| abstract |
Provided is a method for producing a resin kneaded product, which can increase the amount of material extruded and suppress venting of an unmelted material from an opening while suppressing vent-up at the opening. A method for producing a resin kneaded material in which a material containing an additive (a) and a thermoplastic resin (b) is kneaded using a twin screw extruder, the twin screw extruder comprising a supply port, a discharge port, , An opening existing between the supply port and the discharge port, a kneading part A existing between the supply port and the opening, and a kneading existing between the opening and the discharge port Part B, and the ratio L1 (La / D) of the length La of the kneading part A to the screw diameter D satisfies L1 ≧ 3, and the kneading part A is kneaded without being completely filled, And the manufacturing method of the resin kneaded material which knead | mixes the said material in the kneading part B. FIG. |