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Resin Composition for Sealing

A resin composition and sealing technology, applied in other chemical processes, chemical instruments and methods, electroluminescent light sources, etc., can solve the problems of organic EL element degradation and poor efficiency

Active Publication Date: 2020-09-01
AJINOMOTO CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the other hand, there is a problem that the organic EL element deteriorates due to the heating temperature at the time of thermosetting
In addition, in the conventional can sealing structure, since light is shielded by a getter agent layer incorporated into the sealed space for the purpose of dehydration, there is a disadvantage that the efficiency of extracting light from the sealing surface side is poor, but the resin In the structure where the composition is fully sealed, the advantage of being able to emit light from the sealing surface side with good efficiency can be cited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0193] Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples. In addition, in the following description, "part" and "%" in the quantity of a component and a copolymerization unit mean "parts by mass" and "% by mass", respectively, unless it is specifically limited.

[0194] Raw materials used in Examples and Comparative Examples are as follows.

[0195] (A) Polyolefin resin

[0196] ・T-YP429 (manufactured by Starlight PMC): maleic anhydride modified ethylene-methyl methacrylate copolymer (ethylene unit / methyl methacrylate unit=68% / 32%, acid anhydride group concentration: 0.46mmol / g , number average molecular weight: 2,300)

[0197] ・T-YP431 (manufactured by Starlight PMC): glycidyl methacrylate modified ethylene-methyl methacrylate copolymer (epoxy group concentration: 0.64 mmol / g, number average molecular weight: 2,400)

[0198] ・T-YP430 (manufactured by Starlight PMC): maleic anhydride modified ethylene-me...

Embodiment 2

[0227] Except having changed the usage-amount of the semi-fired hydrotalcite (DHT-4C) into 80 parts from 100 parts, the varnish of a resin composition, and the sheet|seat for sealing were produced by the method similar to Example 1.

Embodiment 3

[0229] Instead of semi-fired hydrotalcite (DHT-4C), the same amount of semi-fired hydrotalcite (DHT-4A-2) was used, except that, by the same method as in Example 1, the varnish and varnish of the resin composition were produced. Sealing sheet.

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Abstract

The present invention provides a sealing resin composition comprising (A) a polyolefin-based resin, and (B) a metal hydroxide selected from hydrotalcite and semi-fired hydrotalcite.

Description

technical field [0001] The present invention relates to a resin composition for sealing, and particularly relates to a resin composition for sealing that can be suitably used for sealing organic EL elements and the like. Background technique [0002] An organic EL (Electroluminescence, electroluminescence) element is a light-emitting element using an organic substance as a light-emitting material, and is a material that has attracted attention in recent years and can obtain high-intensity light emission at a low voltage. However, the organic EL element is extremely weak to moisture, and the organic material itself is degraded by moisture, resulting in a decrease in brightness, no light emission, peeling of the interface between the electrode and the organic EL layer due to the influence of moisture, or high resistance due to metal oxidation. [0003] When a thermosetting resin composition is used as a full sealing material, the lamination work is easy because the viscosity o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/10C08K3/26C08L23/00C08L23/26H01L51/50H05B33/04
CPCC08K3/26C09K3/10C08L23/00C08L23/26H05B33/04H10K50/00C08L101/06C09J201/06C09J2301/302H10K50/844
Inventor 本间达也高濑舞中岛聪增山学山本有希
Owner AJINOMOTO CO INC
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