Patent ID: 7947761
Filing Date: 2011-05-24
Classification: C09D,Y02P

Abstract:
1. An inkjet ink composition comprising: a) a liquid vehicle; b) a pigment comprising a colorant having the formula A-(B) c) a polymeric dispersant comprising a polymeric group and at least one group having the formula-LG-A′-(B) wherein A and A′ are organic chromophore groups; B, which can be the same or different on the pigment when x>1 or the same or different on the polymeric dispersant when y>1, is a substituent on A and A′; C, which can be the same or different when z>1, is a substituent on A′ and is different than B; x, y and z are 0, 1, 2, 3, or 4; and y is less than or equal to x; and wherein A and A′ are the same and the substituents on A and A′ are different.