| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a uniform cellular material, capable of easily controlling a temperature at an extrusion blowing, etc. SOLUTION: This propylene-based resin cellular material is obtained by melting and mixing a mixed powdery material containing a polyfluoroethylene consisting of polytetrafluoroethylene particles having <=10μm particle diameter and organic polymer particles, a polypropylene-based resin and a blowing agent in an extruder, and extruding through dies mounted at the tip of the extruder for blowing under a low pressure. |
