| abstract |
Disclosed are biaxially oriented film or sheet articles comprising:n (a) a base or inner layer of a film or sheet of a crystalline homopolymer of a Cāāāā alpha-olefin monomer or of a certain propylene copolymers; and (b) at least one surface layer of a broad molecular weight distribution propylene polymer material, optionally containing a propylene homopolymer having an isotactic index greater than 80, or certain propylene copolymers. |