Multilayer multifunctional packaging elements

Details Multilayer multifunctional packaging elements Multilayer multifunctional packaging elements

1994-08-17

1996-06-18

Sluby, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428335, 428516, 428520, 426129, B29D 2200, B32B 2708

Patent

active

055275702

ABSTRACT:
Multilayer and multifunctional packaging elements having a high-absorption activity toward aqueous liquid substances as well as barrier properties toward gases such as oxygen and carbon dioxide are prepared by thermoforming.
The packaging elements includes an inner porous layer, an intermediate absorbing layer and an outer sheet having high barrier properties toward gases. The intermediate layer may contain anti-bacterial agents.

REFERENCES:
patent: 4939030 (1990-07-01), Tsuji
patent: 4943459 (1990-07-01), Nedzu
patent: 5143763 (1992-09-01), Yamada
AB (WPAT) 92-201124/95, Halstrick et al, German 4039354.

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