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. 23, 2023
Filed:
Jun. 13, 2018
Kyoto University, Kyoto, JP;
Daio Paper Corporation, Shikokuchuo, JP;
Yoshinobu Tsujii, Kyoto, JP;
Keita Sakakibara, Kyoto, JP;
Koji Tanaka, Ichihara, JP;
Takahito Ikuma, Sakura, JP;
Junya Okawa, Shikokuchuo, JP;
Ikko Matsusue, Shikokuchuo, JP;
KYOTO UNIVERSITY, Kyoto, JP;
DAIO PAPER CORPORATION, Ehime, JP;
Abstract
Provided are: a fine cellulose fiber that is superior in handling properties and that can suitably be used as a reinforcing material or the like for resin; a production method of the fine cellulose fiber; and a slurry and a composite comprising the fine cellulose fibers. The present invention pertains to fine cellulose fibers comprising a carbamate group. The degree of substitution with the carbamate group with respect to hydroxy groups in the fine cellulose fibers is preferably no less than 0.05 and no greater than 0.5. The present invention pertains to a slurry comprising the fine cellulose fibers, to a composite comprising the fine cellulose fibers and a resin, and to a production method of the fine cellulose fibers, comprising performing a heat treatment on a mixture of a plant raw material and urea or the like, and performing a miniaturization treatment of the plant raw material.