Photosensitive composition for volume hologram recording, volume hologram recording medium using same, method for manufacturing volume hologram recording medium, and hologram recording method

A technology of photosensitive composition and volume hologram, which is applied in the direction of hologram recording materials, optical recording carriers, recording carrier materials, etc., can solve the problems of lack of moisture resistance and thermal stability, and achieve the increase of free space and the suppression of Effect of cracks, excellent moisture resistance

Inactive Publication Date: 2014-12-24
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned recording materials, the ester-type alicyclic epoxy compound forms a three-dimensional crosslinked matrix polymer, so there are problems such as insufficient moisture resistance and thermal stability.

Method used

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  • Photosensitive composition for volume hologram recording, volume hologram recording medium using same, method for manufacturing volume hologram recording medium, and hologram recording method
  • Photosensitive composition for volume hologram recording, volume hologram recording medium using same, method for manufacturing volume hologram recording medium, and hologram recording method
  • Photosensitive composition for volume hologram recording, volume hologram recording medium using same, method for manufacturing volume hologram recording medium, and hologram recording method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0137] 50 parts by weight of pentaerythritol triacrylate (trade name "A-TMM-3", manufactured by Shin-Nakamura Chemical Co., Ltd.), which is a trifunctional acrylate compound as a radical polymerizable compound, and 2 Functional alicyclic epoxy compound (3,4,3', 4'-diepoxy bicyclohexane) 25 parts by weight, epoxy hexahydrophthalate di-2-ethylhexyl (trade name "SANSO CIZER E-PS", 25 parts by weight of Shin Nippon Rika Co., Ltd., 3,3',4,4'-tetrakis(tert-butylperoxycarbonyl)benzidine as photoradical polymerization initiator 12.5 parts by weight of ketone (amount as a solution; solid content concentration 40% by weight), 0.774 parts by weight of triphenylsulfonium salt (trade name "Sanaid SI-60L", manufactured by Sanshin Chemical Industry Co., Ltd.) as a thermal acid generator Parts (amount as a solution; solid content concentration 32.3% by weight) and 3-ethyl-2-[3-(3-ethyl-5-phenyl-2-benzoxazolylene) as a sensitizing dye Propyl]-5-phenylbenzoxazolium bromide (3-Ethyl-2-[3-(3-eth...

Embodiment 2～12、 comparative example 1～3

[0140] Using various radically polymerizable compounds, cationically polymerizable compounds, photoradical polymerization initiators, thermal acid generators, sensitizing dyes, and plasticizers in the compounding amounts shown in Table 1, it was prepared in the same manner as in Example 1. Volume hologram recording medium (thickness of the volume hologram recording layer is 100 μm thick and 500 μm thick), using a volume hologram recording medium with a volume hologram recording layer thickness of 100 μm to measure diffraction efficiency, shrinkage rate, using volume hologram A volume hologram recording medium with a recording layer having a thickness of 500 μm was evaluated for storage stability. In addition, Table 1 shows the heating conditions and evaluation results during the production of the volume hologram recording medium. In addition, in Table 1, the compounding quantity of each compound is shown by weight part. In addition, the compounding quantity of the radical pho...

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Abstract

The present invention addresses the problem of providing a photosensitive composition for volume hologram recording from which a volume hologram recoding medium that shows suppressed cure shrinkage and suppressed cracking in hologram recording (hologram formation) can be formed. The photosensitive composition for volume hologram recording according to the present invention is characterized by comprising: an alicyclic epoxy compound (A) represented by formula (I), a hot acid generating agent (B), a radical-polymerizable compound (C), a radical polymerization initiator (D), and at least one kind of an epoxy compound (E) selected from the group consisting of a compound represented by formula (1), an epoxidized fatty acid ester and an epoxidized product of a conjugated diene-type polymer.

Description

technical field [0001] The present invention relates to a photosensitive composition for volume hologram recording, a volume hologram recording medium obtained from the composition, a method for producing the same, and a hologram recording method using the volume hologram recording medium. Background technique [0002] Hologram memory, which records information as a hologram, is attracting 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, for example, a photosensitive composition for hologram recording mainly composed of a radical polymerizable monomer, a thermoplastic binder resin, a photoradical polymerization initiator, and a sensitizing dye. The formed recording layer (hologram recording layer). [0003] Information is recorded by making the photosensitive composition for hologram recording into a film and exposing it to interference light. The radica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/02G03H1/04G03H1/18G11B7/24035G11B7/244
CPCG03H1/02G03H1/0248G03H2001/0264G03H2001/186G03H2260/12G11B7/24044G11B7/244G11B7/245G11B7/246
Inventor 水田智也三宅弘人
Owner DAICEL CHEM IND LTD
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