| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition capable of readily providing an optical disk having a film excellent in resistance against impact from the outside, by selecting two or more kinds of ultraviolet-curable compounds so that cured film has a specific modulus range and the composition becomes liquid SOLUTION: This composition contains (A) an ultraviolet curing compound and (B) a photopolymerization initiator and is prepared so that modulus of cured film at 30 deg.C become <=500MPa, preferably 1-100MPa and so that the composition becomes liquid by combination of two or more kinds of component A. In the preparation, a monofunctional (meth)acrylate or a polyfunctional (meth)acrylate is preferably used as polymerizable monomer component of the component A and the polymerizable monomer is more preferably jointly used with epoxy (meth)acrylate or urethane (meth)acrylate. Thereby, it is expected to produce DVD-9 disk having high reliability. |
