SYNTHETIC RESIN COMPOSITION FOR VACUOUS MOLDING

摘要

The vacuum molding composition is composed of 30-70wt% polyolefin resin and 70-34wt% styrene resin. Additionally 1-10wt% ethylene-propylene copolymer rubber with respect to polyolefin content and 3-15wt% styrene block copolymer rubber with respect to total resin composition are included in the composition. The styrene resin is polystyrene, high-impact polystyrene, styrene-acrylonitrile copolymer resin, acrylonitrile-butadiene-styrene copolymer resin, or their mixture. The styrene block copolymer rubber is styrene-butadiene block copolymer containing 20-60wt% styrene, styrene-isoprene block copolymer, or their hydrated polymer.