| 20100071415 | METHOD FOR PRODUCING ANTIMICROBIAL OR ANTIBACTERIAL GLASSES OR GLASS CERAMICS - A method of producing antimicrobial or antibacterial glass particles, wherein known starting materials are fused, broken or powdered, fed to an extruder, fused therein with addition of defined dose of foaming agents, the foaming agents being introduced into the molten glass by the building pressure, the molten glass being then foamed to give a closed-pore foam on a subsequent pressure reduction to increase surface area and the foam subsequently subjected to a comminution process. The glass particles generated in the comminution process become antimicrobial or antibacterial during an ion exchange or the antimicrobial or antibacterial properties thereof are increased as a result of the ion exchange. | 03-25-2010 |
