EXPANDABLE STYRENE-COMPOUNDED POLYOLEFIN RESIN PARTICLES, METHOD FOR PRODUCING SAME, PRE-EXPANDED PARTICLES, AND EXPANSION MOLDED ARTICLE

摘要

Expandable styrene-compounded polyolefin resin particles comprising styrene-compounded polyolefin resin particles that contain a polyolefin resin and 100-400 parts by mass of styrene resin per 100 parts by mass of polyolefin resin, the expandable styrene-compounded polyolefin resin particles containing butane/pentane in a mass ratio of 80/20-50/50 as a volatile blowing agent.