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    • 3. 发明授权
    • Photosensitive recording material, photosensitive recording medium, and
process for producing hologram using this photosensitive recording
medium
    • 感光记录材料,感光记录介质,以及使用该光敏记录介质制造全息图的方法
    • US6045953A
    • 2000-04-04
    • US852206
    • 1997-05-06
    • Yasushi OheHiromitsu ItoNiro Watanabe
    • Yasushi OheHiromitsu ItoNiro Watanabe
    • G03F7/027G03C1/73G03F7/00G03F7/004G03F7/029G03F7/038G03H1/02G03H1/04G03H1/00
    • G03F7/029G03F7/001G03F7/038G03F7/0045G03H2001/026G03H2260/12
    • A photosensitive recording material comprising an alicyclic, solvent-soluble, thermosetting epoxy oligomer capable of cationic polymerization, the oligomer being of a specified structure, an aliphatic monomer having at least one ethylenically unsaturated bond, the monomer being liquid at normal temperature and pressure, having a boiling point of 100.degree. C. or above at normal pressure and being capable of radical polymerization, a photoinitiator selected from the group consisting of i) a first photoinitiator capable of simultaneously generating a radical species that activates radical polymerization and a Br.o slashed.nsted acid or Lewis acid that activates cationic polymerization, upon exposure to actinic radiation, and ii) a second photoinitiator comprised of a radical polymerization photoinitiator capable of generating a radical species that activates radical polymerization upon exposure to actinic radiation and a cationic polymerization photoinitiator capable of generating a Br.o slashed.nsted acid or Lewis acid that activates cationic polymerization upon exposure to actinic radiation, and a spectral sensitizer that sensitizes the first photoinitiator or second photoinitiator; the aliphatic monomer being mixed in an amount of from 20 parts by weight to 80 parts by weight based on 100 parts by weight of the alicyclic epoxy oligomer. This photosensitive recording material is highly effective for producing a volume type phase hologram having superior diffraction efficiency, transparency, weatherability such as thermal resistance, and chemical stability.
    • 一种光敏记录材料,其包含能够进行阳离子聚合的脂环族,溶剂可溶的热固性环氧低聚物,具有特定结构的低聚物,具有至少一个烯属不饱和键的脂族单体,所述单体在常温常压下为液体,具有 在常压下沸点为100℃以上并且能够进行自由基聚合的光引发剂,选自i)第一光引发剂,其能够同时产生激活自由基聚合的自由基物质和Br + 526 nsted 酸或路易斯酸,其在暴露于光化辐射下激活阳离子聚合,和ii)第二光引发剂,其包含能够产生在暴露于光化辐射时活化自由基聚合的自由基聚合光引发剂和能产生能量的阳离子聚合光引发剂 一个Br + 526 nsted 暴露于光化辐射时激活阳离子聚合的酸或路易斯酸,以及使第一光引发剂或第二光引发剂敏化的光谱增感剂; 脂肪族单体以相对于100重量份脂环族环氧低聚物为20重量份〜80重量份的量混合。 该感光记录材料对于制造具有优异的衍射效率,透明性,耐热性如耐热性和化学稳定性的体积型相位全息图是非常有效的。
    • 10. 发明授权
    • Rewritable thermosensitive recording medium
    • 可重写热敏记录介质
    • US5278129A
    • 1994-01-11
    • US972939
    • 1992-11-06
    • Niro WatanabeAtsushi KijimaYuji NakatsuSusumu Watanabe
    • Niro WatanabeAtsushi KijimaYuji NakatsuSusumu Watanabe
    • B41M5/36
    • B41M5/363
    • A rewritable thermosensitive recording medium having a recording layer, the transparency of which reversibly changes depending on the temperature thereof. Further, the recording layer contains a matrix material and an organic low-molecular-weight material dispersed in the matrix material as main components thereof. Moreover, an alicyclic dicarboxylic acid compound is added to the organic low-molecular-weight material dispersed in the matrix material. Furthermore, by adding the alicyclic dicarboxylic acid compound to the organic low-molecular-weight material, the eutectic point of the organic low-molecular-weight material and the alicyclic dicarboxylic acid compound becomes higher than the melting point of the organic low-molecular-weight material. Additionally, in spite of the fact that the amount of the alicyclic dicarboxylic acid compound to be added to the organic low-molecular-weight material is small, the difference between the eutectic point of the organic low-molecular-weight material and the alicyclic dicarboxylic acid compound and the melting point of the organic low-molecular-weight material is much larger than those obtained in cases of conventional recording materials. Consequently, the range of temperature, to which the recording layer should be heated for changing a state thereof from an opaque state to a transparent state, can be considerably enlarged without reducing the opacity of the recording layer.
    • 一种具有记录层的可重写热敏记录介质,其透明度根据其温度可逆地改变。 此外,记录层含有分散在基质材料中的基质材料和有机低分子量材料作为其主要成分。 此外,在分散在基质材料中的有机低分子量材料中加入脂环族二羧酸化合物。 此外,通过向有机低分子量材料中添加脂环族二羧酸化合物,有机低分子量材料和脂环族二羧酸化合物的共晶点变得高于有机低分子量材料的熔点, 重量材料。 此外,尽管添加到有机低分子量材料中的脂环族二羧酸化合物的量小,但是有机低分子量材料的共晶点与脂环族二羧酸之间的差异 酸性化合物和有机低分子量材料的熔点远远大于常规记录材料的熔点。 因此,可以在不降低记录层的不透明性的情况下,显着地扩大将记录层从不透明状态改变为透明状态而被加热的温度范围。