Invention Application
- Patent Title: Optical information medium and production method therefor
- Patent Title (中): 光信息媒介及其制作方法
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Application No.: US10504054Application Date: 2003-05-23
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Publication No.: US20050089665A1Publication Date: 2005-04-28
- Inventor: Naoki Hayashida , Kazushi Tanaka , Rie Ihara
- Applicant: Naoki Hayashida , Kazushi Tanaka , Rie Ihara
- Priority: JP2002-156518 20020529
- International Application: PCT/JP03/06495 WO 20030523
- Main IPC: B32B3/02
- IPC: B32B3/02 ; G11B7/254 ; G11B7/26

Abstract:
The present invention provides an optical information medium that is less susceptible to warp in the disk surface while offering significantly high scratch resistance and abrasion resistance, and a method for producing the optical information medium. An optical information medium (1) comprising a supporting substrate (2) and a film element, the film element disposed on the supporting substrate (2) and composed of one or more layers including at least a recording layer (5) or a reflective layer (3), wherein at least one of the supporting substrate-side surface and the film element-side surface is formed of a hard coat layer (9) of a cured product of a composition comprising (A) inorganic fine particles with an average particle size of 100 nm or less, (B) a reactive silicone, and (C) an active energy ray-curable compound.
Public/Granted literature
- US07153558B2 Optical information medium and production method therefor Public/Granted day:2006-12-26
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