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Title:
MICROFILAMENT-LIKE CELLULOSE, DISPERSION LIQUID, SHEET, LAYERED SHEET, LAMINATE, AND METHOD FOR PRODUCING MICROFILAMENT-LIKE CELLULOSE
Document Type and Number:
WIPO Patent Application WO/2021/235501
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a microfilament-like cellulose that can, when being used for a dispersion liquid or a sheet, increase transparency and suppress coloring. The present invention pertains to a microfilament-like cellulose that has a fiber width of 1-10 nm and has a substituent introduced amount of less than 0.5 mmol/g. The present invention also pertains to a dispersion liquid and a sheet containing the microfilament-like cellulose. The present invention further pertains to a method for producing said microfilament-like cellulose, the method comprising a step (A) for removing, from a microfilament-like cellulose having substituents and having a fiber width of 1000 nm or less, at least a portion of the substituents; and, after the step (A), a step (B) for performing a uniform dispersion treatment on the obtained microfilament-like cellulose.

Inventors:
SUGIYAMA IKUE (JP)
MATSUBARA YUSUKE (JP)
SHISHIDO RINA (JP)
FUSHIMI HAYATO (JP)
NISHIKORI YOSHIHARU (JP)
Application Number:
PCT/JP2021/019070
Publication Date:
November 25, 2021
Filing Date:
May 19, 2021
Export Citation:
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Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
D21H11/18; A61K6/898; B32B27/10; C08B3/00; C08B5/00; D21H11/20
Domestic Patent References:
WO2017126432A12017-07-27
WO2013176049A12013-11-28
WO2014115560A12014-07-31
WO2013176049A12013-11-28
WO2015182438A12015-12-03
WO2017111103A12017-06-29
WO2017126432A12017-07-27
WO2011013567A12011-02-03
Foreign References:
JP2014141772A2014-08-07
JP2020055975A2020-04-09
JP2014034673A2014-02-24
JP2019001876A2019-01-10
JP2019199671A2019-11-21
JP2017066556A2017-04-06
JP2015098526A2015-05-28
JP2019007101A2019-01-17
JP2017056715A2017-03-23
JP2014079938A2014-05-08
JP2010023275A2010-02-04
Other References:
SEAGAL ET AL., TEXTILE RESEARCH JOURNAL, vol. 29, 1959, pages 786
Attorney, Agent or Firm:
SIKs & Co. (JP)
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