| 摘要 |
<p>An optical disk substrate which comprises at least one styrenic resin (X) selected from the group consisting of (A) a specific styrene-acrylonitrile copolymer resin, (B) a specific styrene-(meth)acrylate ester copolymer and (C) a specific rubber-modified styrenic resin composition. The optical disk substrate is excellent in strength, formability, releasability and transferability, and also can be produced at a reduced cost with ease.</p> |
