UV-CURABLE RESIN COMPOSITION FOR USE IN MULTI-LAYER OPTICAL DISC

摘要

Disclosed is a base for use in an optical disc which has excellent mass productivity for substrate formation by a 2P method, particularly favorable release properties from a stamper, and high adhesion strength to a reflective film layer or a dielectric layer even under high-temperature and high-humidity conditions. Specifically disclosed is a UV-curable resin composition for use in a multi-layer optical disc, with which such a base for use in an optical disc can be formed. The UV-curable resin composition for use in a multi-layer optical disc contains (A) a hexa- or higher-functional urethane (meth)acrylate obtained by reacting an organic isocyanate having two or more isocyanate groups per molecule with a tri- or higher-functional (meth)acrylate having a hydroxy group, (B) a tri- or lower-functional (meth)acrylate monomer, and (C) a photopolymerization initiator.