| 摘要 |
PURPOSE:To provide an optical disk substrate which enables recording, reproducing and erasing by light and more specifically the UV curing type resin compsn. for optical disks constituted by forming a UV curing type resin having a specific compsn. CONSTITUTION:Urethane acrylate, a monofunctional vinyl compd. having the glass transition temp. at the time of independent polymn. within 150 to 180 deg.C range, multifunctional acrylate, and a photopolymn. initiator are incorporated into the which does not generate wrinkles and cracks in a high-temp. and high- humidity test, does not attack a recording film, does not generate clouding and yellowing and has the good adhesion to a base is obtd. |
