ACOUSTICAL INSULATING FOAM FROM COMPATIBILIZED BLENDS OF VINYL AROMATIC POLYMERS AND ALPHA-OLEFIN POLYMERS

摘要

Foams made from a ternary blend of an alkenyl aromatic polymer such as polystyrene, an alpha -olefin polymer such as polyethylene, and a compatibilizer, are used as acoustical insulation in building constructions. These foams exhibit an unusual combination of low creep and low dynamic stiffness. They are especially useful in floating floor installations.