Article comprising polyurethane and polypropylene, useful e.g. as sealed coverings and housings, free of chemical adhesive, bonded by plasma treatment of the polypropylene surface

摘要

Article (A), free of any chemical adhesion mediator, comprises adherently bonded thermoplastic polyurethane (PU) and polypropylene (PP). An independent claim is included for preparation of (A) by plasma treatment of the surface of a PP article then contacting this surface with PU.