| abstract |
A transparent member forming composition that provides a cured product having a high refractive index and a high glass transition temperature, and a transparent member comprising the cured product. A transparent member forming composition comprising a vinyl group-containing compound represented by formula (1) and a thiol group-containing compound having at least two thiol groups in one molecule. (W 1 and W 2 are groups represented by formula (2); groups represented by formula (4); hydroxyl groups; or (meth) acryloyloxy groups; ring Y 1 and ring Y 2 are aromatic hydrocarbon rings R is a single bond or a specific divalent group; R 3a and R 3b are a cyano group, a halogen atom, or a monovalent hydrocarbon group; n1 and n2 are integers of 0 to 4) [Selection figure] None |