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Ultraviolet-curing liquid-state optical cement

A technology of optical glue and ultraviolet light, which is applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of difficult thickness reduction, high cost, low refractive index, etc., and achieve thin lamination thickness, Yield improvement, effect of high refractive index

Active Publication Date: 2013-03-13
SUZHOU BETELY POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problems of easy generation of air bubbles, high cost, and difficulty in reducing the thickness when OCA tape is bonded; and the existing liquid optical adhesives with poor adhesion, low light transmittance, low refractive index and insufficient flexibility

Method used

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  • Ultraviolet-curing liquid-state optical cement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A UV-curable transfer adhesive, which is composed of the following raw materials: 30g silicone modified polybutadiene acrylate, 25g polyurethane acrylate, 24g isobornyl methacrylate, 16g triethylene glycol dimethacrylate, 2g of 1-hydroxycyclohexyl phenyl ketone, 1g of phenyl bis(2,4,6-trimethylbenzoyl) phosphine oxide, 1g of γ-(methacryloxy)propyltrimethoxysilane, 2 -(2',4'-dihydroxyphenyl)-5,6-dihydroxybenzotriazole 0.5g, 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5- Chlorinated benzotriazole 0.5g.

[0025] Prepare according to the following method: add the above initiator and 24g of isobornyl methacrylate to a star vacuum mixer in a thousand-level dust-free workshop, heat to 55°C, stir and dissolve; then add the above oligomer and triethylene glycol 16g of bismethacrylate, heated to 55°C under vacuum, and stirred uniformly; finally, add the above-mentioned additives, disperse at high speed with a disperser, press and filter, and then pack to obtain UV-curable liquid optical ad...

Embodiment 2

[0028] A UV-curable transfer adhesive composed of the following raw materials: 61g of silicone modified polybutadiene acrylate, 18g of isobornyl methacrylate, 12g of phenoxymethylethyl acrylate, and 2-hydroxy- 2Methyl-1-phenyl-1-acetone 2g, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide 3g, N-(β-aminoethyl)-γ-aminopropyl 2g of methyldimethoxysilane, 1g of 2,6-di-tert-butylphenol, 0.5g of 2-(2',4'-dihydroxyphenyl)-5,6-dihydroxybenzotriazole, 2 -(2'-hydroxy-3',5'-di-tert-phenyl)-5-chlorobenzotriazole 0.5g.

[0029] Prepare according to the following method: add the above initiator and 18g of isobornyl methacrylate to a star vacuum mixer in a thousand-level dust-free workshop, heat to 50°C, stir and dissolve; then add the above oligomer and phenoxy 12g of methethyl acrylate, heated to 50°C in a vacuum state and stirred uniformly; finally, add the above additives, disperse at a high speed with a disperser, press and filter, and then divide and pack to obtain a UV curable liquid op...

Embodiment 3

[0032] A UV-curable transfer adhesive, composed of the following raw materials: 30g of silicone modified polybutadiene acrylate, 14g of polyester acrylate, 20g of polyurethane acrylate, 16.5g of propylene oxide glycerol triacrylate, and phenoxymethyl Hydroxyethyl acrylate (PHEMA) 13.5g, 1-hydroxycyclohexyl phenyl ketone 2g, 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide 2g, vinyl trimethoxysilane 1g, 2-(2',4'-dihydroxyphenyl)-5,6-dihydroxybenzotriazole 0.5g, 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5 -Chlorinated benzotriazole 0.5g.

[0033] Prepare according to the following method: add the above initiator and 16.5g of propylene oxide glycerol triacrylate to a star vacuum mixer in a thousand-level dust-free workshop, heat to 60℃, stir and dissolve; then add the above oligomer and phenoxy 13.5g of methethyl acrylate (PHEMA), heated to 60°C under vacuum, and stirred evenly; finally, add the above additives, disperse at high speed with a disperser, press and filter, and pack to obtain...

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Abstract

The invention discloses a ultraviolet-curing liquid-state optical cement. The ultraviolet-curing liquid-state optical cement includes the following components by weight percent: 50-75% of low polymer, 20-40% of activated monomer, 3-6% of free radical type photoinitiator and 2-4% of accessory ingredient, wherein the low polymer comprises one or more of organosilicone modification polybutadiene acrylate, urethane acrylate and polyester acrylate, and the activated monomer is one of mono-functional group, bi-functional group and poly-functional group. The ultraviolet-curing liquid-state optical cement can be applied to fixed bonding between touch screen protective glass and protective glass as well as between the touch screen protective glass and an LCD (Liquid Crystal Display) screen, can be adequately cured within an energy of 3000 mj / cm<2> under a room temperature, the whole-line light transmittance can reach 93% or more, the refractive index exceeds 1.50, the light transmittance of a touch screen can be greatly improved, and the rate of finished products is improved; the ultraviolet-curing liquid-state optical cement is more suitable for continuous production; the production efficiency is improved; and the ultraviolet-curing liquid-state optical cement is stable in performance and good in environmental protection property in a high-temperature and high-humidity environment.

Description

technical field [0001] The invention relates to an ultraviolet light-curable liquid optical adhesive, in particular to an ultraviolet light-curable liquid optical adhesive used for bonding capacitive touch screens. Background technique [0002] In recent years, the touch screen (Touch Panel) has been widely used in high-end electronic products such as mobile phones and computers. Because of its unique visual design and human-computer interaction, touch screens have made rapid progress in the application of high-end electronic products such as mobile phones and computers. , Driving a new wave of electronic product innovation. From traditional toys, game consoles, information query machines, to new PDAs, mobile phones, tablet computers, GPS, POS, TP's application fields are getting wider and wider. Among them, the application of mobile phone touch technology is the most important. According to the survey, it is estimated that more than 60% of touch panels will be used in mob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J167/07C09J11/06
Inventor 陶林华殷永彪
Owner SUZHOU BETELY POLYMER MATERIALS CO LTD
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