| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance an adhesive strength between resin layers of non-adhesive resins by spraying fine powder of another thermoplastic resin to the molten lamination face of a thermoplastic resin shape and laminating another shape comprising an adhesive thermoplastic resin and having a laminated face in a molten state, to the face to which the fine powder is sprayed. SOLUTION: A thermoplastic resin A is extruded continuously into a sheet- like shape 2 from an extruder 11. In addition, the fine powder of a thermoplastic resin B which is non-adhesive with the thermoplastic resin A and shows a lower decomposition initiating temperature than the low limit temperature for molding of the thermoplastic resin A is sprayed from an air nozzle 13b while being extruded from the tip of a kneader 13a during a period in which the lamination face of the shape 2 is still molten. Next, the thermoplastic resin B loaded into another extruder 12 is continuously extruded into a sheet-like shape 4, and the shapes 2, 4 are stacked while their respective lamination faces are still molten. Further, these stacked shapes are pressed between press rolls 15, 15 to make both shapes 2, 4 laminated, and this laminate is cooled between cooling rolls 16, 16.</p> |
