Patent 7741236 was granted and assigned to Reckitt Benckiser PLC on June, 2010 by the United States Patent and Trademark Office.
A zinc and bismuth containing, water-soluble glass composition comprising from 10 to 75 mole % P2O5, 5-50 mole % alkali metal oxide, up to 40 mole % ZnO and up to 40 mole % Bi2O3.