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:
Dec. 27, 2016
Filed:
Aug. 08, 2013
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Jumpei Kishimoto, Kanagawa, JP;
Atsushi Minamino, Kanagawa, JP;
Hiroyuki Kurihara, Kanagawa, JP;
Katsushige Yamada, Kanagawa, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 231/24 (2006.01); C07C 235/34 (2006.01);
U.S. Cl.
CPC ...
C07C 231/24 (2013.01); C07C 231/24 (2013.01); C07C 235/34 (2013.01);
Abstract
A method of manufacturing coumaramide includes treating cellulose-based biomass with an ammonia-containing treatment agent to obtain ammonia-treated biomass, immersing the ammonia-treated biomass into a solvent containing at least water and eluting coumaramide in the ammonia-treated biomass into the solvent to obtain a coumaramide solution, and precipitating coumaramide in the coumaramide solution as a crystal to obtain a coumaramide crystal.