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:
Oct. 14, 2009
Joerg Hinrich Fechner, Weiden, DE;
Franz Ott, Konnersreuth, DE;
Joerg Hinrich Fechner, Weiden, DE;
Franz Ott, Konnersreuth, DE;
Schott AG, Mainz, DE;
Abstract
The borosilicate glass with improved solarization-resistance has a transmittance curve within an area bounded by respective curves defined by the corresponding equations τ=1.7·(λ−277) and τ=1.6·(λ−284) in a wavelength range of 283 nm to 325 nm. This glass has a composition, in wt. % based on oxide content, of: 55-82, SiO; 10-20, BO; 1-10, AlO; 0-5, LiO; 0-10, NaO; 0-10, KO; 0-10, ΣMO; 0-5, MgO; 0-10, CaO; 0-5, SrO; 0-15, BaO; 0-15, ΣMO; 0-3, ZrO; 0-5, ZnO; 0-2, CeO; 0-3, WO; 0-2, SnO: 0-0.1, FeO; 0.05-2, MoO; 0-5, BiO; 0-1, TiOand 0-5, oxides of selected rare earth and Group IVB to VIIIB elements. The transmittance is adjusted by varying the MoOcontent and if necessary the TiOand BiOcontent. The glass is especially suitable for use in a weathering apparatus.