Cellulose fibers, cellulose fiber-containing composition, cellulose fiber dispersion, and method for producing cellulose fibers
US11578456B2 · kind B2 · utility
0Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2018 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Feb 12, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2400/01
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
It is an object of the present invention to provide ultrafine cellulose fibers capable of exhibiting favorable dispersibility even in an organic solvent. The present invention relates to cellulose fibers having a fiber width of 1000 nm or less and having phosphoric acid groups or phosphoric acid group-derived substituents, wherein the content of the phosphoric acid groups or phosphoric acid group-derived substituents is 0.5 mmol/g or more, and the supernatant yield measured by an measurement method (a) is 70% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.