METHOD FOR CONTINUOUSLY MANUFACTURING HEAT- VULCANIZABLE SILICONE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a method for obtaining a homogenous filler compounded heat-vulcanizable silicone composition having required reinforcing characteristics and a volatile component level by compounding high levels of a filler, a processing fluid and a silicone polymer. SOLUTION: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogenous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus to form the filled heat-vulcanizable silicone composition.