Resin composition, and cured product (2) thereof

A resin composition and compound technology, applied in the direction of electrical solid devices, coatings, electrical components, etc., can solve the problems of reduced extraction efficiency, difficulty in obtaining reliability and productivity, and inability to extract, and achieve high Tg and visible light transmittance And excellent light resistance, curing shrinkage rate and low water vapor transmission rate

Inactive Publication Date: 2015-08-05
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the glass sealing cover is produced by drilling a hole for inserting the desiccant into the flat glass substrate, the cost tends to increase.
In addition, when sealing with a sealing cap, since a desiccant is inserted inside the sealing cap, light cannot be extracted from the sealing cap side.
That is, the extraction of light emitted from the light source from the substrate side of the element is limited to bottom emission type elements
In the case of a bottom emission type element, there are proble

Method used

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  • Resin composition, and cured product (2) thereof
  • Resin composition, and cured product (2) thereof
  • Resin composition, and cured product (2) thereof

Examples

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Embodiment

[0234] Next, the present invention will be described in more detail by way of examples. The present invention is not limited in any way by the following examples. In addition, the unit "part" of a numerical value represents a mass part.

[0235] The resin composition of the present invention, the resin composition of Comparative Example 1, and the resin composition of Reference Example 1 having the compositions shown in Table 1 below were produced, and cured products of each resin composition were obtained by the following method. The obtained resin composition and cured product (cured film) were evaluated by the following evaluation methods and evaluation criteria.

[0236] (1) Viscosity: Using an E-type viscometer (TV-200: manufactured by Toki Sangyo Co., Ltd.), the viscosity (unit: mPa·s) at 25° C. of each resin composition described in Table 1 below was measured.

[0237] (2) Liquid refractive index: The refractive index (25 degreeC) of each resin composition described i...

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Abstract

The present invention relates to a resin composition for sealing a surface of an organic electroluminescent (EL) element, said resin composition including: an alicyclic compound (A) having an oxetanyl group or an epoxy group; and a cyclic compound (B) which has an oxetanyl group or an epoxy group, and which satisfies the following condition (condition for cyclic compound (B): that the ring in cyclic compound (B) be either an aliphatic ring or a heterocycle, and in cases when the ring is an aliphatic ring, that the cyclic compound have a structure different to that of the compound used as alicyclic compound (A)). This resin composition for sealing a surface of an organic EL element exhibits an excellent liquid refractive index, and is cured by heat or energy rays such as light to obtain a cured product exhibiting excellent visible light transmission, excellent light resistance, a high Tg, low cure shrinkage, and a low water vapour transmission rate, and thus is particularly suitable as a surface sealant for an organic EL element.

Description

Background technique [0001] Recently, low moisture permeability materials are important materials in various industries. Especially in the electrical, electronic and display peripheral industries, it is an essential material to maintain quality, and a higher-performance low-moisture-permeability material is desired. [0002] In recent years, among displays, a thin display called a flat panel display (FPD), especially a plasma display (PDP) and a liquid crystal display (LCD) have been put into the market and widely used. In addition, organic electroluminescent (EL) displays (OLEDs) are expected to be put into practical use in some products as next-generation self-luminous thin-film displays. An organic EL element of an organic EL display has a structure in which an element part main body including a thin film laminate including a light-emitting layer sandwiched between a cathode and an anode is formed on a substrate such as glass on which a driving circuit such as a TFT is for...

Claims

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Application Information

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IPC IPC(8): C08G59/22C08G59/46C08G65/18C08J7/04H01L51/50H05B33/04
CPCC08J7/04C08G59/46H01L2251/5315H01L51/5246H01L2251/5369C08G65/18C08G59/22C08G59/68C09D163/00C09D171/02H10K2102/331H10K2102/3026H10K59/8722C08L63/00C08L71/10
Inventor 内藤伸彦木户场润松尾雄一朗
Owner NIPPON KAYAKU CO LTD
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