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Hard coating film

A hard coating film and hard coating technology, applied in the direction of coatings, devices for coating liquid on the surface, instruments, etc., can solve problems such as insufficient hardness, and achieve the effect of small curling

Active Publication Date: 2012-11-21
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this technology, the hardness of the cured product of the aforementioned isocyanurate derivative monomer is insufficient, so there is still room for further improvement in the hardness of the hard coat formed by curing the composition.

Method used

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  • Hard coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Using a bar coater, the coating liquids A to G prepared in Preparation Examples 1 to 7 were coated on a 40 μm thick triacetyl cellulose film (manufactured by Fuji Photo Film Co., Ltd., trade name "T40UZ") as a base film , And make the thickness after drying 3μm. After drying at 70℃ for 1 minute, irradiate ultraviolet rays to the coated surface, and the amount of irradiation light is 230mJ / cm 2 , Curing, manufacturing hard coating film. The thickness of the hard coat layer is 3 μm.

[0081] Table 1 shows the performance evaluation results of each hard coat film.

Embodiment 2

[0083] Except that in Example 1, coating was performed so that the thickness after drying was 6 μm, various hard coating films were produced in the same manner as in Example 1. The thickness of the hard coat layer is 6 μm.

[0084] Table 1 shows the performance evaluation results of each hard coat film.

Embodiment 3

[0086] Except that in Example 1, coating was performed so that the thickness after drying was 10 μm, various hard coating films were produced in the same manner as in Example 1. The thickness of the hard coat layer is 10 μm.

[0087] Table 1 shows the performance evaluation results of each hard coat film.

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Abstract

The invention provides a hard coating film with enough surface hardness necessary for the surface protection films of all sorts of image display devices and small crimp due to curing and shrinking. The hard coating film has an active energy line curing resin layer formed on basis material film using hard coating layer forming material, and the hard coating layer forming material comprises (A)an active energy line curing compound with at least three ethene unsaturated groups in molecule and not the isocyanurate derivative; and 150-550 mass portions of compound (B), namely active energy line curing isocyanurate derivative containing at least three ethene unsaturated groups in molecule, relative to 100 mass portions of (A).

Description

Technical field [0001] The present invention relates to a hard coat film. More specifically, it relates to a hard coat film having sufficient surface hardness necessary as a surface protective film for various image display devices and having a small curl caused by curing shrinkage. Background technique [0002] At present, hard coat films are used for various image display devices, such as LCD (liquid crystal display), touch panel, CRT (cathode ray tube), PDP (plasma display), based on anti-glare and anti-reflection properties represented by surface protection. Panel), EL (Electroluminescence Element), etc. Moreover, it is also used in LCDs to protect polarizers. The hard coat film usually has a hard coat layer formed by heat curing, active energy ray curing, or the like on a base film. [0003] On the other hand, in recent years, there has been a demand for thinning of image display devices. In this case, it is desirable that the hard coat layer can use a base film having a th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B7/02B32B33/00C09D4/00B05D7/04B32B27/30C08F220/36C08J7/04C09D5/00C09D133/14
CPCC08F220/36C08J5/18C08J7/04C09D4/00G02B1/14
Inventor 富冈健太所司悟
Owner LINTEC CORP
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