The invention relates to a compound of the 1-aminoanthraquinone, anthanthzone, anthrapynimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (1) wherein R
1
is methyl or ethyl, R
2
, R
3
? and R
4
are each independently of the others C
6
-C
24
alkyl or C
6
-C
24
alkenyl, m is a number from 0.3 to 1.0 and n is a number from 0 to (1.0 m), the compound being suitable for use as a pigment dispersant and rheology improver. Also claimed are modified pigments having that compound on their surface, and also pigment compositions and dispersions comprising that compound.
1
本发明涉及一种 1-
氨基
蒽醌、
蒽酮、
蒽炔脒、
喹吖啶酮、二噁嗪、二酮
吡咯、黄
蒽酮、
茚蒽酮、
异吲哚啉酮、异维
蒽酮、紫铆酮、紫铆烯、
酞菁、
吡喃酮或
硫代靛蓝系列的化合物,该化合物具有一个或多个式 (1) 的
磺酸基团,其中 R
1
是甲基或乙基,R
2
, R
3
与quest;以及R
4
分别独立为 C
6
-C
24
烷基或 C
6
-C
24
烯基,m 为 0.3 至 1.0 之间的数值,n 为 0 至(1.0 m)之间的数值,该化合物适合用作
颜料分散剂和流变改进剂。本发明还涉及表面含有该化合物的改性
颜料,以及含有该化合物的
颜料组合物和分散体。
1