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:
Jun. 21, 2016
Filed:
May. 21, 2012
Applicants:
Makoto Kanou, Yokohama, JP;
Norifumi Hagiya, Yokohama, JP;
Inventors:
Makoto Kanou, Yokohama, JP;
Norifumi Hagiya, Yokohama, JP;
Assignee:
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 47/22 (2006.01); A61K 31/16 (2006.01); A61K 47/02 (2006.01); C07C 231/22 (2006.01); C07C 233/09 (2006.01); C12P 13/02 (2006.01); C07D 211/94 (2006.01);
U.S. Cl.
CPC ...
A61K 47/22 (2013.01); A61K 31/16 (2013.01); A61K 47/02 (2013.01); C07C 231/22 (2013.01); C07C 233/09 (2013.01); C07D 211/94 (2013.01); C12P 13/02 (2013.01);
Abstract
There is provided an aqueous acrylamide solution including 2,2,6,6-tetramethylpiperidine 1-oxyl in the ratio of 2 to 100 mg and manganese ions in the ratio of 0.2 to 2.0 mg per 1 kg of acrylamide. According to the present invention, an aqueous acrylamide solution having favorable quality and high stability with suppressed polymerization of acrylamide, a stabilizer used therefore, and a stabilization method can be provided.