Insulating wall for refrigerator devices

Details Insulating wall for refrigerator devices Insulating wall for refrigerator devices

1990-08-23

1991-04-23

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

220444, 220467, 312214, 4283193, 4283197, F25D 2308, B32B 520, B32B 704

Patent

active

050099523

ABSTRACT:
An insulating wall for refrigerator devices, wherein a polyurethane is foamed between an exterior metal sheet and a deep-drawn plastics material plate selected from a member of the group of polystyrole or acrylonitrile-butadiene-styrene, wherein the cell-gas of the polyurethane foam is carbon dioxide and wherein the plastics material plate comprises in its interior a blocking layer of 0.03-0.6 mm thickness formed of a copolymer of polyethylene and vinyl alcohol where the molar percent of polyethylene in the copolymer is in the range of 32-44.

REFERENCES:
patent: 4196950 (1980-04-01), Churchill et al.
patent: 4707401 (1987-11-01), Benford

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