Thermally tempered glass element and use thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO RE49895
SERIAL NO

17526434

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Abstract

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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 104 dPa·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.-T13)/(CTELiq-CTEsSol) has a value of at most 5*106 K2. The CTELiq is a coefficient of linear thermal expansion of the glass above a glass transition temperature Tg, the CTESol is a coefficient of linear thermal expansion of the glass in a temperature range from 20° C. to 300° C., and the T13 is a temperature at which the glass has a viscosity of 1013 dPa·s.

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Patent Owner(s)

Patent OwnerAddress
SCHOTT AGGERMANY MAINZ MAINZ RHINELAND-PALATINATE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alkemper, Jochen Klein-Winternheim, DE 48 423
Mix, Christian Mainz, DE 14 8
Schwall, Michael Mainz, DE 26 71
Thomas, Peter Koblenz, DE 77 1132

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