| 摘要 |
PROBLEM TO BE SOLVED: To produce a composition that is excellent in curability and yields a cured product having no odor and excellent hardness by blending a (meth) acrylate into the composition. SOLUTION: A (meth)acrylate (A) represented by the formula is blended into the composition. In the formula, R1, R2 and R3 are each independently H or methyl; R4 is H or a 9C or less straight chain or branched alkyl; and n is 1-6. Preferably, a compound (B) having a radical-polymerizable unsaturated double bond other than the component A is additionally blended thereinto. As the component B, a monomer and an oligomer are enumerated and as an oligomer, a urethane acrylate, a polyester (meth)acrylate and an epoxy (meth) acrylate are enumerated. In the case where the component B is blended, a blend ratio of the component A : the component B is preferably 5-95 wt.% : 95-5 wt.%. When the composition is cured by ultraviolet ray, a photopolymerization initiator is blended.
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