Oxygen impermeable leak free container

Stock material or miscellaneous articles – Hollow or container type article – Paper containing

Patent

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Details

428 367, 428349, 428461, 4284758, 428483, 428513, 428514, 428516, 428520, B65D 556, B32B 2710

Patent

active

049817396

ABSTRACT:
The present invention relates to an improved container for food and non-food products. The container utilizes a novel paperboard barrier laminate structure which maintains an isolated gas environment in the container. The laminate makes use of high strength, heat-resistant and caulking polymer layers which prevent pinholes, cuts, or cracking of the barrier layers during blank conversion, package formation, and package distribution. In addition, the novel polymer resin layers act to caulk the seams and channels present in the carton providing a sealed leak free container.

REFERENCES:
patent: 3972467 (1976-08-01), Whillock et al.
patent: 4513036 (1985-04-01), Thompson et al.
patent: 4590126 (1986-04-01), Andersson
patent: 4698246 (1987-10-01), Gibbons et al.
patent: 4701360 (1987-10-01), Gibbons et al.
patent: 4777088 (1988-10-01), Thompson et al.
patent: 4789575 (1988-12-01), Gibbons et al.

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