Thermoformable film, process for the production thereof, and the use thereof

摘要

The present invention relates to a thermoformable film in the form of a composite film which contains an upper film containing certain amounts by weight of a) at least one crosslinked PP-EPDM and b) an uncrosslinked propylene block copolymer or heterophase propylene block polymer, where from 15 to 1% by weight of b) has been replaced by the same amounts by weight of a polymer and/or ionomer c) containing reactive groups. The invention furthermore relates to the process for the production of the composite film and to the use of the film. The lower film or films contain(s) certain amounts by weight of d) at least one partially crosslinked EPDM, e) a propylene homopolymer, copolymer or graft polymer, f) at least one polymer and/or ionomer containing reactive groups, and g) at least one polymeric crosslinking agent containing reactive groups.