This invention, being the free radical hardenable composition of one component shape or multi component shapes, regards the composition which at least includes with the free radical polymerization possible monomer formula (i) of 1 kinds and at least the free radical initiator of 1 kinds. Can these compositions, use for ideal especially, the adhesive, as a sealing material, or a coating. As for these compositions, and the odor is very little with either before and after the hardening, after the hardening to possess the mechanical quality which is superior in addition to satisfactory adhesiveness and the satisfactory adhesiveness for the especially plastic, therefore it is ideal in use at the interior.
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