| 摘要 |
<p>A volume-reducing agent for polystyrene foams which influences neither the human body nor the environment and is convenient. The volume-reducing agent is obtained by adding to a solvent for polystyrene foams an insolubilizing agent in which polystyrene foams are insoluble but which is soluble in the solvent for polystyrene foams. Upon contact with the volume-reducing agent, a polystyrene foam becomes a curdy matter floating thereon without dissolving in the volume-reducing agent. By cleansing the curdy matter, a raw polystyrene material can be obtained from which a polystyrene foam can be regenerated.</p> |
