Patent ID: 7935417

Claim:
A melt-kneading method for filling material and elastomer or resin, characterized in that a filling material constituted by a filler, and an elastomer or resin (thermoplastic resin or thermosetting resin), are introduced from a material introduction part at the end of a melt-kneading part having a cylinder with a screw and a heater, thereby melting the elastomer or resin, and the molten elastomer or resin and filling material constituted by a filler are kneaded under the conditions of 1000 to 3000 rpm in the rotation speed of the screw and 1470 to 4500 sec −1 in shear speed to feed a mixture of the molten elastomer or resin and filling material from the rear edge to tip of the screw to be trapped in a space provided at the tip of the screw, after which the trapped mixture is moved from the space to the rear edge of the screw through a hole provided at the center of the screw, with the cycle process performed for a specified period based on recirculation using the screw.