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Title:
PRODUCTION METHOD OF DRIED CELLULOSE NANOFIBERS
Document Type and Number:
WIPO Patent Application WO/2018/143149
Kind Code:
A1
Abstract:
A production method of dried cellulose nanofibers (CNFs) having sufficient redispersibility, and a method capable of improving redispersibility of CNFs are provided. The invention relates to: a dried CNF production method which involves mixing anion-modified CNFs and a redispersibility improving agent to obtain an aqueous suspension of anion-modified CNFs, and drying the aqueous suspension to obtain dried CNFs, wherein the redispersibility improving agent is selected from the group consisting of sugars with a molecular weight of less than or equal to 50,000, low molecular weight polypeptides, amino acids, and low molecular weight polyvinyl alcohol; and a CNF redispersibility improvement method which involves mixing anion-modified CNF and a redispersibility improving agent to obtain an aqueous suspension of anion-modified CNF, and drying the aqueous suspension, wherein the redispersibility improving agent is selected from the group consisting of sugars with a molecular weight less than or equal to 50,000, low molecular weight polypeptides, amino acids, and low molecular weight polyvinyl alcohol.

Inventors:
FUJITSUKI KAORI (JP)
HANNO KENJI (JP)
Application Number:
PCT/JP2018/002846
Publication Date:
August 09, 2018
Filing Date:
January 30, 2018
Export Citation:
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Assignee:
KATAYAMA CHEMICAL WORKS CO (JP)
JUJO PAPER CO LTD (JP)
International Classes:
C08B15/04; C08B5/00; C08B11/12; C08L1/04; C08L1/16; C08L1/26
Domestic Patent References:
WO2015107995A12015-07-23
WO2009069641A12009-06-04
Foreign References:
JP2016186018A2016-10-27
JPH10251446A1998-09-22
JP2017002231A2017-01-05
JP2012041489A2012-03-01
JP2015183096A2015-10-22
JP2014028935A2014-02-13
JP2008001728A2008-01-10
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (JP)
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