| 摘要 |
The present invention relates to a process for producing a polyester sheet comprising using a vent-type twin-screw extruder, using a polyester resin having not lower than 1 X 10<-7> OMEGA cm of a specific resistance when melted as starting material, supplying said polyester and a metal salt of an aliphatic monocarboxylic acid or dicarboxylic acid in amount of 0.5 to 1,000 ppm, calculated as metallic atom, based on the polyester resin, and closely adhering the molten polyester sheet extruded onto a rotating chilling drum from the extruder to the surface of said chilling drum by use of an electrostatic pinning technique. <IMAGE> |
