Breathable chembio protection fabric with carbon nanotube physical pathogen barrier
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United States of America Patent
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Mar 24, 2015
Grant Date -
May 26, 2011
app pub date -
Jan 7, 2011
filing date -
Nov 20, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fabric for use in chemical and biological (CB) protective garments includes at least one felt layer having from 25% to 100% carbon nanotube (CNT) fibers as a breathable physical barrier against toxic chemical droplets and/or pathogens. The felt layers are cleaned and consolidated into a mechanically competent sheet which can form adhesive seams having lapshear greater than the sheet itself. An additional supporting layer can be included. The supporting layer can be a wicking layer which is permeable with a chlorinated or otherwise chemically active solution to establish a reactive chemical barrier, the solution being dispensed on demand from a portable container. Embodiments include a second layer of CNT or of another backing fabric, sandwiching the wicking layer therebetween. Impermeable fluoropolymer seams can divide the fabric into a plurality of CNT/wicking cells. A layer of activated charcoal and/or halamine-forming hydantoin can be included for persistent reactive chemical protection.
First Claim
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International Classification(s)
- G21F:PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, C....
- B82Y:SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; ....
- A62D:CHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES ....
- A62B:DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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