| abstract |
The invention relates to a non-fibrous polymer solution essentially consisting of 1 to 8 wt.% Para-aramid, at least 50 mole% of the aromatic moieties thereof being unsul~stituted, in a mixture of a) a polar amide solvent selected from N-methyl-2 pyrrolidone, N,NI-dimethylformamide, N,N'-dimethylacetamide, tetramethylurea, and mixtures thereof; b) between 0.7 mole of an alkali or earth alkali chloride per mole amide groups of the para-aramid and 7.5 wt.% of the alkali or earth alkali chloride, and c) water; and wherein at least 50 wt.% of the formed hydrochloric acid has been neutralized to obtain a solution having a dynamic viscosity which is at least a factor three smaller than the dynamic viscosity of the polymer solution without neutralization. The invention further pertains to a process making the same and para-aramid pulp-like fiber, paper and film made from said polymer solution. |