Containers from laminates having a foamed polymer layer

Details Containers from laminates having a foamed polymer layer Containers from laminates having a foamed polymer layer

2005-06-28

2005-06-28

Nolan, Sandra M. (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S349000, C428S480000, C428S483000

Reexamination Certificate

active

06911241

ABSTRACT:
A container constructed from a laminate structure that includes a layer of foamed polymer. The layer of foamed polymer replaces the paperboard layer of known laminate structures. A preferred embodiment of the laminate structure is comprised of a layer of foamed polymer, a first layer of low density polyethylene, a second layer of low density polyethylene, a layer of aluminum foil, a tie layer, and a third layer of low density polyethylene. The container has a non-polar homogeneous heat seal that may be created by conventional equipment at a temperature ranging from about 250 degrees Fahrenheit to about 500 degrees Fahrenheit.

REFERENCES:
patent: 4578297 (1986-03-01), Duncan
patent: 4832775 (1989-05-01), Park et al.
patent: 5744181 (1998-04-01), Sorway et al.
patent: 6365249 (2002-04-01), Al Ghatta et al.
patent: 02252527 (1990-10-01), None
patent: WO 97/002139 (1997-01-01), None

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