| 摘要 |
PURPOSE:To obtain an extremely high-quality recording carrier which is free from the effects of optical strains or foreign matters by obtaining an ultraviolet- ray hardening resin layer by hardening a resin composition containing 2,2-bis(4- acryloyl oxypolyethylene oxyphenyl) propane of a specific structure. CONSTITUTION:A resin base material 1 uses a sheet made of polymethacrylic acid ester resin which is transparent and even optically or thermosetting resin which can obtain methacrylic acid ester larger than double-functional group as a single component. An ultraviolet hardening resin composition contains 100pts.wt. 2,2-bis(4-acryloyl oxydiethylene oxyphenyl) propane and 2pts.wt. benzyldimethyl ketal. A recording thin film layer 5 uses a low oxide which absorbs light, e.g., lower oxide of tellurium TeOx (0<X<2.0). In a manufacturing process where a guide groove is formed by the ultraviolet ray hardening resin composition, the excellent workability is secured with virtually no optical strain since said hardening resin can be easily removed from a stamper. |
