| 摘要 |
<p>Porous beads which are substantially spherical ones made of an aromatic polyether ketone resin and have an average particle diameter of 50 to 5,000 νm and a porosity of 40 to 99%. The process is characterized by comprising: mixing an aromatic polyether ketone resin with a solvent for the resin with heating to obtain a resin solution; dispersing the resin solution into a liquid dispersion medium which is a nonsolvent for the resin and is immiscible with the solvent to obtain a dispersion in which the resin solution is present as dispersed droplets; cooling the dispersion while maintaining the dispersed state of the resin solution to thereby solidify the resin contained in the resin solution; and separating the solidified resin from the mixture of the solvent and the dispersion medium to obtain substantially spherical porous beads made of the aromatic polyether ketone resin.</p> |
