Hard coating composition and hardened membrane containing same

A composition and hard coating technology, applied in coatings, layered products, chemical instruments and methods, etc., can solve the problem of unsatisfactory adhesion of hard coating compositions, poor adhesion between hard coating and substrate surface, electrical Halo bottom layer or rubber bottom layer failure and other problems, to achieve the effect of improving adhesion, reducing internal stress, and good spreading

Active Publication Date: 2013-05-29
CHINA LUCKY FILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the surface of PET substrate is inert, the adhesion of general hard coat composition to its surface is not ideal, so people need to treat the surface of PET substrate with surface corona, coating adhesive primer, etc., to improve the hard coating. Adhesion of the layer composition on it
Although these measures can solve the problem of poor adhesion, they also increase the cost of the product, and, with the prolongation of product storage time, the corona primer or glue primer on the surface of the substrate is prone to failure, resulting in hard coating Poor re-adhesion of layer to substrate surface

Method used

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  • Hard coating composition and hardened membrane containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 21 parts of dipentaerythritol hexaacrylate,

[0047] 9 parts of hydroxyethyl acrylate,

[0048] Photoinitiator Irgacure 1173 3 parts,

[0049] 50 parts of methyl ethyl ketone,

[0050] 20 parts of isopropanol,

[0051] BYK-3500 0.1 parts,

[0052] To 21 parts of dipentaerythritol hexaacrylate resin (manufactured by Nippon Kayaku Co., Ltd.), add 9 parts of hydroxyethyl acrylate monomer (manufactured by Tianjin Tianjiao Chemical Co., Ltd.), and add 3 parts of photoinitiator Irgacure 1173 (manufactured by Nanjing Jiean Chemical Co., Ltd. ). Dilute the obtained mixture with a mixed solvent of 50 parts of methyl ethyl ketone and 20 parts of isopropanol, then add 0.1 parts by weight of silicone wetting aid BYK-3500 (manufactured by BYK Chemicals), and stir well to obtain a hard coating composition thing.

[0053] The obtained hard coat composition was coated onto a substrate film, a polyethylene terephthalate film (manufactured by China Lucky Film Group Co., Ltd.) with ...

Embodiment 2

[0055] 16 parts of pentaerythritol triacrylate,

[0056] 48 parts of dipentaerythritol hexaacrylate,

[0057] 16 parts of 2-phenoxyethyl acrylate,

[0058] Photoinitiator Irgacure 1173 10 parts,

[0059] 4 parts of phenol,

[0060] 16 parts of ethyl acetate,

[0061] BYK-3700 5 copies,

[0062] To 48 parts of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd.) and 16 parts of pentaerythritol triacrylate (manufactured by Tianjin Tianjiao Chemical), add 16 parts of 2-phenoxyethyl acrylate monomer (manufactured by Sartomer Chemical) , add 8 parts of photoinitiator Irgacure 1173 (manufactured by Nanjing Jiean Chemical Co., Ltd.). Dilute the obtained mixture with a mixed solvent of 16 parts of ethyl acetate and 4 parts of phenol, then add 5 parts of silicone wetting aid BYK-3500 (manufactured by BYK Chemicals), and stir well to obtain a hard coating composition.

[0063] The obtained hard coat composition was coated onto a substrate film, a polyethylene t...

Embodiment 3

[0065] 15 parts of pentaerythritol triacrylate,

[0066] 9 parts of trimethylolpropane triacrylate,

[0067] 6 parts of isobornyl acrylate,

[0068] Photoinitiator Irgacure 1173 1 part,

[0069] 16 parts of phenol,

[0070] 40 parts of ethanol,

[0071] 14 parts of butyl acetate,

[0072] BYK-3500 0.2 parts,

[0073] To 15 parts of pentaerythritol triacrylate (manufactured by Tianjin Tianjiao Chemical) and 9 parts of trimethylolpropane triacrylate (manufactured by Nippon Kayakusha), add 6 parts of isobornyl acrylate (manufactured by Sartomer Chemical), and add 1 Parts of photoinitiator Irgacure 1173 (manufactured by Nanjing Jiean Chemical Co., Ltd.). Dilute the obtained mixture with a mixed solvent of 16 parts of phenol, 40 parts of ethanol and 14 parts of butyl acetate, then add 0.2 parts of silicone wetting aid BYK-3500 (manufactured by BYK Chemicals), and stir well to obtain a hard coating layer composition.

[0074] The obtained hard coat composition was coated ont...

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Abstract

Provided are a hard coating composition and a hardened membrane containing the same. The hard coating composition comprises, by weight, 30 to 80 parts of hydroxyl-containing acrylate monomers, 1 to 10 parts of an photoinitiator, 20 to 70 parts of a solvent and 0.1 part to 5 parts of a reactive organosilicon surface wetting auxiliary agent, wherein, the hydroxyl-containing acrylate monomers are a mixture of hydroxyl-containing multi-functional acrylate monomers and hydroxyl-containing low functional acrylate monomers mixed according to a weight ratio of 2:8 to 8:2. The composition provided in the invention has excellent adhesion to a PET substrate surface which is never treated and a PET substrate surface which has corona or a failure coating bottom; hardness of the hardened layer of the obtained hardened membrane is greater than 1H, and therefore, the hardened membrane can be used as a hardened membrane of an indium tin oxide (ITO) touch screen, an in-mold label (IML), or the like.

Description

technical field [0001] The present invention relates to a hard coat composition and a cured film containing the hard coat composition. Background technique [0002] Due to its high light transmittance and low weight, PET substrates are used more and more widely as protective layers on the surface of various devices. In order to prevent scratches on the surface of plastic substrates, people often place a layer of hard coating on the surface. In order to improve the hardness of the substrate surface, anti-scratch and wear-resistant and anti-fouling properties. But because the surface of PET substrate is inert, the adhesion of general hard coat composition to its surface is not ideal, so people need to treat the surface of PET substrate with surface corona, coating adhesive primer, etc., to improve the hard coating. Adhesion of the layer composition thereon. Although these measures can solve the problem of poor adhesion, they also increase the cost of the product, and, wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02C09D7/12B32B27/06B32B27/18
Inventor 李丽王宏伟鲁若娜王志坚
Owner CHINA LUCKY FILM CORP
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