Paperboard packaging containing a PVOH barrier

Details Paperboard packaging containing a PVOH barrier Paperboard packaging containing a PVOH barrier

1993-12-01

1996-04-09

Thibodeau, Paul J.

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

428 367, 428511, 428512, 428513, 428516, B32B 2308, B32B 2708, B32B 2710

Patent

active

055060110

ABSTRACT:
Paperboard packaging for non-refrigerated liquid products and for dry products contains a buried polyvinyl alcohol copolymer (PVOH) barrier layer which has a low oxygen permeability particularly at low relative humidity, and outer heat-sealable surfaces which provide good resistance to moisture penetration and a means for fabricating the packaging.

REFERENCES:
patent: 4239826 (1980-12-01), Knott et al.
patent: 4254169 (1981-03-01), Schroeder
patent: 4407897 (1983-10-01), Farrell et al.
patent: 4425410 (1984-01-01), Farrell et al.
patent: 4464443 (1984-08-01), Farrell et al.
patent: 4701360 (1987-10-01), Gibbons et al.
patent: 4888222 (1989-12-01), Gibbons et al.
patent: 5059459 (1991-10-01), Huffman
patent: 5116649 (1992-05-01), Massouda
patent: 5213858 (1993-05-01), Tanner et al.
patent: 5225256 (1993-07-01), Marano et al.
patent: 5330845 (1994-07-01), Andersson et al.
"High Barrier Polymers", by A. L. Blackwell, 1986, Coextrusion Seminar, Marriott Hilton Head, Hilton Head, SC, published by TAPPI Press, pp. 13-20.

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