Gas impermeable, high clarity and anti piercing multilayered film

摘要

Multilayer film (I) contg. layer(s) (A) of polyamide and layer(s) (B) of ethylene-vinyl alcohol (EVOH) copolymer has two layers (C) and (D) on its sealing side, consisting of propylene copolymers (II) contg. up to 15 mole % other alpha-olefins with not more than 12 C atoms, with a difference of more than 1 mole % in the alpha-olefin content of layers (C) and (D).