Patent ID: 8956987
Filing Date: 2015-02-17
Classification: A61C,A61K,C03B,C03C,G01J

Abstract:
1. A lithium disilicate glass-ceramic having the following composition: 55 to 70% by weight of SiO 10 to 15% by weight of Li 10 to 20% by weight of the stabiliser selected from the group consisting of ZrO 0.1 to 5% by weight of K 0.1 to 5% by weight of Al 0 to 10% by weight of additives selected from the group consisting of boron oxide, phosphorus oxide, fluorine, sodium oxide, barium oxide, strontium oxide, magnesium oxide, zinc oxide, calcium oxide, yttrium oxide, titanium oxide, niobium oxide, tantalum oxide, lanthanum oxide and mixtures thereof, and 0 to 10% by weight of colourants.