# US 12,179,232 B2 · System and method for impregnating a porous surface with antibacterial and antiviral compounds > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,179,232 B2 - Document ID: US12179232B2 - Status: Granted - Kind: B2 - Application number: 17/243,524 - Filed: 2021-04-28 - Published: 2021-12-30 - Granted: 2024-12-31 - Earliest claimed: 2020-04-29 - Assignees: Unique Equipment Solutions LLC - Applicants: Unique Equipment Solutions LLC - Inventors: Oleksandr Yuriiovych Mykytiuk - Web page: https://patentgrep.com/patent/US12179232B2 ## CPC - A01P 1/00: Disinfectants; Antimicrobial compounds or mixtures thereof - B05D 5/00: Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures - A01N 59/16: Heavy metals; Compounds thereof - A01N 59/20: Copper - B05D 1/02: performed by spraying - B05D 1/18: performed by dipping - A01P: BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS ## Abstract This invention provides a system and method for impregnating surfaces, which are typically porous and/or textile-based, with antiviral/antibacterial compounds in a manner that is robust, effective and straightforward. Such techniques can be employed during manufacture of the underlying item (e.g. PPE) and/or in the field. In an illustrative embodiment, a system and method for providing antiviral and antibacterial properties to a porous surface is provided. It includes a suspension consisting of a water-based solvent and an active ingredient consisting of at least one of a nanoparticulate metal and a chelated metal. The suspension is applied using an application process that immerses or sprays the suspension relative to the surface. Illustratively, the metal is at least one of silver, copper and titanium. Alternatively, or additionally, the metal can a chelated copper. The suspension can also include a salt component, such as sodium chloride. Additionally, the suspension can include a water repellant. ## Claims ### Claim 1 A system for providing antiviral and antibacterial properties of 60 days or more to a porous surface comprising: a suspension that employs an active antiviral/antibacterial agent, the suspension consisting of; copper in a concentration of 0.005% to 0.2% (w/w) comprising at least one of: chelated copper doped by one or more of silver, sodium, titanium, or zinc; or nanoparticles of copper defined by a highly developed surface and surrounded by molecules of water that are chemically bonded with the nanoparticles that vary in size from 30-90 nanometers; sodium chloride in a concentration of 5-10 grams per gallon; water in a concentration of 40% to 90% (w/w); and acid in a concentration that causes suspension pH to be in a range of pH 3.5-2.5; a first combined suspension comprising the suspension, silver in a concentration of 0.005% to 0.2% (w/w), a first combination of titanium, sodium, and iodine, the first combination in total concentration of 0.0001% (w/w), and alcohol in a concentration of 10% to 60% (w/w); a second combined suspension comprising the suspension, silver in a concentration of 0.005% to 0.2% (w/w), a second combination of titanium, sodium, and iodine, the second combination in total concentration of 0.0001% (w/w), and a silicon-based compound with strong wetting and binding properties in a concentration of 5% to 10%; a first application system by which the first combined suspension is applied to a hydrophilic application item via immersion; and a second application system by which the second combined suspension is sprayed-on relative to a hydrophobic surface of a hydrophobic application item. ### Claim 2 (depends on 1) The system as set forth in claim 1 further comprising a cold plasma generator through which the suspension is passed. ### Claim 3 (depends on 1) The system as set forth in claim 1 further including a diluted suspension comprising the first combined suspension at a concentration of 60%-90% and a water-repellent active ingredient of 10%-40%. ### Claim 4 (depends on 1) The system as set forth in claim 1 further including a diluted suspension comprising the second combined suspension at a concentration of 60%-90% and a water-repellent active ingredient of 10%-40%. ### Claim 5 A system for providing antiviral and antibacterial properties of 60 days or more to a porous surface comprising: a suspension consisting of; copper in a concentration of 0.005% to 0.2% (w/w) comprising at least one of: chelated copper doped by silver, sodium, titanium, or zinc; or nanoparticles of copper that define a highly developed surface and surrounded by molecules of water that are chemically bonded with the nanoparticles that vary in size from 30-90 nanometers; silver in a concentration of 0.005% to 0.2% (w/w); a first combination of titanium, sodium, and iodine, the first combination in total concentration of 0.0001% (w/w); sodium chloride in a concentration of 5-10 grams per gallon; water in a concentration of 40% to 90% (w/w); and acid in a concentration that causes suspension pH to be in a range of pH 3.5-2.5; and a suspension applicator comprising one of an immersion vessel or a sprayer. ### Claim 6 (depends on 5) The system as set forth in claim 5 further comprising a first combined suspension consisting of the suspension and alcohol in a concentration of 10% to 60% (w/w). ### Claim 7 (depends on 6) The system as set forth in claim 6 wherein the suspension applicator comprises an immersion vessel by which the first combined suspension is applied to an application item. ### Claim 8 (depends on 5) The system as set forth in claim 5 further comprising a second combined suspension consisting of the suspension and a silicon-based compound with strong wetting and binding properties in a concentration of 5% to 10%. ### Claim 9 (depends on 8) The system as set forth in claim 8 wherein the suspension applicator comprises a sprayer by which the second combined suspension is applied to an application item. ### Claim 10 A system for providing antiviral and antibacterial properties of 60 days or more to a porous surface comprising: a suspension consisting of; copper in a concentration of 0.005% to 0.2% (w/w) comprising at least one of: chelated copper doped by silver, sodium, titanium, or zinc; or nanoparticles of copper that define a highly developed surface and surrounded by molecules of water that are chemically bonded with the nanoparticles that vary in size from 30-90 nanometers; silver in a concentration of 0.005% to 0.2% (w/w); a first combination of titanium, sodium, and iodine, the first combination in total concentration of 0.0001% (w/w); sodium chloride in a concentration of 5-10 grams per gallon; water in a concentration of 40% to 90% (w/w); acid in a concentration that causes suspension pH to be in a range of pH 3.5-2.5; and a target application component selected from a list of application components consisting of: a hydrophilic-based target application component of alcohol in a concentration of 10% to 60% (w/w); or a hydrophobic-based target application component of a silicon-based compound with strong wetting and binding properties in a concentration of 5% to 10%; and a suspension applicator comprising one of an immersion vessel or a sprayer. ### Claim 11 (depends on 10) The system of claim 10, wherein the target application component is hydrophilic-based and the suspension applicator is an immersion vessel. ### Claim 12 (depends on 10) The system of claim 10, wherein the target application component is hydrophobic-based and the suspension applicator is a sprayer.