Aqueous dispersion of cationic crosslinked resin particles and its usage.

摘要

Micro gel particles having a cationic charge, are prepared by a radical polymerisation, and obtained in the form of an aqueous dispersion. The micro gel particle dispersion is prepared by dispersing or emsulsifying in an aqueous medium (A) a cationic aqueous resin and (B) a resin having at least two polymerisation vinyl groups and a number average molecular weight of 400 to 20,000, followed by radical-polymerisation.