Multi-layer films with syndiotactic barrier layer containing a wax

摘要

An oriented multi-layer film comprises: (a) at least one layer comprising an olefin polymer, for example, isotactic polypropylene; and (b) a barrier layer adjacent the at least one layer of (a), comprising a syndiotactic polypropylene which preferably possesses an isotacticity of less than 25%, more preferably less than 15%, in particular less than 6%, and moisture and oxygen permeability reducing amounts of wax.