Oxygen barrier oriented shrink film

Details Oxygen barrier oriented shrink film Oxygen barrier oriented shrink film

1986-03-21

1988-07-05

Herbert, Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428 35, 428349, 4284761, 4284769, 428516, 428518, B32B 2708

Patent

active

047554193

ABSTRACT:
A coextruded multiple layer oriented film comprises a core layer of ethylene vinyl alcohol copolymer, and two intermediate layers each comprising a polyamide. Two outer layers comprising polymeric materials or blends of polymeric materials such as (a) linear low and linear medium density polyethylene, and EVA, and (b) blends of polypropylene and ethylene propylene copolymer are adhered to the intermediate polyamide layers by means of modified polymeric adhesive materials. A multilayer film with a combination of oxygen barrier properties, toughness, shrinkability, and good optical properties is obtained.

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