| abstract |
Kind Code: A1 A mold for a tire having high dimensional accuracy, high shape stability, high reinforcement and high workability as compared with a conventional liquid polysulfide rubber, and a mirror-like smooth surface can be obtained. A rubber compounding composition is provided. (A) An organopolysiloxane having two or more alkenyl groups bonded to a silicon atom in one molecule as a base polymer; and (B) a hydrogen atom bonded to a silicon atom as an addition reaction crosslinking agent. An organohydrogenpolysiloxane having two or more in the molecule, (C) a curing catalyst, (D) silica, (E) a metal powder, (F) a softener, and (G) an inorganic powder. Is blended. [Selection diagram] None |