Foamable chlorinated vinyl chloride resin particles, their foamed particles, and chlorinated vinyl chloride resin foam molded articles using them.

摘要

PROBLEM TO BE SOLVED: To provide a foamable chlorinated vinyl chloride resin particle capable of giving a chlorinated vinyl chloride resin foam molded product having flame retardancy and a high foaming ratio. SOLUTION: The solution contains (A) a chlorinated vinyl chloride resin, (B) a copolymer having an aromatic vinyl monomer and an unsaturated nitrile monomer as structural units, and (C) a foaming agent. Effervescent chlorinated vinyl chloride resin particles. The foamed molded product formed by using the foamable chlorinated vinyl chloride resin particles has a high foaming ratio and a high closed cell ratio, and is excellent in flame retardancy. Therefore, it is suitable for various applications such as building heat insulating materials, ceiling materials, metal sandwich panel core materials, food container boxes, cold storage boxes, cushioning materials, agricultural and fishery boxes, bathroom heat insulating materials and hot water storage tank heat insulating materials. is there. [Selection diagram] None