Polymeric structure having improved barrier properties and metho

Details Polymeric structure having improved barrier properties and metho Polymeric structure having improved barrier properties and metho

1983-10-03

1988-09-13

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of polyamide

428516, 428518, 428523, 528499, B32B 2708

Patent

active

047709448

ABSTRACT:
A polymeric structure having an oxygen barrier layer (e.g., ethylene-vinyl alcohol copolymer) is heated in the presence of moisture to improve its resistance to oxygen and moisture penetration. A drying agent is incorporated in the multi-layer structure to control the rate of water penetration to, and the amount of water in, the barrier layer.

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patent: 4363840 (1982-12-01), Roullet et al.
patent: 4407873 (1983-10-01), Christensen et al.
patent: 4407897 (1983-10-01), Farrell et al.
patent: 4425410 (1984-01-01), Farrell et al.
patent: 4451512 (1984-05-01), Yazaki et al.
patent: 4464443 (1984-08-01), Farrell et al.

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