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US 10,863,745 B2Granted
Ceramic glaze having antimicrobial property
AssigneeMicroban Products Company
InventorAlvin Lamar Campbell, Jr.
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Abstract
An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
Claims2
A method for manufacturing an antimicrobial ceramic glazing composition, comprising:
- adding, to the ceramic glaze base, an antimicrobial composition that is:
- a first antimicrobial metal compound consisting of Bi2O3, and
- a second antimicrobial metal compound consisting of ZnO,
- a third antimicrobial metal compound consisting of Ag2CO3,
- wherein the first antimicrobial metal compound is present in the glaze composition at a concentration of about one percent to about four percent, by weight of glaze composition;
- and
- wherein the second antimicrobial metal compound is present in the glaze composition at a concentration of from about one percent to about four percent, by weight of glaze composition;
- wherein the third antimicrobial metal compound is present in the glaze composition at a concentration of from about 0.5 percent to about four percent, by weight of glaze composition;
- milling the ceramic glaze base and added antimicrobial composition;
- hydrating the milled ceramic glaze base;
- and
- optionally, remixing the hydrated glaze base.
9 more elements
Dependencies are inferred from the claim text.