Dispersion aus kationischen Mikrogelpartikeln und Beschichtungszusammensetzung davon.

摘要

Disclosed is a micro gel particle having a cationic charge, which is electrodepositable. The micro gel particle is obtained in the form of aqueous dispersion. The micro gel particle dispersion is prepared by a process comprising emulsifying in an aqueous medium a resin composition comprising (A) 100 parts by weight of a cationic film-forming aqueous resin, and (B) 10 to 250 parts by weight of a thermosetting crosslinking agent which is self-crosslinked or crosslinked with said aqueous resin (A) in terms of condensation or addition reaction; parts by weight being based on the solid content of the resin composition, and heating the resultant emulsion to above a crosslinkable temperature of said crosslinking agent (B).