Fire-resistant intumescent laminates

Details Fire-resistant intumescent laminates Fire-resistant intumescent laminates

1973-07-18

1976-01-20

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156309, 428249, 428276, 428278, 428315, 428321, 428921, B32B 326

Patent

active

039340660

ABSTRACT:
A fire-retardant, intumescent laminate system suitable for application to combustible or heat-sensitive substrates comprises an intumescent layer which is a porous sheet material, e.g., paper or foams saturated with an intumescent composition and having a flexible protective layer adhered to the intumescent layer. The intumescent laminate system may include a vapor barrier layer, e.g., aluminum foil and/or a thermal barrier layer, e.g., glass wool or cardboard adjacent to the intumescent layer, and is particularly suitable as a protective, fireretardant overlay on thermally delicate substrates such as organic foams, e.g., polystyrene.

REFERENCES:
patent: 2813046 (1957-11-01), Lauring
patent: 2912392 (1959-11-01), Stilbert, Jr. et al.
patent: 3202567 (1965-08-01), Muri et al.
patent: 3320087 (1967-05-01), Erickson
patent: 3466222 (1969-09-01), Curtis
patent: 3672951 (1972-06-01), Moore et al.
patent: 3733289 (1973-05-01), Burns et al.

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