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. 06, 2006
Filed:
Oct. 03, 2002
Takashi Ueda, Kanagawa, JP;
Makoto Saito, Kanagawa, JP;
Tohru Katoh, Wakayama, JP;
Katsuhisa Inoue, Wakayama, JP;
Takashi Ueda, Kanagawa, JP;
Makoto Saito, Kanagawa, JP;
Tohru Katoh, Wakayama, JP;
Katsuhisa Inoue, Wakayama, JP;
Showa Denko K.K., Tokyo, JP;
Kao Corporation, Tokyo, JP;
Abstract
An aqueous high-concentration solution of N,N-dialkylglycine, economical, easy to handle, and useful for subsequent organic chemical reactions, is provided. Also is provided a process for production thereof. The aqueous high-concentration solution of N,N-dialkylglycine which contains the N,N-dialkylglycine at a concentration of 30–80% by mass, and a metal-mineral acid salt at a content of 0.3–3% by mass can be produced industrially from an aqueous N,N-dialkylglycine alkali metal salt as the source material by the steps of