Curable composition and cured product thereof

A curable composition and compound technology, applied in the direction of instruments, optical components, optics, etc., can solve the problems of deterioration, coloring, damage to transparency, etc., and achieve excellent heat resistance and environmental resistance, excellent operability, Abbe low number effect

Inactive Publication Date: 2012-03-07
SHOWA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, in Patent Document 5, although it is disclosed that the above-mentioned composition is a liquid at normal temperature, there is no description about the specific viscosity.
In addition, regarding the cured product obtained by curing the composition, there is no specific description in Patent Document 5 regarding transparency, and there is no discussion regarding heat resistance.
The above-mentioned cured product contains sulfur, so it is easy to be colored and deteriorated by heat, and transparency may be impaired

Method used

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  • Curable composition and cured product thereof
  • Curable composition and cured product thereof
  • Curable composition and cured product thereof

Examples

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Embodiment

[0240]The following examples describe the present invention in detail, but the technical scope of the present invention is not limited by the following examples, as long as it does not exceed the technical idea of ​​the present invention.

[0241]

Synthetic example 1

[0242] (Synthesis example 1) Acrylate compound (A-1)

[0243] 450 parts by mass of toluene (manufactured by Junsei Chemical Co., Ltd.), 90 parts by mass of Glycerol acrylate methacrylate (1,3-substituted product of glycerol, manufactured by Shin-Nakamura Chemical Co., Ltd.) were added to the reaction vessel. 80 parts by mass of 1-naphthoyl chloride (manufactured by Tokyo Chemical Industry Co., Ltd.) was slowly added dropwise under cooling. Furthermore, 43 parts by mass of triethylamine (manufactured by Tokyo Chemical Industry Co., Ltd.) was slowly dripped in the obtained reaction solution, and it stirred at room temperature.

[0244] After 15 hours, it was confirmed by high performance liquid chromatography that the glycerin acrylate methacrylate as a raw material had almost disappeared, and pure water was added to terminate the reaction. Then, the obtained reaction solution was extracted with ethyl acetate, and washed twice with saturated brine. Furthermore, after drying wi...

Synthetic example 2

[0245] (Synthesis Example 2) Methacrylate Compound (A-2)

[0246] 450 parts by mass of toluene (manufactured by Junsei Chemical Co., Ltd.) and 90 parts by mass of glycerol dimethacrylate (1,3-substitution of glycerin, manufactured by Shin-Nakamura Chemical Co., Ltd.) were added to the reaction vessel, and then cooled 85 parts by mass of 4-phenylbenzoyl chloride (manufactured by Tokyo Chemical Industry Co., Ltd.) was slowly added dropwise. Furthermore, 40 mass parts of triethylamines (made by Tokyo Chemical Industry Co., Ltd.) were dripped slowly in the obtained reaction solution, and it stirred at room temperature.

[0247] After about 15 hours, it was confirmed by high performance liquid chromatography that the glycerol dimethacrylate as a raw material had almost disappeared, and pure water was added to terminate the reaction. Then, the obtained reaction solution was extracted with ethyl acetate, and washed twice with saturated brine. Furthermore, after drying with anhydrou...

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Abstract

Disclosed is a curable composition having a proper viscosity and excellent handing properties. Also disclosed is a cured article which is characterized by being produced by curing the curable composition, having excellent transparency, heat resistance and environmental resistance and a low Abbe's number, and which, when produced using the curable composition in combination with a material having a high Abbe's number, can have a reduced chromatic aberration. The curable composition is characterized by comprising (a) silica microparticles, (b) a (meth)acrylate compound having at least two ethylenically unsaturated groups and having no ring structure, (c) a (meth)acrylate compound having at least two ethylenically unsaturated groups and also having an aromatic ring structure, and (d) a polymerization initiator, wherein the surfaces of the silica microparticles (a) are treated with a specific silane compound (e) and a specific silane compound (f).

Description

technical field [0001] The present invention relates to a curable composition having an appropriate viscosity and excellent workability. In addition, the present invention relates to a cured product obtained by curing the curable composition, which is excellent in transparency, heat resistance, environment resistance, and molding processability, and has a low Abbe number, and is obtained by combining with A combination of materials with a high Abbe number can reduce chromatic aberration. Background technique [0002] In recent years, with the progress of the optical industry such as optical devices, optical communications, and displays, materials with excellent optical properties have been desired. Examples of such materials include optical lenses, optical disc substrates, plastic substrates for liquid crystal display elements, substrates for color filters, plastic substrates for organic EL display elements, solar cell substrates, touch panels, optical elements, optical wav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/14C08F2/44G02B1/04
CPCC08F2/44C08F292/00C08K9/06G02B1/041C08L33/08C08L33/10C08F222/10C08L33/06C08F290/14G02B1/04
Inventor 浦川庆史山木繁宫田英雄御手洗信幸山木沙织石井伸晃
Owner SHOWA DENKO KK
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