Patent ID: 8361168

Claim:
Trisazo dyes of general formula (IV) and of general formula (V) where M represents a hydrogen atom, a metal cation or an ammonium cation, which optionally may be substituted by one or more alkyl or substituted alkyl groups each having from 1 to 18 C atoms; m, n independently are 0 or 1; A either represents a moiety of general formula (VI) where R 6 , R 7 , R 8 , R 9 , R 10 independently represent a hydrogen atom, a SO 3 M group, a NO 2 group, a COOM group, a CN group, a halogen atom, an ester group, an alkyl or alkoxyl group having each from 1 to 6 carbon atoms, an unsubstituted or substituted amide or sulfonamide group having each up to 12 carbon atoms, wherein the substituents are selected from the group consisting of COOM, OH, OCH 3 , NH 2 , Cl, COOCH 3 and COOCH 2 CH 3 ; or a moiety of general formula (VII) where o is 0 or 1 and R 11 , R 12 , R 13 , R 14 independently represent a hydrogen atom, a SO 3 M group, a NO 2 group, a COOM group, a halogen atom, an ester group, an alkoxyl group having from 1 to 6 carbon atoms, an unsubstituted or substituted amide or sulfonamide group having each up to 12 carbon atoms, wherein the substituents are selected from the group consisting of COOM, OH, OCH 3 , NH 2 , Cl, COOCH 3 and COOCH 2 CH 3 and B either represents a moiety of general formula (VIII) where R 1 , R 2 , R 3 , R 4 , R 5 independently represent a hydrogen atom, a SO 3 M group, a NO 2 group, a COOM group, a CN group, a halogen atom, an ester group, an alkyl or alkoxyl group having each from 1 to 6 carbon atoms, an unsubstituted or substituted amide or sulfonamide group having each up to 12 carbon atoms, wherein the substituents are selected from the group consisting of COOM, OH, OCH 3 , NH 2 , Cl, COOCH 3 and COOCH 2 CH 3 ; or a moiety of general formula (IX) where p is 0 or 1 and R 15 , R 16 , R 17 , R 18 independently represent a hydrogen atom, a SO 3 M group, a NO 2 group, a COOM group, a halogen atom, an ester group, an alkoxyl group having from 1 to 6 carbon atoms, an unsubstituted or substituted amide or sulfonamide group having each up to 12 carbon atoms, wherein the substituents are selected from the group consisting of COOM, OH, OCH 3 , NH 2 , Cl, COOCH 3 and COOCH 2 CH 3 .