Cellulose solutions and products prepared therefrom
US4028132A · kind A · utility
20Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Nov 25, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2301/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Solutions of cellulose in hydrazine are formed by dissolving cellulose therein. The cellulose solutions formed may be utilized for the preparation of fibers, films, foams or other cellulose fabricated articles. Alternatively, the dissolution of cellulose in hydrazine may be employed as a means for the direct extraction of cellulose from lignocellulosic materials without the necessity of pulping operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.