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US 10,045,537 B2Granted
Ceramic glaze having antimicrobial property
AssigneeMicroban Products Company
InventorAlvin Lamar Campbell, Jr.
Life of this patent
Estimating the term…
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.
Claims15
A method for manufacturing a glazed ceramic substrate having an antimicrobial property, comprising:
- applying an antimicrobial ceramic glazing composition to a substrate, the glazing composition including an antimicrobial composition comprising:
- a first antimicrobial agent consisting of Ag2CO3;
- and
- a second antimicrobial agent that is one of Bi2O3, CuO, or ZnO;
- wherein the first antimicrobial agent is present in the glaze composition at a concentration of about 0.5 to about four percent, by weight of glaze composition;
- and
- wherein the second antimicrobial agent is present in the glaze composition at a concentration of from about one percent to about four percent, by weight of glaze composition;
- firing the glazing composition to transform the glazing composition into a fired glaze layer;
- wherein the fired glazed layer possesses an antimicrobial property.
6 more elements
A glazed ceramic substrate, comprising:
- ceramic substrate having a first substrate surface;
- and
- a fired ceramic glazing composition disposed on the first substrate surface;
- wherein the fired antimicrobial ceramic glazing composition is a post-fired state of an antimicrobial ceramic glazing composition including:
- a first antimicrobial agent comprised of Ag2CO3, and
- a second antimicrobial agent comprised of Bi2O3, CuO or ZnO;
- wherein the first antimicrobial agent has a concentration in the ceramic glaze composition of from about two percent to about four percent, by weight of glaze composition;
- and
- wherein the second antimicrobial agent has a concentration of from about two percent to about four percent, by weight of glaze composition.
6 more elements
A glazed ceramic substrate, comprising:
- ceramic substrate having a first substrate surface;
- and
- a fired ceramic glazing composition disposed on the first substrate surface;
- wherein the fired antimicrobial ceramic glazing composition is a post-fired state of an antimicrobial ceramic glazing composition including:
- a first antimicrobial agent comprised of Ag2CO3, and
- a second antimicrobial agent comprised of SnO2;
- wherein the first antimicrobial agent has a concentration in the ceramic glaze composition of from about two percent to about four percent, by weight of glaze composition;
- and
- wherein the second antimicrobial agent has a concentration of about two percent by weight of glaze composition.
6 more elements
Dependencies are inferred from the claim text.