Powder containing carboxymethylated cellulose nanofibers
US12049522B2 · kind B2 · utility
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Key dates
| Filing date | May 28, 2019 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Oct 12, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2301/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A powder that contains carboxymethylated cellulose nanofibers, said carboxymethylated cellulose nanofibers having a degree of carboxymethyl substitution of 0.50 or less and a cellulose type I crystallinity of 60% or more, and has a median diameter of 10.0 μm to 150.0 μm. This powder is suitable usable as an additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.