ADHESIVE COMPOSITION AND OPTICAL DISC PREPARED THEREWITH

摘要

An adhesive composition (ultraviolet hardenable resin composition) comprising a bisphenol type epoxy (meth)acrylate (A), a di(meth)acrylate having cycloether structure (B) and a photopolymerization initiator (C); and a bonded optical disc wherein the bonding is effected by a hardening product of the composition. The bonded optical disc can be obtained by bonding optical disc substrates having a semitransparent reflection film or total reflection film consisting of silver or a silver alloy, etc. with the use of the composition. Thus, there can be realized high adhesion strength between reflection film and adhesive hardening product and between polycarbonate substrate and adhesive hardening product as well as high durability comparable to that of the conventional optical disc having a semitransparent reflection film of gold.