Low noise flexible barrier films

摘要

Various barrier films are described that include barrier layers that contain ethylene vinyl alcohol copolymers and elastomers. Polyolefin elastomers can be used such as ethylene octene copolymers. The barrier films can also include secondary barrier layers that contain one or more norbornene copolymers.

主权项

1. A multilayer barrier assembly, the assembly comprising:
a primary barrier layer consisting of: ethylene vinyl alcohol (EVOH) and ethylene octene copolymer in a weight ratio of from about 99:1 to about 3:1, respectively; and at least one secondary barrier layer including a first secondary barrier layer and a second secondary barrier layer, each including at least one norbornene copolymer, disposed along the primary barrier layer; wherein the first secondary barrier layer and the second secondary barrier layer are disposed such that the primary barrier layer is positioned between the first and the second secondary barrier layers; and wherein the first and the second secondary barrier layers are disposed immediately adjacent to the primary barrier layer.