Invention Grant
- Patent Title: Optical disc and ultraviolet-curable composition for optical disc
- Patent Title (中): 用于光盘的光盘和紫外线固化组合物
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Application No.: US12301513Application Date: 2007-05-18
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Publication No.: US08722315B2Publication Date: 2014-05-13
- Inventor: Daisuke Ito
- Applicant: Daisuke Ito
- Applicant Address: JP Tokyo
- Assignee: DIC Corporation
- Current Assignee: DIC Corporation
- Current Assignee Address: JP Tokyo
- Agency: McDermott Will & Emery LLP
- Priority: JP2006-144042 20060524
- International Application: PCT/JP2007/060259 WO 20070518
- International Announcement: WO2007/136003 WO 20071129
- Main IPC: G11B7/254
- IPC: G11B7/254 ; C08F290/06 ; C08G59/20 ; G11B7/257 ; C08G59/62 ; C09D163/10
Abstract:
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.
Public/Granted literature
- US20090207723A1 OPTICAL DISC AND ULTRAVIOLET-CURABLE COMPOSITION FOR OPTICAL DISC Public/Granted day:2009-08-20
Information query
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