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:
Aug. 03, 2004
Filed:
Jan. 13, 2003
Thomas Karschti, Budenheim, DE;
Roland Leroux, Stadecken-Elsheim, DE;
Schott Glas, Mainz, DE;
Abstract
The fire-resistant glazing includes one or more glass pane, at least one of which consists of glass containing nucleating agents so that the glass pane is at least partially ceramicized when subjected to high thermal stress sufficient to cause ceramicizing, for example during a fire. The glass may be tempered and contains, in percent by weight based on oxide content SiO , 55 to 69; Al O , 19 to 25 and Li O, 3.2 to 5.0. This glass pane combines the advantages of the strength of tempered glass at low temperature with the stability and long-term resistance to thermal stress of glass-ceramic material at high temperature. The fire-resistant glazing can also include at least one other glass pane made of a conventional glass and at least one plastic layer of PVB film.