Ceramic glaze having antimicrobial property

Patent metadata

Field	Value
Publication number	US-10856550-B2
Application number	US-201816033655-A
Country	US
Kind code	B2
Filing date	Jul 12, 2018
Priority date	Feb 20, 2007
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

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; hydrating the milled ceramic glaze base; and
optionally, remixing the hydrated glaze base.

Assignees

• Microban Products

Inventors

• Campbell Jr Alvin Lamar

Classifications

• A61K33/245

  Bismuth; Compounds thereof · CPC title

• C04B33/34

  combined with glazing · CPC title

• A61K33/30

  Zinc; Compounds thereof · CPC title

• C04B41/5049

  Zinc or bismuth oxides · CPC title

• C04B41/86

  Glazes; Cold glazes · CPC title