SILICONE RUBBER COMPOSITION, SILICON RUBBER MOLDED ARTICLE AND MANUFACTURING METHOD OF SILICONE RUBBER MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a silicone rubber composition which can be uniformly mixed for a short time and gives a homogeneous silicone rubber molded article after cured. SOLUTION: The silicone rubber composition is obtained by admixing (A) a silicone rubber base compound which comprises (a) an organopolysiloxane raw rubber having a Williams plasticity at 25 deg.C of at least 50 and bearing at least two alkenyl groups bonded to silicon in one molecule, (b) an inorganic filler and (c) a platinum-based catalyst (a catalytic amount) and has a Williams plasticity at 25 deg.C within the range of 100-1,000 with (B) a silicone rubber base compound which comprises (a) an organopolysiloxane raw rubber having a Williams plasticity of at least 50 and bearing at least two alkenyl groups bonded to silicon in one molecule, (b) an inorganic filler and (d) an organohydrogen polysiloxane bearing at least two hydrogen atoms bonded to silicon in one molecule and has a Williams plasticity at 25 deg.C within the range of 100-1,000.