ULTRAVIOLET CURABLE RESIN COMPOSITION AND CURED PRODUCT THEREOF

摘要

Disclosed is an optical disc having a cured product layer of an ultraviolet curable resin composition which contains a dicyclopentenyloxyethyl acrylate (A), a urethane (meth)acrylate (B) and/or an epoxy(meth)acrylate (C), and a photopolymerization initiator (D). Also disclosed are a resin composition for the cured product layer, and a cured product of such a resin composition. The optical disc is reduced in warping after curing, while being excellent in transparency and durability. Consequently, the optical disc is suitable as a next-generation high-density optical disc wherein recording and/or reproduction is performed by using a blue laser. The resin composition for obtaining the cured product layer is reduced in change over time and viscosity change at the time of recycling. Consequently, the resin composition is suitable as a coating material for optical discs, and enables efficient production of optical discs.