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. 28, 2002
Filed:
Mar. 14, 2000
Hiromitsu Seto, Osaka, JP;
Yukihito Nagashima, Osaka, JP;
Isamu Kuroda, Osaka, JP;
Shigekazu Yoshii, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
An ultraviolet/infrared absorbent low transmittance glass consists of base glass, and colorants. The base glass comprises 65 to 80 wt. % SiO ; 0 to 5 wt. % Al O ; greater than 2 to less than or equal to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is 7 to 15 wt. %; 10 to 18 wt. % Na O; 0 to 5 wt. % K O wherein a total amount of Na O and K O is 10 to 20 wt. %; and 0 to 5 wt. % B O . The colorants without Se is formed of 1.25 to 2.2 wt. % total iron oxide (T—Fe O ) expressed as Fe O ; 0.001 to 0.03 wt. % CoO; and 0.003 to 0.2 wt. % NiO. The glass has a turquoise blue or deep green color, and exhibits low or middle visible light transmittance, low total solar energy transmittance and low ultraviolet transmittance.