| 摘要 |
Process for producing expanded polyolefin resin particles with use as a foaming agent in water contained in an aqueous dispersion medium. The process includes dispersing polyolefin resin particles with use as a foaming agent of water contained in an aqueous dispersion medium. The process includes dispersing polyolefin resin particles together with the aqueous dispersion medium into a closed vessel, heating the polyolefin resin particles up to or above a softening temperature of the polyolefin resin particles and pressurizing the polyolefin resin particles, and releasing the polyolefin resin particles into a zone whose pressure is lower than an internal pressure of the closed vessel. The polyolefin resin particles are composed of a polyolefin resin composition including a polyolefin resin, polyethylene glycol homopolymer and a foam nucleating agent.
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