The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2018
Filed:
Jun. 27, 2014
Queen Mary and Westfield College University of London, London, GB;
Antonios Theocharopoulos, Cork, IE;
Xiaohui Chen, Manchester, GB;
Natalia Karpukhina, London, GB;
Robert Hill, London, GB;
Mike Cattell, London, GB;
Abstract
A leucite glass-ceramic is prepared from a glass comprising: about 66.8 to about 71.9 mol % of SiO, about 8.5 to about 10.6 mol % of AlO, about 9.5 to about 12.8 mol % of KO, about 0.5 to about 4.0 mol % of CaO, about 0 to about 3.0 mol % of TiO, about 1.8 to about 4.0 mol % of NaO, about 0.1 to about 6.0 mol % of LiO, about 0 to about 1.0 mol % of MgO, about 0 to about 3.0 mol % of NbO, and about 0 to about 3.0 mol % of BO. 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.