Patent ID: 8415417

Claim:
A non-fibrous polymer solution, the polymer solution comprising: 1 to 6 wt. % poly(paraphenylene terephthalamide) (PPTA), obtained from polymerizing para-phenylenediamine and terephthaloyl dichloride under a formation of hydrochloric acid, a polar amide solvent selected from the group consisting of N-methyl-2-pyrrolidone (NMP), N,N′-dimethylformamide, N,N′-dimethylacetamide (DMAc), tetramethylurea, and mixtures thereof; an alkali or an alkaline earth metal chloride selected from the group consisting of lithium chloride (LiCl) and calcium chloride (CaCl 2 ), in an amount of from 0.7 mole per mole of amide groups of the PPTA to 7.5 wt. % of the polymer solution; and water; wherein: at least 50 wt. % of the formed hydrochloric acid is neutralized, the polymer solution is anisotropic, the polymer solution has a relative viscosity (η rel )>2.2 and a dynamic viscosity which is at least a factor of three smaller than a dynamic viscosity of the polymer solution without neutralization, and the polymer solution does not comprise hexamethylphosphoramide (HMPA).