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:
Feb. 06, 2001
Filed:
Aug. 18, 1999
Applicant:
Inventors:
Burkhard Speit, Mainz, DE;
Silke Wolff, Huekeswagen, DE;
Peter Brix, Mainz, DE;
Monika Gierke, Wiesbaden, DE;
Assignee:
Schott Glas, Mainz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 1/002 ; C03C 3/068 ;
U.S. Cl.
CPC ...
C03C 1/002 ; C03C 3/068 ;
Abstract
High E-moduli glasses and glass-ceramics are disclosed based on the SiO,—B,O,—RO—R,O—ZrO,—TiO,—Nb,O,—La,O,system. The chemically pre-stressable glasses are lithium-poor or lithium-free. The glass-ceramics contain from 2 to 9 percent by weight lithium and the predominant crystalline phase is lithium titanate. These glasses and glass-ceramics particularly have a high specific E-modulus.