| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of kneading a rubber composition and kneading equipment which can reduce variation of properties of a rubber composition by making temperature conditions on kneading constant. <P>SOLUTION: The kneading method uses kneading equipment equipped with a pair of rotors 3 and 3 in a kneading section 2 of a mixer 1, has a gas introduction passage 11 for introducing a high-temperature gas into the kneading section 2 and carries out kneading of a rubber composition repetitively and continuously in two or more divided batches. The kneading section 2 is preheated to a temperature equal to the kneading-starting temperature on continuous kneading by introducing a high-temperature gas into the kneading section 2 on first-time kneading after a prolonged stopping, and kneading of the rubber composition is started from the preheated state. <P>COPYRIGHT: (C)2011,JPO&INPIT |
