Antiviral articles

Patent metadata

Field	Value
Publication number	US-11618810-B2
Application number	US-202117192533-A
Country	US
Kind code	B2
Filing date	Mar 4, 2021
Priority date	Mar 4, 2020
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

Provided is a textile made of filament yarn comprising a polymer composition that is durable and reusable having permanent or near-permanent antiviral properties and that includes a polymer, a metal ion, preferably a zinc and/or copper ion, and an optional phosphorus compound, wherein fibers and/or fabric formed from the polymer composition demonstrate antiviral properties and wherein the polymer is hygroscopic. The present disclosure also describes methods of forming the polymer compositions and methods of preparing fibers from the polymer composition.

First claim

We claim:

1. An antiviral article comprising:
a textile having a basis weight of greater than or equal to 15 gsm, the textile comprising filament yarn comprising:
one or more hygroscopic polymers each having an average fiber diameter from 1 to 20 microns;
one or more metal ions incorporated within the one or more hygroscopic polymers for deactivating viruses exposed to the article, wherein the concentration of the one or more metal ions is greater than or equal to 200 wppm; and
a phosphorus compound and wherein the phosphorus compound comprises benzene phosphinic acid, phosphorous acid, or manganese hypophosphite, or combinations thereof, wherein the metal ion is a zinc ion and wherein the molar ratio of the phosphorus to the zinc ranges from 0.01:1 to 3:1.

2. The article of claim 1 , wherein the one or more hygroscopic polymers comprise a polyamide, polyurethane, polycarbonate, polyesters, polyacrylates, or acrylonitrile butadiene styrene.

3. The article of claim 2 , wherein the polyamide is the reaction product of at least one C 4 to C 16 aliphatic dicarboxylic acid, cyclo dicarboxylic acid, or aromatic dicarboxylic acid and at least one alkylene diamine having from 2 to 16 carbon atoms or an aromatic diamine.

4. The article of claim 1 , wherein the one or more hygroscopic polymers absorbs more than 0.3% of moisture based on the weight of the one or more hygroscopic polymers.

5. The article of claim 1 , wherein the fabric as a basis weight from 15 to 320 gsm.

6. The article of claim 1 , wherein the one or more hygroscopic polymers each have an average fiber diameter from 10 to 20 microns.

7. The article of claim 1 , wherein the concentration of the one or more metal ions is from 200 wppm to 1,000 wppm.

8. The article of claim 1 , wherein the article exhibits at least a 1-log reduction of human coronavirus after a period of 60 minutes according to ISO 18184:2019.

9. The article of claim 1 , wherein the article exhibits at least a 1-log reduction of H1N1 after a period of 60 minutes according to ISO 18184:2019.

10. The article of claim 1 , wherein the article exhibits at least a 1-log reduction of Sars-CoV-2 virus after a period of 60 minutes according to ISO 18184:2019.

11. The article of claim 1 , further comprising one or more metal compounds, and the one or more metal compounds comprise oxides, carbonates, stearates, pyrithiones, or adipates.

12. The article of claim 11 , wherein the concentration of the one or more metal ions exceeds the concentration of one or more metal compounds.

13. The article of claim 1 , wherein the article is reusable.

14. The article of claim 1 , wherein the article has a metal ion retention rate of greater than or equal to 65%.

15. The article of claim 1 , wherein the article comprises a mask, wipe, gown, towel, protective clothing, or protective net.

16. The article of claim 1 , wherein the virus is an adenovirus, a herpesvirus, a poxvirus, a rhinovirus, a coxsackievirus, an enterovirus, a morbillivirus, a coronavirus, an influenza A virus, an avian influenza virus, a swine-origin influenza virus, or an equine influence virus.

Assignees

• Ascend Performance Mat Operations Llc

Inventors

• Gopal Vikram
• Yung Wai-Shing
• Ortega Albert

Classifications

• D10B2401/13

  anti-allergenic or anti-bacterial · CPC title

• A01N59/20

  Copper · CPC title

• D01F6/60 Primary

  from polyamides (from polyamino acids or polypeptides D01F6/68) · CPC title

• D02G3/449

  Yarns or threads with antibacterial properties (filaments containing agents inhibiting growth of microorganisms D01F1/103) · CPC title

• A41D13/1192

  with antimicrobial agent · CPC title