Barrier film for packaging

Details Barrier film for packaging Barrier film for packaging

1994-07-22

1996-10-15

Nakarani, D. S.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156196, 493 84, 493 89, 493110, 493210, B31B 160

Patent

active

055650481

ABSTRACT:
The present invention relates to the composition, preparation, and use of multi-layer composite films comprising a core layer of low gas permeable material, two intermediate layers sandwiching the core layer, and two outer layers sandwiching the two intermediate layers. The core layer provides the excellent oxygen barrier property, whereas the intermediate and outer layers protect the core layer so the oxygen permeability of the resulting multi-layer composite film becomes independent on relative humidity.

REFERENCES:
patent: 4658434 (1987-04-01), Murray

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