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US 5,328,995 AGranted
Azo dyes containing triazine middle components and a 1,4-phenylene-2,5-disubstituted coupling component
AssigneeCiba-Geigy Corporation
InventorsRudolf Schaulin, Urs Lauk
Life of this patent
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Abstract
The compounds of the formula ##STR1## where the substituents are as defined in claim 1, are direct dyes for various substrates, in particular cellulosic fibre materials. They are high temperature resistant and therefore are particularly highly suitable for the one-bath, single-stage dyeing of polyester/cotton blend fabrics with a disperse dye for the polyester fibres under the dyeing conditions for polyester fibres.
Claims15
A compound of the formula ##STR98## where R and R' are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl,
- R.sub.1 is chlorine, hydroxyl-substituted (in the alkyl moiety) N-mono- or N,N-di-C.sub.1 -C.sub.4 alkylamino, or morpholino,
- X is a bridge member of the formula ##STR99## where R.sub.5 and R'.sub.5 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.6 and R'.sub.6 are each independently of the other hydrogen, sulfo, methyl, methoxy or chlorine,
- n is 0 or 1,
- A is a radical of the formula ##STR100## where R.sub.2 and R.sub.3 are each independently of the other C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or unsubstituted or hydroxyl-substituted (in the alkyl moiety) C.sub.2 -C.sub.4 alkanoylamino and the phenyl radical (a) contains no further substituents or is further substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, hydroxyl, carboxyl, unsubstituted or hydroxyl-substituted C.sub.2 -C.sub.4 alkanoylamino or unsubstituted or sulfo-, C.sub.1 -C.sub.4 alkyl-, C.sub.1 -C.sub.4 alkoxy-, halogen- or hydroxyl-substituted 1- or 2-napthylazo or phenylazo, A' has the meaning A or is a radical of the formula ##STR101## where (R'.sub.4).sub.0-2 represents from 0 to 2 identical or different radicals selected from the group consisting of methyl, methoxy, sulfo, chlorine, hydroxyl and carboxyl,
- (R.sub.7).sub.1-3 represents from 1 to 3 identical or different substituents selected from the group consisting of sulfo, methyl, methoxy, chlorine and o-, m- or p-sulfophenylazo,
- R.sub.8 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl,
- R.sub.9 is sulfomethyl, cyano or carbamoyl, and
- (R.sub.10).sub.0-2 represents from 0 to 2 identical or different radicals selected from the group consisting of methyl, methoxy, sulfo, hydroxyl, amino, acetylamino and hydroxyacetylamino.
5 more elements
Dependencies are inferred from the claim text.