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. 28, 1999
Filed:
Sep. 30, 1997
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
An ultraviolet and infrared radiation absorbing glass having excellent ultraviolet radiation absorbing power and a bronze or neutral gray tint which is suitably used as a window glass for vehicles of automobiles and also as a window glass for construction materials is provided. The glass comprises, in % by weight: basic glass components comprising 65 to 80% SiO.sub.2, 0 to 5% B.sub.2 O.sub.3, 0 to 5% Al.sub.2 O.sub.3, 0 to 10% MgO, 5 to 15% CaO, 10 to 18% Na.sub.2 O, 0 to 5% K.sub.2 O, 5 to 15% MgO+CaO, and 10 to 20% Na.sub.2 O+K.sub.2 O, and coloring components comprising 0.20 to 0.50% total iron oxide (T-Fe.sub.2 O.sub.3) in terms of Fe.sub.2 O.sub.3, 0 to 3.0% CeO.sub.2, 0.025 to 6.0% La.sub.2 O.sub.3, 0 to 2.0% TiO.sub.2, 0.0002 to 0.005% CoO, 0.0002 to 0.005% Se, 0 to 0.01% NiO, and 0 to 1.0% SnO.sub.2, wherein 5 to 25% of said T-Fe.sub.2 O.sub.3 in terms of Fe.sub.2 O.sub.3 is FeO.