Adhesive film comprises hot-melt adhesive anchored to a polymer layer via a thermoplastic adhesive layer or co- or terpolymer layer without corona discharge treatment

摘要

Non-corona-treated film comprises a top layer (3) of extrudable polymer, a middle layer (1) of extrudable thermoplastic adhesive or co- or terpolymer with a thickness of 1-20 mum, and a layer (2) of crosslinkable hot-melt adhesive (1-60 g/m2) applied by transfer at room temperature or by coating in molten form. An Independent claim is also included for a film as above where the top layer is a metal foil or nonwoven or textile fabric instead of adhesive.