| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for producing reclaimed foaming polystyrene-based resin particles by which the particles can be formed into a spherical shape even when resin particles having a low MFR value are used, to provide the reclaimed foaming polystyrene-based resin particles produced thereby, and to provide a molded article of the reclaimed foaming polystyrene-based resin obtained by using the particles. <P>SOLUTION: The method for producing the reclaimed foaming polystyrene-based resin particles includes suspending reclaimed polystyrene-based resin particles obtained by heating and melting a used polystyrene-based resin and pulverizing the resultant resin in an aqueous medium, impregnating the reclaimed polystyrene-based resin particles with a polymerization initiator and a styrene-based monomer, polymerizing the impregnated product, and impregnating the resultant particles with a foaming agent, wherein the reclaimed polystyrene-based resin particles are obtained by mixing an organic peroxide with the used polystyrene-based resin so as to be contained therein. The amount of the organic peroxide to be mixed is preferably 0.01-3 pts.wt. based on the 100 pts.wt. used polystyrene-based resin, and the ignition point is preferably≥300°C. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
