Carboxymethylated cellulose nanofibers
US11591412B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Feb 1, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y40/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Carboxymethylated cellulose nanofibers in which the cellulose type I crystallinity is 60% or higher, the aspect ratio is 350 or lower, and the transmittance of light having a wavelength of 660 nm when the carboxymethylated cellulose nanofibers are made into an aqueous dispersion having a solids fraction of 1% (w/v) is 60% or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.