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Title:
CELLULOSE NANOFIBER POWDER AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2017179365
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cellulose nanofiber powder that can be handled in powder and in which making into a water dispersion or into a powder can be handled reversibly, and to provide a method for producing the same.SOLUTION: In the cellulose nanofiber (CNF) powder of the present invention, a hydrophobic polymer is chemically bonded to at least a part of the -OH group of CNF, and the powder, when made into a water dispersion and dried, has a property of returning to the powder again. The CNF powder of the present invention has, in a dry state, an inter-fiber distance of 3 nm or more, and preferably is 8 to 12 nm. The inter-fiber distance of the conventional CNF is about 1 nm, and the van der Waals force between the fibers (attraction force acting between fibers) is reduced to 1/1,000,000.SELECTED DRAWING: Figure 9

Inventors:
MIZUNO ASUKA
SUGIYAMA MINORU
Application Number:
JP2017059737A
Publication Date:
October 05, 2017
Filing Date:
March 24, 2017
Export Citation:
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Assignee:
TOYOTA AUTO BODY CO LTD
KURASHIKI BOSEKI KK
International Classes:
C08B15/00; D06M13/03; D06M14/22; D21H11/18
Domestic Patent References:
JP2015059155A2015-03-30
JP2015134418A2015-07-27
JP2017014509A2017-01-19
JPS6232142A1987-02-12
JPS5789687A1982-06-04
JP2003020338A2003-01-24
JP2002053670A2002-02-19
Foreign References:
WO2016010016A12016-01-21
Attorney, Agent or Firm:
特許業務法人池内・佐藤アンドパートナーズ