| 摘要 |
PURPOSE:To prepare a foamed propylene resin molding having a satisfactory water permeability. CONSTITUTION:This resin molding is prepared by packing foamed propylene resin particles having a crystalline structure in which a high-temperature peak appears on the higher-temperature side of the intrinsic peak in the DSC curve and having an S/(6V<2/3>) value of 1 to 3 (wherein V [mm<3>] and S [mm<2>] represent the volume and surface area, respectively), a bulk density of 0.012-0.2g/cm<3> and a high-temperature peak heat quantity of at least 15J/g in a mold by applying an internal pressure exceeding 0.5kgf/cm<2>.G, and heat molding the same. |
