminopropane in aqueous formic acid and 4-nitro-2-aminophenol - 6 - sulphonic acid in aqueous solution is reacted with 2-hydroxy-5-nitrobenz-aldehyde; the product is boiled with aqueous chromium chloride and the product is reacted with 1 - (b - ethylhexoxy) - 3 - amino propane in aqueous acetic acid solution.

    New complex chromium monoazo dyestuffs and their production
    5.
    发明专利
    New complex chromium monoazo dyestuffs and their production 未知

    公开(公告)号：GB879523A

    公开(公告)日：1961-10-11

    申请号：GB1274859

    申请日：1959-04-15

    Applicant: BASF AG

    Inventor： KAUFMANN OTTO ,  BAUMANN HANS

    Abstract: The invention comprises complex metal dyes which contain one atom of chromium bound to two molecules of different metallizable monoazo dyes one of which is of formula:- where X is a metallizable substituent and Z is H, Hlg, or a sulphonamide, alkoxy or carboalkoxyamino radical and A may be substituted with groups such as sulphonamide and dialkyl amide, alkoxy and/or alkyl groups but is free from sulphonic and carboxylic acid groups (apart from X) and of which the other dye is free from sulphonic and carboxylic acid groups except in #s-position to the azo group. The dyes are made by treating a 1, 1-chromium complex of a dye of the above formula with an equimolar quantity of the second dye. The second dye may contain substituents such as halogen, sulphone, alkyl, alkoxy, nitro, acylamino and sulphonamido groups. The dyes are used especially on nitrogenous textile materials, e.g. leather, synthetic polyamides and polyurethanes and wool which they dye in blue, grey, black, brown and green shades from a neutral to weak acid bath. Examples are provided of the preparation of the dyes and c their use in colouring processes. Specifications 745,479 and 766,554 are referred to.

    Azomethine chromium complex dyes derived from pyrazolone sulphonic acids
    7.
    发明专利
    Azomethine chromium complex dyes derived from pyrazolone sulphonic acids 未知

    公开(公告)号：GB1148107A

    公开(公告)日：1969-04-10

    申请号：GB3476066

    申请日：1966-08-03

    Applicant: BASF AG

    Inventor： LUDSTECK DIETER ,  KAUFMANN OTTO

    IPC: C07D231/26 ,  C09B55/00

    Abstract: 1,148,107. Chromium complexes of azomethine dyes. BADISCHE ANILIN- & SODAFABRIK A.G. 3 Aug., 1966 [4 Aug., 1965; 5 Aug., 1965], No. 34760/66. Heading C4P. The invention comprises chromium complexes of azomethine dyes of the general formula wherein Ar is a phenyl or naphthyl radical which bears a hydroxyl or alkoxy group ortho to the N atom of the azomethine link and which may be further substituted, R 1 is an alkyl or aryl group and benzene ring I may bear non- ionic substituents, e.g. halogen, alkyl, aryl, alkoxy or nitro groups. They are prepared by reacting the corresponding benzene or naphthalene primary amine ArNH 2 with an appropriate 1-sulphophenyl-pyrazolone 5-aldehyde(4) or the 4-aldimmonium salt of the aldehyde with simultaneous or subsequent action of a chroming agent. Conventional chroming agents are used in 0À5 to 1À3 equivalents per mol of dye at 80‹ to 130‹ C. in presence of water, monohydric alcohols, polyhydric alcohols or acid amides.

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