Fiberboard carton product

Details Fiberboard carton product Fiberboard carton product

1975-07-25

1976-05-18

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

229 31, 428220, 428511, 428513, 428514, B32B 2710, B32B 2900

Patent

active

039580563

ABSTRACT:
A moisture vapor impermeable sheet for the fabrication of hygroscopic particulate material container cartons having small cross-machine direction curl propensity, said sheet being projecting lamination of a thin film of thermoplastic polymer material between opposite laminae of high and low density cellulosic fiber sheets, the low density sheet being permeated with water subsequent to lamination and reeled in a straight line cross-direction configuration for at least 20 minutes.

REFERENCES:
patent: 3194469 (1965-07-01), Rumberger
patent: 3194474 (1965-07-01), Rumberger
patent: 3194872 (1965-07-01), Garner
patent: 3263891 (1966-08-01), Brugh, Jr.
patent: 3466852 (1969-09-01), Stoner
patent: 3600262 (1971-08-01), Frank
patent: 3713881 (1973-01-01), Akiyama et al.
patent: 3717534 (1973-02-01), Duling et al.

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