COMPOSITE RESIN EXPANDED PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a composite resin expanded particle excellent in mechanical physical property and capable of exhibiting fire resistance and heat resistance.SOLUTION: A composite resin expanded particle contains a composite resin containing an olefin resin (A) and a styrene resin (B) at a prescribed ratio as a base material resin and a bromine based fire retardant. The styrene resin (B) contains a prescribed (meth)acrylic ester component (b1) as a copolymer component. A glass transformation temperature (Tg) of the styrene resin (B) is 100 to 104°C. A 50% decomposition temperature of the bromine based fire retardant is 260 to 340°C.