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Active energy ray curable composition and hard coat film

An active energy ray, curable composition technology, applied in the direction of coating, etc., can solve the problems of reduced yield, adhesion (decreased light resistance adhesion, insufficient scratch resistance on the surface of the cured coating film, etc.) The effect of high scratch resistance

Active Publication Date: 2021-11-09
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can improve the adhesion between the surface of the cyclic olefin resin film base material and the hard coat layer, but there are the following problems: the process of applying and drying the primer layer is added, thereby reducing the yield and increasing the cost.
However, if the ratio of (meth)acrylate having an alicyclic structure is increased, the crosslinking density of the cured coating film decreases, and there is a problem that the scratch resistance of the surface of the cured coating film is insufficient.
[0006] Furthermore, the adhesiveness (initial adhesiveness) is high immediately after the cured coating film of the active energy ray-curable composition is formed on the surface of the cyclic olefin resin film base material, but when it is exposed to strong light thereafter, the adhesiveness becomes weaker. Decrease in adhesiveness (light-resistant adhesiveness) becomes a problem

Method used

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  • Active energy ray curable composition and hard coat film
  • Active energy ray curable composition and hard coat film
  • Active energy ray curable composition and hard coat film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] 100 Parts by mass, silica fine particles ("MEK-ST40" manufactured by Nissan Chemical Industries, Ltd., average particle diameter 10-20nm, 40 mass% methyl ethyl ketone dispersion of organic silica sol (colloidal silica)) 26 mass parts ( Calculated as silica particles), hindered amine light stabilizer with methacryloyl group ("ADK STAB (registered trademark) LA-87" manufactured by ADEKA Co., Ltd.; 2,2,6,6-tetramethyl-4 -piperidinyl methacrylate) 0.5 parts by mass, 1-hydroxycyclohexyl phenyl ketone ("IRGACURE (registered trademark) 184" manufactured by BASF Japan Co., Ltd.) 6 parts by mass, methyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd. Kogyo Co., Ltd. product "KBM-13") 20 mass parts was uniformly stirred, and diluted with methyl ethyl ketone, and the active energy ray curable composition (1) whose nonvolatile matter was 40 mass % was prepared.

Embodiment 2

[0071] Except having changed the compounding quantity of ADK STAB LA-87 into 0.1 mass part from 0.5 mass part, it carried out similarly to Example 1, and prepared the active energy ray curable composition (2).

Embodiment 3

[0073] Except having changed the compounding quantity of ADK STAB LA-87 into 1 mass part from 0.5 mass part, it carried out similarly to Example 1, and prepared the active energy ray curable composition (3).

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Abstract

The present invention provides an active energy ray-curable composition characterized by comprising: an active energy ray-curable compound (A); a hindered amine light stabilizer (B) selected from hindered amines having a polymerizable functional group; At least one type selected from the group consisting of a light stabilizer (B1) and a hindered amine light stabilizer (B2) having a hindered phenol group; and a silane coupling agent (c-1), (meth)acrylic One or more compounds (C) from the group consisting of an amide compound (c-2) and a polymerizable monomer (c-3) having a tricyclodecane structure. In addition, the present invention provides a hard coat film characterized by having a cured coating film of the active energy ray-curable composition on at least one surface of a cyclic olefin resin film substrate.

Description

technical field [0001] The present invention relates to an active energy ray curable composition and a hard coat film. Background technique [0002] Cyclic olefin resin films are excellent in transparency, low birefringence, low moisture absorption, heat resistance, electrical insulation, chemical resistance, etc., and are widely used in optical components, medical care, packaging films, automobiles, semiconductor applications, etc. . Especially in optical components, with the diversification of units used in liquid crystal displays and touch panels, the use of cyclic olefin resin films with high transparency and low hygroscopicity is being studied instead of polyethylene terephthalate used in the past. Polyethylene glycol ester (PET), triacetate cellulose (TAC) and other plastic films. [0003] In addition, since the surface hardness of the cyclic olefin resin film is insufficient, there is a fear of scratches during processing. In order to improve wear resistance and scr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/50C08F2/44C08J7/04C08J7/046C08L45/00C08J7/043
CPCC08F2/44C08F2/50C08J7/043C08J7/046
Inventor 久野友梨亚麸山解奥村彰朗
Owner DIC CORP
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