# US 2023/0265293 A1 · Continuous self-disinfecting and pathogen eradicating coating, article of manufacture with the coating and method of application > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0265293 A1 - Document ID: US20230265293A1 - Status: Published application - Kind: A1 - Application number: 18/090,693 - Filed: 2022-12-29 - Published: 2023-08-24 - Earliest claimed: 2022-02-24 - Assignees: Kismet Technologies Inc. - Applicants: Kismet Technologies LLC - Inventors: Christina H. Drake; Scott Hoos - Web page: https://patentgrep.com/patent/US20230265293A1 ## CPC - C09D 5/14: Paints containing biocides, e.g. fungicides, insecticides or pesticides (C09D5/16 takes precedence) - A01N 25/10: Macromolecular compounds - A01N 25/34: Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group - A01P 1/00: Disinfectants; Antimicrobial compounds or mixtures thereof - C09D 7/61: inorganic - C09D 7/62: modified by treatment with other compounds - C09D 7/67: {Particle size smaller than 100 nm} - C09D 7/68: {Particle size between 100-1000 nm} - B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites - C08K 9/02: Ingredients treated with inorganic substances - C08K 2003/2213: {of cerium} - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - 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 - A01P: BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract A long-lasting coating composition that comprises a metal-modified cerium oxide nanoparticles (mCNPs) ingredient selected from a group consisting of predominantly 3+ surface charge and predominantly 4+ surface charge. The m is an antimicrobial promoting metal. The coating composition includes a paint, where the mCNPs ingredient has a weight percent loading less than about 1 weight % in a mixture including the paint that is a durable adhesive coating once cured. The cured paint has a strong bond with the surface to which it is adhered. ## Claims ### Claim 1 A long-lasting and mechanically stable coating composition comprising: metal-modified cerium oxide nanoparticles (mCNPs) ingredient selected from a group consisting of predominantly 3+ surface charge and predominantly 4+ surface charge, where m is an antimicrobial promoting metal; and a paint where the mCNPs ingredient has a weight percent loading less than about 1 weight % in a mixture with the paint that is a durable adhesive coating once cured. ### Claim 2 (depends on 1) The coating composition according to claim 1, wherein the antimicrobial promoting metal is silver in an amount of 15% to 8% by weight. ### Claim 3 (depends on 1) The coating composition according to claim 1, wherein the antimicrobial promoting metal is selected from a group consisting of silver, gold, copper, platinum, nickel, zinc, iron, titanium, ruthenium and vanadium. ### Claim 4 (depends on 1) The coating composition according to claim 1, wherein the mCNPs ingredient has a predominantly 3+ surface charge with an average diameter of about 3 nanometers (nm) to 25 nm. ### Claim 5 (depends on 1) The coating composition according to claim 1, wherein the mCNPs ingredient has a predominantly 4+ surface charge with an average diameter of about 20 nanometers (nm) to 50 nm. ### Claim 6 (depends on 1) The coating composition according to claim 1, further comprising one of: a fluorescing additive, a near infrared (NIR) up-conversion salt and a visible up-conversion salt. ### Claim 7 (depends on 1) The coating composition according to claim 1, wherein the coating composition in a cured state eradicates bacteria biofilms at least by 99.9% or >99.999% and the paint comprises one of epoxy, polyurethane, a polyester and a urethane-based clearcoat. ### Claim 8 (depends on 1) The coating composition according to claim 1, further comprises: a nano composite photocatalytic containing solvents for rapid evaporation at room temperature. ### Claim 9 (depends on 1) The coating composition according to claim 1, further comprises: at least one of a pigment, pH buffer, polymethyl-co-poly butyl methacrylate, thermosetting polymers and epoxy resins. ### Claim 10 (depends on 1) An article of manufacture comprising: a surface; and a coating composition of claim 1, cured on the surface, the coating composition is self-disinfecting and pathogen eradicating. ### Claim 11 (depends on 10) The article of manufacture according to claim 10, wherein the antimicrobial promoting metal is silver in an amount of 15% to 8% by weight. ### Claim 12 (depends on 10) The article of manufacture according to claim 10, wherein the antimicrobial promoting metal is selected from a group consisting of silver, gold, copper, platinum, nickel, zinc, iron, titanium, ruthenium and vanadium. ### Claim 13 (depends on 10) The article of manufacture according to claim 10, wherein the mCNPs ingredient has a predominantly 3+ surface charge with an average diameter of about 3 nanometers (nm) to 25 nm. ### Claim 14 (depends on 10) The article of manufacture according to claim 10, wherein the mCNPs ingredient has a predominantly 4+ surface charge with an average diameter of about 20 nanometers (nm) to 50 nm. ### Claim 15 (depends on 10) The article of manufacture according to claim 10, wherein the coating composition further comprises one of: a fluorescing additive, a near infrared (NIR) up-conversion salt and a visible up-conversion salt. ### Claim 16 (depends on 10) The article of manufacture according to claim 10, wherein the coating composition in a cured state eradicates bacteria biofilms at least by 99.9% or >99.999% and the paint comprises one of epoxy, a polyester and a urethane-based clearcoat. ### Claim 17 (depends on 10) The article of manufacture according to claim 10, further comprises: a nano composite photocatalytic containing solvents for rapid evaporation at room temperature. ### Claim 18 (depends on 10) The article of manufacture according to claim 10, further comprises: at least one of a pH buffer, pigment, polymethyl-co-poly butyl methacrylate, thermosetting polymers and epoxy resins. ### Claim 19 (depends on 1) A method of disinfecting a surface comprising: coating the surface with a coating composition of claim 1; and curing the coating composition to form a self-disinfecting coating on the surface which eradicates bacteria biofilms at least by 99.9% or >99.999%. ### Claim 20 (depends on 19) The method according to claim 19, wherein the curing of the coating composition includes curing the coating composition with a UV light. ### Claim 21 (depends on 19) The method according to claim 19, wherein the curing of the coating composition includes curing the coating composition. ### Claim 22 (depends on 19) The method according to claim 19, wherein the coating composition further comprises one of: a fluorescing additive, a near infrared (NIR) up-conversion salt and a visible up-conversion salt. ### Claim 23 (depends on 19) The method according to claim 19, wherein the antimicrobial promoting metal is silver in an amount of 15% to 8% by weight. ### Claim 24 (depends on 19) The method according to claim 19, wherein the antimicrobial promoting metal is selected from a group consisting of silver, gold, copper, platinum, nickel, zinc, iron, titanium, ruthenium and vanadium and the paint comprises one of epoxy, polyurethane, a polyester and a urethane-based clearcoat. ### Claim 25 (depends on 19) The method according to claim 19, wherein the coating composition further comprises: a nano composite photocatalytic containing solvents for rapid evaporation at room temperature. ### Claim 26 (depends on 19) The method according to claim 19, wherein the coating composition further comprises: at least one of a pH buffer, pigment, polymethyl-co-poly butyl methacrylate, thermosetting polymers and epoxy resins.