C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
8/19, 260/161.3,
C09B 45/16 (2006.01) C09B 62/006 (2006.01) C09B 62/012 (2006.01) D06P 1/10 (2006.01)
Patent
CA 1159051
Abstract of the Disclosure Chromium complex dyes which, in the form of the free acid, have the formula Image (1) wherein Z is hydrogen, nitro, chlorine, or an arylazo group, Q is a nitrogen atom or the CH- group, A is the radical of a coupling component which couples in the ortho-position to the oxygen atom if Q is a nitrogen atom, or is the radical of an o-hydroxyaldehyde if Q is the CH- group, D is a sulfophenyl radical which can be substi- tuted by nitro or chlorine, or a sulfonaphthyl radical which can be substituted by nitro and is bonded to the azo group in the ortho-position to the oxygen atom, and R is a fluorochloropyrimidyl group, or is chloroacetyl, bromoacetyl, .alpha.-chloro- or .alpha.-bromoacryloyl, or .alpha.,.beta.-dichloro- or .alpha.,.beta.-dibromopropionyl. These dyes are obtained by chroming the corresponding o,o'-dihydroxyazo compounds or o,o'- dihydroxyazomethine compounds, the reactive radical R being introduced by acylation before or after the chroming. They are suitable for dyeing natural or synthetic polyamide material.
362679
Buhler Arthur
Schutz Hans U.
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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