| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a foamed laminated sheet having strong adhesive strength between layers and showing beautiful appearance. SOLUTION: The foamed laminated sheet 4 comprises a first thermoplastic resin layer 1 having an olefin-based resin non-foamed layer, a second thermoplastic resin layer 3 having a propylene-based resin foamed layer, and a third thermoplastic resin layer 9 having a gas barrier resin layer between the first and second layers wherein the first thermoplastic resin layer 1 and the third thermoplastic resin layer 9 are bonded to each other via the first adhesive layer 8, and the second thermoplastic resin layer 3 and the third thermoplastic resin layer 9 are bonded to each other via the second adhesive layer 10. The manufacturing method of the foamed laminated sheet 4 includes an extruding process of laminating the first adhesive layer 8, the third thermoplastic resin layer 9 and the second adhesive layer 10 in this order to form a molten laminated film 2 in which both the adhesive resins are melted, and a laminating process of laminating the thermoplastic resin film 1 having the olefin-based resin non-foamed layer, the molten laminated film 2 and the thermoplastic resin sheet 3 having the propylene-based resin foamed layer in this order. COPYRIGHT: (C)2005,JPO&NCIPI |
