| 简介 |
PROBLEM TO BE SOLVED : To provide a composition for a hologram recording medium, which has excellent recording properties with homogeneity and less striae and excellent storage stability (shelf life), and a hologram recording medium using the same.
SOLUTION : A composition for a hologram recording medium contains a compound having an isocyanate group, a compound having an isocyanate-reactive functional group, and a hardening catalyst. The hardening catalyst includes a bismuth catalyst in combination with a rare earth catalyst. The composition for a hologram recording medium further contains a polymerizable monomer and a photopolymerization initiator. A hologram recording medium uses the composition for a hologram recording medium.
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