Low Noise Flexible Barrier Films
AssigneeAvery Dennison Corporation
InventorsHoang T. PHAM, Thomas LANEY, Farid F. GHIAM, Kevin O. HENDERSON
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Abstract
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.
Claims74
A barrier layer comprising:
- a blend including ethylene vinyl alcohol copolymer (EVOH) and at least one elastomer in a weight ratio of from about 99:1 to about 3:1, respectively;
- from about 0% to about 20% of a tie agent.
A multilayer barrier assembly, the assembly comprising:
- a primary barrier layer including ethylene vinyl alcohol (EVOH) and at least one elastomer in a weight ratio of from about 99:1 to about 3:1, respectively, and from about 0% to about 20% of a tie agent;
- and
- at least one secondary barrier layer disposed along the primary barrier layer, the secondary barrier layer including at least one norbornene copolymer.
An article comprising a film interconnected to define a cavity, the film having at least one layer comprising:
- ethylene vinyl alcohol copolymer (EVOH) and at least one elastomer in a weight ratio of from about 99:1 to about 3:1, respectively.
An article comprising a multilayer film interconnected to define a cavity, the multilayer film comprising:
- a primary barrier layer including ethylene vinyl alcohol (EVOH) and at least one elastomer in a weight ratio of from about 99:1 to about 3:1, respectively;
- and
- at least one secondary barrier layer disposed along the primary barrier layer, the secondary barrier layer including at least one norbornene copolymer.
Dependencies are inferred from the claim text.