Heat-sealable sheet and container

Details Heat-sealable sheet and container Heat-sealable sheet and container

1981-07-02

1983-01-25

Van Balen, William J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428346, 428349, 428483, 428515, 428516, 428520, B65D 8500, B32B 102, B32B 104, B32B 2708

Patent

active

043703690

ABSTRACT:
A multilayered thermoplastic sheet, suitable for forming into a heat-sealable container, comprising a structural layer for providing bulk and rigidity, a sticky heat-sealing layer on top of the structural layer for bonding the structural layer to a lid, and a nonsticky cover layer on top of the heat-sealing layer and made of material that permits contact and bonding of the heat-sealing layer to the lid when the heat-sealing temperature and pressure are applied.

REFERENCES:
patent: 3865302 (1975-02-01), Kane
patent: 3925591 (1975-12-01), Breitenfellner et al.
patent: 4037008 (1977-07-01), Tugwell
patent: 4123576 (1978-10-01), Kobayashi et al.
patent: 4188443 (1980-02-01), Mueller et al.
patent: 4194039 (1980-03-01), Mueller
patent: 4206844 (1980-06-01), Thukamoto et al.
patent: 4252846 (1981-02-01), Romesberg et al.
patent: 4274900 (1981-06-01), Mueller et al.

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