| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide recyclable expandable styrene-based resin particles which can readily and economically be recycled to an expanded styrene-based resin molded product and expandable particles of the expandable styrene-based resin particles by simple steps and provide the resin molded product by using the resin particles. SOLUTION: The recyclable expandable styrene-based resin particles are obtained by dissolving the expanded styrene-based resin molded product and/or expandable particles of the expandable styrene-based resin into styrene monomer to afford a styrene monomer solution, dispersing the styrene monomer solution into an aqueous medium, carrying out suspension polymerization of the styrene monomer and impregnating a foaming agent into the resultant polymer particles. As a result, steps are simplified and the recyclable expandable styrene-based resin particles can be recycled to resin particles which are not inferior to the expandable styrene-based resin particles obtained from styrene monomer alone also in quality by dissolving foam to be recycled in the styrene monomer without passing the foam to be recycled through a step for heating and melting the foam to afford the styrene monomer solution.</p> |
