| abstract |
An object of this invention is to provide the resin foam particle which can shape the sound absorption member excellent in the sound absorption performance by a resin foam molding. Moreover, it is an object to provide the laminated body based on resin foamed molded object from which a high sound absorption performance is obtained even if it is a thin material. The resin foamed particle of this invention is resin foamed particle which has a concave-shaped external part containing resin, The ratio ρ 0 / ρ 1 of the density ρ 0 of the said resin and the true density ρ 1 of the said resin foamed particle is 2-20. And ratio ρ 1 / ρ 2 between the true density ρ 1 of the resin foam particles and the bulk density ρ 2 of the resin foam particles is 1.5 to 4.0. |