| abstract |
(A) A carboxylic acid-modified phenoxy resin, (B) polymeric compound, and (C) resin composition for optical materials containing a polymerization initiator, the resin film for optical materials which consists of this resin composition, and formed using these It is an optical waveguide having a core portion and / or a cladding layer. Provided are a resin composition for an optical material that is excellent in heat resistance and transparency and is soluble in an alkaline aqueous solution, a resin film for an optical material comprising the resin composition, and an optical waveguide manufactured using these. |