Granular cellulose product
US11891499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2019 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Oct 28, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H11/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a granular microfibrillated cellulose product comprising a microfibrillated cellulose originating from agricultural biomass, said microfibrillated cellulose product comprising ≤75 wt % of cellulose, preferably ≤70 wt %, based on dry solids content of said product, wherein said granular microfibrillated cellulose product has a bulk density of 500-1200 kg/m3; a flowability of 5-60 ml/s, measured by a Copley scientific powder flowability tester having a stainless steel cylinder with orifice 16 or funnel with orifice 15; and a water content of at most 60 wt %, based on total microfibrillated cellulose product. The present invention further relates to its manufacture and use in and manufacture of paper and paperboard products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.