| 摘要 |
PURPOSE: To continuously and stably perform the uniform kneading of a polymeric substance and a liquid in large emitting quantities by using a continuous kneader having self-cleaning action in the kneading of the polymeric substance and the liquid and bringing the interior of the kneader in a liquid supply part and a kneading part to a starvation state. CONSTITUTION: In a kneader kneading a natural polymeric substance such as cellulose, natural rubber or protein, a synthetic polymeric substance such as a thermoplastic resin or a thermosetting resin and a liquid such as mineral oil, an org. solvent or water, at least one liquid supply part 22 is provided on the downstream side of a polymeric substance supply part 21 and the interior of the kneader in the polymeric substance supply part 21 and the liquid supply part 22 is set to a starvation state (a state wherein there is a space where the polymeric substance or the mixture of the polymeric substance and the liquid is not present in the space between a cylinder and a screw). The interior of the kneader performing the kneading of the liquid and the polymeric substance is also set to a starvation state. By this constitution, even if there is no filling state of the polymeric substance on the upstream side of the liquid supply part, the kneaded mixture can be transported to a die 23 without generating the back flow of a fluid. |
