| 摘要 |
<p>A method by which various kinds of rubber-reinforced styrene resin compositions of good quality can be recovered in a small amount of energy in a satisfactory yield without posing a problem concerning environmental pollution. The method for recovering a (rubber-reinforced) styrene resin composition is characterized by conducting: a plastication step in which a styrene resin (A) is plasticated; a coagulation step in which a (rubber-reinforced) styrene resin latex (B) is mixed with a coagulant (C) to obtain a creamy substance (D); a mixing step in which the creamy substance (D) is fed to an extruder in which the styrene resin (A) which has undergone the plastication step is present, and they are mixed in the extruder to obtain a mixture (E); a draining step in which water is removed from the mixture (E) and discharged from the extruder; and a volatilization step in which volatile matters are removed from the mixture which has undergone the water removal and discharged from the extruder, the (rubber-reinforced) styrene resin composition being recovered from the extruder.</p> |
