EXTRUSION OF HYDRATED POLYACRYLONITRILE UNDER AUTOGENOUS PRESSURE

摘要

Compositions which are substantially single phase partial or complete hydrates of an acrylonitrile polymer can be extruded into filaments within a certain elevated temperature range. Extrusion is facilitated, and properties of the article extruded are enhanced, by the addition to the extrusion mixture of a small amount of a compatible solvent for the polymer.