| 摘要 |
<p>EXPANDED POLYPROPYLENE RESIN BEADS, METHOD OF PRODUCING FOAM MOLDING OF EXPANDED POLYPROPYLENE RESIN BEADS AND FOAM MOLDING OBTAINED BY THE METHOD Expanded beads including cell walls which define a plurality of cells and which comprise a base resin containing a polypropylene resin, each of the beads having a through hole extending therein from one end to the other end. The expanded beads have a maximum diameter D0 (mm), an average cell diameter LCV in a radial direction, an average cell diameter LCH in a circumferential direction and a maximum through hole diameter HD (mm) satisfying the following conditions: LCV/LCH is at least 1.05, HD/D0 is 0.08 to 0.4 and the ratio HD/LCV is 0.1 to 10, whereD0, LCV and LCH are as defined in the specification. The expanded beads may give a foam molding by an in-mold molding method.</p> |
