Oxygen barrier oriented shrink film

Details Oxygen barrier oriented shrink film Oxygen barrier oriented shrink film

B - Operations, Transporting

29

C

18/783

B29C 47/06 (2006.01) B29C 55/12 (2006.01) B32B 27/08 (2006.01)

Patent

CA 1289324

ABSTRACT OF THE DISCLOSURE 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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