| 摘要 |
PROBLEM TO BE SOLVED: To provide a polystyrene-based resin multilayered foam having no fear of generating surface seizing at the time of thermoforming. SOLUTION: A polystyrene-based resin multilayered foam is a sheet- or plate-shaped one wherein a plurality of polystyrene-based resin foam layers are laminated and at least one surface layer of the multilayered foam is constituted of a layer comprising the polystyrene-based resin foam with a volatile low mol.wt. component content of 2,000 ppm or less. |
