ANTIMICROBIAL, WATER-INSOLUBLE SILICATE GLASS POWDER AND MIXTURE OF GLASS POWDERS

摘要

The invention relates to an antimicrobial, water-insolvent silicate glass powder in which the initial glass contains 30-70 percent by weight of SiO2, 0-1 percent by weight of Na2O, 0-1 percent by weight of K2O, 5-40 percent by weight of MgO, 0-40 percent by weight of CaO, 0-40 percent by weight of SrO, 0-40 percent by weight of BaO, 0-25 percent by weight of Al2O3, 0-20 percent by weight of P2O5, 0-20 percent by weight of B2O3. The sum of the alkali oxide contents is less than 1.5 percent by weight of the overall composition of the initial glass. The initial glass also contains ions or atoms of elements Ag, Zn Cu, Ce, Te, or I representing a total fraction of < 2.5 percent by weight as a biocidal component.