. . "As alternatives to polyurethane, examples of the constituent material of the adhesive layer 8 include thermoplastic resins such as polyethylene, chlorinated polyethylene, copolymers of ethylene and vinyl acetate, copolymers of ethylene and ethyl acrylate, polypropylene, AS resin, ABS resin, methyl methacrylate resin, vinyl chloride resin, copolymers of vinyl chloride and vinyl acetate, copolymers" . .