Patent ID: 9303170
Filing Date: 2016-04-05
CPC Classification: C08K,C09D

Claim Text:
1. An aqueous pigment dispersion comprising a dispersed pigment, an aqueous carrier and a polymeric dispersant; wherein said polymeric dispersant is a random or structured polymer and comprising at least three monomers A, B and C; wherein monomer A is a hydrophobic acrylate monomer, monomer B is a hydrophilic acrylic monomer, and monomer C is an acrylate monomer with the O atom on the ester bonding, either directly or via a linking group containing 1-10 carbon atoms, to a carbon or heteroatom of a monocylic or bicyclic heterocycle containing N, S or O atoms on the ring, wherein said heterocycle is selected from the group consisting of imidazole, oxazolidinone, thiazolidinone, benzimidazole, triazole, thiazole, benzothiazole, pyrimidine, pyridazine and glycoside, and wherein the carbon atoms on the ring of said heterocycle are optionally substituted with one or more R 1 , OR 2 , SR 2 or NR 3 R 4 , and the N atom or atoms on the ring of said heterocycle are optionally substituted with R 1 or —R 5 OR 2 ; each R each R each R each R