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    • 4. 发明公开
    • HOLOGRAM RECORDING MATERIAL
    • HOLOGRAMMAUFZEICHNUNGSMATERIAL
    • EP1873593A1
    • 2008-01-02
    • EP06731265.2
    • 2006-04-06
    • NITTO DENKO CORPORATION
    • KAWAGUCHI, Yoshihide
    • G03H1/02C08F4/52C08F20/18C08F290/04C08F299/00
    • C08F220/40G03F7/001G03F7/0388G03H1/02G03H2001/0264G03H2260/12
    • The present invention provides a hologram recording material which can modulate its refractive index effectively with visible light laser and is excellent also in transparency after this modulation. The present invention relates to a hologram recording material comprising a polymer (A) having a radically polymerizable side chain vinyl group in the molecule thereof, said polymer (A) being a polymer of monomers comprising as an essential component an acryl-vinyl monomer represented by the following formula (1): C ⁢ H 2 = C R 1 ⁢ C = O ⁢ O - R 2 = C ⁢ H 2
      wherein R 1 represents a hydrogen atom or methyl group, and R 2 represents a saturated or unsaturated hydrocarbon group having 1 to 20 carbon atoms, which may contain hetero atoms or halogen atoms in the molecule thereof; and a photopolymerization initiation source (B) which generates an active seed by visible light, and particularly relates to a hologram recording material having the aforementioned constitution in which the aforementioned photopolymerization initiation source (B) is a photopolymerization initiator which absorbs visible light to generate an active seed or a mixture of visible light-sensitizing dye and photopolymerization initiator.
    • 本发明提供一种能够利用可见光激光器有效地调节其折射率的全息图记录材料,并且在该调制之后的透明度也优异。 本发明涉及一种全息图记录材料,其包括在其分子中具有可自由基聚合的侧链乙烯基的聚合物(A),所述聚合物(A)是包含作为主要组分的主要组分的丙烯酸 - 乙烯基单体的聚合物, 下式(1):C ¢H 2 = CR 1 ¢C = O ¢O-R 2 = C ¢H 2其中R 1表示氢原子或甲基,R 2表示饱和或 具有1〜20个碳原子的不饱和烃基,其分子中可以含有杂原子或卤素原子; 以及通过可见光产生活性种子的光聚合引发源(B),特别涉及具有上述构成的全息图记录材料,其中上述光聚合引发源(B)是吸收可见光以产生可见光的光聚合引发剂 活性种子或可见光增感染料和光聚合引发剂的混合物。