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Photocurable Composition

A photocurable and composite technology, applied in optics, optomechanical equipment, nonlinear optics, etc., can solve the problems of liquid crystal display parts deformation, liquid crystal display is easy to produce strain, and material yield is low, and achieves the realization of fine lines. Easy to form, excellent in various characteristics, low light transmittance effect

Inactive Publication Date: 2014-07-16
CEMEDAINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in addition to the photocuring process, a thermal curing process is required, and the thermal curing process takes a long time.
In addition, the components of the liquid crystal display may include components deformed at about 70°C. In this case, there is a problem that the components of the liquid crystal display will be deformed in the thermal curing process of the photocurable resin composition.
[0006] In addition, in the method of using an adhesive film processed into a frame shape, there are the following problems: the punching width limit of the film is about 0.5mm, and there is a limit to high-density mounting. The film part, so the material yield is low
In addition, in the past, large-scale LCD monitors, such as those larger than 47 inches, had the problem of being prone to strain

Method used

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Examples

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Embodiment

[0248] The following examples are given to illustrate the present invention more concretely. It goes without saying that these examples are merely illustrations and should not be interpreted limitedly.

Synthetic example 1

[0250] Polymer B1 having an acryloyloxy group was synthesized by the atom transfer radical method described later.

[0251] 100 parts of n-butyl acrylate were deoxidized. Deoxidize the inside of the reaction vessel, add 0.42 parts of cuprous bromide, 20 parts of deoxygenated n-butyl acrylate, 4.4 parts of acetonitrile, and 1.8 parts of diethyl 2,5-dibromoadipate, and mix at 80°C , adding 0.018 parts of pentamethyldiethylenetriamine (hereinafter referred to simply as triamine) to initiate a polymerization reaction. The remaining 80 parts of n-butyl acrylate were added in portions to carry out a polymerization reaction. During the polymerization, triamine was appropriately added to adjust the polymerization rate, and the polymerization was carried out while adjusting the internal temperature to about 80°C to about 90°C. When the monomer conversion rate (polymerization reaction rate) is about 95% or more, introduce oxygen-nitrogen mixed gas into the gas phase part of the reacti...

Synthetic example 2

[0253] Poly(n-butyl acrylate) polymer A1 having a dimethoxysilyl group was synthesized by the atom transfer radical method described later.

[0254] Under a nitrogen atmosphere, CuBr (1.09kg), acetonitrile (11.4kg), butyl acrylate (26.0kg) and 2,5-dibromoadipate (2.28kg) were added to a 250L reactor. Stir at ~80°C for about 30 minutes. Pentamethyldiethylenetriamine was added thereto to initiate the reaction. Thirty minutes after the start of the reaction, butyl acrylate (104 kg) was continuously added over 2 hours. During the reaction process, pentamethyldiethylenetriamine was added appropriately to change the internal temperature to 70°C to 90°C. The total amount of pentamethyldiethylenetriamine used so far was 220 g. After 4 hours from the start of the reaction, volatile components were removed by heating and stirring at 80° C. under reduced pressure. Acetonitrile (45.7 kg), 1,7-octadiene (14.0 kg), and pentamethyldiethylenetriamine (439 g) were added thereto, and stirri...

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Abstract

The invention provides a photocurable composition, a cured object of the photocurable composition, an optical equipment component with the cured object, a set of optical equipment, and a manufacturing method of a display module with the photocurable composition. The photocurable composition has excellent thermal creep resistance, excellent operability, excellent durability and excellent binding performance. Furthermore thick film of the photocurable composition can be cured. The solution of the photocurable composition is characterized in that the photocurable composition comprises the components of: (A) a (methyl)acrylate series polymer with more than 0.8 crossed organosilyl in one molecule, (B) a composition of the (methyl)acrylate series group comprising the (methyl)acrylate series group represented by a general formula (1), (C) a curing catalyst, (F) an optical free radial and (I) a resin filler with an average particle diameter of 1-150 mu m. -OC(O)C(R1)=CH2...(1) (wherein in the general formula (1), R1 represents a hydrogen atom or an organic group with number of carbon atoms in 1-20.).

Description

technical field [0001] The present invention relates to a photocurable composition, a cured product of the photocurable composition, an optical device member containing the cured product, an optical device, and a method for producing a display module using the photocurable composition. The photocurable composition of the present invention can be suitably used as an optical device, particularly as a sealing agent for liquid crystal displays, for fixing optical material components such as liquid crystal panels, preventing backlight light leakage, and preventing external light from entering. Background technique [0002] In recent years, with the high performance of optoelectronic devices such as liquid crystal displays, optical lenses, optical pickups, and sensors, in order to achieve and maintain high sensitivity, it is necessary to transmit light from the outside that passes through members and fixing resin layers. , Light leakage from the inside, reduction of loss caused by...

Claims

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Application Information

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IPC IPC(8): G03F7/075G03F7/004G02F1/1333
Inventor 山家宏士冈村直实斋藤敦
Owner CEMEDAINE CO LTD
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