SOLVENT SYSTEM FOR USE IN POLYMERIZATION IN AROMATIC POLYAMIDES SOLUTION, POLYMERIZATION SYSTEM AND PROCESS FOR PREPARING AROMATIC POLYAMIDE OF POLY-P-PHENYLENE TEREFTALAMIDE

摘要

A process and its product are disclosed whereby poly-p-phenylene terephthalamide is prepared in a polymerization solvent comprising an N-alkyl-substituted amide, preferably N-methyl-2-pyrrolidone, and a quaternary ammonium chloride, preferably methyl-tri-n-butylammonium chloride.