| 摘要 |
A curable resin composition for optical waveguide comprising, as essential components, a copolymer (A) of a radical-polymerizable compound (a) having an acid anhydrous group and/or an acidic group carrying a blocked acid group, and a radical-polymerizable unsaturated group in the molecule, with other radical-polymerizable compound (b), a polymerizable unsaturated compound (B), and a polymerization initiator (C); a curable dry film for optical waveguide composed of this composition; and an optical waveguide in which at least one of a lower clad layer 13 , a core part 15 and a upper clad layer 17 is formed using the same.
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