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. 17, 2021
Filed:
Feb. 16, 2016
Applicant:
Nippon Paper Industries Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
NIPPON PAPER INDUSTRIES CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/36 (2006.01); C08J 3/03 (2006.01); C08J 3/05 (2006.01); G01N 33/34 (2006.01); G01N 15/02 (2006.01); G01N 15/14 (2006.01); C08L 1/02 (2006.01); C08J 3/09 (2006.01); C08J 3/215 (2006.01); D21H 11/18 (2006.01); D21H 11/20 (2006.01); D21H 17/67 (2006.01); G01N 1/38 (2006.01); G02B 21/34 (2006.01); G01N 15/00 (2006.01);
U.S. Cl.
CPC ...
G01N 33/36 (2013.01); C08J 3/03 (2013.01); C08J 3/05 (2013.01); C08J 3/09 (2013.01); C08J 3/215 (2013.01); C08L 1/02 (2013.01); D21H 11/18 (2013.01); D21H 11/20 (2013.01); D21H 17/67 (2013.01); G01N 1/38 (2013.01); G01N 15/0227 (2013.01); G01N 15/1463 (2013.01); G01N 33/343 (2013.01); G02B 21/34 (2013.01); C08J 2301/02 (2013.01); G01N 2015/0053 (2013.01); G01N 2015/0092 (2013.01); G01N 2015/1493 (2013.01);
Abstract
Herein provided are methods for evaluating cellulose nanofiber dispersions, comprising the steps of: (1) preparing a cellulose nanofiber dispersion; (2) adding a color material into the cellulose nanofiber dispersion; and (3) observing the cellulose nanofiber dispersion to which a colored pigment has been added with a light microscope. The methods allow for easy evaluation of whether or not agglomerates of cellulose nanofibers exist in cellulose nanofiber dispersions, which cannot be visually determined.