| 摘要 |
<p>PURPOSE: To produce fine polymer particles stably without adversely affecting the environment by dissolving a solid polymer material in a supercritical phase using specific substances and allowing the resultant soln. to rapidly expand. CONSTITUTION: A solid polymer material. pref. a synthetic resin or a coating powder, is dissolved in a supercritical phase using carbon dioxide and at least one polar org. solvent selected from among methanol, ethanol, propanol, and acetone and the resultant soln. is allowed to rapidly expand. The solid polymer material pref. comprises at least one material selected from among an acrylic resin, a polyester resin, an epoxy resin, an acrylic clear coating powder, an acrylic enamel coating powder, and a polyester enamel coating powder.</p> |
