Cellulose nanofiber, production method of same and cellulose nanofiber dispersion
US8992728B2 · kind B2 · utility
21Cited by
6References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 26, 2008 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Apr 25, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/298
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The cellulose nanofiber production method of the present invention comprises an oxidation treatment step for oxidizing native cellulose in a neutral or acidic reaction solution containing an N-oxyl compound and an oxidizing agent that oxidizes aldehyde groups, and a dispersion step for dispersing the native cellulose in a medium following the oxidation treatment step. According to the production method of the present invention, a cellulose nanofiber is provided that has long fibers and demonstrates high strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.