a laminate structure for both packaging and non - packaging applications , including a five layer coextrusion composite containing an evoh / polyolefin composite barrier layer coated or applied to a paper or paperboard substrate . the laminated structure may contain a layer of linear low density polyethylene or other layers , as needed for the application . the evoh / polyolefin blend layer is preferably a blend of an ethylene vinyl alcohol copolymer having 44 % ethylene moiety and a low density polyethylene polymer . the blend barrier , which is part of a five layer coextrusion composite layer provides improved oxygen and moisture barrier characteristics to a package , prepared from such a laminated structure , as well as improved rigidity and heat resistance , thereby providing longer shelf life and excellent flavor retention to the stored contents as well as improved dimensional stability to the cartons , package or containers , at a reduced cost .