Method for manufacturing intermediate product for conversion into microfibrillated cellulose
US11479915B2 · kind B2 · utility
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8References
9Claims
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Key dates
| Filing date | Jul 3, 2017 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Apr 1, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H13/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method for manufacturing an intermediate product that can be stored and transported and efficiently converted into microfibrillated cellulose with limited energy input at the time of conversion. More specifically, the invention involves the use of dewatered carboxymethylcellulose or carboxylated cellulose fiber having a low degree of substitution and a high amount of additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.