Azo, azo methine 1:2 chromium complex dyes

Details Azo, azo methine 1:2 chromium complex dyes Azo, azo methine 1:2 chromium complex dyes

1974-12-04

1976-08-31

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260146R, 260147, 260148, 260149, 260150, 260156, 260159, 260193, 260196, 260197, 260198, 260199, 260200, 260206, 260310A, 260518R, 260566R, 260575, 260578, C09B 4516, C09B 4526, C09B 5500, D06P 324

Patent

active

039780376

ABSTRACT:
1:2 Chromium complex dyes of the formula ##SPC1##
Wherein A represents the radical of a diazo component, B represents the radical of a coupling component, --X-- is --O--, --NH--, ##EQU1## --Y-- is --O-- or --COO--, R.sub.1 is hydrogen or alkyl and R.sub.2 is a radical of the benzene or naphthalene class which is substituted by a carboxy or a sulpho group, K.sup.+ represents a cation, and wherein the benzene ring b can carry a further fused benzene ring or can be substituted by halogen, nitro, low molecular alkyl or alkoxy as well as arylazo groups, and the radicals A and B are devoid of --SO.sub.3 H and --COOH groups. These dyes are useful for dyeing and printing natural and synthetic polyamides to produce level dyeings of good fastness, especially fastness to pulling, water and perspiration.

REFERENCES:
patent: 2711404 (1955-06-01), Schetty
patent: 2814614 (1957-11-01), Zickendraht
patent: 2855393 (1958-10-01), Schetty et al.
patent: 2985646 (1961-05-01), Schetty et al.
patent: 3189594 (1965-06-01), Neier
patent: 3391132 (1968-07-01), Beffa et al.

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