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:
Nov. 24, 2015
Filed:
Jul. 25, 2013
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Abstract
To provide a heat-absorbing glass plate which satisfies both low solar transmittance and high visible light transmittance, presents a green color as transmitted light and contains a small number of coloring components. The heat-absorbing glass plate of the present invention has a solar transmittance of at most 42% calculated as 4 mm thickness, has a visible light transmittance (by illuminant A, 2° visual field) of at least 70% calculated as 4 mm thickness, and provides a transmitted light having a dominant wavelength of from 492 to 520 nm, and it is made of soda lime silica glass having substantially the following composition, as represented by mass % based on oxides. SiO: 65 to 75%, AlO: more than 3% and at most 6%, MgO: at least 0% and less than 2%, CaO: 7 to 10%, total iron as calculated as FeO: 0.45 to 0.65%, and TiO: 0.2 to 0.8%, and contains substantially no member selected from the group consisting of CoO, CrO, VOand MnO, wherein the proportion of the mass of divalent FeO in the mass of total iron which is the amount of total iron as calculated as FeO, is more than 42% and at most 60%.