| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive composition excellent in durability and reliability as an adhesive for a laminated optical disk such as a DVD or the like having a translucent reflection film comprising a silicone or a silver compound as a translucent reflection film on one of two disk substrates, and a cured product thereof. SOLUTION: The ultraviolet-curable adhesive composition for laminating optical disks has a weight loss, after left at 80 deg.C for 1 hour in the atmosphere, of at most 2% and contains at least 80 wt.% of ingredients having a weight loss of at most 1%. Furthermore, the ultraviolet-curable adhesive composition for laminating optical disks comprises a (meth)acrylate monomer (A and C), a urethane (meth)acrylate (B), a bisphenol type epoxy (meth)acrylate (F), phosphoric acid (meth)acrylate (E), a hindered amine (G) and a photopolymerization initiator (D). The ultraviolet-curable adhesive composition for laminating optical disks contains at most 15 wt.% of a (meth)acrylate monomer (A) having a molecular weight of 250 or less. |
