Thermal insulating panel for use in an insulative container and

Details Thermal insulating panel for use in an insulative container and Thermal insulating panel for use in an insulative container and

1975-04-25

1976-11-23

Dier, Philip

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428357, 427183, 427304, 220 9C, 215 13R, B32B 106, B32B 516, C23D 300, A47J 4100

Patent

active

039938115

ABSTRACT:
A panel having a double wall construction of a structural plastic material is provided with improved thermal insulative properties by (1) metallizing at least one surface of each wall of the panel with metal such as silver to provide a light reflective surface and to produce a partial barrier to atmospheric gases, (2) coating the metallized surface with a barrier plastic such as vinylidene chloride polymer, (3) evacuating the space enclosed by the walls of the panel, and (4) adding to the evacuated space a gas-absorbing material.

REFERENCES:
patent: 1071817 (1913-09-01), Stanley
patent: 1338782 (1920-05-01), Lindahl
patent: 1694967 (1928-12-01), Coolidge
patent: 2643021 (1953-06-01), Freedman

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