ULTRAVIOLET-CURABLE RESIN COMPOSITION, CURED PRODUCT AND OPTICAL DISK

WIPO Patent Application WO/2012/081216

A1

An ultraviolet-curable resin composition which comprises (A) a triazole derivative represented by formula (1) or (2) [wherein Rm is a hydrogen atom or C1-3 alkyl; R1 is C1-3 alkylene; R2 and R3 are each independently a hydrogen atom, an optionally substituted C1-20 aliphatic group, or phenyl; and X is a nitrogen atom or a sulfur atom], (meth)acrylate compounds (for example, (B) a (meth)acrylate monomer and (C) a urethane (meth)acrylate and/or an epoxy (meth)acrylate), and (D) a photopolymerization initiator. The resin composition is suitable as an ultraviolet-curable resin composition for an optical disk which has a reflecting film, particularly a reflecting film made of either silver or a silver alloy. The resin composition does not cause bleed-out and exhibits excellent curability. Further, an optical disk having a layer made of a cured product of the resin composition exhibits high durability, heat resistance and light resistance.

KIDOBA JUN (JP)
NAITOU MASAHIRO (JP)
KOBAYASHI DAISUKE (JP)
MOTOHASHI HAYATO (JP)
MATSUO YUICHIRO (JP)

PCT/JP2011/006913

June 21, 2012

December 12, 2011

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NIPPON KAYAKU KK (JP)
KIDOBA JUN (JP)
NAITOU MASAHIRO (JP)
KOBAYASHI DAISUKE (JP)
MOTOHASHI HAYATO (JP)
MATSUO YUICHIRO (JP)

G11B7/2542; G11B7/258

JP2007211253A	2007-08-23
JP2002194028A	2002-07-10
JPH08291150A	1996-11-05

SAEKI, NORIO (JP)
Norio Saeki (JP)

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