The at least one intermediate layer may also contain polymers such as ethylene, propylene, and other 1-atkylene based homopolymers and copolymers, including functional monomers such as acrylic and methacrylic acid and fully or partially neutralized ionomer resins and their blends, methyl acrylate, methyl methacrylate homopolymers and copolymers, imidized, amino group containing polymers, polycarbo