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. 01, 2023
Filed:
Jun. 01, 2018
Applicant:
Toagosei Co., Ltd., Minato-ku, JP;
Inventors:
Daisuke Kamiya, Minato-ku, JP;
Shiroshi Matsuki, Nagoya, JP;
Assignee:
TOAGOSEI CO., LTD., Minato-Ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08B 15/04 (2006.01); C08B 15/02 (2006.01); C08B 15/00 (2006.01);
U.S. Cl.
CPC ...
C08B 15/04 (2013.01); C08B 15/02 (2013.01); C08B 15/00 (2013.01);
Abstract
An object of the present invention is to provide an efficient method for producing cellulose nanofibers, without N-oxyl compounds such as TEMPO remaining in the cellulose nanofibers. Provided is a method for producing cellulose nanofibers, the method including: oxidizing a cellulose raw material with hypochlorous acid, or a salt thereof, having an available chlorine concentration of from 14% by mass to 43% by mass, to produce an oxidized cellulose; and fibrillating the oxidized cellulose into nanofibers.