Amine salts of azo dyestuffs of the pyridone series
AssigneeCiba-Geigy Corporation
InventorsPaul Lienhard, Gert Hegar
Life of this patent
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Abstract
Azo dyestuff sulfonic acid salts of the formula: ##STR1## wherein A represents a carbocyclic or heterocyclic aromatic radical, B represents an aliphatic, cycloaliphatic or araliphatic amine, X represents a hydrogen atom or a substituted or unsubstituted alkyl group, a cycloalkyl, aralkyl or aryl group, Y represents a hydrogen or halogen atom, a nitro, cyano, acyl, sulfonic acid, arylsulfonyl, alkoxycarbonyl group or a substituted or unsubstituted alkyl, sulfamoyl or carbamoyl group, Z represents a substituted or unsubstituted alkyl group or an aryl radical, m and n are 1 or 2; said dyestuffs salts having good solubility in organic solvents and functioning to color solutions of film forming polymers in yellow to orange shades.
Claims6
An azo dyestuff sulfonic acid salt of the formula:
- ##STR19## or of a tautomer thereof, wherein V is hydrogen, W is hydrogen, methyl or alkoxy of 1 to 4 carbon atoms;
- X.sub.1 is hydrogen, alkyl of 1 to 18 carbon atoms;
- hydroxyalkyl of 1 to 18 carbon atoms;
- alkoxyalkyl of 1 to 18 carbon atoms;
- cyanoalkyl of 1 to 18 carbon atoms;
- cycloalkyl of 6 to 10 carbon atoms;
- aralkyl of 7 to 10 carbon atoms;
- phenyl;
- or phenyl substituted by halogen, alkyl of 1 to 6 carbon atoms or alkoxy of 1 to 6 carbon atoms;
- Y.sub.1 is cyano or CONH.sub.2, HB.sup..sym. is a radical of the formulae:
- ##STR20## in which R.sub.1, R.sub.2 and R.sub.3 are together alkyl of 7 to 24 carbon atoms, each of R.sup.1 and R.sup.3 independently represents hydrogen or a straight chain or branched alkyl radical of 1 to 8 carbon atoms, R.sup.2 represents a straight chain or branched alkyl radical of 1 to 8 carbon atoms and R.sup.4 represents a straight chain or branched alkyl radical of 1 to 18 carbon atoms, or R.sup.1 and R.sup.2 ;
- R.sup.3 and R.sup.4 ;
- or both R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 together with the carbon atom to which they are attached form a cycloaliphatic ring containing 4 to 8 carbon atoms, and wherein each E represents one of the radicals;
- ##STR21## in which each of R.sup.5 and R.sup.6 independently is hydrogen or alkyl of 1 to 4 carbon atoms, R.sup.7 is a straight chain or branched alkyl containing altogether 1 to 18 carbon atoms;
- and m is 1 or 2.
Dependencies are inferred from the claim text.