AQUEOUS DISPERSION OF CATIONIC PARTICULATE GEL AND PROCESS FOR THE PREPARATION THEREOF

摘要

A process for preparing an aqueous dispersion of a cationic fine grain gel, comprising microemulsion polymerizing (polymerizing in microemulsions) an unsaturated monomer M under the presence of a polymer P which contains 30 to 92.5 % by mole of a nonionic structure unit (a) and 70 to 7.5 % by mole of a quarternary ammonium group-containing structure unit (b), and which contains the specific amount of a specific structure unit (b1) having a quarternary ammonium group and a polymerizable double bond, and an aqueous dispersion of a cationic fine grain gel obtainable by the process.