Patent ID: 8080490

Claim:
Antimicrobial acting phosphate glass or glass ceramic in the form of a water-soluble powder, comprising the following composition in percent by weight on an oxide basis P 2 O 5 >66-80 percent by weight SO 3 0-16.8 percent by weight B 2 O 3 0-1 percent by weight Al 2 O 3 >6.2-10 percent by weight SiO 2 0-10 percent by weight Na 2 O >11.0-20 percent by weight Li 2 O 0 percent by weight K 2 O 0 percent by weight CaO 0-16.8 percent by weight MgO 0-15 percent by weight SrO 0-15 percent by weight BaO 0-15 percent by weight ZnO >0-16.8 percent by weight Ag 2 O 0-5 percent by weight CuO 0-10 percent by weight GeO 2 0-10 percent by weight TeO2 0-15 percent by weight Cr 2 O 3 0-10 percent by weight I 0-10 percent by weight F 0-3 percent by weight.