Barrier film having high colorless transparency and method

Details Barrier film having high colorless transparency and method Barrier film having high colorless transparency and method

2005-07-05

2005-07-05

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C206S484000, C428S035900, C428S336000, C428S701000

Reexamination Certificate

active

06913808

ABSTRACT:
Barrier film with a high colorless transparency comprising a flexible plastic substrate. A barrier layer is formed on the surface and has a thickness ranging from approximately 50 to less than 200 Angstroms and is formed of a material selected from the group of aluminum oxide, tin oxide and yttrium oxide. An additional barrier layer formed of silicon dioxide may also be formed on the barrier layer.

REFERENCES:
patent: 3442686 (1969-05-01), Jones
patent: 4702963 (1987-10-01), Phillips et al.
patent: 4741957 (1988-05-01), Park
patent: 2210826 (1989-06-01), None

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