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Title:
ULTRAVIOLET-CURABLE RESIN COMPOSITION FOR USE IN OPTICAL DISKS AND CURED PRODUCTS THEREOF
Document Type and Number:
WIPO Patent Application WO/2011/007571
Kind Code:
A1
Abstract:
An ultraviolet-curable resin composition characterized by comprising (A) a (meth)acrylate having an aliphatic chain, particularly a C10-25 aliphatic chain, either (B) a (meth)acrylate monomer exclusive of the (meth)acrylate (A) and the following (meth)acrylate (C) and/or (C) a urethane (meth)acrylate, and (D) a photopolymerization initiator. The ultraviolet-curable resin composition is suitable for use in the intermediate resin layer of a multilayer optical disk, and ensures high mass productivity in the formation of substrates by the 2P method. Further, the ultraviolet-curable resin composition exhibits excellent peelability from a stamper, and can provide an optical disk base which exhibits a reduced change of warpage when curing or after the resulting multilayer disk is placed under high-temperature and high-humidity conditions.

Inventors:
TSUTSUMI, Hiroki (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
堤裕貴 (〒88 東京都北区志茂3-31-12日本化薬株式会社 機能化学品研究所内 Tokyo, 〒1158588, JP)
KOBAYASHI, Daisuke (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
小林大祐 (〒88 東京都北区志茂3-31-12日本化薬株式会社 機能化学品研究所内 Tokyo, 〒1158588, JP)
MATSUO, Yuichiro (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
松尾雄一朗 (〒88 東京都北区志茂3-31-12日本化薬株式会社 機能化学品研究所内 Tokyo, 〒1158588, JP)
Application Number:
JP2010/004591
Publication Date:
January 20, 2011
Filing Date:
July 15, 2010
Export Citation:
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Assignee:
NIPPONKAYAKU KABUSHIKIKAISHA (11-2, Fujimi 1-chome Chiyoda-k, Tokyo 72, 〒1028172, JP)
日本化薬株式会社 (〒72 東京都千代田区富士見一丁目11番2号 Tokyo, 〒1028172, JP)
TSUTSUMI, Hiroki (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
堤裕貴 (〒88 東京都北区志茂3-31-12日本化薬株式会社 機能化学品研究所内 Tokyo, 〒1158588, JP)
KOBAYASHI, Daisuke (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
小林大祐 (〒88 東京都北区志茂3-31-12日本化薬株式会社 機能化学品研究所内 Tokyo, 〒1158588, JP)
MATSUO, Yuichiro (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
International Classes:
G11B7/254; C08F2/50; C08F220/10; C08F290/06; G11B7/24; G11B7/257
Domestic Patent References:
2006-11-16
2008-10-09
Foreign References:
JPH05140254A1993-06-08
JP2007002144A2007-01-11
JP2006161030A2006-06-22
JP2006241234A2006-09-14
JP2007234189A2007-09-13
Attorney, Agent or Firm:
SAEKI, Norio (4th Floor, Aminosan Kaikan Building 15-8, Nihonbashi 3-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
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