Patent ID: 8785637

Claim:
A carboxamide-substituted dye of the formula (I) in which Y=sulfur, selenium, a direct linkage or is NR c ; R 1 , R 3 , R 4 are independently hydrogen, halogen, —O ⊖ , a hydroxyl group, thiol group, amino group, ammonium group, sulfo group, phospho group, nitro group, carbonyl group, carboxyl group, a carboxylic acid group, a nitrile group, isonitrile group, cyanate group, isocyanate group, thiocyanate group, isothiocyanate group or a straight-chain, branched or cyclic saturated or unsaturated hydrocarbon group having up to 40 carbon atoms; R c independently is as defined for R 1 , R 3 , R 4 ; in which R 7 , R 8 , R 9 independently are hydrogen or a straight-chain, branched or cyclic saturated or unsaturated hydrocarbon group having up to 40 carbon atoms; or R 1 together with R 2 is in which R 10 , R 11 , R 13 are as defined for R 1 , R 3 , R 4 ; in which R 16 , R 17 , R 18 are as defined for R 7 , R 8 , R 9 ; R 5 , R 6 , independently are a straight-chain, branched or cyclic saturated or unsaturated hydrocarbon moiety having up to 40 carbon atoms; Cyc1 is selected from aromatic, heteroaromatic, quinoidal and cycloaliphatic rings; Cyc2 is selected from aromatic, heteroaromatic, quinoidal and cycloaliphatic rings; each of said moieties in the dye of the formula (I) being able to form a ring system with one or more neighboring moieties; and X being one or more mono- or multivalent anions, when required for balancing the charge.