| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for preventing a mixture of a colored foreign matter of a resin carbide or the like in a molding when interrupted extrusion molding is restarted. SOLUTION: The method for preventing the mixture of the colored foreign matter with the molding by extrusion molding comprises the steps of storing a resin composition in a cylinder 11 of an extruder 10 during a period until the interrupted extrusion molding is restarted, and maintaining a temperature of the composition at a temperature higher by 30 to 100 deg.C than a glass transition temperature of the resin. The method also comprises the step of sealing a lip 19 of a die 18 during a period while the extrusion molding is interrupted.</p> |
