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US 12,433,356 B2Granted
Antipathogenic fibrous material
AssigneeSINTX Technologies, Inc.
InventorsBryan J. McEntire, Ryan M. Bock, Bhajanjit Singh Bal
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Abstract
Described herein is an antiviral face mask and methods of use thereof to inactivate a virus in contact with the face mask. The face mask may include a fibrous material with silicon nitride powder impregnated therein and a layer surrounding the fibrous material. In some embodiments, silicon nitride is present in the fibrous material at a concentration of about 30 wt. % to about 50 wt. %.
Claims7
A fibrous material comprising:
- a fibrous material comprising silicon nitride powder embedded in at least a portion of a surface of the fibrous material, wherein the silicon nitride is present at a concentration of about 30 wt. % to about 50 wt. %;
- wherein the fibrous material comprises spunbond nonwoven fabric;
- wherein the silicon nitride powder has an average particle size of 0.6 μm to 5 μm;
- and
- wherein the silicon nitride inactivates a pathogen in contact with the surface of the fibrous material.
2 more elements
A fibrous material comprising:
- a fibrous material comprising silicon nitride powder impregnated in the fibrous material, wherein the silicon nitride is present at a concentration of about 1 wt. % to about 30 wt. % %;
- wherein the fibrous material comprises spunbond nonwoven fabric;
- wherein the silicon nitride powder has an average particle size of 0.6 μm to 5 μm, and
- wherein the silicon nitride inactivates a pathogen in contact with the fibrous material.
1 more element
Dependencies are inferred from the claim text.