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Curable composition and optical adhesive using same

一种固化性组合物、化合物的技术，应用在非高分子有机化合物粘合剂、胶粘剂、黏合剂添加剂等方向，能够解决稳定性降低、需要低温保存等问题，达到降低光反射的效果

Active Publication Date: 2020-10-02
MITSUBISHI GAS CHEM CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stability of the composition is lowered by MPSMA etc. compounded to increase the refractive index, so measures such as low-temperature storage are required, and improvement is desired.

Method used

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  • Curable composition and optical adhesive using same
  • Curable composition and optical adhesive using same
  • Curable composition and optical adhesive using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] Put 40 g of 9,9-bis(4-(2-acryloyloxyethoxy)phenyl)fluorene (A component), 30 g of 1,5-dimercapto-3-thiopentane (B Component), 30g of diallyl naphthalene dicarboxylate (C component), 3g of 1-hydroxy-cyclohexyl phenyl ketone (D component), and 0.01g of N-nitrosophenylhydroxylamine aluminum (G component ), and stirred at 60° C. for 1 hour to prepare a curable composition.

[0110] The curable composition is held together with 0.25mm spacers by two glass plates that have been released from the mold, and the metal halide lamp (12mW / cm 2 ) for 3 minutes, the cured film was peeled off from the glass plate. A cured film having a thickness of 0.25 mm (a sample for measuring the refractive index of a cured product) was prepared by the above procedure.

[0111] In addition, a high refractive index thiourethane resin substrate (nd = 1.667) was used instead of a glass plate, and it was sandwiched and cured with a spacer of 0.05 mm of a curable composition. method to prepare sampl...

Embodiment 2～5

[0114] Except having changed the kind and input amount of A component, B component, and C component to the content shown in following Table 1, it carried out similarly to Example 1, and produced the curable composition and the cured film. The physical properties of the curable composition and cured film (cured product) are shown in Table 1 below.

Embodiment 6～9

[0116] Change the type and input amount of A component, B component, C component, E component, G component, and H component to the content shown in the following Table 1, and perform stirring and mixing under anaerobic conditions at 40°C. Except that, preparation of a curable composition and a cured film was performed in the same manner as in Example 1. The physical properties of the curable composition and cured film (cured product) are shown in Table 1 below.

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Abstract

According to the present invention, there is provided a curable composition comprising: a poly(meth)acrylate compound (component A) having a fluorene ring, a polythiol compound (component B) having a thioalkyl structure, Polycyclic aromatic hydrocarbon skeleton olefinic compound (C component) and polymerization initiator (D component). The curable composition of the present invention is particularly useful as an optical adhesive, has a high refractive index as an optical characteristic, and has properties such as low shrinkage, photocurability, colorless transparency, and viscosity suitable for work.

Description

technical field [0001] The present invention relates to a curable composition, and further relates to an optical adhesive used when producing a composite optical element. Background technique [0002] A photocurable composition containing an acrylate compound or the like as a main component is widely used as an adhesive when producing an optical element. Adhesiveness, curability, mechanical strength, durability, and optical properties are basic performances of adhesives, but in recent years, the refractive index has become an important performance as optical elements become more functional. In particular, the increase in the refractive index of adhesives is expected to be high due to the expansion of the degree of freedom in optical design. Examples of applications using an adhesive having a high refractive index include an achromat lens formed by bonding two lenses, and a hybrid lens formed by combining glass and resin. Spherical lenses, dichroic prisms, and other prisms ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G75/045C09J4/00C09J4/02C09J11/06
CPCC09J4/00C09J11/06C08G75/045C08F222/102C08K5/32C09J181/02
Inventor 並木康佑布施佐和子冈崎仁舆石英二古川喜久夫堀越裕
Owner MITSUBISHI GAS CHEM CO INC