| 摘要 |
PURPOSE:To make it possible to form an optical disc material high in a curing rate by ultraviolet and excellent in mold release, hot-water resistance, heat shock resistance, hardness, etc., by mixing a polycarbonate di(meth)acrylate and/or polyurethane di(meth)acrylate with a specified compound. CONSTITUTION:This optical disc material comprises a polycarbonate di(meth) acrylate (A) and/or polyurethane di(meth)acrylate (B), a compound (C) of formula I (wherein R1 is H or CH3, and R2 is CH3 or C2H5) and a photosensitizer (D) as an optional component. The mixing ratio among said components is preferably such that (A+B) is 5-40wt.%, (C) is 60-95wt.%, and (D) is 0-10wt.% based on the optical disc material (composition). |
