Methods for preparing thermally stable lignin fractions
US11993624B2 · kind B2 · utility
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35References
19Claims
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Key dates
| Filing date | Oct 29, 2020 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Apr 12, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C11/0007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to fractions of high purity lignin which are thermally stable, and to methods of producing said fractions from lignocellulosic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.