| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a modified polypropylene-based expansion molding body that can improve faults in both an expansion molding body of a polystyrene-based resin and an expansion molding body of a polypropylene-based resin, and is excellent in mechanical characteristics, heat resistance, and chemical resistance or the like, to provide a preliminary foamed particle of the modified polypropylene-based resin of a high magnification that is excellent in moldability, in which the fusion between foamed particles can be achieved by the steam of a low temperature, and that can give the same, and to provide a modified polypropylene-based resin particle that can give the same. <P>SOLUTION: The modified polypropylene-based resin particle comprises modifying 100 pts.wt. of a polypropylene-based resin by a polymerization resin that originates in 40-100 pts.wt. of an aromatic vinyl monomer including 0.1-1 wt.% of a polyfunctional monomer, and is characterized in that the gel fraction shows 10-40 wt.% originating in the crosslinking of the polymerization resin that originates in the aromatic vinyl monomer. <P>COPYRIGHT: (C)2013,JPO&INPIT |
