Envelopes – wrappers – and paperboard boxes – Paperboard box – Releasable or frangible bond between box parts provides...
Patent
1996-12-09
2000-02-15
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Releasable or frangible bond between box parts provides...
229 31, 229137, B65D 542
Patent
active
060242809
ABSTRACT:
A gable-top vessel made from sheet material having a heat-sealable surface is disclosed. The closure has at least one abhesive layer disposed between and joining the inner surfaces of the first and second outer rib panels to define a pair of joined panels. In one embodiment, the abhesive is applied at least adjacent to the top edges of the outer rib panels which are joined. The abhesive layer can be a copolymer of ethylene and acrylic acid or vinyl alcohol. The abhesive layer substantially hermetically seals the joined panels together whicle reducing the force required to part the joined panels, compared to the force which would be required to part the joined panels if the same panels were heat-sealed directly together in the same sealing regions without the abhesive. A method of assembling a filled and sealed gable-top container is also disclosed. Before or after the sheet material is cut or creased, at least one abhesive layer as described above is applied to at least one of the surfaces which are joined to seal the closure. The blank is then folded, filled and heat sealed to form a closed, essentially hermetically sealed, unitary top rib.
REFERENCES:
patent: Re26305 (1967-11-01), Huang et al.
patent: 2575544 (1951-11-01), Zinn, Jr.
patent: 3116002 (1963-12-01), Crawford et al.
patent: 3675015 (1972-07-01), Geib
patent: 4321404 (1982-03-01), Williams et al.
patent: 4744467 (1988-05-01), Jonsson et al.
patent: 4775096 (1988-10-01), Andersson et al.
patent: 4801078 (1989-01-01), Carlsson
patent: 4903891 (1990-02-01), Gordon
patent: 4978726 (1990-12-01), Dohler et al.
Catania Michael A.
Elkins Gary E.
Tetra Laval Holdings & Finance, S A
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