Patent ID: 6335382
Filing Date: 2002-01-01
Classification: C08F,C09J

Abstract:
An ultraviolet-curable adhesive for bonding optical disks, which comprises:(A) N-vinylpyrrolidone, (B) a urethane (meth)aerylate oligomer derived from a caprolactone-based polyol, an alicyclic diisocyanate and (meth)acrylic acid, and (C) a photopolymerization initiator containing (C-1) a photopolymerization initiator composed of only carbon atoms, hydrogen atoms and oxygen atoms without containing a nitrogen atom, a sulfur atom and a phosphorus atom and (C-2) a photopolymerization initiator containing a nitrogen atom and/or a sulfur atom in a (C-1)/(C-2) ratio of 70/30 to 100/0 by weight, wherein said ultraviolet-curable adhesive bonds optical disks.