Patent ID: 9181012
Filing Date: 2015-11-10
Classification: B32B,B65D,Y10T

Abstract:
1. Multilayer film made of recyclable thermoplastic material comprising at least three layers, wherein at least one layer (A) of said three layers consists essentially of unoriented amorphous PET and is combined with at least a barrier layer (B) comprising unoriented amorphous PET, a salt of a transition metal and an oxidizable polyester-ether, wherein: i) said unoriented amorphous PET layer (A) forms each of the external layers of said three-layers film and a central layer is formed by said barrier layer (B) (structure A/B/A); or ii) said unoriented amorphous PET layer (A) forms the central layer of said three-layers film and each of said external layers is formed by said barrier layer B (structure B/A/B); the weight ratio between said central layer and the sum of said external layers being >1, said multilayer film comprising at least 95% by wt. of unoriented amorphous PET and having a permeability to oxygen (Oxygen Transmission Rate “OTR”) of less than 10 cc/m