| 摘要 |
The invention relates to a compound of the 1-aminoanthraquinone, anthanthrone, anthrapyrimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (I) wherein R1 is methyl or ethyl, R2 is C6-C24alkyl, C6-C24alkenyl or C7-C24aralkyl, R3 and R4 are each independently of the other a chain consisting 1, 2 or 3 members, each member independently of any other(s) being (CH2))2O-, -(CH2)3O-, CH(CH3)CH2O-, -CH2CH(CH3)-O- or -CH2CH(CH2O-)O-and the chains being terminated by H, CH<CUSTOM-CHARACTER FILE="US06827774-20041207-P00900.TIF" ALT="custom character" HE="20" WI="20" ID="CUSTOM-CHARACTER-00001"/>3, <C>2<H>5 ?or C(=O)CH3, m is a number from 0.3 to 1.0 and n is 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. |
