Dr Peter Cox has been involved in the plastics industry for over 40 years with recognised experience in multilayered extrusion structures design and manufacture. He has carried out training for the properties of multilayer and laminated structures and how to manufacture them including extrusion by sheet, cast and blown film or tube and blow moulding and laminating. He has worked at academic polymer experimental facilities, and small and large businesses. He has been an expert witness in cases involving polymer processes and material properties.