GESCHÄUMTES FORMTEIL AUS EINEM POLYMILCHSÄUREHARZ UND HIERAUS ERHALTENES GESCHÄUMTES FORMTEIL

摘要

A polylactic acid resin foamed molding obtained by placing in a mold a cylindrical body having a foamed layer, which is formed by extruding a foamable molten resin composition prepared by kneading together a polylactic acid resin and a physical blowing agent from a die into a low-pressure zone, and molding it, wherein
the molding' s foamed layer constituting the foamed molding has a difference (–³H endo:2°c/min - –³H exo:2°C/min ) between the endothermic calorific value (–³H endo:2°C/min ) and the exothermic calorific value (” H exo:2°C/min ) obtained by heat flux differential scanning calorimetry (heating rate of 2°C/min) of 10 J/g or more and a melt tension at 190°C of 2 cN or more.