BIAXIALLY ORIENTED POLYPROPYLENE FILM WITH IMPROVED MOISTURE BARRIER

摘要

Embodiments herein relate to a biaxially oriented film comprising a core layer (B) comprising a blend of a high density polyethylene and a crystalline polypropylene, wherein the biaxially oriented film has a lower moisture vapor transmission rate than that of a biaxially oriented polypropylene (BOPP) film have a same structure and composition as that the biaxially oriented film except the BOPP film has the core layer (B) containing 100 wt % of the crystalline polypropylene.