Cellulose solvent compositions and methods of making and employing same
US6827773B2 · kind B2 · utility
22Cited by
2References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F2/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Cellulose solvents, cellulose compositions, and methods of making and using the same. For example, a cellulose composition including cellulose dissolved in the following solvent: an amine-based composition, provided however, the amine-based composition is not ammonia; and a salt selected from the group including a thiocyanate salt, a halide salt, and a nitrate salt. Representative amine-based compositions include hydrazine, hydrazine hydrate, and ethylenediamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.