| 摘要 |
Pigment dispersant comprises a 1,4-diketo-3,6-di-(4-biphenyl)-pyrrolo(3,4-c)pyrrole with sulfonamide and optionally sulfonic acid or salt groups. Pigment dispersant comprises a 1,4-diketo-3,6-di-(4-biphenyl)-pyrrolo(3,4-c)pyrrole with sulfonamide and optionally sulfonic acid or salt groups of the formula (I). Q = 1,4-diketo-3,6-di-(4-biphenyl)-pyrrolo(3,4-c)pyrrole group; s = 0.1-4.0; n = 0-2; E<+> = hydrogen (H<+>) cation, the equivalent Mm+/m of a main group 1-5 or sub-group 1, 2 or 4-8 metal cation Mm+ or a (substituted) ammonium cation; Z = Z<1> or Z<4>; Z<1> = -(X-Y)qR<3>; X = (substituted) 2-6 carbon (C) alkylene and/or 5-7 C cycloalkylene; Y = oxygen, piperazin-1,4-diyl and/or -NR<2>. The full definitions are given in DEFINITIONS. Independent claims are also included for: (a) pigment formulations containing organic basic pigment(s) and dispersant(s) (I); (b) pigment preparations consisting of organic basic pigment(s), dispersant(s) (I) and a high-molecular organic material; (c) the preparation of (I); and (d) the preparation of the pigment formulations. |
