Verfahren zur Herstellung von Formkörpern aus Polyarylenthioäther.

摘要

The invention provides a process for preparing a shaped product which is heat-resistant and has a high elongation at break, which process comprises (1) curing a substantially linear polyarylene thioether having a melt viscosity of 100 to 1500 Pas to form a resin having a melt viscosity of 500 to 1600 Pas and a non-Newtonian coefficient, n, of 1.5 to 2.1, (3) melt extruding the resin, (4) taking off the extruded resin at a ratio R1 of take-off speed to extrusion speed of 10 to 1,000 and (5) crystallizing the taken-off resin until its crystallization degree becomes not lower than 20 wt%.