Title:
NANOCELLULOSE DISPERSION LIQUID AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/196175
Kind Code:
A1
Abstract:
The present invention pertains to a nanocellulose dispersion liquid. Provided is a dispersion liquid of a nanocellulose, the dispersion liquid being free of concerns regarding the ill effects of counter ions as a result of: using, as a dispersion medium, a protic polar solvent having a dielectric constant not less than 15 but less than 80 at 25°C; and the nanocellulose including a sulfo group and/or a sulfate group derived from a sulfuric acid treatment and including an anionic functional group derived from a hydrophilization treatment, such that the total amount of the sulfate group, the sulfo group, and the anionic functional group is 0.20-4 mmol/g. Also provided is a method for producing said dispersion liquid without using complicated steps.
Inventors:
NAGAHAMA HIDEAKI (JP)
KINOSHITA YUUKI (JP)
KINOSHITA YUUKI (JP)
Application Number:
PCT/JP2020/012055
Publication Date:
October 01, 2020
Filing Date:
March 18, 2020
Export Citation:
Assignee:
TOYO SEIKAN GROUP HOLDINGS LTD (JP)
International Classes:
C08J3/02; C08B5/00; C08B5/14; C08B11/10
Foreign References:
| JP2019031696A | 2019-02-28 | |||
| JP2013253200A | 2013-12-19 | |||
| CN108359017A | 2018-08-03 | |||
| JP2015101694A | 2015-06-04 | |||
| JP2015196693A | 2015-11-09 |
Other References:
See also references of EP 3943529A4
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
Download PDF: