| 摘要 |
A cationic photocatalyst composition and a photocurable composition utilizing cationic polymerization are provided which can present sufficient open time and adhesion.The cationic photocatalyst composition contains a photosensitive onium salt and a compound represented by the following formula (1). The photocurable composition contains the cationic photocatalyst composition and an epoxy compound having at least one epoxy group per molecule.Formula (1) [Compound B](wherein R and R' are suitably selected from hydrogen, halogen, saturated hydrocarbon groups, unsaturated hydrocarbon groups, substituting groups comprising any suitable combination of elements such as carbon, hydrogen, oxygen, nitrogen and sulfur; and l and n each is an integer of 2 or larger).
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