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Sealing composition

A technology for sealing and composition, which is applied in the direction of electrical components, circuits, electroluminescent light sources, etc., and can solve problems such as deterioration of organic EL components

Active Publication Date: 2016-05-04
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, crown ethers and polyethers have the problem of decomposing in the presence of cations to generate outgassing, and deteriorating organic EL elements due to the outgassing

Method used

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  • Sealing composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0232] Put 60 parts by weight of compound (a-1), 40 parts by weight of compound (d-1), 2 parts by weight of photocationic polymerization initiator (b-1) and 0.4 parts by weight of curing retarder (c-1) into the rotation and revolution mixing (trade name "Awa-toriRentaro (あわとり入太郎) ARE-310", manufactured by Thinky Co., Ltd.) and stirred to obtain a sealing composition (1) (viscosity: 265 mPa·s).

[0233] The obtained sealing composition (1) was coated on a glass substrate to form a coating film (1) (thickness: 100 μm), and ultraviolet rays were irradiated with a mercury lamp (irradiation amount: 1600 mJ / cm 2 ).

[0234] The viscosity immediately after ultraviolet irradiation was 892 mPa·s, and the viscosity 30 minutes after ultraviolet irradiation was 4540 mPa·s.

[0235] Then, the coating film (1) after ultraviolet irradiation was heated at 100°C for 1 hour to obtain a cured product (1) having a curing degree of 50% or more.

[0236] With respect to the obtained cured product...

Embodiment 2～10、 comparative example 1～5

[0238] Except having changed the formulation as shown in the following table, it carried out similarly to Example 1, obtained the composition for sealing, obtained the coating film, and obtained the hardened|cured material (hardening degree 50% or more).

[0239] With respect to the obtained cured product, the gas discharge rate and water vapor permeability were evaluated by the following methods.

[0240]

[0241] The exhaust gas (unit: ppm) derived from the curing retarder of the cured products obtained in Examples and Comparative Examples was measured as follows: 60 mg of cured products were added to a vial, and UV irradiation (2000 mJ / cm 2 ), and left to stand at 100° C. for 1 hour, and then measured the exhaust volume in the vial. Here, a calibration curve was prepared using a toluene standard solution [toluene as a standard substance: 100 ppm, solvent: hexane (60 mg)]. In addition, as a measurement device, a product name "HP-6890N" (manufactured by Hewlett-Packard Co....

Embodiment 11

[0246] (Manufacture of conductive fiber-coated particles)

[0247] Particulate matter (plastic particles, trade name "TechpolymerSM10X-8JH", methyl methacrylate styrene copolymer, manufactured by Sekisui Chemical Co., Ltd., 10% compressive strength: 2.5kgf / mm 2 , average particle diameter 8.3 μm, refractive index: 1.565) 0.15 parts by weight and 29.15 parts by weight of 2-butanol were mixed to prepare a dispersion of particulate matter.

[0248] 5.22 parts by weight of a dispersion of silver nanowires (manufactured by Aldrich, average length: 20-50 μm, average diameter: 115 nm) (0.15 parts by weight of silver nanowires) was mixed with the dispersion of the obtained particulate matter, and then filtered through The solvent was removed to obtain conductive fiber-coated particles (1) [the surface area (total surface area) of the plastic particles / projected area (total projected area) of the silver nanowires was calculated, and the result was about 100 / 15].

[0249] The obtained ...

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PUM

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Abstract

Provided is a composition for organic EL element sealing, which is capable of efficiently sealing an organic EL element with a cured product having moisture-proof properties and low outgas properties without exposing the organic EL element directly to UV. A composition for organic EL element sealing according to the present invention contains the following component (A), component (B) and component (C). Component (A): a cationically curable compound which has one or more groups selected from among an alicyclic epoxy group, an oxetane ring-containing group, an episulfide group and a vinyl ether group in an amount of two or more groups in each molecule Component (B): a cationic photopolymerization initiator Component (C): an azole compound

Description

technical field [0001] The present invention relates to a sealing composition capable of sealing an organic EL element without damaging it and protecting the organic EL element from deterioration due to moisture. This application claims priority based on Japanese Patent Application No. 2014-010770 for which it applied in Japan on January 23, 2014, and uses the content here. Background technique [0002] An organic electroluminescence (hereinafter also referred to as "organic EL") element consists of a structure in which a light-emitting layer is sandwiched between a pair of opposing electrodes. Electrons are injected from one electrode and holes are injected from the other electrode. . The injected electrons and holes emit light when recombined in the light emitting layer. An organic EL device including the above-mentioned organic EL element is expected to be a full-color flat panel display or an LED-substituting device because of its high impact resistance, visibility, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/04H01L51/50H05B33/10
CPCH10K50/844
Inventor 江川智哉
Owner DAICEL CHEM IND LTD
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