| 摘要 |
<p>PURPOSE:To provide a method for reactional treatment in which the pressure in a hydrolytic region is stabilized to stabilize hydrolytic conditions and thereby provide an advantage in obtaining a high-quality regenerated resin composition. CONSTITUTION:This method for reactional treatment is provided by arranging a feed port 2, a melting region 4, a hydrolytic region 5, a deaerating region 6, a kneading region 7 and a discharge port 3 in series in a cylinder 1, feeding water from water feed parts (1k), (1m) and (1n) to a passage (1a), connecting the first conduit passage (1r) to the pyrolytic region (5A), the second conduit passage (1s) to a hydrolytic region (5B) and the third conduit passage (1t) to a hydrolytic region (5C), equipping a pressure regulating means 60 with a piston (60f) and a spring (60k), making the pressure in the hydrolytic region 5 act through the conduit passages (1r), (1s) and (1t) on a pressure chamber (60d) of the pressure regulating means 60, moving the piston (60f) in the direction of an arrow (M2), relaxing an overpressure in the hydrolytic region 5 when the receiving pressure of the piston (60f) overcomes the spring (60k) and thereby reducing the pulsation of the pressure in the hydrolytic region 5.</p> |
