MODIFIED POLYETHER SULFONE RESIN

摘要

PURPOSE:The titled resin, obtained by irradiating polyether sulfone resin with ionizing radiation and having economically improved dimensional stability and heat resistance while retaining original physical properties of the resin. CONSTITUTION:A polyether sulfone resin having <=4.0X10<-5>cm/cm deg.C linear expansion coefficient at ordinary temperature - 200 deg.C, <=3.0% heat shrinkage of a film having 100mu thickness prepared by melt extrusion film forming method at 240 deg.C and >=6kgf/mm<2> tensile strength at ordinary temperature. The above- mentioned resin is obtained by irradiating polyether sulfone resin with ionizing radiation at 1-150Mrad, preferably 2-100Mrad dose.