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US 4,051,134 AGranted
Reactive dyestuffs
AssigneeBayer Aktiengesellschaft
InventorsAdolf Friedrich, Horst Harnisch, Roderich Raue
Life of this patent
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Abstract
Reactive dyestuffs of the formula ##STR1## wherein W, T, T', n, R, R.sub.1, R.sub.2, p and Z have the meaning given in the description, their preparation and their use for dyeing and printing materials containing N and materials containing hydroxyl groups, especially fibre materials. The dyestuffs are particularly suitable as fluorescent dyestuffs for dyeing or printing natural and synthetic polyamides and natural and regenerated cellulose, especially cotton. They combine a high fixing yield with outstanding wet fastness properties.
Claims2
Compound of the formula:
- ##STR14## wherein W is a direct bond, C.sub.1 -C.sub.4 -alkylene;
- cyclopentylene;
- cyclohexylene;
- cyclopentylene or cyclohexylene substituted with methyl, ethyl, or propyl but each containing no more than 8 carbon atoms;
- or phenylene;
- T and T' are sulphonic acid, sulphonic acid alkali metal salt, or sulphonic acid ammonium salt, and n is 0 or 1;
- R is hydrogen;
- C.sub.1 -C.sub.4 -alkyl;
- C.sub.1 -C.sub.4 -alkyl substituted with hydroxyl, methoxy or ethoxy;
- benzyl;
- phenethyl;
- benzyl or phenethyl substituted with methyl, ethyl, methoxy, ethoxy or chlorine;
- phenyl;
- tolyl;
- xylyl;
- phenyl substituted with hydroxy, methoxy or ethoxy;
- cyclopentyl;
- cyclohexyl;
- or cyclopentyl or cyclohexyl substituted with methyl or ethyl if n is 1;
- or sulfo-C.sub.1 -C.sub.4 -alkyl;
- sulphophenyl;
- sulphotolyl;
- sulphobenzyl;
- sulphophenethyl;
- or sulfocycloalkyl if n is 0;
- R.sub.1 and R.sub.2 are hydrogen, F, Cl, Br, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, nitro, cyano, carbo-C.sub.1 -C.sub.5 -alkoxy, phenyl, or benzyl;
- p is 1, 2 or 3;
- and
- Z is a polyamide- or cellulose-fiber reactive group comprising at least one reactive substituent bonded to a 5-membered or 6-membered heterocyclic ring containing at least one nitrogen atom.
26 more elements
Dependencies are inferred from the claim text.