| 摘要 |
PURPOSE:To obtain a product having therein particles uniformly dispersed in a high degree and having a high affinity by preliminarily mixing a specific amount of particles of a specific inorganic or organic substance with a molten polymer in an extruder and then allowing the preliminary mixture thus obtained to pass through a specific porous member to disperse the particles. CONSTITUTION:The amount of 0.005 to 4 wt.% (to the amount of a polymer) of the particles of an inorganic or organic substance, in which the average size of the particles is 0.01 to 5mum and the angle of their contact with water is 10 deg., or more, and a molten polymer are preliminarily mixed together by using a single-screw extruder and a multi-screw extruder. The particles preliminarily mixed with the molten polymer are allowed to pass through an inorganic porous member having continuous pores whose average diameter is not less than 10 times and not more than 70.X<1/2> times of the average size (X) of the particles, and then are extruded. |
