| 摘要 |
PROBLEM TO BE SOLVED: To obtain a photosetting resin composition that is excellent in adhesion to and fast-curability with a resin, a reflection membrane and a semipermeable membrane constituting optical disks and in resistances to heat and moisture in the hardened products and simultaneously shows a high light transmission to a beam for reading out recorded informations, and is useful as an adhesive for optical disks. SOLUTION: This photosetting resin composition contains (A) urethane (meth) acrylate, (B) a phosphoric ester bearing at least one (meth)acryloyl group in one molecule, (C) a (meth)-acrylate bearing at least one (meth)acryloyl group in one molecule other that the components A and B, (D) a compound hearing a mercapto group and a specific organosilyl group in one molecule and (E) a photopolymerization initiator. |
