Leucite glass ceramics

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9856165
SERIAL NO

14901120

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Abstract

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A leucite glass-ceramic is prepared from a glass comprising: about 66.8 to about 71.9 mol % of SiO2, about 8.5 to about 10.6 mol % of Al2O3, about 9.5 to about 12.8 mol % of K2O, about 0.5 to about 4.0 mol % of CaO, about 0 to about 3.0 mol % of TiO2, about 1.8 to about 4.0 mol % of Na2O, about 0.1 to about 6.0 mol % of Li2O, about 0 to about 1.0 mol % of MgO, about 0 to about 3.0 mol % of Nb2O5, and about 0 to about 3.0 mol % of B2O3. The leucite glass-ceramic is prepared by subjecting the glass components to a nucleation heat treatment, followed by a growth heat treatment. The leucite glass-ceramic may be used in the fabrication of a Dental restoration using various processes, and may be used in the construction of Dental restorations such as ceramic Dental inlays, crowns, veneers, bridges, veneering materials for zirconium oxide restoration substrates, alumina oxide restoration substrates, or metal restoration substrates.

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Patent Owner(s)

  • QUEEN MARY & WESTFIELD COLLEGE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cattell, Mike London, GB 1 3
Chen, Xiaohui Manchester, GB 50 238
Hill, Robert London, GB 72 1361
Karpukhina, Natalia London, GB 6 16
Theocharopoulos, Antonios Cork, IE 1 3

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