Method for producing microfibrillated cellulose and microfibrillated cellulose
US10329359B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 29, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Oct 29, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L1/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a method for producing microfibrillated cellulose, where a suspension comprising cellulose derivative in a liquid phase which comprises an organic solvent is provided. The suspension of cellulose derivative is mechanically treated and microfibrillated cellulose is obtained. At least a part of the liquid phase from the microfibrillated cellulose is separated and microfibrillated cellulose with a dry solids content of >30 weight-% is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.