Fire-retardant low temperature insulating building panel

Details Fire-retardant low temperature insulating building panel Fire-retardant low temperature insulating building panel

1975-02-07

1977-04-05

Perham, Alfred C.

Static structures (e.g., buildings)

Irreversibly reactive component

295271, 52303, 264 465, 264 467, 428 70, 428 71, 428921, E04C 226, E04B 194

Patent

active

040153860

ABSTRACT:
A fire-resistant door or other building panel for cold storage compartments includes a sheet-metal casing containing a core of plastic foam insulation with a layer of a hydrous sodium silicate composition between the plastic foam core and the walls of the casing. In case of fire or high temperature conditions near the panel the silicate composition expands, forming a thick, cellular heat barrier that shields the foam plastic and affords fire protection equivalent to that of an approved fire door.

REFERENCES:
patent: 2787345 (1957-04-01), Soubier et al.
patent: 3334464 (1967-08-01), Charles
patent: 3462339 (1969-08-01), Poms
patent: 3566564 (1971-03-01), Gaeth et al.

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