Ionization radiation-curable composition

A curable composition, ionizing radiation technology, applied in the direction of instruments, optical components, optics, etc., can solve the problems of reduced performance over time, insufficient performance or durability, etc.

Inactive Publication Date: 2008-02-27
NIPPON SHOKUBAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this resin composition, since the performance of suppressing the deterioration of the physical properties over time, that is, the durability is insufficient, further studies are required to improve this problem and make it suitable for various applications.

Method used

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  • Ionization radiation-curable composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0183] Although Examples are given below and this invention is demonstrated in more detail, this invention is not limited to these Examples.

Synthetic example 1

[0185] (M-1: Dimethacrylate of NPG-2EO)

[0186] In a flask equipped with a stirring device, a thermometer, a condenser, and a mixed gas inlet pipe of air and nitrogen, 192 g of neopentyl glycol ethylene oxide 2-mole adduct (hereinafter referred to as "NPG-2EO"), 400 g of formazan Methyl acrylate (hereinafter referred to as "MMA"), 3.84g of dibutyltin oxide (hereinafter referred to as "DBTO") and 19.2mg of 4-hydroxy-2,2,6,6-tetramethylpiperidine-N- Oxygen (hereinafter abbreviated as "4H-TEMPO"), and stirred, the temperature was raised to 110°C. Only methanol generated by the reaction was distilled off, and a transesterification reaction was performed for 6 hours. MMA was distilled off from the obtained reaction liquid, and the dimethacrylate of the ethylene oxide 2-mol adduct of neopentyl glycol was obtained. This was referred to as compound (M-1).

[0187] When the content of sulfur atoms contained in the obtained compound (M-1) was measured by inductively coupled plasma a...

Synthetic example 2

[0189] (M-2: Dimethacrylate of NPG-4EO)

[0190] In a flask with a stirring device, a thermometer, a condenser, a mixed gas inlet pipe of air and nitrogen, 280 g of neopentyl glycol ethylene oxide 4 molar adducts (hereinafter referred to as "NPG-4EO"), 400 g of MMA, 5.60g of DBTO and 28.0mg of 4H-TEMPO were stirred and heated to 110°C. Only methanol generated by the reaction was distilled off, and a transesterification reaction was performed for 6 hours. MMA was distilled off from the obtained reaction liquid, and the dimethacrylate of the ethylene oxide 4 mole adduct of neopentyl glycol was obtained. This was referred to as compound (M-2).

[0191] When the content of sulfur atoms contained in the obtained compound (M-2) was measured by ICP, no sulfur atoms were observed.

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Abstract

To provide a radiation-curable composition which can provide a cured product capable of sufficiently satisfying all of light resistance, transparency and curability and therefore can be useful in much more applications in addition to optical members, lighting members, and automobile members. A radiation-curable composition used after cured by radiation energy, wherein a cured product produced by curing the curable composition by radiation energy of 2 J / cm<2 >satisfies: an initial light transmittance of 80% or more at a wavelength of 380 nm, and a light transmittance retention of 90% or more after 200 hours of accelerated light resistance test.

Description

technical field [0001] The present invention relates to an ionizing radiation curable composition and a cured product. More specifically, the present invention relates to an ionizing radiation-curable composition widely used in various applications such as optical members (optical display devices), lighting members (lighting fixtures), automobile members (vehicle parts), building materials, and optical parts. . Background technique [0002] The ionizing radiation curable composition is a curable composition that is cured by ionizing radiation energy such as electromagnetic waves, ultraviolet rays, visible rays, infrared rays, electron rays, and gamma rays. Compared with transparent inorganic materials such as glass, it is easier to mold and process Excellent performance, so it is widely used in various applications such as optical components, lighting components, and automotive components. In these applications, for the light originating from a light source having a light ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08L33/12G02B1/04
CPCC08F222/1006C08F222/102
Inventor 吉宗壮基川田雄一深田亮彦
Owner NIPPON SHOKUBAI CO LTD
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