Ceramic glaze having antimicrobial property

Patent metadata

Field	Value
Publication number	US-2018317494-A1
Application number	US-201816033655-A
Country	US
Kind code	A1
Filing date	Jul 12, 2018
Priority date	Feb 20, 2007
Publication date	Nov 8, 2018
Grant date	—

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.

First claim

What is claimed is:

1 . A method for manufacturing an antimicrobial ceramic glazing composition, comprising:
adding, to the ceramic glaze base, a synergistic antimicrobial composition that is one of: 2% Ag 2 CO 3 +2% Bi 2 O 3 , 2% Ag 2 CO 3 +2% CuO, 2% Ag 2 CO 3 +2% SnO 2 , 2% Ag 2 CO 3 +2% ZnO, 2% Ag 2 CO 3 +4% ZnO, 2% Bi 2 O 3 +2% CuO, 2% Bi 2 O 3 +4% CuO, 2% CuO+4% Ag 2 CO 3 , 2% CuO+4% SnO 2 , 2% CuO+2% TiO 2 , 2% CuO+4% TiO 2 2% CuO+4% ZnO, 2% SnO 2 +4% Ag 2 CO 3 , 2% SnO 2 +4% CuO, 2% TiO 2 +4% Ag 2 CO 3 , 2% TiO 2 +4% CuO, 2% ZnO+4% Ag 2 CO 3 , or 2% ZnO+4% CuO; milling the ceramic glaze base and added antimicrobial composition; rehydrating the milled ceramic glaze base; and optionally, remixing the rehydrated glaze base.

Assignees

• Microban Products

Inventors

• Campbell Jr Alvin Lamar

Classifications

• A61K33/30

  Zinc; Compounds thereof · CPC title

• C03C2204/02

  Antibacterial glass, glaze or enamel · CPC title

• C04B33/34

  combined with glazing · CPC title

• C03C8/14

  Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions · CPC title

• C04B41/5022

  with vitreous materials (composition of vitreous glazes and enamels C03C; ceramic pigments C09C1/0009) · CPC title