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:
Sep. 30, 2014
Filed:
Jul. 13, 2011
Kazuhiro Shimoda, Nishinomiya, JP;
Tomio Yamakawa, Kawanishi, JP;
Koji Muramatsu, Takatsuki, JP;
Yuji Inoue, Amagasaki, JP;
Junichi Nishimori, Kobe, JP;
Yasuyoshi Hidaka, Kobe, JP;
Keishi Matsumoto, Takarazuka, JP;
Takahisa Kato, Tokai, JP;
Shuichi Akiyama, Obu, JP;
Kazuhiro Shimoda, Nishinomiya, JP;
Tomio Yamakawa, Kawanishi, JP;
Koji Muramatsu, Takatsuki, JP;
Yuji Inoue, Amagasaki, JP;
Junichi Nishimori, Kobe, JP;
Yasuyoshi Hidaka, Kobe, JP;
Keishi Matsumoto, Takarazuka, JP;
Takahisa Kato, Tokai, JP;
Shuichi Akiyama, Obu, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
There is provided an antioxidant agent capable of preventing scale from being produced on the surface of a heated metallic starting material more effectively than the conventional antioxidant agent. The antioxidant agent according to the present invention contains a plurality of glass frits having different softening points and an inorganic compound having a melting point not higher than 600° C. The inorganic compound mainly softens in the low-temperature range of about 600° C. The plurality of glass frits mainly soften in the low-temperature range of about 600 to 1300° C. Therefore, the antioxidant agent covers the surface of metallic starting material in a broad temperature range, oxidizes the surface of metallic starting material, and prevents the production of scale.