Multiwall container

Details Multiwall container Multiwall container

1982-09-10

1984-06-19

Dixson, Jr., William T.

Special receptacle or package

With specified material for container or content

For container lining, coating, or impregnate

62372, 206525, 220461, 220464, B65D 8124

Patent

active

044549458

ABSTRACT:
Disclosed are unpressurized multiwall containers of liquid having outer and inner walls of unfoamed plastic material. The plastic container has at least two unfoamed plastic walls, each of which is separated from the next wall by a layer containing a gas or vapor wherein the gas or vapor contains less than ten volume percent oxygen gas and is not reactive with oxygen under packaging conditions. The layer or layers containing the gas can be entirely gaseous or be a foamed or cellular plastic containing, for instance, as little as thirty volume percent gas. The containers have a special utility where it is desired to minimize the permeation of oxygen from the ambient air into the inside of the container. In a particularly important embodiment of the disclosure, the outer plastic layer is supported by a paperboard or wooden container, and the inner plastic container is within the paperboard or wooden container.

REFERENCES:
patent: 1963743 (1934-06-01), Hoodless
patent: 3236206 (1966-02-01), Willinger
patent: 3370773 (1968-02-01), Mayo
patent: 4172152 (1979-10-01), Carlisle

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