Packaging material having good moisture barrier

Details Packaging material having good moisture barrier Packaging material having good moisture barrier

1997-10-22

1999-08-10

Dawson, Robert

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

428 366, 428340, 4285375, 428507, 428511, B27N 502

Patent

active

059356642

ABSTRACT:
Packaging material prepared from a paper or paperboard substrate which includes a layer of moisture barrier material is made resistant to loss of its moisture barrier characteristics when the packaging material is scored and bent during any converting operation by the addition of a layer of flexible primer material located between the paper or paperboard substrate and the moisture barrier layer.

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patent: 3231411 (1966-01-01), Tyler et al.
patent: 3476587 (1969-11-01), Demol et al.
patent: 3579371 (1971-05-01), Dooley et al.
patent: 3707393 (1972-12-01), McDonald
patent: 4300969 (1981-11-01), Frydendal
patent: 4795665 (1989-01-01), Lancaster et al.
patent: 4895747 (1990-01-01), Birkholz et al.
patent: 5286538 (1994-02-01), Pearlstein et al.
patent: 5418008 (1995-05-01), Calvert
patent: 5496601 (1996-03-01), Schurb
"High Barrier Polymers", by A. L. Blackwell, Tappi Notes of the 1986 Tappi Coextrusion Seminar pp. 13-18.

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