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US 9,446,981 B2Granted
Ceramic glaze having antimicrobial property
AssigneeMicroban Products Company
InventorAlvin Lamar Campbell, Jr.
Life of this patent
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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.
Claims3
An antimicrobial ceramic glazing composition, comprising:
- a ceramic glaze base adapted to be fired at a firing temperature of from at least about 1062° C;
- and
- an antimicrobial composition including:
- a first antimicrobial metal compound consisting of Bi2O3;
- a second antimicrobial metal compound consisting of ZnO;
- and
- a third antimicrobial metal compound consisting of Ag2CO3;
- wherein the first antimicrobial metal compound, the second antimicrobial metal compound and the third antimicrobial metal compound each have a concentration in the ceramic glaze composition of about two percent;
- and
- wherein the glazing composition is adapted to possess an antimicrobial property after a conventional firing process at the firing temperature.
7 more elements
An antimicrobial ceramic glazing composition, comprising:
- a ceramic glaze base;
- and
- an antimicrobial composition including:
- a first antimicrobial agent consisting of Bi2O3;
- a second antimicrobial agent consisting of ZnO;
- and
- a third antimicrobial agent consisting of Ag2CO3;
- wherein the first antimicrobial metal compound, the second antimicrobial metal compound and the third antimicrobial metal compound each have a concentration in the ceramic glaze composition of about two percent.
5 more elements
A glazed ceramic substrate having an antimicrobial property comprising:
- a ceramic substrate having a first substrate surface;
- and
- a fired antimicrobial composition disposed on the first substrate surface;
- wherein the fired antimicrobial composition is a post-fired state of a ceramic glazing composition including:
- a first antimicrobial metal compound consisting of Bi2O3,
- a second antimicrobial metal compound consisting of ZnO, and
- a third antimicrobial metal compound consisting of Ag2CO3,
- wherein the first antimicrobial metal compound, the second antimicrobial metal compound and the third antimicrobial metal compound each have a concentration in the ceramic glaze composition of about two percent.
5 more elements
Dependencies are inferred from the claim text.