| abstract |
The foamable silicone rubber composition is capable of giving a cured silicone rubber body having a cellular structure and suitable for use as a very reliable fire-resistant joint-sealing member in buildings. In addition to the rather conventional constituents essential in a foamable silicone rubber composition of prior art including (a) a diorganopolysiloxane, (b) a finely divided reinforcing silica filler, (f) a curing agent and (g) a blowing agent, the foamed silicone rubber body obtained by curing the inventive composition is imparted with very reliable fire resistance by virtue of the synergistic effect of the characteristic ingredients including (c) a ferrite powder, (d) a finely divided inorganic material or, in particular, mica flakes, and (e) a platinum compound, in combination, each in a specified amount. |