IHAKURISEINENCHAKUZAITSUKIHORISUCHIRENKEIHATSUHOTAIOYOBISEKISOTAI

摘要

PURPOSE:To provide a polystyrene foam and a laminated body thereof which are easily recovered for reuse and can make a contribution to energy conservation and prevention of environmental pollution. CONSTITUTION:A polystyrene foam 1 is obtained which is provided with pressure-sensitive adhesive surfaces 2 formed by applying to the surface of the polystyrene foam 1 a coat of the foaming particles of an easily separable weak pressure-sensitive adhesive agent 3 smaller than an average size of the foaming particle at the spaces larger than the maximum diameter of the foaming particle. A laminated body of the polystyrene foams is formed by building up two or more such polystyrene foams 1 in layers in an easily separable manner with their pressure-sensitive adhesive surfaces and non-pressure- sensitive adhesive surfaces joined together.