A UV-heat dual curing optical adhesive containing epoxidized polybutadiene resin

A polybutadiene resin and dual curing technology, which is applied in the direction of adhesives, non-polymer organic compound adhesives, etc., can solve the problem that the light transmittance, refractive index, and haze optical properties of cured products cannot meet the requirements and applicable occasions There are problems such as limitations and low performance of cured products, so as to meet the requirements of optical and physical and chemical properties, reduce equipment investment, and have low yellowing index.
CN104449419BActive Publication Date: 2016-08-24信泰永合(烟台)新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
信泰永合(烟台)新材料有限公司
Publication Date
2016-08-24

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Abstract

The invention belongs to the technical field of adhesives, and particularly relates to an ultraviolet-heat dual curing optical adhesive containing epoxidized polybutadiene resin. The ultraviolet-heat dual curing optical adhesive comprises the following components in percentage by weight: 14.5%-45% of epoxidized polybutadiene resin, 10%-40% of alicyclic epoxy modified resin, 5%-15% of polyolefin liquid rubber, 25.5%-35% of an acrylic ester reactive diluent, 2.4%-3.4% of a free radical photoinitiator, 0.1%-0.2% of a cationic photoinitiator and 2%-2.5% of a peroxide initiating curing agent. The optical adhesive disclosed by the invention is relatively completely solidified at a shaded part, a dark adhesive layer part or a thick adhesive layer part, has excellent optical properties such as high refractive index and high transmittance after being solidified, has the advantages of shock resistance, low yellowing coefficient, low haze, low shrinking percentage, easiness in repairing and good flexibility, meets the requirements of optical, physical and chemical properties of display devices, and is suitable for fast-tempo and high-efficiency production processes.
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Description

technical field

[0001] The invention belongs to the technical field of adhesives, in particular to an ultraviolet-heat dual curing optical adhesive containing epoxidized polybutadiene resin. Background technique

[0002] In the manufacture of mobile display devices such as mobile phones and tablet computers, the UV-curable adhesive that meets the optical requirements is filled between the outer layer of the screen, the ITO layer, and the liquid crystal glass substrate. The UV-cured adhesive layer is similar to the refractive index of each layer. , can reduce light scattering and reflection, increase screen contrast and brightness, and improve screen visibility in sunlight and stray light. However, this type of optical-grade UV-curable adhesive also has its own limitations. In the manufacture of screen components and electronic circuit boards, the shaded parts are insufficiently sensitive to ultraviolet light due to the occlusion of frames and components; in other application...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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