| 摘要 |
An optical waveguide-forming material is provided as a photo-curable organopolysiloxane composition comprising (A) a (meth)acryloyloxy group-containing organopolysiloxane resin possessing a siloxane skeleton consisting essentially of organosilsesquioxane units and having a Mw of 1,000-100,000 and (B) a photosensitizer. The material is easy to prepare, inexpensive, and satisfactory in sensitivity and resolution, forms a thick-film coating having heat resistance, moisture resistance and adhesion to a substrate, and allows for easy adjustment of a refractive index. |
