Title:
METHOD FOR PRODUCING ANIONICALLY MODIFIED CELLULOSE NANOFIBERS
Document Type and Number:
WIPO Patent Application WO/2019/059079
Kind Code:
A1
Abstract:
This method for producing anionically modified cellulose nanofibers comprises: a preparation step for preparing an anionically modified cellulose; a defibration step for obtaining an anionically modified cellulose nanofiber salt by defibrating the anionically modified cellulose obtained in the preparation step; a desalting step for obtaining anionically modified cellulose nanofibers by desalting the anionically modified cellulose nanofiber salt obtained in the defibration step by subjecting the anionically modified cellulose nanofiber salt to a cation exchange reaction using a cation exchange resin; and a recovery step for recovering the cation exchange resin from a mixture that is obtained in the desalting step and contains the anionically modified cellulose nanofibers and the cation exchange resin.
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Inventors:
NAKAYAMA TAKESHI (JP)
MATSUMOTO MAKOTO (JP)
WATANABE KEIGO (JP)
MATSUMOTO MAKOTO (JP)
WATANABE KEIGO (JP)
Application Number:
PCT/JP2018/033924
Publication Date:
March 28, 2019
Filing Date:
September 13, 2018
Export Citation:
Assignee:
JUJO PAPER CO LTD (JP)
International Classes:
C08B11/12; C08B5/00; C08B15/04; D21H11/18
Domestic Patent References:
| WO2017099078A1 | 2017-06-15 | |||
| WO2017141800A1 | 2017-08-24 | |||
| WO2017138589A1 | 2017-08-17 | |||
| WO2002060487A1 | 2002-08-08 | |||
| WO2017078084A1 | 2017-05-11 | |||
| WO2016066904A1 | 2016-05-06 |
Foreign References:
| JP2017066556A | 2017-04-06 | |||
| JP2017065109A | 2017-04-06 | |||
| JP2017088693A | 2017-05-25 | |||
| JPS5956402A | 1984-03-31 | |||
| JP2015508839A | 2015-03-23 | |||
| JP6228707B1 | 2017-11-08 |
Attorney, Agent or Firm:
FUJIMOTO Yoshihiro (JP)
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