FIRE-RATED MULTILAYER FABRIC WITH INTUMESCENT LAYER
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United States of America Patent
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Issued Date -
Apr 21, 2011
app pub date -
Oct 19, 2010
filing date -
Oct 19, 2009
priority date (Note) -
Abandoned
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Abstract
The subject invention comprises a flexible multilayer fire-rated material that has at least one layer of an intumescent material. Because it is flexible, the fire-rated material is usable in situations where it is desirable for the fire-rated material to be rolled up or folded into a non-flat storage application. This allows the subject fire-rated material to be used in fire-rated and smoke-resistant barriers that are recessed in walls or ceilings until use. One end use embodiment includes without limitation, recessed or rolled up fabrics used in elevator lobby ceilings to seal off elevators or their lobbies from smoke or fire.
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