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:
May. 03, 2016
Filed:
May. 15, 2013
Hokuetsu Kishu Paper Co., Ltd., Niigata, JP;
The University of Tokyo, Tokyo, JP;
Junji Nemoto, Niigata, JP;
Toshihiko Soyama, Niigata, JP;
Akira Isogai, Tokyo, JP;
Tsuguyuki Saito, Tokyo, JP;
HOKUETSU KISHU PAPER CO., LTD., Niigata, JP;
THE UNIVERSITY OF TOKYO, Tokyo, JP;
Abstract
A porous body that contains cellulose nanofibers having very thin fiber diameters and high hydrophilicity, and has a large specific surface area, and to provide a method of producing the porous body simply with low cost. A method of producing a porous cellulose comprises a process of lyophilizing a mixed liquid containing cellulose nanofibers and a dispersion medium, wherein the dispersion medium is a mixed dispersion medium of water and an organic solvent dissolving in water, a concentration of the organic solvent in the mixed dispersion medium is 2 to 40 mass %, and a solid content concentration of the cellulose nanofibers in the mixed liquid is 0.001 to 5 mass %.