| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition capable of forming a cured product excellent in photocurable properties and mechanical characteristics, and useful as a resin for three-dimensional and optical forming, or the like by including a cationically polymerizable organic compound, cationic photopolymerization initiator and the like. SOLUTION: This composition comprises (A) a cationically polymerizable organic compound such as neopentyl glycol diglycidyl ether, (B) a cationic photopolymerization initiator such as bis[4-(di(4-(2-hydroxyethyl)phenyl)sulfonio) phenyl] sulfide bishexafluoroantimonate, and (C) a photosensitizer for cationic photopolymerization selected from carbazole compounds of formulas I and II (R is fluorine or the like; k and k' are each 0-4; m and m' are each 0-2; Y and Y' are each a 1-18C monovalent organic group), (e.g. 9,9'-diethyl-3,3'- dicarbazole), in the proportion of 80-99.0 wt.% component A, 0.3-10 wt.% component B and 0.05-10 wt.% component C.
|
