Metal sheeting/polyurethane adhesive layer/polypropylene copolymer plastic film composite process for its production and its use for the production ofpackaging containers

摘要

: Metal sheeting/polyurethane adhesive layer/ polypropylene copolymer plastic film composite, process for its production, and its use for the production of packaging containers. The present invention relates to metal sheeting/polyurethane adhesive layer/polypropylene copolymer plastic film composites in which the adhesive layer is obtained from a solvent-containing two-component polyurethane adhesive. The polypropylene copolymer plastic film essentially or fully comprises random polypropylene copolymer obtainable by random copolymerization of from 1 to 8% by weight of ethylene and/or further .alpha.-monoolefins, with the exception of propylene, and from 99 to 92% by weight of propylene, based on the total weight of the monomer composition, the polypropylene copolymer having a molecular weight distribution Mw:Mn in the range from 2 to 8 and a melt flow index MFI 230.degree.C/2.16 kg in the range from 5 to 10 g/10 min.