Fire retardant foam

Details Fire retardant foam Fire retardant foam

1982-08-27

1984-12-04

Beck, Shrive P.

Coating processes

Solid particles or fibers applied

Interior or hollow article coating

427180, 427242, 427299, 4274344, 428921, 521906, B05D 312, B05D 500

Patent

active

044864680

ABSTRACT:
Fire retardant polyurethane foam materials and methods of producing the same are disclosed. Such foams are produced by encapsulating or depositing fire retardant materials within the cell structure of previously formed foam materials. In one embodiment, the foam is passed through a liquid medium containing fire retardant materials, with the foam being subjected to periodic compression during contact with the liquid medium. In an alternative embodiment, the foam is subjected to a dust or particulate atmosphere in which fire retardant material is the particulate material.

REFERENCES:
patent: 2200850 (1940-05-01), Miserentino
patent: 4073979 (1978-02-01), Pettingell
patent: 4223066 (1980-09-01), Boyle
patent: 4224374 (1980-09-01), Priest
patent: 4247971 (1981-02-01), Maruta et al.
patent: 4305976 (1981-12-01), Zubiate et al.
patent: 4342798 (1982-08-01), Illger et al.

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