Refrigerator construction

Details Refrigerator construction Refrigerator construction

F - Mech Eng,Light,Heat,Weapons

25

D

154/90.2, 312/82

F25D 23/08 (2006.01) B32B 3/12 (2006.01)

Patent

CA 1054503

APPLICATION FOR LETTERS PATENT FOR REFRIGERATOR CONSTRUCTION ABSTRACT OF THE DISCLOSURE Disclosed herein is a composite structure for use in thermal in- sulation panels, especially those panels used in refrigeration cabinets. The composite structure comprises a layer of a gas filled cellular insulation material combined with a layer of impact resistant thermoplastic sheet mater- ial, wherein a rubber modified high nitrile polymer containing at least 55% by weight of nitrile monomer units (calculated as acrylonitrile) is inter- posed between the gas filled cellular material and the thermoplastic sheet. The high nitrile polymer layer presents an effective barrier to the gas in the cellular material and provides improved impact strength in the composite while retaining good rigidity of the composite structure.

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