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US 5,070,193 AGranted
Reactive phthalocyanine dyestuffs
AssigneeBayer Aakatiengesellschaft
InventorsKarl H. Schundehutte, Manfred Groll, Josef W. Stawitz
Life of this patent
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Abstract
Novel reactive dyestuffs of the formula ##STR1## having the substituent meanings specified in the description are highly suitable for dyeing and printing hydroxyl- and amido-containing textile materials. They produce very fast dyeings and prints in high yields.
Claims4
A reactive dyestuff of the formula ##STR11## where NiPc=radical of a nickel phthalocyanine,
- R.sup.1, R.sup.2 =H, unsubstituted C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkyl substituted by OH--, COOH--, OSO.sub.3 H, or SO.sub.3 H,
- B=unsubstituted phenylene;
- phenylene substituted by C.sub.1 C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, cyano, COOH, SO.sub.3 H, carboxamide, sulphonamide, C.sub.1 -C.sub.4 -alkylcarbonylamino or NHCONH.sub.2 ;
- C.sub.2 -C.sub.8 -alkylene or phenyl-C.sub.1 -C.sub.4 -alkylene,
- a=2.5 to 3.1, and
- b=1.2 to 0.9,
- a+b being less than or equal to 4.
4 more elements
Dependencies are inferred from the claim text.