Self-extinguishing blanket

Details Self-extinguishing blanket Self-extinguishing blanket

B - Operations, Transporting

32

B

B32B 3/24 (2006.01) A62C 3/08 (2006.01) B32B 3/26 (2006.01) B32B 17/10 (2006.01) B64C 1/38 (2006.01)

Patent

CA 2071628

2071628 9112131 PCTABS00006 A self-extinguishing blanket comprises an insulating layer of glass fiber strands (31) which include air spaces within the layer. Each surface of the layer has a plastic film which extends continuously along the surface for keeping moisture out of the layer. Each plastic film is attached to the associated surface of the insulation layer at selected areas (41) by a nonwoven fabric (37, 35). Each plastic film has a composition and embodies a stress condition which enables a portion of the plastic film, when subjected to a direct flame, or to the heat developed by an adjacent film, to soften, to pull apart, and to shrink and curl back, and to continue to curl back sufficiently far so as to prevent heating of that portion of the plastic film to ignition temperature.

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