Arylazoarylazo-substituted azo, azomethine 1:2 chromium complex dyes
US4331596A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1979 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Dec 11, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B45/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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 …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.