abstract |
The invention relates to chemical technology, specifically to the preparation of solutions of cellulose in phosphoric acid, suitable for forming cellulose hydrate fibers and films. The invention makes it possible to simplify the process of obtaining these solutions by using instead of high molecular weight cellulose standard industrial pulp or waste of viscose production and treating the cellulose with 5-8 C 82-85% phosphoric acid. 1 tab. |