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Hard coat agent composition and hard coat film using the same

A technology of hard coating and composition, applied in the field of hard coating objects and hard coating films, can solve the problem that the antifouling effect cannot be expected, and achieve excellent punching processability, excellent wear resistance, and scratch resistance. Excellent effect

Inactive Publication Date: 2013-05-15
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this hard coat is only intended to improve scratch resistance, it cannot expect an antifouling effect on dust, oil mist in the atmosphere, or pollutants such as fingerprint stains.

Method used

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  • Hard coat agent composition and hard coat film using the same
  • Hard coat agent composition and hard coat film using the same
  • Hard coat agent composition and hard coat film using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0151] As the transparent substrate, a polyethylene terephthalate (PET) film (trade name: COSMOSHINE A-4300, manufactured by Toyobo Co., Ltd.) having a thickness of 75 μm was used.

[0152] (Composition of hard coat agent)

[0153] Component A: 80 parts by weight of dipentaerythritol hexaacrylate

[0154] Component B: 20 ​​parts by weight of urethane acrylate PET-HDI-PET

[0155] Component C: 0.05 parts by weight of the above-mentioned fluorinated urethane acrylate

[0156] Component D: 0.02 parts by weight of the above-mentioned fluorinated urethane acrylate 3

[0157] 100 parts by weight of propylene glycol monomethyl ether acetate

[0158] (non-reactive diluent)

[0159] Photopolymerization initiator (1-hydroxycyclohexyl phenyl ketone) 5 parts by weight

[0160] On the surface of the above-mentioned transparent substrate, apply the above-mentioned ultraviolet / electron beam curing type hard coating agent as a coating film by spin coating, and remove the internal impurit...

Embodiment 2

[0162] In addition to using a further reactive group containing 30 parts by weight to modify the silica sol E component (dispersion medium: propylene glycol monomethyl ether acetate, non-volatile components: 40% by weight, with γ-methacryloxypropyl trimethoxy A hard coat layer having a thickness of 10 μm after curing was formed in the same manner as in Example 1, except that silica fine particles were surface-modified with base silane.

[0163] (Composition of hard coat agent)

[0164] Component A: 80 parts by weight of dipentaerythritol hexaacrylate

[0165]Component B: 20 ​​parts by weight of urethane acrylate PET-HDI-PET

[0166] Component C: 0.05 parts by weight of the above-mentioned fluorinated urethane acrylate

[0167] Component D: 0.02 parts by weight of the above-mentioned fluorinated urethane acrylate 3

[0168] E component: Reactive group modified silica sol (dispersion medium: propylene glycol monomethyl ether acetate, non-volatile content: 40% by weight, surfa...

Embodiment 3~10

[0173] As shown in Table 1, a hard coat layer having a thickness of 10 μm after curing was formed in the same manner as in Example 1, except that a hard coat agent having a different compounding composition of components C, D, and E was used.

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Abstract

The present invention relates to a hard coat agent composition useful in forming on a surface of various articles a hard coat layer excellent in transparency, anti-staining property, lubricating property, solvent resistance, scratch resistance and abrasion resistance, as well as in punchability. The hard coat agent composition comprises a urethane acrylate (B) having two or more (meth)acryloyl groups within each molecule and not containing fluorine; a first fluorine-containing polyether compound (C) having an active energy ray reactive group via a urethane bond at each of both ends of a molecular chain containing a perfluoropolyether group; a second fluorine-containing polyether compound (D) having an active energy ray reactive group via a urethane bond at one end of a molecular chain containing a perfluoropolyether group and not having an active energy ray reactive group at the other end; and a curable compound (A) having two, or three or more active energy ray polymerizing groups within each molecule and not containing a urethane bond and fluorine, wherein the (C) component is contained in an amount of 0.05 to 0.7 parts by weight in relation to 100 parts by weight of a total amount of the (A) component and the (B) component, and the (D) component is contained so that a weight ratio C / D between the (C) component and the (D) component ranges from 1 / 5 to 5 / 2.

Description

technical field [0001] The present invention relates to useful for forming a hard coat layer excellent in transparency, antifouling properties, lubricity, solvent resistance, scratch resistance and abrasion resistance, and also excellent in punching processability on the surface of various objects Hardcoat composition. [0002] Moreover, this invention relates to the object which has the hard-coat layer formed using the said hard-coat agent composition on the surface. Objects that require hard coating on the surface include optical information media, optical lenses, filters, antireflection films, and various display elements such as touch panels, liquid crystal displays, CRT displays, plasma displays, and EL displays. [0003] In particular, the present invention relates to a hard coat film having a hard coat layer formed using the hard coat agent composition on the surface of a transparent substrate. The hard coat film is used to protect, for example, the surface of various...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12
CPCC08F2222/1026C08K5/5419C09D133/06C09D4/06B32B27/00C08K7/00B82Y30/00C08F2222/1086Y10T428/3154C08F222/1065C08F222/103
Inventor 山田千惠子田中和志
Owner TDK CORPARATION
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