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Photosensitive composition for forming volume hologram recording layer

A volume hologram and recording layer technology, applied in hologram recording material, holographic process, data recording and other directions, can solve the problem of insufficient recording medium, and achieve the effects of curing shrinkage inhibition, improved cation curability, and excellent moisture resistance.

Inactive Publication Date: 2015-06-17
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a volume hologram recording medium having a volume hologram recording layer obtained from the composition is insufficient in terms of moisture resistance, thermal stability, curing shrinkage resistance, and recording capacity.

Method used

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  • Photosensitive composition for forming volume hologram recording layer
  • Photosensitive composition for forming volume hologram recording layer
  • Photosensitive composition for forming volume hologram recording layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0133] 48 parts by weight of 3,4,3',4'-diepoxybicyclohexane as a cationic polymerizable compound, and 24 parts by weight of 2-ethylhexyl vinyl ether as a compound containing a functional group having an active proton 5.9 parts by weight of isopropanol of the compound, 0.8 parts by weight of triphenylsulfonium salt (trade name "San-Aid SI-60L", manufactured by Sanshin Chemical Industry Co., Ltd.) as a thermal acid generator (quantity in terms of solution) : solid content concentration 32.3% by weight), 24 parts by weight of hydroxyethylated o-phenylphenol acrylate (trade name "A-LEN-10", manufactured by Shin-Nakamura Chemical Industry Co., Ltd.) as a radically polymerizable compound, 2.4 parts by weight of 3,3',4,4'-tetrakis(tert-butylperoxycarbonyl)benzophenone as a photoradical polymerization initiator (amount as a solution: solid content concentration 40% by weight), and 0.08 parts by weight of the cyanine dye of the sensitizing dye was blended and stirred at room temperatur...

Embodiment 2～8、 comparative example 1～3

[0136] Except changing to the formulation (unit is part by weight) and heating conditions shown in Table 1, the photosensitive composition for volume hologram recording layer formation was prepared in the same manner as in Example 1, the volume hologram recording medium was produced, and the dynamic range was measured ( M / #: 1mm conversion) and cure shrinkage. In addition, the compounding quantity of the photoradical polymerization initiator (3,3', 4,4'-tetrakis (t-butylperoxycarbonyl) benzophenone) in Table 1 was expressed as a solution (solid content concentration: 40% by weight) The combination amount is indicated. Similarly, the compounding quantity of the thermal acid generator in Table 1 is shown by the compounding quantity of a solution (32.3 weight% of solid content concentration). The results are summarized in the table below.

[0137]

[0138] The compounds in Table 1 are shown below.

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Abstract

Provided is a photosensitive composition for forming a volume hologram recording layer, whereby it becomes possible to form a volume hologram recording layer that has excellent moisture resistance and thermal stability, does not undergo cure shrinkage upon the recording of a hologram and has excellent multiplexed recording properties. The photosensitive composition for forming a volume hologram recording layer according to the present invention comprises a three-dimensionally cross-linked polymer matrix precursor material and components (D) and (E) as mentioned below, wherein the three-dimensionally cross-linked polymer matrix precursor material comprises components (A), (B) and (C) as mentioned below at such a content ratio that the molar ratio of a functional group having an active proton in the component (B) to an alicyclic epoxy group in a compound represented by formula (1) in the component (A) (former / latter) becomes 0.01 to 0.3: (A) a cationically polymerizable compound containing a compound represented by formula (1); (B) a compound having a functional group having an active proton; (C) a thermoacid generator; (D) a radically polymerizable compound; and (E) a radical polymerization initiator.

Description

technical field [0001] The present invention relates to a photosensitive composition for forming a volume hologram recording layer for forming a volume hologram recording medium three-dimensionally multiplex recording information in the form of volume holograms using laser light. This application claims the priority of Japanese Patent Application No. 2012-227784 for which it applied in Japan on October 15, 2012, and uses the content here. Background technique [0002] A hologram memory that records information in the form of a hologram has attracted attention as a next-generation information recording medium capable of large-capacity and high-speed transmission. As a hologram recording medium, there is widely known a hologram recording medium having a recording layer (hologram recording layer) composed of a radical polymerizable monomer, a thermoplastic binder resin, a photoradical polymerization initiator , and a photosensitive composition for forming a volume hologram rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/02G11B7/24035G11B7/244C08L63/00
CPCG11B2007/25301G11B7/24044G11B2007/24705G11B2007/25305G11B2007/25307G11B7/245G03H2001/186G03H2260/12C08G59/24C08G59/687C08L63/10C08L63/00C08G65/18G03H1/0248C08L33/066
Inventor 水田智也三宅弘人
Owner DAICEL CHEM IND LTD
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