FOAMABLE THERMOPLASTIC RESIN BEAD AND MOLDED FOAM

摘要

PURPOSE:To provide the title beads which are moldable in a short time and give a molded article such as a container resistant to permeation of the contents such as an oil. CONSTITUTION:The surfaces of foamable polystyrene beads are coated with 0.00010.005wt.% ammonium perfluoroalkylphosphate and 0.001-0.05wt.% highly water-absorbing resin particles having a water absorption capacity of 200-1000g/g resin and a diameter of 80mum or lower and comprising a cross-linked poly(sodium acrylate) resin. a starch-acrylic acid copolymer resin, or a vinyl alcohol- acrylic acid copolymer resin.