US 12,179,232 B2Granted

System and method for impregnating a porous surface with antibacterial and antiviral compounds

AssigneeUnique Equipment Solutions LLC

InventorOleksandr Yuriiovych Mykytiuk

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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.

Claims12

Dependent claims

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.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/243,524Filed 28 Apr 2021 · us provisional application
Priority: 29 Apr 2020
Published: US 2021/0402433 A130 Dec 2021
Granted: 31 Dec 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A01P 1/00
Disinfectants
B05D 5/00
Processes for applying liquids or other fluent materials to surfaces to obtain
A01N 59/16
Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds: heavy metals; Compounds thereof
A01N 59/20
Heavy metals; Compounds thereof: copper

Family

Application63/017,124Us provisional application · filed 29 Apr 2020
US 2021/0402433 A1Pre-grant publication · published 30 Dec 2021
US 12,179,232 B2This patent

From the US filing history. Foreign family members aren’t listed.

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