METHOD FOR PRODUCING GRANULATED CARBOXYL GROUP-CONTAINING POLYMER PARTICLE AND GRANULATED CARBOXYL GROUP-CONTAINING POLYMER PARTICLE

摘要

Disclosed is a method for simply producing a granulated carboxyl group-containing polymer particle which has high bulk density and is easily swelled with water. Specifically disclosed is a method for producing a granulated carboxyl group-containing polymer particle, which is characterized by comprising a step for producing a carboxyl group-containing polymer particle, a step for forming an agglomerate of the carboxyl group-containing polymer particles by having the carboxyl group-containing polymer particles adsorb a polar organic solvent so that the agglomerate has a liquid content of 5-25% by mass, and a step for drying and then pulverizing the agglomerate of the carboxyl group-containing polymer particles.