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:
Dec. 03, 2019
Filed:
Nov. 23, 2016
Schott Ag, Mainz, DE;
Michael Schwall, Mainz, DE;
Christian Mlx, Mainz, DE;
Jochen Alkemper, Klein-Winternheim, DE;
Peter Thomas, Koblenz, DE;
SCHOTT AG, Mainz, DE;
Abstract
A thermally tempered glass element is provided made of glass with two opposite faces that are under compressive stress of at least 40 MPa. The glass has a working point at which the glass has a viscosity of 10dPa·s of at most 1350° C. The glass has a viscosity versus temperature profile and a coefficient of thermal expansion versus temperature profile of the glass are such that a variable (750° C.−T)/(CTE−CTE) has a value of at most 5*10K. The CTEis a coefficient of linear thermal expansion of the glass above a glass transition temperature T, the CTEis a coefficient of linear thermal expansion of the glass in a temperature range from 20° C. to 300° C., and the Tis a temperature at which the glass has a viscosity of 10dPa·s.