| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayered optical information recording medium having a large number of signal faces and thin in thickness and to provide a manufacturing method therefor. SOLUTION: The optical information recording medium 18 formed by successively layering and sticking three or more optical information recording boards 15 each having projecting and recessed parts as recording pits on the surface thereof and a reflection layer 14 formed on the surface of the projecting and recessed parts onto a substrate 16 via adhesive layers 17 so that the reflection layers 14 are opposed to the substrate is characterized in that the surfaces of the projecting and recessed parts and at least the layers in the vicinity thereof of all of the optical information recording boards 15 are formed of a coating film of a photo setting layer which consists of a photo-setting composition containing a reactive polymer having <=20 deg.C glass transition temperature and a photopolymerizable functional group. |
