| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical information recording medium which is a Blu-ray mode optical information recording medium and is excellent in recording characteristics, and further capable of suppressing deterioration of information reproduction with age. <P>SOLUTION: The optical information recording medium has: a light reflection layer composed of a silver alloy including silver as a main component; a recording layer including an organic dye; a barrier layer formed with a sputtering method using a sputtering target having density of 5.8 to 12 g/cm<SP>3</SP>; and a cover layer including a cured film prepared by curing an ultraviolet curing composition including a urethane(meth)acrylate-based oligomer on a position in contact with the barrier layer, in this order on a surface of a substrate having guide grooves on the surface. <P>COPYRIGHT: (C)2010,JPO&INPIT |
