Patent ID: 8268909

Claim:
A pigment dispersion, comprising: a. at least one dispersed pigment; an aqueous carrier; and b. at least one block copolymer dispersant having Structure VI which comprises a hydrophobic block (A) and a hydrophilic block (B); wherein, structure VI includes a bifunctional styrene/acrylate/methacrylate to form a double chained dispersant, wherein the double chains may be hydrophobic or hydrophilic segments; R′ is halogen or alkyl derivative group provided that when a vinyl benzyl chloride group is used, R′—CH 2 is not present and the R′CH 2 CH group becomes CH 2 ; x1 is independently selected to be equal or greater than one; and y1 and y2 are independently selected to be equal to or greater than one.