发明申请
- 专利标题： OPTICAL DISC AND ULTRAVIOLET-CURABLE COMPOSITION FOR OPTICAL DISC
- 专利标题（中）： 用于光盘的光盘和超光固化组合物
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申请号： US12301513申请日： 2007-05-18
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公开(公告)号： US20090207723A1公开(公告)日： 2009-08-20
- 发明人: Daisuke Ito
- 申请人： Daisuke Ito
- 申请人地址： JP Tokyo
- 专利权人： DIC Corporation
- 当前专利权人： DIC Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2006-144042 20060524
- 国际申请： PCT/JP2007/060259 WO 20070518
- 主分类号： G11B7/26
- IPC分类号： G11B7/26 ; C08G59/16
摘要：
An optical disc of the present invention includes at least a light reflection layer and a light transmission layer formed on a substrate, wherein recording and reading are performed by a laser beam through the light transmission layer, the light transmission layer is formed from a cured film of a ultraviolet-curable composition containing an epoxy acrylate resin obtained by reacting a half ester compound (A), which is obtained from a lactone-adduct of a hydroxyalkyl (meth)acrylate (a1) and a dibasic acid anhydride (a2), and an epoxy resin (B), and the film thickness of the light transmission layer is from 50 to 150 μm.
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