| 摘要 |
PCT No. PCT/GB83/00151 Sec. 371 Date Feb. 8, 1984 Sec. 102(e) Date Feb. 8, 1984 PCT Filed Jun. 7, 1983 PCT Pub. No. WO83/04415 PCT Pub. Date Dec. 22, 1983.Shaped articles, such as fibres and films, are obtained from a polymer solution comprising cellulose, a solvent for the cellulose comprising a cyclic tertiary amine N-oxide and water, and a stabilizer for the solution selected from the group consisting of sodium hexametaphosphate, disodium hydrogen phosphate, potassium dihydrogen phosphate, hydroxy-ethylidene diphosphonic acid, aminoethyl diphosphonic acid, and complexes of such compounds with occluded metal ions present in the polymer solution. The stabilizer is present in an amount sufficient to stabilize the solution against thermal degradation which causes loss of solvent and discoloration of solvent and dissolved cellulose. |
