| 摘要 |
<p>A process for producing by simultaneous lamination a polymer/metal/polymer laminate, which process comprises laminating to one of the major surfaces of a metal sheet a composite polyester film (A) comprising an inner layer (A1) of a substantially non-crystalline linear polyester having a softening point below 150 DEG C and a melting point above 150 DEG C but below 240 DEG C and an outer layer (A2) of a linear polyester having a melting point above 220 DEG C, and simultaneously laminating to the other major surface of the metal sheet a polyolefin-containing film (B) comprising a bonding resin which is an acid modified polyolefin-resin containing carboxyl or anhydride groups, the metal sheet having been heated to a temperature T1 sufficient to cause softening of the polymer films and intimate contact with the metal sheet, the temperature T1 being below the temperature at which the outer surface of the polyolefin-containing film is damaged during lamination, and re-heating the resultant laminate to a temperature T2 sufficient to cause each of the polymer films (A1) and (B) to interact with and become bound to the respective surface of the metal sheet. The laminates are useful for forming into containers or various components thereof.</p> |
