CO-EXTRUDED THERMOPLASTIC LAMINATE

摘要

A thermoplastic multi-layer composite structure (20) is disclosed and consists in a first embodiment of a co-extruded acrylic polypropylene outer skin (22) and high melt strength polypropylene substrate (26) which is attached to a first surface of a polypropylene foam core (30). The foam core can either be constructed from an expanded polypropylene or an extruded polypropylene. Where an expanded polypropylene foam core is provided, the foam core is attached to the outer and inner skin through the use of a polypropylene adhesive (28 and 34).