Process for producing batches of rubber-based composition

摘要

Processes for the batch production of rubber-based compositions capable of being shaped and shaped articles made thereof. They include a step of high intensity mixing cured rubber particles with other selected compounds into a closed mixing chamber provided on a high intensity mixer including a central shaft having mixing blades. Through high speed rotation of the shaft, blade tip speed above about 20 meter/s are obtained to intensively mix and thermokinetically heat the batch of mixable material, whose temperature is continuously monitored. Discharge of the batch from the mixing chamber takes place when the temperature is considered to have reached a reference value ensuring a substantially uniform mix of the rubber material and added compounds, to produce the rubber-based composition.