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:
Jan. 12, 2016
Filed:
Feb. 28, 2012
Applicants:
Shiro Tsubokura, Takaoka, JP;
Toru Suzuki, Myoko, JP;
Michiaki Maruyama, Myoko, JP;
Yasuyuki Aiura, Myoko, JP;
Inventors:
Shiro Tsubokura, Takaoka, JP;
Toru Suzuki, Myoko, JP;
Michiaki Maruyama, Myoko, JP;
Yasuyuki Aiura, Myoko, JP;
Assignee:
NIPPON SODA CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 303/40 (2006.01); C01B 21/087 (2006.01); C01B 21/093 (2006.01); C01B 21/086 (2006.01);
U.S. Cl.
CPC ...
C01B 21/086 (2013.01); C01B 21/087 (2013.01); C01B 21/093 (2013.01); C07C 303/40 (2013.01);
Abstract
By reacting a fluorine-containing sulfonylimide ammonium salt such as ammonium N,N-di(fluorosulfonyl)imide with an alkali metal hydroxide such as lithium hydroxide, potassium hydroxide or sodium hydroxide under reduced pressure and at a low temperature of approximately 40° C., a fluorine-containing sulfonylimide alkali metal salt such as lithium N,N-di(fluorosulfonyl)imide, potassium N,N-di(fluorosulfonyl)imide or sodium N,N-di(fluorosulfonyl)imide is obtained.