| 摘要 |
A cationically polymerizable composition excellent in curability, long-term storage stability and stability on heating is provided, which contains at least a cationically polymerizable compound, a cationic polymerization initiator and a nitrogen-containing alicyclic compound, and an ink is also provided which comprises the above composition with a colorant. Preferably the cationically polymerizable compound includes at least an alicyclic epoxy compound and an oxetane compound. The alicyclic compound preferably comprises a secondary amine nitrogen atom as a ring constituent atom, and more preferably contains two or more amine nitrogen atoms, particularly secondary amine nitrogen atoms in one ring thereof, such as pyrazolidine, piperazine, homopiperazine and derivatives thereof. Preferably, the alicyclic compound is present in an amount of from 0.001 to 1% by weight of the total amount of the composition or ink.
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