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Organic-inorganic composite forming material, organic-inorganic composite, production method thereof and optical element

A manufacturing method and composite technology, which can be used in optical components, optics, instruments, etc., and can solve problems such as resin whiteness

Inactive Publication Date: 2007-06-27
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no description of a method for stably dispersing these fine particles when a large amount of metal oxide fine particles are blended in order to obtain a high refractive index.
A large amount of metal oxide fine particles are mixed, and the metal oxide fine particles are aggregated in the resin, and the aggregated fine particles scatter light, which causes the problem of white turbidity of the resin

Method used

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  • Organic-inorganic composite forming material, organic-inorganic composite, production method thereof and optical element
  • Organic-inorganic composite forming material, organic-inorganic composite, production method thereof and optical element
  • Organic-inorganic composite forming material, organic-inorganic composite, production method thereof and optical element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～14 and comparative example 1～2

[0050] (1) Nb after stirring 2 o 5 In the nanoparticle dispersion, add dropwise methacryloxypropyltrimethoxysilane (MPTMS) and diphenyldimethoxysilane (DPhDMS), continue stirring for about 15 minutes, then dropwise add 2N hydrochloric acid: ethanol = 1:1 mixture. With MPTMS, DPhDMS and Nb 2 o 5 The content of each component is used in the manner of the content shown in Table 1. After the dropwise addition, stir for about 30 minutes, then let it stand for 72 hours to carry out hydrolysis and polycondensation of MPTMS and DPhDMS, and polymerize the metal polymer.

[0051] (2) In the liquid containing the organometallic polymer and inorganic particles polymerized in (1), 2-hydroxyethyl methacrylate (2HEMA) and a polymerization initiator were added at the contents shown in Table 1 (trade name: Irugakiyua 184) was heated at 100°C while stirring to remove ethanol in the liquid.

[0052] In Examples 1 to 14 in which 2HEMA was added, the transparency of the resin was maintained ...

Embodiment 1 and 15 and comparative example 3～5

[0061] As the acrylic monomer, the monomers shown in Table 2 were used, and the components were used at the contents shown in Table 2, and the organic-inorganic composite was synthesized by the steps (1) and (2) of the above-mentioned examples. Forming materials. Table 2 shows the state of the resin in the synthesis process. In Table 2, "after mixing" indicates the state after adding acrylic monomers and mixing, "after removing ethanol" indicates the state after removing ethanol, and "after leaving for 12 hours" indicates the state after removing ethanol and leaving for 12 hours status.

[0062] Table 2

[0063]

[0064] As shown in Table 2, in Examples 1 and 15 using the acrylic monomer having a hydroxyl group of the present invention, the resin was in a transparent state. On the other hand, in Comparative Examples 3-5 which used the acrylic-type monomer which does not have a hydrophilic group, such as a hydroxyl group, resin was in the state of white turbidity...

Embodiment 16

[0066] replace Nb 2 o 5 Nanoparticle dispersion using TiO 2 The nanoparticle dispersion was prepared through the steps (1) to (3) in the above examples to produce an organic-inorganic composite. The mixing ratio is: 0.21g of MPTMS, 0.44g of DPhDMS, 0.52g of TiO 2 Nanoparticles, 0.11 g of 2HEMA, 0.02 g of a polymerization initiator, 0.2 g of a light stabilizer TINUVIN (チヌビン) 292, and 0.04 g of an ultraviolet absorber TINUVIN (チヌビン) 400. Therefore, the concentration of 2HEMA is 8.2 wt%, TiO 2 The concentration of nanoparticles is 33.9% by weight.

[0067] The refractive index of the obtained organic-inorganic composite was 1.63.

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Abstract

An organic-inorganic composite forming material which contains an organometallic polymer having an -M-O-M- bond (M denotes a metal atom), an acrylic monomer or oligomer having a hydrophilic group and inorganic particles. Preferably, the organometallic polymer has Si in the place of M and is obtained via hydrolysis and polycondensation of trialkoxysilane having a photo- or thermally-polymerizable group and dialkoxysilane having a phenyl group.

Description

technical field [0001] The present invention relates to a material for forming an organic-inorganic composite that can be used as a material for optical elements such as lenses, diffraction gratings, optical waveguides, and light-emitting elements, an organic-inorganic composite, a method for producing the same, and an optical element using the composite. Background technique [0002] In camera-equipped mobile phones, digital cameras, and the like, the demand for resin-made aspheric lenses or composite aspheric lenses is increasing. [0003] Composite aspheric lens is a lens formed by forming an aspherical resin lens on a glass lens. Compared with a resin-made aspheric lens, since the resin part is as thin as several hundred μm, it is caused by the influence of temperature, etc. Small change in shape and excellent heat resistance. Compound aspherical lenses used in mobile phones are required to have high environmental resistance, and therefore heat resistance at about 150°C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/00C08K3/22G02B1/04
Inventor 林伸彦松本光晴藏本庆一中井正也
Owner SANYO ELECTRIC CO LTD
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