Liquid optical transparent adhesive and preparation method thereof

An optically transparent adhesive and its production method technology, applied in the direction of adhesives, non-polymer organic compound adhesives, etc., can solve the problems of reduced screen brightness and contrast, messy light, etc., and achieve low shrinkage, low hardness, and long-lasting effect Effect

Inactive Publication Date: 2017-07-07
河源然生新材料有限公司
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  • Abstract
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Problems solved by technology

However, because the glass substrate of the LCD screen, the air layer in the air gap, and the outer cover all use tempered glass or acrylic plates, these materials with different refractive indices are assembled on the mobile phone display in the above order, resulting in sunlight or background light. Only part of the light source is reflected back, causing messy light
As can be imagined, the brightness and contrast of the picture are reduced.

Method used

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  • Liquid optical transparent adhesive and preparation method thereof
  • Liquid optical transparent adhesive and preparation method thereof

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Embodiment Construction

[0020] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below.

[0021] The invention discloses a liquid optical transparent adhesive, which is composed of the following components in parts by weight: 40-70 parts of oligomer; 30-50 parts of acrylate active monomer; 1-5 parts of photoinitiator; 1-5 parts of auxiliary agent.

[0022] The oligomer is polyisoprene acrylate, polybutadiene acrylate or polystyrene adiene acrylate, the molecular weight is between 15000-40000, the functionality is 2-3, and it has a large molecular weight and low hardness. , Very low corrosion to ITO film, anti-yellowing, low shrinkage and other properties. The polyisoprene acrylate, polybutadiene acrylate or polystyrene-diene acrylate is a high-molecular-weight liquid rubber with a functionality of 2-3, capable of UV curing, and has a large molecular weight between 17000-35000 , low hardness, Shore hardness < 10A, volume shrinkage b...

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Abstract

The invention discloses a liquid optical transparent adhesive which comprises the following components in parts by weight: 40-70 parts of low polymer, 30-50 parts of acrylate activated monomer, 1-5 parts of photoinitiator and 1-5 parts of assistant, wherein the low polymer is polyisoprene acrylate, polybutadiene acrylate or polyphenyldiene acrylate; the molecular weight of the low polymer is 15000-40000; the functionality degree of the low polymer is 2-3; and the activated monomer is one or two or a combination of more than two of methacrylate, isobornyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, ethoxylated nonyl phenol acrylate, lauryl methacrylate, butyl methacrylate, trimethylolpropane diacrylate and trimethylolpropane triacrylate. The adhesive effectively improves yellowing generated in a curing process, therebyimprovingthe quality of a product.

Description

technical field [0001] The invention belongs to the technical field of chemical bonding products, and in particular relates to a UV-curable adhesive or bonding agent, in particular to a liquid optically transparent adhesive used in mobile phones, computers and other touch screen fields to bond glass covers and ITO films and its production method. Background technique [0002] In 1971, Sam Hurst, who was a lecturer at a university in the United States, made the earliest touch screen in his small workshop. At that time, Sam had to deal with a large amount of graphic data every day due to his work, so he wanted to invent a device that could improve work efficiency. Save it. So there was the earliest touch screen "AccuTouch". In 1973, the American "Industrial Research" magazine rated touch screen technology as one of the "100 most important new technology products", and predicted that this technology will be widely used. Among the 100 promising technical products, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02
CPCC09J4/06C08F279/02
Inventor 邹名超
Owner 河源然生新材料有限公司
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