Porous cellulose body and method for producing same
US9328211B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 15, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | May 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249965
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A porous body that contains cellulose nanofibers having very thin fiber diameters and high hydrophilicity, and has a large specific surface area, and to provide a method of producing the porous body simply with low cost. A method of producing a porous cellulose comprises a process of lyophilizing a mixed liquid containing cellulose nanofibers and a dispersion medium, wherein the dispersion medium is a mixed dispersion medium of water and an organic solvent dissolving in water, a concentration of the organic solvent in the mixed dispersion medium is 2 to 40 mass %, and a solid content concentration of the cellulose nanofibers in the mixed liquid is 0.001 to 5 mass %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.