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:
Sep. 13, 1994
Filed:
Apr. 08, 1992
Applicant:
Inventors:
Ernst Winter, Etzenricht, DE;
Friedrich Marwan, Weiden, DE;
Joachim Bretschneider, Weiden, DE;
Hubert Drexler, Regensburg, DE;
Assignee:
Flachglas AG, Furth/Bavaria, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428426 ; 4284111 ; 428429 ; 428430 ; 428432 ; 428446 ; 428448 ; 428921 ; 501 55 ; 501 68 ; 501 69 ; 501 70 ; 501 71 ; 501 72 ;
Abstract
A soda-lime glass containing vanadium which can be produced by the float process with high UV absorption for wavelengths below 350 nm. The glass comprises 70 to 74 weight % SiO.sub.2, 0 to 2 weight % Al.sub.2 O.sub.3, 0.1 weight % or less Fe.sub.2 O.sub.3, 0 to 0.15 weight % TiO.sub.2, 7.5 to 10 weight % CaO, 3.5 to 5.4 weight % MgO, 12 to 15 weight % Na.sub.2 O, 0 to 1 weight % K.sub.2 O, 0 to 0.02 weight % BaO, 0.1 to 0.3 weight % SO.sub.3, 3 to 7 weight ppm CoO and 0.1 to 0.3 weight % V.sub.2 O.sub.5.