| 摘要 |
<p>PURPOSE:To regenerate globular foamable styrene-based resin particles from foamed styrene-based resin moldings. CONSTITUTION:The method for producing globular regenerated foamable styrene-based resin particles is characterized by dispersing styrene-based resin particles obtained by thermally melting a shrunk material of foamed styrene- based resin moldings without drawing into an aqueous medium containing an organic dispersing agent and impregnating a readily volatile hydrocarbon into the resultant dispersion at a temperature of >=100 deg.C and <=140 deg.C. Thereby, pearl-like foamable styrene-based resin particles excellent in foaming properties can be produced utilizing the foamed styrene-based resin moldings.</p> |
