Methods for removing hemicellulose
US8980050B2 · kind B2 · utility
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48References
28Claims
0Family size
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Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises an amine oxide and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.