| abstract |
PROBLEM TO BE SOLVED: To provide a method with an increased throughput for producing a thermosetting silicone composition which is sufficiently dispersed from a filler, an additive and a polymer. SOLUTION: A filler and a high-viscosity silicone polymer are continuously mixed in a first intermeshing type co-rotating twin-screw extruder, and a mixture of the filler and the silicone polymer from the first extruder is reciprocally mixed. Continuous compounding with a second extruder consisting of a screw extruder, continuous compounding of high levels of fumed silica, processing fluid and high molecular weight silicone polymer, homogeneous silica filler compound thermosetting Obtain a silicone composition. |