Barrier materials useful for packaging

Details Barrier materials useful for packaging Barrier materials useful for packaging

1990-04-20

1992-02-04

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

427 51, 428 359, 428 366, 428446, 428448, 4284744, 428480, B32B 904, B65D 2534, B05D 300

Patent

active

050859048

ABSTRACT:
Multilayer structures suitable for food packaging is provided, wherein barrier layers of SiO and SiO.sub.2 are successively vacuum deposited on a resin substrate such as PET film. This combination of silicon oxide layers provides economical, color-free, microwaveable packaging. Barrier properties of the packaging after retorting can be improved by incorporation of a dopant of metallic material in the SiO.sub.2 layer.

REFERENCES:
patent: 3442686 (1969-05-01), Jones
patent: 4528234 (1985-07-01), Kaiho et al.
patent: 4552791 (1985-11-01), Hahn
patent: 4702963 (1987-10-01), Phillips et al.
"Glassy Barriers from Electron Beam Web Coaters", D. Chahroudi, paper made available 4/89.

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