Gas barrier packaging material

Details Gas barrier packaging material Gas barrier packaging material

1975-07-21

1978-08-08

Ives, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

206527, 428910, 428474, 428500, 428518, 428516, 428520, 426127, B32B 302

Patent

active

041058186

ABSTRACT:
Multiple ply packaging materials formed of certain polymer films, each having a gas permeability of 10 or less cc per 100 square inches per mil thickness over a 24 hour period at one atmosphere pressure, and 73.degree. F. and 50% R.H., such as polyvinylidene chloride, exhibit unexpectedly high gas barrier properties in comparison with a single film of the same equivalent thickness.

REFERENCES:
patent: 3274004 (1966-09-01), Curler et al.
patent: 3429717 (1969-02-01), Cook
patent: 3455302 (1969-07-01), Liloia et al.
patent: 3579416 (1971-05-01), Schrenk

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