EXPANDABLE POLYSTYRENE-BASED RESIN PARTICLE AND METHOD FOR PRODUCING THE SAME, POLYSTYRENE-BASED RESIN PRE-EXPANDED PARTICLE, AND POLYSTYRENE-BASED RESIN EXPANSION-MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide expandable polystyrene-based resin particles which, even when a polystyrene-based resin containing an odorous component is used, enable an expansion-molded article free from odor annoyance during use to be produced, and to provide a method for producing the particles.;SOLUTION: The expandable polystyrene-based resin particles are obtained by melting a polystyrene-based resin by heating in a resin feed unit, mixing with a blowing agent, extruding into water from small openings of a die, and cutting. The expandable polystyrene-based resin particles are characterized in that, based on 100 pts.mass of the polystyrene-based resin, 0.05-5.0 pts.mass of silica is contained as a deodorizer in a dispersed state in the resin particles.;COPYRIGHT: (C)2012,JPO&INPIT