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. 18, 2011
Filed:
Jun. 26, 2009
Larry J. Shelestak, Bairdford, PA (US);
George B. Goodwin, Cranberry Township, PA (US);
Amarendra Mishra, Allison Park, PA (US);
James M. Baldauff, Pittsburgh, PA (US);
Larry J. Shelestak, Bairdford, PA (US);
George B. Goodwin, Cranberry Township, PA (US);
Amarendra Mishra, Allison Park, PA (US);
James M. Baldauff, Pittsburgh, PA (US);
Schott AG, Mainz, DE;
Abstract
A glass composition for chemical tempering includes oxides in wt % ranges of: SiO60 to 75; AlO18 to 28; LiO 3 to 9; NaO 0 to 3; KO 0 to 0.5; CaO 0 to 3; MgO 0 to 3; ZrO0 to 3; where MgO+CaO is 0 to 6 wt %; AlO+ZrOis 18 to 28 wt %, and NaO+KO is 0.05 to 3.00 wt %. The glass has a log 10 viscosity temperature in the temperature range of 1328° F. (720° C.) to 1499° F. (815° C.); a liquidus temperature in the temperature range of 2437° F. (1336° C.) to 2575° F. (1413° C.), and a log 7.6 softening point temperature in the temperature range of 1544° F. (840° C.) to 1724° F. (940° C.). The chemically tempered glass has, among other properties, an abraded modulus of rupture of 72 to 78 KPSI, and a modulus of rupture of 76 to 112 KPSI.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile