| 摘要 |
<p>The invention pertains to a process for preparing a spinnable, isotropic solution containing 94-100 wt.% of the constituents cellulose, phosphoric acid and/or its anhydrides, and water, which solution is obtained by dissolving cellulose in a phosphoric acid-containing solvent, with the solvent containing 68-85 wt.% of phosphorus pentoxide, calculated on the overall quantity of water and phosphoric acid in the solvent. The solution can be used to make (hollow) fibres, membranes, non-wovens, films, and for other known applications of cellulose solutions.</p> |
