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:
May. 31, 2011
Filed:
Apr. 29, 2009
Franz Ott, Konnersreuth, DE;
Joerg Hinrich Fechner, Weiden, DE;
Max Raster, Budenheim, DE;
Reinhard Maennl, Mitterteich, DE;
Franz Ott, Konnersreuth, DE;
Joerg Hinrich Fechner, Weiden, DE;
Max Raster, Budenheim, DE;
Reinhard Maennl, Mitterteich, DE;
Schott AG, Mainz, DE;
Abstract
The borosilicate glass for pharmaceutical packaging has a transmission τ in the visible range of more than 80% at a wavelength of 400 nm, a transmission τ in the UV range of at most 0.1% at wavelengths under 260 nm (each at a sample thickness of 1 mm), a transformation temperature Tg of 550° C. to 590° C. and a processing temperature Vof 1100° C. to 1200° C. The glass has a composition, in wt. % on an oxide basis, of SiO, 60-80; BO, 5-15; AlO, 2-10; TiO, 0.5-7; Σ LiO+KO+NaO, 3-10; Σ alkaline earth oxides, 0.5-10; ZrO, 0-3; and FeO, 0-0.2. The glass is suitable for packaging UV-sensitive substances but nevertheless permits optical quality control.