POLYSTYRENE-BASED RESIN FOAMED MOLDING

摘要

PROBLEM TO BE SOLVED: To prevent electrification while reducing the amount of use of a polymer type antistatic agent in a polystyrene-based resin foamed molding formed of a polystyrene-based resin composition containingg a base resin composed of a polystyrene-based resin and the polymer type antistatic agent. SOLUTION: The polystyrene-based resin foamed molding is formed of the polystyrene-based resin composition containing the base resin composed of the polystyrene-based resin and the polymer type antistatic agent. The polystyrene-based resin composition further contains at least one kind among a polyolefin resin, an acrylic resin and a poly(lactic acid)-based resin which are incompatible with the base resin. A dispersion phase which is formed by dispersing the incompatible resin in a matrix phase containing the base resin is formed at least on a molding surface. Moreover the polymer type antistatic agent which is incompatible with both a dispersion phase-forming resin and the base resin is used and the dispersion phase is formed of core shell-shaped particles each of which has the polymer type antistatic agent as an outer shell. COPYRIGHT: (C)2011,JPO&INPIT