EXPANDABLE POLYSTYRENE RESIN PARTICLES FOR LOW-RATIO EXPANSION MOLDING AND METHOD FOR PRODUCING SAME, LOW-RATIO EXPANDED PARTICLES, LOW-RATIO EXPANDED MOLDED ARTICLE, CUSHION MATERIAL FOR HUME PIPE, AND METHOD FOR PRODUCING LOW-RATIO EXPANDED MOLDED ARTICLE AND CUSHION MATERIAL FOR HUME PIPE

摘要

the blowing agent-containing polystyrene-based resin it is made and having an average particle size of 300 [micro] m ~ based on 100 parts by weight of the expandable polystyrene resin particles in the range of 2500 , 0.02 ~ 2.5 parts by weight of a higher fatty acid amide, a higher fatty acid triglyceride in combination with 0.02 to 2.5 parts by weight which comprises coating the surface of the particles that the isostery shaping the expandable polystyrene resin particles, the foam was made and distinctive low distinctive low-expanded beads, the particles are distinctive low-mold the expanded beads obtained by expansion-molded article provides a distinctive low foaming. According to the present invention, the in-mold foam molding to a high fusion rate between expanded particles of the resulting expanded molded article, is excellent in height between the expanded particles, bending strength or compression strength is high distinctive low expanded molded article the proper low isostery a mold for producing foamed polystyrene it is possible to provide a resin particle.