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Curable epoxy resin composition

A technology of epoxy resin and composition, applied in the direction of electric solid devices, instruments, electrical components, etc., can solve the problems of yellowing over time, unable to maintain light reflectivity, etc. sexual effect

Inactive Publication Date: 2014-03-19
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] However, reflectors made of the above-mentioned polyamide resins described in Patent Documents 1 to 3, especially light-emitting devices using high-output blue semiconductors or white semiconductors as light sources, have the following problems: the light or heat emitted from the optical semiconductor element Causes deterioration such as yellowing over time, and cannot maintain sufficient light reflectivity

Method used

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  • Curable epoxy resin composition
  • Curable epoxy resin composition
  • Curable epoxy resin composition

Examples

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preparation example Construction

[0281]

[0282] It does not specifically limit as a manufacturing method of the curable epoxy resin composition of this invention, A well-known and usual method can be applied. Specifically, for example, a given amount of alicyclic epoxy compound (A), monoallyl diglycidyl isocyanurate compound (B), white pigment (C), curing agent (D ), curing accelerator (F) and any additives, or a given amount of cycloaliphatic epoxy compound (A), monoallyl diglycidyl isocyanurate compound (B), white pigment (C ), curing catalyst (E) and optional additives, and using various mixers such as dissolving rods and homogenizers, kneaders, rollers, bead mills, self-rotating and revolving stirring devices, etc. to stir and mix. In addition, after stirring and mixing, defoaming may be performed under reduced pressure or vacuum.

[0283] More specifically, the curable epoxy resin composition of the present invention can be prepared, for example, by the following method: separately prepare Compound ...

manufacture example 1

[0303] (Manufacture of white pigment-containing epoxy resin: Examples 1-9)

[0304] Monoallyl diglycidyl isocyanurate (manufactured by Shikoku Chemical Industry Co., Ltd., trade name "MA-DGIC"), An alicyclic epoxy compound (manufactured by Daicel, trade name "CELLOXIDE 2021P") was mixed and stirred at 80°C for 1 hour to dissolve monoallyl diglycidyl isocyanurate to obtain a cycloaliphatic epoxy compound. Oxygen resin (mixture). Next, according to the compounding recipe (mixing ratio) (unit: parts by weight) shown in Table 1, the above-mentioned epoxy resin and white pigment (titanium oxide; manufactured by Seika Kogyo Co., Ltd., trade name "TCR-52") were mixed using a dissolving rod. ”) were uniformly mixed, and kneaded using a roller mill under given conditions (roll distance: 0.2 mm, rotational speed: 25 Hz, 3 paths) to obtain an epoxy resin (epoxy resin composition) containing a white pigment.

manufacture example 2

[0306] (Manufacture of white pigment-containing epoxy resin: Comparative Examples 1 to 8)

[0307] Alicyclic epoxy compound (trade name "CELLOXIDE2021P", manufactured by Daicel; trade name "EHPE3150", manufactured by Daicel) according to the formula (mixing ratio) (unit: parts by weight) shown in Table 1 manufactured), triglycidyl isocyanurate (trade name "TEPIC-PAS B26", manufactured by Nissan Chemical Industry Co., Ltd.) to obtain epoxy resin (mixture) (in comparative examples 1, 2, 4 to In the case of 6 and 8, since the epoxy resin component is one kind, this mixing is not performed, and it is used as an epoxy resin as it is). Next, according to the compounding recipe (mixing ratio) (unit: parts by weight) shown in Table 1, the above-mentioned epoxy resin and white pigment (titanium oxide; trade name "TCR-52", Kai Chemical Industry Co., Ltd. system) were uniformly mixed and kneaded using a roller mill under given conditions (roll distance: 0.2mm, rotational speed: 25 Hz, 3...

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Abstract

Provided is a curable epoxy resin composition which can be cured into a cured product that has high light reflectivity, excellent heat resistance and light resistance and high stiffness and rarely undergoes the deterioration in light reflectivity over time. This curable epoxy resin composition is: a curable epoxy resin composition characterized by comprising an alicyclic epoxy compound (A), a monoallyl diglycidyl isocyanurate compound (B) represented by formula (1), a white pigment (C), a curing agent (D) and a curing accelerator (F); or a curable epoxy resin composition characterized by comprising an alicyclic epoxy compound (A), a monoallyl diglycidyl isocyanurate compound (B) represented by formula (1), a white pigment (C) and a curing catalyst (E). [In the formula, R1 and R2 independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms.]

Description

technical field [0001] The present invention relates to a curable epoxy resin composition, a cured product obtained by curing the curable epoxy resin composition, a curable resin composition for light reflection composed of the curable epoxy resin composition, and at least An optical semiconductor device comprising an optical semiconductor element and a reflector formed of the cured product. Background technique [0002] In recent years, light emitting devices using optical semiconductor elements (LED elements) as light sources have been gradually adopted in various indoor or outdoor display panels, light sources for image reading, traffic signals, units for large displays, and the like. Such a light-emitting device generally has an optical semiconductor element and a transparent resin protecting the periphery of the optical semiconductor element, and further has a reflector ( Reflective materials) light-emitting devices are being widely used. [0003] The above-mentioned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08G59/26C08L21/00C08L53/00C08L67/00C08L83/06G02B5/26H01L33/60
CPCH01L33/60C08L53/00C08L83/06C08K5/34924C08K5/0025C08G59/42C08L63/00C08G59/226H01L2224/48091H01L2924/00014C08G59/26C08L21/00C08L67/00G02B5/26
Inventor 铃木弘世
Owner DAICEL CHEM IND LTD
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