| 摘要 |
PROBLEM TO BE SOLVED: To provide a new plate-like polystyrene-based resin laminated foam which suppresses occurrence of burrs in cutting work, is excellent in product workability, sufficiently exhibits various functions such as an antistatic ability similarly to a conventional plate-like polystyrene-based resin laminated foam, and also has excellent surface smoothness, bending strength, and the like.SOLUTION: A plate-like polystyrene-based resin laminated foam 1 has a foam core layer 2 formed by bonding polystyrene-based resin foams 2' and 2" by thermal fusion; and functional foam layers 3 and 3' which are laminated on both surfaces of the foam core layer 2 by co-extrusion. A total apparent density is 30-300 kg/m, a total thickness is 2-30 mm, and a total basis weight is 150-2500 g/m. The functional foam layers 3 and 3' contain a polystyrene-based resin and a functional additive. A basis weight per one surface of the functional foam layers 3 and 3' is 3-50 g/m, and foam film thicknesses 3a and 3a' of the outermost surface portion of the functional foam layers 3 and 3' are 1 μm or more and less than 10 μm.SELECTED DRAWING: Figure 1 |
