Title:
CELLULOSE NANOFIBERS, METHOD FOR PRODUCING SAME, AQUEOUS DISPERSION USING CELLULOSE NANOFIBERS, AND FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2015/037658
Kind Code:
A1
Abstract:
The present invention relates to: cellulose nanofibers which exhibit excellent dispersibility in water and can be contained in a water-soluble polymer at a high concentration; and a method for obtaining the cellulose nanofibers. The present invention also relates to a fiber-reinforced composite material using the cellulose nanofibers.
Cellulose nanofibers having an average polymerization degree of from 100 to 800 (inclusive) and an aspect ratio of from 150 to 2,000 (inclusive) are produced by subjecting an unmodified cellulose to an enzyme and/or acid treatment and to a mechanical shearing treatment. Since the cellulose nanofibers exhibit good dispersibility and can be dispersed in a water-soluble polymer at a high concentration, there can be obtained a fiber-reinforced composite material having a high strength.
Inventors:
WADA MASANORI (JP)
YOSHIMURA AKIRA (JP)
AMANO YOSHIHIKO (JP)
YOSHIMURA AKIRA (JP)
AMANO YOSHIHIKO (JP)
Application Number:
PCT/JP2014/074058
Publication Date:
March 19, 2015
Filing Date:
September 11, 2014
Export Citation:
Assignee:
NITTO BOSEKI CO LTD (JP)
International Classes:
D01F2/00; C08J5/06; D21H11/18; D21H15/02
Domestic Patent References:
| WO2013176033A1 | 2013-11-28 |
Foreign References:
| JP2012046848A | 2012-03-08 | |||
| JP2012180602A | 2012-09-20 | |||
| JP2013163773A | 2013-08-22 | |||
| JP2000017592A | 2000-01-18 | |||
| JP2011184816A | 2011-09-22 | |||
| JP2011208293A | 2011-10-20 |
Other References:
See also references of EP 3045573A4
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
Patent business corporation creation international patent firm (JP)
Patent business corporation creation international patent firm (JP)
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