WATER DISPERSION OF AROMATIC POLYSULFONE RESIN PARTICLES

摘要

The present invention provides a dispersion in which aromatic polysulfone resin particles are dispersed in water. The aromatic polysulfone resin particles comprises a aromatic polysulfone resin having oxygen-containing groups selected from among hydroxyl groups and oxyanion groups in an amount of 1.6 or more groups relative to 100 repeating units forming the aromatic polysulfone resin; and have the volume average particle diameter of 50 μm or less. The dispersion is less likely to cause settlement of the aromatic polysulfone particles and is suited for use as an aqueous coating material.