| 摘要 |
A multilayer sheet material (10) is constituted by: - one or more aluminum layers (11, 11'), each having thickness equal or less than 10 μm, - one or more layers (12) of thermoplastic polymeric material having flexural stiffness included in the range of 294-1373 MPa, each having thickness equal or less than 5 μm. The aluminum layers (11, 11') and layers (12) of thermoplastic polymeric material are coupled alternately one to another and the multilayer sheet material (10) is embossed (13). |
