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. 26, 2009
Filed:
Mar. 19, 2003
Laurent Teyssedre, Paris, FR;
Dominique Sachot, Ozoire la Ferriere, FR;
Laurent Teyssedre, Paris, FR;
Dominique Sachot, Ozoire la Ferriere, FR;
Saint-Gobain Glass France, Courbevoie, FR;
Abstract
A glass composition of the soda-lime-silicate type is described which includes, by weight, the following coloring agents: 0.2-0.45% of FeO(total iron), 2-8 ppm of Se, 0-20 ppm of CoO, and 0-80 ppm of NiO. The coloring agents satisfy the relationship, 0.7<(200×NiO) +(5000×Se)+(6×Fe)/(875×CoO)+(24×Fe)<1.6 in which the NiO, Se, Fe, CoO and Fecontents are expressed in ppm, Feand Feare the content of ferric iron expressed in the form of FeOand FeO, respectively. The composition has a redox from 0.28 to 0.5, an overall light transmission under illuminant A (T) greater than 65% and a selectivity (SE) of greater than 1.25, when measured for a thickness of 3.85 mm. A window formed from at least one glass sheet produced from the aforementioned composition is also described.