Patent ID: 8901227
Filing Date: 2014-12-02
Classification: C08F,C09J,D21H

Abstract:
1. A finely divided, cationic, aqueous polymer dispersion, obtained by a process comprising: (I) solution polymerizing, in a partly to completely water-miscible solvent, in the presence of a polymerization initiator, a first monomer mixture comprising to obtain a cationic prepolymer; then (II) adding water to a solution/dispersion of the cationic prepolymer, to obtain an aqueous solution of the cationic prepolymer; and thereafter (III) in the aqueous solution of the prepolymer, emulsion polymerizing, in the presence of the polymerization initiator, a second monomer mixture comprising wherein at least one selected from the group consisting of the solution polymerizing (I) and the emulsion polymerizing (III) is performed in the presence of 0 to 10% by weight of at least one polymerization regulator.