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:
Aug. 25, 2015
Filed:
Jul. 12, 2010
Applicants:
Akio Kamimura, Yamaguchi, JP;
Kouji Kaiso, Yamaguchi, JP;
Tsunemi Sugimoto, Yamaguchi, JP;
Inventors:
Assignees:
YAMAGUCHI UNIVERSITY, , JP;
UBE INDUSTRIES, LTD, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/31 (2006.01); C07C 51/06 (2006.01); C07C 67/20 (2006.01);
U.S. Cl.
CPC ...
C07C 67/20 (2013.01);
Abstract
To provide a method for the production of a hydroxycarboxylic acid derivative, by which a hydroxycarboxylic acid derivative, which can be reused in various applications, can be obtained from a polyamide at a high yield without consuming a large amount of energy. A method for the production of a hydroxycarboxylic acid derivative, which is characterized by including allowing an alcohol in a supercritical state to act on a polyamide in the presence of a carboxylic acid derivative to depolymerize the polyamide to obtain the hydroxycarboxylic acid derivative.