申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:US10647819B2
公开(公告)日:2020-05-12
According to the present invention, it is possible to provide a photocurable composition which comprises a cyclic compound (a) represented by formula (1), an episulfide compound (b), and a photopolymerization initiator (c). In a preferred embodiment, the proportion of the cyclic compound (a) in the photocurable composition is 5-80 mass %, the proportion of the episulfide compound (b) is 20-95 mass %, and the proportion of the photopolymerization initiator (c) is 0.1-10 parts by mass per 100 parts by mass of the sum of the cyclic compound (a) and the episulfide compound (b). In the formula, C represents a carbon atom, X represents S, Se, or Te, and a to f are integers of 0-3, provided that 8≥(a+c+e)≥1, 8≥(b+d+f)≥2, and (b+d+f)≥(a+c+e).
根据本发明,可以提供一种光固化组合物,该组合物包括由式(1)表示的环状化合物 (a)、环硫化合物(b)和光聚合引发剂(c)。在一个优选的实施方案中,环状化合物(a)在光固化组合物中的比例为 5-80 质量%,环硫化 合物(b)的比例为 20-95 质量%,光聚合引发剂(c)的比例为环状化合物(a)和环硫化 合物(b)之和每 100 质量份中占 0.1-10 质量份。式中,C 代表碳原子,X 代表 S、Se 或 Te,a 至 f 为 0-3 的整数,条件是 8≥(a+c+e)≥1,8≥(b+d+f)≥2,且 (b+d+f)≥(a+c+e)。