| abstract |
PROBLEM TO BE SOLVED: To cure an optical material that can easily suppress increase in viscosity and hardness even when a silicone resin and a filler are blended, has excellent workability, and has high refractive index, high transparency, and rubber properties. A sex composition is provided. SOLUTION: A liquid addition-curable silicone rubber composition containing (A) a phenyl group-modified organopolysiloxane, (C) an organohydrogensiloxane, and (E) a hydrosilylation reaction catalyst. A cyclic isocyanate compound and (D) a specific phenyl group-containing organosiloxane are used in combination. [Selection figure] None |