Method of producing composite materials, stratiform composites, and containers made therefrom

摘要

A composite stratiform material (1) having at least three interfused layers and comprising: (I) a carried layer (10) formed of a mixture containing polypropylene and a particulate organic filler; (II) a first outer layer (12) interfused with said carrier layer at a first interface (11) and consisting essentially of a mixture containing polypropylene and an inorganic filler; and (III) a second outer layer (14) interfused with said carrier layer at a second interface (13) located opposite said first interface (11) and consisting essentially of a mixture containing polypropylene and an inorganic filler.