Photocurable resin composition and image display device production method

一种光固化性树脂、图像显示装置的技术，应用在光固化性树脂组合物领域，能够解决保存稳定性降低、投资膨大等问题，达到改善形状维持性的效果

Active Publication Date: 2016-02-03
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, according to the technology of Patent Document 2, it can be expected to solve the problem of Patent Document 1, but it is necessary to use a thermal polymerization initiator in combination with a photopolymerization initiator at the same time. In addition to the photopolymerization process, the thermal polymerization process Since it is applied to the entire image display device, there are problems that the equipment investment for both the ultraviolet polymerization process and the thermal polymerization process becomes large, and the storage stability of the thermal and photocurable resin composition decreases.

Method used

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  • Photocurable resin composition and image display device production method
  • Photocurable resin composition and image display device production method
  • Photocurable resin composition and image display device production method

Examples

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Embodiment 1~6

[0104] Embodiment 1~6, comparative example 1~4

[0105] The (meth)acrylate oligomer component, (meth)acrylate alkyl ester monomer component, plasticizer component (solid tackifier and liquid plasticizer component) in the compounding amount (parts by mass) shown in Table 1 ) and a photopolymerization initiator component are uniformly mixed to prepare a photocurable resin composition.

[0106] Next, this photocurable resin composition was sprayed over the entire surface of the glass plate using a slit resin dispenser to form a photocurable resin composition film with an average thickness of 200 μm.

[0107] Next, with respect to this photocurable resin composition film, an ultraviolet irradiation device (UVL-7000M4-N, manufactured by USHIOINC) was used so that the cumulative light intensity became 1000mJ / cm 2 、2500mJ / cm 2 、5000mJ / cm 2 or 7500mJ / cm 2 In the way of changing the irradiation time, the irradiation intensity is 200mW / cm 2 The ultraviolet rays are used to cure the...

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Abstract

In the present invention, a liquid photocurable resin composition contains a (meth)acrylate oligomer component, an alkyl (meth)acrylate monomer component and a photopolymerization initiator component. The (meth)acrylate oligomer component contains at least one type of oligomer selected from among the group consisting of a polyurethane (meth)acrylate oligomer, a polyisoprene (meth)acrylate oligomer, a polybutadiene (meth)acrylate oligomer and a polyether (meth)acrylate oligomer, each of which has a weight average molecular weight of 1,000-200,000. The photopolymerization initiator contains a molecular cleavage type photoradical polymerization initiator and a hydrogen abstraction type photoradical polymerization initiator at a mass ratio of 10:1 to 10:35. A photoradical polymerization-cured resin of the photocurable resin composition has a glass transition temperature of -40 DEG C to 20 DEG C if cured in such a way that the outermost surface has a curing rate in excess of 90%.

Description

technical field [0001] The present invention relates to a photocurable resin composition, and an image display member such as a liquid crystal display panel, and a light-transmitting cover member such as a transparent protective sheet arranged on the surface side thereof by bonding or laminating them through a light-transmitting cured resin layer. A method for an image display device. Background technique [0002] Image display devices such as liquid crystal display panels used in information terminals such as smartphones are produced by disposing a photocurable resin composition between an image display member such as a liquid crystal display panel or an organic EL panel and a light-transmitting cover member, and then The composition is cured by irradiating ultraviolet rays to form a light-transmitting cured resin layer, thereby bonding or laminating the image display member and the light-transmitting cover member (Patent Document 1). [0003] However, a light-shielding la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/02G09F9/00
CPCC08F290/048C08F290/062C08F290/067C08F220/10C08F290/02C08F2/50C09D4/00G03F7/0005G03F7/028G03F7/2002
Inventor 岩田瑞生植松武川端和人林直树
Owner DEXERIALS CORP
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