| 摘要 |
PURPOSE:To obtain a sponge having any desired uniform sectional shape and foamed state by extruding a material prepared by mixing a chlorosulfonated PE with a vulcanizer, etc., and simultaneously vulcanizing and foaming the extrudate according to a specified operation. CONSTITUTION:A process for producing a sponge by extruding a material prepared by mixing a chlorosulfonated PE with a vulcanizer, a blowing agent, a filler, etc., and vulcanizing and foaming the extruded unvulcanized rubber material, wherein the unvulcanized material is continuously guided to a vulcanization apparatus and simultaneously vulcanized and foamed by gradually raising the temperature between the inlet of the apparatus and its exit. |
