Fire-retardant product and method of making

Details Fire-retardant product and method of making Fire-retardant product and method of making

1979-05-07

1981-03-03

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

5459, 5481, 428310, 428314, 428315, 428921, B32B 520, B32B 704

Patent

active

042541778

ABSTRACT:
Articles having increased fire-retardant properties are obtained by surrounding a foraminous core having the desired product properties with an adherent protective layer of a hydrophilic polyurethane foam having large amounts of fire-retardant fillers. The core can be made of rigid, semi-rigid or flexible foams. Preferable cores include conventional bedding and cushioning materials. The protective layer can be sprayed or poured as a coating or molded on to the core.

REFERENCES:
patent: 3051601 (1962-08-01), Schick
patent: 3861993 (1975-01-01), Guthrie
patent: 3897372 (1975-07-01), Kehr et al.
patent: 3951718 (1976-04-01), Gonzalez
patent: 4066578 (1978-01-01), Murch et al.
patent: 4092752 (1978-06-01), Dougan
patent: 4105594 (1978-08-01), Dieterich et al.
patent: 4110508 (1978-08-01), Isgur et al.
patent: 4116735 (1978-09-01), Plasse
patent: 4137200 (1979-01-01), Wood et al.
patent: 4181770 (1980-01-01), Schumacher et al.

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