Photocurable resin composition, sealing agent for organic el display elements, organic el display element, sealing agent for quantum dot devices, and quantum dot device
A technology of photocurable resin and composition, applied in the direction of electrical components, electrical solid devices, chemical instruments and methods, etc., can solve the problems of damage to organic EL display components, difficult quantum dots and moisture isolation, etc., and achieve excellent barrier properties , Excellent storage stability, excellent adhesive effect
Active Publication Date: 2019-06-25
SEKISUI CHEM CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, the conventional sealant disclosed in Patent Document 2 has the following problems: solvent dilution is required at the time of coating, and the organic EL display is easily caused by the solvent itself and the heating in the drying process for removing the solvent after coating. component damage
However, in conventional sealing using a barrier film, it is difficult to sufficiently isolate quantum dots from moisture etc.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1～17、 comparative example 1～11
[0129] In accordance with the compounding ratios described in Tables 1 to 3, each material was stirred and mixed at a stirring speed of 2000 rpm using a stirring mixer (manufactured by THINKY, "AR-250"), and then further mixed using a three-roll mill (manufactured by NORITAKE, Inc., "NR-42A") was kneaded to prepare the photocurable resin compositions of Examples 1-17 and Comparative Examples 1-11.
[0130] Tables 1-3 show the viscosities measured on conditions of 25° C. and 2.5 rpm using an E-type viscometer (manufactured by Toki Sangyo Co., Ltd., “VISCOMETER TV-22”) about each obtained photocurable resin composition.
[0131]
[0132] The following evaluation was performed about each photocurable resin composition obtained in the Example and the comparative example. The results are shown in Tables 1-3.
[0133] (storage stability (phase separation))
[0134] Each of the photocurable resin compositions obtained in Examples and Comparative Examples was applied to a thicknes...
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Abstract
One purpose of the present invention is to provide a photocurable resin composition which has excellent storage stability, coatability, adhesiveness and barrier properties. Another purpose of the present invention is to provide: a sealing agent for organic EL display elements and a sealing agent for quantum dot devices, which are formed from this photocurable resin composition; an organic EL display element which is obtained using this sealing agent for organic EL display elements; and a quantum dot device which is obtained using this sealing agent for quantum dot devices. The present invention is a photocurable resin composition which contains a polymer that has a repeating unit represented by formula (1) in the main chain, while having a weight average molecular weight of from 5,000 to 100,000 (inclusive), a monomer that has an alicyclic skeleton and a (meth)acryloyl group, a radical photopolymerization initiator and a water absorbent filler, while containing no solvent, wherein thecontent of the monomer that has an alicyclic skeleton and a (meth)acryloyl group is from 30 parts by weight to 90 parts by weight (inclusive) and the content of the water absorbent filler is from 5 parts by weight to 200 parts by weight (inclusive) relative to 100 parts by weight of the total of the polymer that has a repeating unit represented by formula (1) in the main chain, while having a weight average molecular weight of from 5,000 to 100,000 (inclusive) and the monomer that has an alicyclic skeleton and a (meth)acryloyl group; and the viscosity thereof as determined using an E-type viscometer at 25 DEG C at 2.5 rpm is from 1 Pa*s to 1,000 Pa*s (inclusive).
Description
technical field [0001] The present invention relates to a photocurable resin composition excellent in storage stability, coatability, adhesiveness and barrier properties. Furthermore, the present invention relates to a sealant for organic EL display elements and a sealant for quantum dot devices containing the photocurable resin composition, an organic EL display element produced using the sealant for organic EL display elements, and an organic EL display element using the photocurable resin composition. Quantum dot devices made of quantum dot devices using encapsulants. Background technique [0002] An organic electroluminescent (hereinafter also referred to as "organic EL") display element has a laminate structure in which an organic light-emitting material layer is sandwiched between a pair of electrodes facing each other, and electrons are injected from one electrode into the organic light-emitting material layer. At the same time, holes are injected from the other elec...
Claims
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IPC IPC(8): C08F2/50C08K3/22C08K3/34C08K3/36C08K5/10C08L23/20H01L51/50H05B33/04
CPCC08F255/10C08F2/50C08F2/44C08K3/22C08K3/36C08K3/34C09K3/10H05B33/04G09F9/30C08K2003/2206C08F220/1811C08F222/102C08K5/10C08L23/20C08F220/18C08K2201/005H10K50/115H10K50/8426H10K59/00
Inventor 末崎穣渡边康雄武知真理子
Owner SEKISUI CHEM CO LTD