Air-cushion foil for use as an envelope insert or bubble wrap consists of biodegradable polymer

摘要

Air cushion foil made from at least one biodegradable polymer in the form of thermoformed nap film between two smooth outer films An Independent claim is also included for a process for the production of this foil in which a thermoformed nap film is combined with at least one smooth outer film by calendering without an adhesive.