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:
Aug. 25, 2026
Filed:
Nov. 24, 2021
Applicant:
Saint-gobain TM K.k., Tokyo, JP;
Inventors:
Assignee:
Saint-Gobain TM K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/49 (2006.01); F27D 1/00 (2006.01);
U.S. Cl.
CPC ...
C04B 35/49 (2013.01); F27D 1/0006 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/725 (2013.01); C04B 2235/727 (2013.01); C04B 2235/77 (2013.01); C04B 2235/9669 (2013.01);
Abstract
A high zirconia electrically-fused cast refractory has a chemical composition including more than 95% by mass and 98% by mass or less of ZrO, 0.1 to 1.5% by mass of AlO, 1 to 2.5% by mass of SiO, 0 to 0.1% by mass of KO, 0.01 to 0.3% by mass of NaO and KO in total, 0.02 to 0.4% by mass of BO, 0.01 to 0.6% by mass of BaO, 0.01 to 0.4% by mass of SnO, 0.3% by mass or less of FeOand TiOin total, and 0.04% by mass or less of PO, wherein the contents of BOand SnOsatisfy the following Formulas (1) and (2): In Formula (2), Crepresents the content of SnO, and Crepresents the content of BO, expressed in % by mass in the refractory.