Patent ID: 7408061

Claim:
A rylene dye of the general formula I where the variables are defined as follows: R 13 is hydrogen; C 1 -C 30 -alkyl whose carbon chain may be interrupted by one or more —O—, —S—, —NR 1 —, —CO— and/or —SO 2 — moieties and may be mono- or polysubstituted by carboxyl, sulfo, hydroxyl, cyano, C 1 -C 6 -alkoxy and/or a 5- to 7-membered heterocyclic radical which is bonded via a nitrogen atom and may contain further heteroatoms and be aromatic; C 5 -C 8 -cycloalkyl whose carbon framework may be interrupted by one or more —O—, —S— and/or —NR 1 — moieties and may be mono- or polysubstituted by C 1 -C 6 -alkyl; aryl or hetaryl which may each be mono- or polysubstituted by C 1 -C 18 -alkyl, C 1 -C 6 -alkoxy, halogen, hydroxyl, cyano, carboxyl, —CONHR 2 , —NHCOR 2 and/or aryl- or hetarylazo, each of which may be substituted by C 1 -C 10 -alkyl, C 1 -C 6 -alkoxy, halogen, hydroxyl, cyano and/or carboxyl; R′ is bromine; cyano; —NR 3 2 ; aryloxy, arylthio, hetaryloxy or hetarylthio, each of which may be mono- or polysubstituted by C 1 -C 12 -alkyl, C 1 -C 12 -alkoxy, cyano, —CONHR 2 and/or —NHCOR 2 ; C 3 -C 18 -alk-1-ynyl whose carbon chain may be interrupted by one or more —O—, —S—, —NR 1 —, —CO— and/or —SO 2 — moieties and may be mono- or polysubstituted by —COOR 1 , —SO 3 R 1 , hydroxyl, cyano, C 1 -C 6 -alkoxy, C 5 -C 8 -cycloalkyl, aryl and/or a 5- to 7-membered heterocyclic radical which is bonded via a nitrogen atom and may contain further heteroatoms and be aromatic; R 1 is hydrogen or C 1 -C 6 -alkyl; R 2 is hydrogen; C 1 -C 18 -alkyl; aryl or hetaryl, each of which may be substituted by C 1 -C 8 -alkyl, C 1 -C 6 -alkoxy, halogen, hydroxyl and/or cyano; R 3 is hydrogen; C 1 -C 18 -alkyl; aryl or hetaryl, each of which may be substituted by C 1 -C 8 -alkyl, C 1 -C 6 -alkoxy, halogen, hydroxyl and/or cyano; both R 3 radicals may be joined to give a 5- to 7-membered heterocyclic radical which contains the nitrogen atom and is bonded via it; X, Y are both hydrogen or bonded together to form a six-membered ring in a radical of the formula Ia where X is the —NH— group and Y is the other free chemical bond; n is 2, 3, 4 or additionally 1 when X and Y are a radical of the formula Ia; n′ is from 1 to 4; m is from 0 to 6.