Barrier film for packaging

Details Barrier film for packaging Barrier film for packaging

1993-05-14

1994-12-13

Nakarani, D. S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428216, 428337, 428448, 428451, 428516, 428520, 428522, B32B 2732

Patent

active

053728807

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.

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