Patent ID: 6514893
Filing Date: 2003-02-04
Classification: A61K,C03C

Abstract:
A lithium disilicate glass comprising the following components:ComponentWt. %SiO257.0 to 80.0â€‚â€‰Al2O30 to 5.0La2O30.1 to 6.0â€‚MgO0 to 5.0ZnO0 to 8.0B2O30 to 1.7K2Oâ€‚0 to 13.5Li2O11.0 to 19.0â€‚â€‰P2O50.5 to 8.0â€‚â€‰Color components0 to 8.0Additional components0 to 6.0whereinAl2O3+La2O3 equals 0.1 to 7.0 wt. % and MgO+ZnO equals 0.1 to 9.0 wt. %.