| 摘要 |
PURPOSE:To stabilize the performance of an optical disk by using a resin curable by UV rays compounded with a compsn. having specific structure to form an underlying layer for a recording film layer. CONSTITUTION:The recording layer is formed via the underlying layer on a transparent substrate. The resin compsn. curable by UV rays is held in place between the substrate consisting of glass, etc. and an Ni stamper having grooves and pits. The compd. prepd. by compounding 0.1-5.0pts.wt. photopolymn. initiator with 100pts. mixture composed of 20-80pts.wt. compd. expressed by the formula I and 80-20pts.wt. compd. expressed by the formula II is used for the above-mentioned compsn. After such resin compsn. is cured by the irradiation of the UV rays, the stamper is stripped, then the rugged parts on the stamper are exactly transferred onto the surface of the cured resin compsn. The recording film is deposited by evaporation on the rugged resin surface, by which an optical disk is formed. The optical disk has the characteristics such as high recording sensitivity, high density and high reliability. |
