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US 4,540,776 AGranted
Reactive fluorotriazinylaminonaphthotriazolyphenylazopyridone or pyrimidone dyestuffs
AssigneeBayer Aktiengesellschaft
InventorsHermann Henk, Erich Kramer, Karl H. Schundehutte, Horst Nickel
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Abstract
A metal free azo dyestuff of the formula ##STR1## in which K is the radical of a coupling component of pyridone, and R.sub.3 and R.sub.4 each independently is hydrogen; C.sub.1 -C.sub.6 -alkyl; C.sub.1 -C.sub.6 -alkyl substituted by OH, SO.sub.3 H, COOH or OSO.sub.3 H; phenyl; naphthyl; or phenyl or naphthyl substituted by SO.sub.3 H or COOH.
Claims2
A metal free azo dyestuff of the formula ##STR43## in which K is the radical of a pyridone or pyrimidene coupling component, and
- R.sub.3 and R.sub.4 each independently is hydrogen;
- C.sub.1 -C.sub.6 -alkyl;
- C.sub.1 -C.sub.6 -alkyl substituted by OH, SO.sub.3 H, COOH or OSO.sub.3 H;
- phenyl;
- naphthyl;
- or phenyl or naphthyl substituted by SO.sub.3 H or COOH.
3 more elements
Dependencies are inferred from the claim text.