| 摘要 |
PROBLEM TO BE SOLVED: To provide a photopolymerizing composition which has an excellent speed for photosensitivity to active rays, especially to visible rays and brings about no dark reaction; and a photopolymerizing putty composition. SOLUTION: The photopolymerizing composition comprises (a) a titanocene derivative, (b) a compound having a protogenic group, and (c) a compound having at least one ethylenic unsaturated double bond, wherein (b) and (c) have a weight ratio of 0.01:99.99-20:80 and (a) the titanocene derivative has 0.01-10 parts by weight relative to 100 parts by weight of the sum of (b) and (c). The photopolymerizing putty composition comprises further (d) a filler.
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