COMPOSITION FOR HOLOGRAM-RECORDING MATERIAL, HOLOGRAM-RECORDING MEDIUM, AND PROCESS FOR PRODUCING THE SAME
申请人:National Institute of Advanced Industrial Science and Technology
公开号:EP1376268A1
公开(公告)日:2004-01-02
An object of the present invention is to provide a hologram recording material composition comprising a radical polymerizable compound being solid at an ordinary temperature and having a 9,9-diarylfluorene skeleton, a polymeric binder and a plasticizer, the composition being excellent in transparency and diffraction efficiency, which are characteristics required for a hologram. The hologram recording material composition comprises a thermoplastic resin (A) which is soluble in a solvent, a radical polymerizable compound (B) which is solid at an ordinary temperature and at ordinary pressure and has the 9,9-diarylfluorene skeleton and at least one radical polymerizable unsaturated double bond, a plasticizer (C) and a photopolymerization initiator (D). A weight percentage ratio of the thermoplastic resin (A), the radical polymerizable compound (B) and the plasticizer (C), (A) : (B) : (C) is 10 to 80 : 10 to 80 : 10 to 80. A refractive index of the radical polymerizable compound (B) is larger than a weighted mean of that of the thermoplastic resin (A) and that of the plasticizer (C).
本发明的目的是提供一种全息图记录材料组合物,该组合物由一种在常温下为固态并具有 9,9-二芳基芴骨架的自由基可聚合化合物、一种聚合物粘合剂和一种增塑剂组成,该组合物具有优异的透明度和衍射效率,而这正是全息图所需要的特性。全息图记录材料组合物包括一种可溶于溶剂的热塑性树脂(A)、一种可自由基聚合的化合物(B)(该化合物在常温常压下为固体,具有 9,9-二芳基芴骨架和至少一个可自由基聚合的不饱和双键)、一种增塑剂(C)和一种光聚合引发剂(D)。热塑性树脂(A)、自由基可聚合化合物(B)和增塑剂(C)的重量百分比比(A): (B):(C)为 10 至 80:10 至 80:10 至 80。自由基可聚合化合物(B)的折射率大于热塑性树脂(A)和增塑剂(C)的加权平均值。