| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing condensation polymer pellets of a good shape which can easily set cooling conditions for the industrial production of the pellets and is good in production efficiency. SOLUTION: In the method, the strands of the molten polymer are extruded from a die head having at least two small holes, brought into contact with flowing water on a slanted cooling stage, brought down along the stage to be cooled, and cut. In the vicinity of a point on the stage where the strands are brought into contact with the flowing water, water showering is carried out. COPYRIGHT: (C)2005,JPO&NCIPI |
