To provide an active energy ray hardening composite capable of forming a film excellent in low water absorption and transparency, low in hardening shrinkage and appropriate in hardening when polymerized, and to provide the optical disk obtained using this.
The active energy ray hardened composite for the optical disk contains a compound (A) at least one of polybutadiene glycoldi(meta)acrylate and polyisoprene glycoldi(meta)acrylate and the compound (B) having at least three pieces of (meta)acryloyl groups in a molecule. Moreover, the optical disk has the film in which the active energy ray hardening composite for the optical disk is applied to base material and obtained through hardening by irradiation with the active energy ray.
COPYRIGHT: (C)2007,JPO&INPIT
Seiji Nuri
| JP2004299263A |
Ishibashi Masayuki
Shinichi Iwata
Masaaki Ogata