| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material for a light transmission layer of an optical information medium which is less warped even when left in a low temperature environment, and a curable composition to be used in the material, and the optical information medium using the material for the light transmission layer. <P>SOLUTION: The material for the light transmission layer of the optical information medium is provided which has an information recording layer on a supporting substrate and the light transmission layer on the information recording layer, and which is used so that at least one of recording light and reproducing light is made incident thereon through the light transmission layer. There are provided the material for the light transmission layer having 10% or more of elongation at break at -20°C, the curable composition for the light transmission layer which is used as a material for the light transmission layer, and the optical information medium obtained from the material for the light transmission layer. <P>COPYRIGHT: (C)2010,JPO&INPIT |
