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:
Apr. 20, 1976
Filed:
Feb. 25, 1974
Applicant:
Inventors:
Miyoji Dazai, Yokkaichi, JA;
Katsumi Sugiyama, Kawasaki, JA;
Masaaki Iida, Yokohama, JA;
Hideo Tazuke, Tokyo, JA;
Hiroo Kageyama, Kamakura, JA;
Assignee:
Ajinomoto Company, Ltd., Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26032645 ;
Abstract
Hemi-alkali metal salts of 2-pyrrolidone-5-carboxylic acid, believed to have the formula: ##SPC1## Wherein Me is an alkali metal, is formed by reaction of 0.75 to 0.99 moles of an alkali metal hydroxide per mole of 2-pyrrolidone-5-carboxylic acid.