Title:
光記録媒体製造用シートおよび光記録媒体
Document Type and Number:
Japanese Patent JP4341968
Kind Code:
B2
Abstract:
To provide a sheet for manufacturing an optical recording medium capable of suppressing reduction of reflectance of a reflection film and to provide an optical recording medium wherein reflectance of the reflection film is prevented from lowering.
The sheet 1 for manufacturing an optical disk provided with an adhesive layer 11 having ≤6.5×10-3g m/m224h water vapor permeation coefficient after being curing and a protective sheet 12 is laminated on an information recording layer 3 (a laminated body of a reflection film 31, a dielectric film 32, a phase change film 33 and a dielectric film 32') formed on an optical disk substrate 2. The adhesive layer 11 consists essentially of an energy ray curable material containing 30 to 90 mass% (meth)acrylate (co)polymer and 10 to 70 mass% energy ray curable compound having an alicyclic structure in its molecule.
COPYRIGHT: (C)2006,JPO&NCIPI
Inventors:
Masahito Nakabayashi
Takeshi Miyata
Kubota Shin
Masahiko Sekiya
Application Number:
JP2004382029A
Publication Date:
October 14, 2009
Filing Date:
December 28, 2004
Assignee:
LINTEC CORPORATION
International Classes:
G11B7/24; G11B7/254; G11B7/257; G11B7/26
Domestic Patent References:
| JP4019839A | | | | |
| JP2068746A | | | | |
| JP2003123332A | | | | |
| JP2037539A | | | | |
| JP2003187497A | | | | |
| JP2005182964A | | | | |
Attorney, Agent or Firm:
Yuji Hayakawa
Suzuki Keiyasu
