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US 5,795,971 AGranted
Aminomethylnaphthalenecarboxlic acid dyestuffs
AssigneeBayer Aktiengesellschaft
InventorKlaus Kunde
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Abstract
The novel aminomethylnaphthalenecarboxylic acid dyestuffs of the formula (I) ##STR1## in which the substituents and indices have the meaning given in the description, are outstandingly suitable for dyeing cellulosic materials, in particular paper.
Claims12
A dyestuff of the general formula (I) ##STR29## in which A and K independently of one another represent in each case optionally substituted phenyl or naphthyl,
- R represents hydrogen, an unsubstituted acyl radical or a 1,3,5-triazine or pyrimidine radical, each of which is substituted in an identical or different manner by chlorine, fluorine or an aniline or naphthyl-amine radical which is substituted by .beta.-sulfatoethylsulfonyl or vinylsulfonyl,
- X represents C.sub.1 -C.sub.3 -alkyl,
- the carboxyl group is bonded in position 6 or 7,
- m and n represent 0 or 1, where n represents 1 if m represents 0, and
- v represents 0 or 1, with the proviso that v+m.gtoreq.1.
2 more elements
The compound of the formula ##STR34##
Dependencies are inferred from the claim text.