EXTRUDED PROPYLENE RESIN FOAM

摘要

An extruded propylene resin foam which can have a reduced average cell diameter while retaining a heightened expansion ratio and which hence has excellent heat-insulating performance. The extruded propylene resin foam is one obtained by extrusion-foaming a propylene resin and has an expansion ratio of 10 or higher and an average cell diameter smaller than 400 mum. Due to this constitution, the extruded foam can have many cell walls therein. The extruded propylene resin foam can hence efficiently block external radiant heat and has excellent heat-insulating performance.