Heat insulating body

Details Heat insulating body Heat insulating body

1985-12-23

1987-05-26

Van Balen, William J.

Stock material or miscellaneous articles

Sheet including cover or casing

Filled with gas other than air; or under vacuum

156 79, 428 71, 428 76, 4283175, 4283184, B32B 100, B32B 300

Patent

active

046685553

ABSTRACT:
A heat insulating body comprising a rigid polyurethane foam of open cell structure, and a vessel formed of metal-plastics laminate film enveloping said rigid polyurethane foam, the whole system being evacuated to reduce the internal pressure and then hermetically sealed; and an adiabatic box comprising said heat insulating body, an inner box and an outer box, said heat insulating body being disposed between said inner box and said outer box and the whole system being subjected to integral foaming with rigid polyurethane foam.

REFERENCES:
patent: 4451587 (1984-05-01), Keshi et al.

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