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. 09, 2021
Filed:
Dec. 20, 2017
Applicant:
Posco, Pohang-si, KR;
Inventors:
Min Soo Han, Pohang-si, KR;
Jong-Tae Park, Pohang-si, KR;
Chang Soo Park, Pohang-si, KR;
Yunsu Kim, Pohang-si, KR;
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/46 (2006.01); C21D 8/12 (2006.01); C21D 6/00 (2006.01); C22C 38/60 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/00 (2006.01); H01F 1/18 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01); C21D 8/1283 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/60 (2013.01); H01F 1/18 (2013.01); C22C 2202/02 (2013.01);
Abstract
The present invention provides an annealing separator composition for a grain-oriented electrical steel sheet, a grain-oriented electrical steel sheet and a method for manufacturing a grain-oriented electrical steel sheet. An annealing separator composition for a grain-oriented electrical steel sheet according to an embodiment of the present invention comprises: 100 parts by weight of at least one of magnesium oxide and magnesium hydroxide; 5 to 200 parts by weight of aluminum hydroxide; and 0.1 to 20 parts by weight of a boron compound.