| abstract |
(A) It comprises units selected from M, Q, D and T units, the total amount of M and Q units is 80 mol% or more, and the molar ratio of M units to Q units is 0.5 to 1. Silicone resin containing alkenyl group in the range of 0.5 (B) Organopolysiloxane containing alkenyl group (C) Organohydrogenpolysiloxane containing hydrogen atom bonded to silicon atom (D) Hydrosilylation reaction catalyst ( E) A hydrosilylation-curable liquid silicone rubber composition for optical waveguide plates containing silica as an essential component. [Effect] The cured film of the composition of the present invention is highly transparent but has an appropriate light diffusibility, and is therefore optimal as an optical waveguide plate for a backlight device for keypad illumination of a cellular phone. Since the silica as the light diffusing agent of the present invention also has a reinforcing effect of the silicone rubber composition, it does not impair strength and flexibility. [Selection figure] None |