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1. (WO2018143150) METHOD FOR PRODUCING DRY CELLULOSE NANOFIBERS

Pub. No.:    WO/2018/143150    International Application No.:    PCT/JP2018/002847
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Jan 31 00:59:59 CET 2018
IPC: C08B 15/04
C08B 5/00
C08B 11/12
C08L 1/04
C08L 1/16
C08L 1/26
Applicants: KATAYAMA CHEMICAL INC.
株式会社片山化学工業研究所
NIPPON PAPER INDUSTRIES CO., LTD.
日本製紙株式会社
Inventors: FUJITSUKI Kaori
藤槻薫麗
HANNO Kenji
半埜賢治
Title: METHOD FOR PRODUCING DRY CELLULOSE NANOFIBERS
Abstract:
Provided are a method for producing dry cellulose nanofibers (CNF) having adequate redispersibility, and a method with which it is possible to improve the redispersibility of CNF. The present invention pertains to: a method for producing dry CNF, the method including mixing anion-modified CNF and a redispersibility-improving agent to obtain an aqueous suspension of anion-modified CNF, and drying the aqueous suspension to obtain dry CNF, the redispersibility-improving agent being a water-soluble nonionic surfactant; and a method for improving the redispersibility of CNF, the method including mixing anion-modified CNF and a redispersibility-improving agent to obtain an aqueous suspension of anion-modified CNF, and drying the aqueous suspension, the redispersibility-improving agent being a water-soluble nonionic surfactant.