Smoke containment curtain

Details Smoke containment curtain Smoke containment curtain

1995-06-21

1997-03-04

Bell, James J.

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Two or more non-extruded coatings or impregnations

428920, 428921, 442102, 442136, 442180, B32B 700

Patent

active

056077580

ABSTRACT:
Smoke containment curtains formed of flexible, smoke impermeable fabric formed of a fiberglass fabric substrate coated with a smoke impervious composition on at least one side. The coating includes a halide-free fire retardant incorporated into a halide-free acrylic or silicone resin. The resulting fabric has an LC.sub.50 of greater than 50 grams.

REFERENCES:
patent: 4526830 (1985-07-01), Ferzinger et al.
patent: 4677016 (1987-06-01), Ferzinger et al.
patent: 4695507 (1987-09-01), Schwartz
patent: 4778544 (1988-10-01), Jones et al.
patent: 5240058 (1993-08-01), Ward
Smoke and Fire Prevention Systems; article entitled Fabric Curtain Boards & Smoke Containment Systems, undated-- admitted prior art.

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