| abstract |
A composition comprising both a polymer which contains triazine -ring-containing repeating units represented by formula (17) and a crosslinking agent which consists of either a poly- functional epoxy compound or a polyfunctional (meth)acrylic compound can be photo-cured even without the addition of an initiator to yield a cured film having a high refractive index and high heat resistance. Thus, a photocurable film-forming composition that comprises a triazine-ring -containing polymer, which can achieve, even without the addition of a metal oxide by the polymer alone, high heat resistance, high transparency, a high refractive index, high solubility and low volume shrinkage, and that is curable even without the addition of an acid generator can be provided. |