Patent ID: 6894090
Filing Date: 2005-05-17
Classification: C08J,G03G

Abstract:
1. A method for producing an aqueous dispersion of thermoplastic resin microparticles, which comprises: the first step of swelling a self-water-dispersible thermoplastic resin (P) using an organic solvent (S) having a boiling point lower than 100° C., which does not dissolve but can swell the self-water-dispersible thermoplastic resin (P), to produce a swollen material; the second step of dispersing the swollen material into an aqueous medium in the form of microparticles to produce an initial aqueous dispersion; and the third step of removing the organic solvent (S) from the initial aqueous dispersion to produce a dispersion in which microparticles of the self-water-dispersible thermoplastic resin (P) are dispersed into the aqueous medium.