Patent ID: 7935822

Claim:
A carboxamide-substituted dye of the formula (I) in which Y=oxygen; R 1 , R 3 and 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, carboxylic acid ester, carboxylic acid halide, carboxylic acid amide, carboxylic acid anhydride a nitrile group, isonitrile group, byanate 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; in which R 7 and R 8 , independently are hydrogen or an optionally substituted 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 and R 13 are as defined for R 1 , R 3 and R 4 ; in which R 16 and R 17 are as defined for R 7 and R 8 , R 5 and R 6 independently are a straight-chain, branched or cyclic saturated or unsaturated hydrocarbon group having up to 40 carbon atoms, wherein at least one of R 5 and R 6 comprises a carboxy group; Cyc1 is an organic moiety which comprises a ring system selected from aromatic, heteroaromatic, quinoidal and cycloaliphatic rings; wherein Cyc1 is substituted with —CONR 5 R 6 at the ortho-position of the ring attached to a backbone of formula (I); Cyc2 is an organic moiety which comprises a ring system selected from aromatic, heteroaromatic, quinoidal and cycloaliphatic rings; wherein Cyc2 has a structure selected from (A), (D), (E), (F), (G), (H) or (J), in which R in each case independently is defined as R 1 , R 3 and R 4 ; R 19 , R 20 R 22 and R 23 are independently defined as R 7 and R 8 ; and R 21 is defined as R 7 , and the dashed lines are optionally double bonds in the presence of which the moieties bound via a dashed line are absent, 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; and wherein at least one of R 1 , R 3 , R 4 , R 10 , R 11 , R 13 and R is a sulfo group.