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Photosensitive composition containing organic fine particles

A technology of photosensitive composition and organic particles, which is applied in the direction of photosensitive materials, optics, and optomechanical equipment used in optomechanical equipment, which can solve the problems of scattering loss, recording density reduction, impossible particle pattern, etc., and achieve high diffraction Efficiency, Effect of Low Light Scattering Loss

Inactive Publication Date: 2008-03-12
UNIVERSITY OF ELECTRO-COMMUNICATIONS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fine particles used have a large particle size of 0.1 to 20 μm in order to obtain a thickening effect. When used in a hologram recording layer, there is a problem that the recording density decreases due to scattering loss.
In addition, this invention is a recording method that generates a refractive index distribution by interference exposure of a high-refractive-index monomer in a low-refractive polymer, which has the problem of scattering loss due to layer separation after recording.
[0014] A multi-branched polymer microparticle laminate is reported (refer to Patent Document 10). However, in this invention, the polymer microparticle laminate is produced by the mutual adsorption method using electrostatic interaction, and it is impossible to use interference exposure to Particles move to form patterns

Method used

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  • Photosensitive composition containing organic fine particles
  • Photosensitive composition containing organic fine particles
  • Photosensitive composition containing organic fine particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] Preparation of photosensitive composition

[0151] Dissolve organic particles in 0.253g toluene: hyperbranched polymer of 0.1g formula (1) (manufactured by Nissan Chemical Industry Co., Ltd., trade name Optobis HPS-H), add polymerizable compound: 0.212g tricyclodecane Dimethanol dimethacrylate (manufactured by Shin Nakamura Chemical Industry Co., Ltd., trade name: NK Ester DCP), after uniform dispersion, the photopolymerization initiator: 0.002g dicyclopentadienyl-titanium-bis(2, 6-Difluoro-3-(1H-pyrrol-1-yl)phenyl) (manufactured by Chiba Specialty Chemical Co., Ltd., trade name Irgacure 784) was dissolved to prepare a photosensitive composition.

[0152]

[0153] The weight-average molecular weight Mw of the hyperbranched polymer of formula (1) measured by gel permeation chromatography with polystyrene calibration was 38,900, and the degree of dispersion Mw / Mn was 4.8.

[0154] The hyperbranched polymer of formula (1) is 1.61 for the refractive index of the light o...

Embodiment 2

[0162] Preparation of photosensitive composition

[0163] Dissolve organic particles in 0.253g toluene: the hyperbranched polymer of 0.1g formula (2) (manufactured by Nissan Chemical Industries (KK), trade name Optobis HPEMA-H), add polymerizable compound: 0.196g to-bis( β-methacryloyloxyethylthio)xylylene, after uniform dispersion, make photopolymerization initiator: 0.0022g dicyclopentadienyl-titanium-bis(2,6-difluoro-3-( 1H-Pyrrol-1-yl)phenyl) (manufactured by Chiba Specialty Chemical Co., Ltd., trade name Irgacure 784) was dissolved to prepare a photosensitive composition.

[0164]

[0165] The weight average molecular weight Mw of the hyperbranched polymer of the formula (2) measured by gel permeation chromatography with polystyrene calibration was 36,100, and the degree of dispersion Mw / Mn was 2.2.

[0166] For the light of wavelength 589nm, the refractive index of the hyperbranched polymer of formula (2) is 1.51, and the refractive index of the polymer obtained by p...

Embodiment 3

[0173] Observation using a transmission electron microscope

[0174] Using the same method as in Example 1, the hyperbranched polymer (manufactured by Nissan Chemical Industry Co., Ltd., trade name Optobis HPS-H, measured with polystyrene calibration) has a weight-average molecular weight Mw of 38,900 and a degree of dispersion Mw / Mn is 4.9) dispersed in a polymerizable compound: p-bis(β-methacryloyloxyethylthio)xylylene, adding a photopolymerization initiator: dicyclopentadienyl-titanium-bis(2 , 6-difluoro-3-(1H-pyrrol-1-yl)phenyl) (manufactured by Chiba Specialty Chemical Co., Ltd., trade name Irgacure 784) to prepare a photosensitive composition with 34% by volume of HPS-H. Using this composition, a volume phase hologram recording medium was produced by the same method as in Example 1, and a volume phase hologram was produced by the same method as in Example 1.

[0175] The obtained film is directly sliced ​​into slices along the in-plane direction with a microtome, makin...

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Abstract

This invention provides a photosensitive composition, which has low light scattering loss and can permanently form a hologram with high diffraction efficiency, and a method for pattern formation using the composition. The photosensitive composition is used for pattern formation by pattern-wise exposure and is characterized by comprising (a) a polymerizable compound, (b) a photopolymerization initiator, and (c) organic fine particles.

Description

technical field [0001] The present invention relates to a photosensitive composition capable of forming a pattern by pattern exposure, moving each component in the composition, and changing the spatial distribution of each component, and also relates to a method for forming a pattern using the composition, the photosensitive composition The composition is used as a composition for a hologram recording material when forming a hologram recording layer for recording a volume phase hologram, the hologram recording layer, and a volume phase hologram recording medium including the hologram recording layer. Background technique [0002] Holographic diffraction gratings (holograms) are made by recording light and dark (interference) patterns of light on photosensitive materials, etc., as patterns of refractive index or absorptivity, and have various functions, so they have been reported to be widely used in diffractive optical elements, Holographic optical storage, narrow-band filte...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/027G03H1/02
Inventor 富田康生古岛康志穐本和彦近间克己日高基彦大土井启祐
Owner UNIVERSITY OF ELECTRO-COMMUNICATIONS
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