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. 03, 2009
Filed:
Jun. 13, 2007
Hiromitsu Seto, Osaka, JP;
Nobuyuki Yamamoto, Osaka, JP;
Hiroyuki Tanaka, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Tokyo, JP;
Abstract
A laminated glass having a low haze ratio and an excellent infrared rays shield performance and a glass composition suitable for use in a laminated glass and easy with respect to melting and molding works, which is a glass composition comprising 65 to 74% of SiO, 0 to 5% of BO, 1.9 to 2.5% of AlO, 1.0 to 3.0% of MgO, 5 to 10% of CaO, 0 to 10% of SrO, 0 to 10% of BaO, 0 to 5% of LiO, 13 to 17% of NaO, 0.5 to 5% of KO, 0 to 0.40% of TiOand 0.3 to 2.0% of total iron oxide in terms of FeO, on a weight basis, in which the sum of MgO, CaO, SrO and BaO is from 10 to 15% and the sum of LiO, NaO and KO is from 14 to 20%, wherein the glass composition has a visible light transmittance of 80% or more as measured with the CIE Standard illuminant A and a total solar energy transmittance of not more than 62% at a thickness of 2.1 mm, and a laminated glass using a glass sheet made of that glass composition.