Packaging laminate with gas and aroma barrier properties

Details Packaging laminate with gas and aroma barrier properties Packaging laminate with gas and aroma barrier properties

1994-06-03

1996-04-16

Sluby, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428216, 428451, 428461, 428480, 428498, 428702, B32G 108, B65D 6540

Patent

active

055080758

ABSTRACT:
A layered material such as a packaging laminate for a packaging container possessing superior oxygen gas and aroma barrier properties. The packaging laminate comprises a first laminate unit and a second laminate unit which are bonded together by the intermediary of an interjacent layer of an adhesive. The first laminate unit has a rigid, but foldable core layer and outer, surrounding layers of thermoplastic, and the second laminate unit has a flexible substrate or carrier layer of thermoplastic which, on its surface, carries a layer acting as an oxygen gas and aroma barrier and consisting of a silicon oxide deposited by chemical plasma deposition and having the general chemical formula SiO.sub.x, in which x may vary within the range of between 1.5 and 2.2. A flexible laminate having a SiO.sub.x barrier layer is also disclosed.

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patent: 5224441 (1993-07-01), Felts et al.
patent: 5340621 (1994-08-01), Matsumoto et al.

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