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. 29, 2022
Filed:
Oct. 29, 2019
Applicant:
Nisshinbo Holdings Inc., Tokyo, JP;
Inventor:
Gen Masuda, Chiba, JP;
Assignee:
NISSHINBO HOLDINGS INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 275/06 (2006.01); C07C 211/63 (2006.01); C07D 295/08 (2006.01); C07D 295/088 (2006.01);
U.S. Cl.
CPC ...
C07D 275/06 (2013.01); C07C 211/63 (2013.01); C07D 295/088 (2013.01);
Abstract
An ammonium salt having a saccharin anion, which is represented by formula (1), exhibits excellent thermal stability even though no halogen atom is contained therein. (In the formula, each of R-Rindependently represents an alkyl group having 1-4 carbon atoms or an alkoxyalkyl group that is represented by —(CH)—OR (wherein R represents an alkyl group having 1-4 carbon atoms, and n represents an integer of 1 or 2). Incidentally, any two of the R-Rmay combine with each other to form a ring together with a nitrogen atom.