Preparation of solvent and polymer redispersible formulations of dried cellulose nanocrystals (CNC)
US11926714B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | May 15, 2018 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Jun 6, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2467/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The disclosure provides redispersible CNC. The CNC disclosed herein is redispersible in non-polar and polar organic solvents as well as polar and non-polar polymers such as polyethylene or polypropylene. The disclosure surprisingly also provides redispersible CNC bearing improved redispersion in aqueous systems and most particularly in high ionic strength aqueous systems which usually require significant mixing energy to achieve dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.