Provided are: a curable composition which is able to undergo an adequate
polymerization reaction by considerably suppressing
polymerization inhibition by
oxygen even if used in air, while being capable of ensuring a degree of freedom of design of the composition; and a product. This curable composition contains (A) a monoacrylate compound that is represented by general formula (1), general formula(2) or general formula (3) and at least one initiator selected from the group consisting of (B1) a
photoinitiator, (B2) a thermal initiator and (B3) a
redox initiator. (In general formula (1), general formula (2) and general formula (3), R1 represents -H or -CH3. In general formula (1), R2 represents a substituted or unsubstituted
alkyl group, a substituted or unsubstituted
aryl group, a heterocyclic ring structure-containing group, a group having a plurality of rings or -(CmH2mO)nR5 (wherein m represents an integer of 2-4, n represents an integer of 1-30, and R5 represents -H, a substitutedor unsubstituted
alkyl group or a substituted or unsubstituted
phenyl group). In general formula (2), each of R3 and R4 represents -H, a substituted or unsubstituted
alkyl group, a substituted or unsubstituted
aryl group, a heterocyclic ring structure-containing group, -(CmH2mO)nR5 (wherein m represents an integer of 2-4, n represents an integer of 1-30, and R5 represents -H, a substituted or unsubstituted alkyl group or a substituted or unsubstituted
phenyl group), or a group having a plurality of rings; or alternatively, R3 and R4 may combine with each other and form a cyclic structure or aheterocyclic structure together with carbon atoms to which R3 and R4 are bonded. In general formula (3), each of R' and R'' represents an
organic group or a
hydrogen atom.)