Patent ID: 8753550

Claim:
A pigment composition, comprising: (a) (a1) carbon black or (a2) an organic pigment comprising a chromophore Q 1 comprising a group of formula (I), or a cis/trans isomer thereof, wherein Z 1 and Z 2 are each independently of the other, O or N—, each C· is independently of all other C·, a carbon atom with an electron in a p orbital, and n is an integer from 1 to 4; and (b) from 0.5 to 30 moles, based on 3.5·10 4 g of the carbon black (a1) or 100 moles of the organic pigment (a2), of a compound comprising a chromophore of formula (II), wherein, Q 2 is an m-valent residue of carbon black or of the chromophore Q 1 ; G 1 is with one extremity of G 1 attached to an aromatic C atom in a meta position relative to Q 2 and another extremity of G 1 attached to the aromatic C atom in a para position relative to Q 2 ; R 8 has, independently from R 4 the same definition as R 4 ; R 1 , R 2 and R 3 are each, independently of the others H, halogen, OH, NH 2 , NO 2 , R 7 , OR 7 , SR S , NR 6 R 7 , COR 7 , CO 2 R 7 , CONR 6 R 7 or SO 2 R 7 ; each R 4 is, independently from any other R 4 , H or R 7 ; each R 5 is, independently from any other R 5 , H, halogen, OH, NH 2 , NO 2 , R 7 , OR 7 , SR 7 , NR 6 R 7 , COR 7 , CO 2 R 7 , CONR 6 R 7 or SO 2 R 7 ; R 6 is H, a direct bond to a geminal R 5 or R 7 thus forming a 3- to 8-membered homo- or heterocyclic ring, or R 7 which is independently from any other R 7 ; each R 7 is, independently of any other R 7 , C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkenyl, C 2 -C 8 alkinyl or C 3 -C 8 cycloalkenyl which are each unsubstituted or substituted with at least one substituent selected from the group consisting of a halogen, an amino and a hydroxy, and are uninterrupted or interrupted by one or more —O—, —S—, —NH— or —N(C 1 -C 4 alkyl)-; and m is an integer from 1 to 4.