| abstract |
The present invention includes at least one dispersed pigment, an aqueous carrier, and a copolymer prepared by polymerization of at least one macromonomer (1) having terminal olefinic unsaturation and a mixture of olefinically unsaturated monomers (2). An aqueous pigment dispersion, wherein the macromonomer (1) is 1a) 5 to 100% by weight of at least one polymerized acid-functional unsaturated monomer, 1b) optionally at least one polymerized hydroxy-functional unsaturated monomer, And optionally 1c) comprising at least one other polymerized olefinically unsaturated monomer, the mixture of olefinically unsaturated monomers (2) being 2a) 5 to 80% by weight of at least one unsaturated vinyl aromatic monomer, 2b) having a 5- or 6-membered ring containing at least one ring nitrogen atom not bonded to a hydrogen atom Comprising at least one polar heterocyclic group, containing 5 to 50 wt% of at least one vinyl monomer, and possibly 2c) other olefinically unsaturated monomers, an aqueous pigment dispersion. |