Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1979-12-11
1982-05-25
Higel, Floyd D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260145B, 260147, 260149, 260150, 260151, 260158, 260186, 260191, C09B 4506, C09B 4516, C09B 4526, D06P 332
Patent
active
043315968
ABSTRACT:
1:2 Chromium complex dyes of the formula ##STR1## wherein A is the radical of a diazo component of the benzene or naphthalene class which carries the complex forming group X in ortho-position to the azo group, B is the radical of a coupling component which couples in ortho-position to the oxy group, D is the radical of an amine of the benzene or naphthalene class which carries the complex-forming group in ortho-position to the azo group, X is an oxygen atom or a --CO--O-- group, Ar is an aromatic carbocyclic radical. Ar' and A" are aromatic carbocyclic or heterocyclic radicals, q is an integer from 0 to 5, n is an integer from 1 to 3, m is an integer from 0 to 2 and p is 0 or 1, but the sum of n+m may be at most 3, and wherein the benzene ring can carry a further fused benzene ring or can be substituted by halogen, nitro, alkyl or alkoxy, and K.sup.+ is a cation. The water-insoluble dyes are useful in dyeing polyamide textile material and for coloring leather, oil vanishes, and paper as well as viscose, polyamide, cellulose ether and cellulose ester spinning compositions, and the water-soluble dyes are useful in dyeing leather, wool, silk, casein, polyamide and polyurethane fibers and furs; and the dyes possess good covering power and fastness properties.
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Venkataraman, "The Chemistry of Synthetic Dyes", vol. III, pp. 309 and 310 (1970).
Back Gerhard
Beffa Fabio
Ciba-Geigy Corporation
Higel Floyd D.
McC. Roberts Edward
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