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US 4,400,322 AGranted
Disperse monoazo dyestuffs
AssigneeImperial Chemical Industries PLC
InventorsPeter W. Austin, Brian R. Fishwick
Life of this patent
Estimating the term…
Abstract
Disperse monoazo dyestuffs from 2,3-, 3,4- or 2,5-dicyanoanilines as diazo components and N,N-dialk(en)yl-anilines having an acylamino or alkoxycarbonyl group in the 3-position as coupling components. The dyestuffs give red shades on synthetic textile materials.
Claims3
Disperse monoazo dyestuffs having the general formula (I) ##STR8## wherein Z is --COR, --SO.sub.2 R or --CO.sub.2 R, in which R is optionally substituted alkyl, or optionally substituted aryl,
- R.sup.1 is hydrogen, alkyl of 1 to 8 carbon atoms or alkenyl of 3 to 8 carbon atoms, and
- R.sup.2 is alkyl of 1 to 8 carbon atoms or alkenyl of 3 to 8 carbon atoms.
Dependencies are inferred from the claim text.