| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition curable by actinic radiations, used for an optical disk, capable of forming a cured film excellent in resistance to gas corrosion. SOLUTION: The composition contains a compound (A) represented by formula (I), a compound (B) represented by formula (II), and other ethylenically unsaturated compound (C). In the formulas, X1, X2 and X3 are each an acryloyloxy or methacryloyloxy; and R1, R2 and R3 are each a 1-4C alkyl. An optical disk is made by laminating cured films of the composition. |
