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:
Jul. 20, 2021
Filed:
Nov. 05, 2018
Applicant:
Ube Materials Industries, Ltd., Ube, JP;
Inventors:
Assignee:
UBE MATERIAL INDUSTRIES, LTD., Ube, JP;
Primary Examiner:
Int. Cl.
CPC ...
B22F 1/00 (2006.01); B22F 9/04 (2006.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
B22F 1/0011 (2013.01); B22F 1/0081 (2013.01); B22F 9/04 (2013.01); B22F 2302/25 (2013.01); C08K 3/22 (2013.01); C08K 2003/222 (2013.01);
Abstract
A magnesium oxide powder has: a median diameter (D) of 5 to 100 μm; a MgO purity of 98% by mass or more; a Ca compound content of 2% by mass or less in terms of CaO; and when the magnesium oxide powder is immersed in pure water and allowed to stand at 95° C. for 24 hours, a mass ratio of calcium ions to magnesium ions, Ca/Mg, in an aqueous solution of 10 or less.