PRODUCTION OF POLYPHENYLENE SULFIDE RESIN

摘要

PURPOSE:To provide a high-toughness polyphenylene sulfide resin of improved brittleness. CONSTITUTION:A polyphenylene sulfide resin is treated at 20 deg.C or above in an inert atmosphere after polymerization to obtain a substantially linear resin having a melt viscosity of 800P or above,-which is cured at 200 deg.C or above in an oxidizing atmosphere to obtain a polyphenylene sulfide resin having a melt viscosity of 5000P or above.