High barrier, coextruded compositions useful in the manufacture

Details High barrier, coextruded compositions useful in the manufacture High barrier, coextruded compositions useful in the manufacture

1993-09-07

2000-03-14

Russel, Jeffrey E.

Stock material or miscellaneous articles

Composite

Of polyester

428 366, 428 367, 428483, 264241, 26433121, B29D 900, B32B 2708, B32B 2736, C08J 500

Patent

active

060370637

ABSTRACT:
The present invention relates generally to multi-layer film compositions which can be thermoformed and heat set into clear, transparent articles, having excellent barrier properties. The compositions comprise at least one barrier layer and at least one polyester layer, whereby the polyester layer will quickly crystallize and heat set into an optically clear layer material.

REFERENCES:
patent: 3960807 (1976-06-01), McTaggart
patent: 4365036 (1982-12-01), Lee
patent: 4380621 (1983-04-01), Nield et al.
patent: 4448913 (1984-05-01), Coleman et al.
patent: 4463121 (1984-07-01), Gartland et al.
patent: 4705844 (1987-11-01), Espenschied et al.
patent: 4801640 (1989-01-01), Dallmann et al.
patent: 4929482 (1990-05-01), Moritani et al.
patent: 5102943 (1992-04-01), Logullo

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