Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1994-08-01
1995-05-09
Foelak, Morton
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283144, 4283197, 4283227, 521 53, 521 92, 521 97, 521123, 521130, 521155, 521918, B32B 326
Patent
active
054138485
ABSTRACT:
Low thermal conductivity insulation for refrigerators and the like is produced by blowing a resinous foam in an inert (e.g., nitrogen) atmosphere with a mixture of carbon dioxide and a low thermal conductivity inert gas such as krypton or xenon. The foam is then sealed in a gas-impervious enclosure and carbon dioxide is removed therefrom, typically by inclusion in said enclosure of a solid material reacted therewith such as an alkaline reagent. The final partial pressure of the low thermal conductivity gas in the enclosure is in the range of about 20-200 torr, and the total pressure is up to 110% of said partial pressure.
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patent: 5286429 (1994-02-01), Blythe et al.
patent: 5302624 (1994-04-01), Reedy et al.
Jaster Heinz
Ward, III William J.
Foelak Morton
General Electric Company
Pittman William H.
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