	US 12,376,593 B2
	Method of treating a glazed ceramic article
Nathan Lee Fields, Concord, NC (US)
Assigned to Microban Products Company, Huntersville, NC (US)
Filed by Microban Products Company, Huntersville, NC (US)
Filed on Nov. 3, 2023, as Appl. No. 18/386,758.
Application 18/386,758 is a continuation of application No. 15/338,790, filed on Oct. 31, 2016, granted, now 11,844,351.
Prior Publication US 2024/0057607 A1, Feb. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 59/16 (2006.01); A01N 25/08 (2006.01); C03C 8/04 (2006.01); C03C 8/18 (2006.01)

CPC A01N 59/16 (2013.01) [A01N 25/08 (2013.01); C03C 8/04 (2013.01); C03C 8/18 (2013.01); C03C 2204/02 (2013.01)]

10 Claims

1. A glazed ceramic article having antimicrobial properties made by the process comprising:

(a) applying an antimicrobial composition on top of an outermost surface of a glazed ceramic article, wherein the antimicrobial composition comprises an antimicrobial additive, wherein the antimicrobial additive is a combination of 30 to 69 weight % ZnO, 30 to 69 weight % Bi₂O₃, and 1 to 10 weight % frit containing Ag, and

(b) firing the glazed ceramic article having the antimicrobial composition applied thereon thereby form the glazed ceramic article having antimicrobial properties, wherein the application level of the antimicrobial additive on the glazed ceramic article is in a range of 0.5 g/m²to 5.0 g/m².