Coextruded multilayer film with propylene-based polymer and ethylene-based polymer

摘要

The present disclosure provides a coextruded multilayer films. In one embodiment, the coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 30 nm to 1000 nni and layer A includes a propylene-based polymer having a crystallization temperature (T_pc). Layer B includes an ethylene-based polymer having a crystallization temperature (T_Ec), wherein T_pcT_Ec. Layer A has an effective moisture permeability less than 0.40 g-mil/100 in²/day.