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:
Oct. 09, 2012
Filed:
Jun. 11, 2010
Applicants:
Joerg Hinrich Fechner, Mainz, DE;
Christof Kass, Tirschenreuth, DE;
Inventors:
Joerg Hinrich Fechner, Mainz, DE;
Christof Kass, Tirschenreuth, DE;
Assignee:
Schott AG, Mainz, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/083 (2006.01); C03C 3/093 (2006.01);
U.S. Cl.
CPC ...
Abstract
The neutral glass according to the present invention is characterized by excellent hydrolytic stability, a relatively low processing temperature and low content of boron oxide. Here, the neutral glass has the following composition, in percent by weight based on oxide content: SiO, 70-79; BO, 0-<5; AlO, <5; ZrO, 0.5-<5; TiO, 0.5-6; NaO, 1-6; KO, 3 to 8; and LiO, 0-0.5, wherein a total amount of SiOand BOis less than 83 percent by weight.