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Ultraviolet-curing type optical resin adhesive and preparation method thereof

An optical resin, curing technology, applied in the direction of adhesive additives, adhesive types, polyurea/polyurethane adhesives, etc., to achieve the effect of improving durability and bonding reliability, and low cost

Inactive Publication Date: 2013-12-11
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesiveness of the optically transparent adhesive film is good, but for large-sized screens, the interface between the conductive glass and the surface protection board does not produce bubbles or wrinkles, and more advanced operation technology is required

Method used

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  • Ultraviolet-curing type optical resin adhesive and preparation method thereof
  • Ultraviolet-curing type optical resin adhesive and preparation method thereof
  • Ultraviolet-curing type optical resin adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0021] Synthesis Example 1 Synthesis of Trifunctional Polyether Urethane Acrylate [P1]

[0022] Add 120 grams of polyether trihydric alcohol (Bluestar Dongda EP-3600) with a hydroxyl value of 28 and 13.3 grams of isophorone diisocyanate into the reactor, and add 0.1 grams of dibutyltin dilaurate as a catalyst. React at 75°C for 2.5 hours, add 8.6 grams of hydroxyethyl acrylate, 0.1 grams of p-hydroxyanisole, and 0.3 grams of β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, continue React at 75°C for 2 hours, then cool and discharge to obtain trifunctional polyether urethane acrylate [P1].

Synthetic example 2

[0023] Synthesis Example 2 Synthesis of Difunctional Polyether Urethane Acrylate [P2]

[0024] Add 108 grams of polyether diol (Dow Voranol 4240) with a hydroxyl value of 28 and 10 grams of isophorone diisocyanate into the reactor, add 0.1 grams of dibutyltin dilaurate as a catalyst, and react at 75 ° C After 2.5 hours, add 2.5 grams of hydroxyethyl acrylate, 0.15 grams of p-hydroxyanisole, and 0.45 grams of β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, and continue to heat at 75 ° C. After reacting for 2 hours, cooling and discharging is bifunctional polyether polyurethane acrylate [P2].

[0025] Mix P1, P2, plasticizer, reactive diluent, photoinitiator, and silane coupling agent synthesized in the above synthesis example in a stirring tank according to the weight in the table below until uniform, vacuumize and defoam, and discharge. Example 1

Embodiment 1

[0026]

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Abstract

The invention discloses an ultraviolet-curing type optical resin adhesive. The ultraviolet-curing type optical resin adhesive consists of the following materials in parts by weight: 10-30 parts of tri-functionality polyether polyurethane acrylate which is prepared through the reaction of polyether trihydric alcohol, diisocyanate and hydroxyl acrylate, 5-40 parts of double-functionality polyether polyurethane acrylate which is prepared through the reaction of polyether glycol, diisocyanate and hydroxyl acrylate, 10-50 parts of plasticizers, 15-45 parts of acrylate reactive diluents, 1-5 parts of photoinitiators and 1-3 parts of silane coupling agents. The ultraviolet-curing type optical resin adhesive has the advantages of being simple and easily available, low in cost and suitable for industrial application and the like.

Description

technical field [0001] The invention relates to an adhesive, in particular to an ultraviolet curable resin adhesive for laminating optically transparent components and a preparation method thereof, especially for capacitive touch screen cover glass (Cover glass) and ITO conductive glass It improves the transparency, durability and bonding reliability of the product, and then has excellent performance in screen clarity and contrast. Background technique [0002] Touch panels are generally mounted on the liquid crystal display panels of mobile phones, tablet PCs, car navigation systems, e-books, etc., and there are resistive film type, electrostatic capacity type, electromagnetic induction type, surface acoustic wave type, infrared type, etc. Among them, the capacitive touch panel is generally a composite structure of transparent glass coated with an ITO conductive layer and a surface protection plate, and needs a transparent adhesive layer. Conventionally, adhesive transpare...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J11/06C09J11/08C08G18/75C08G18/73C08G18/67C08G18/48C08G18/24
Inventor 崔亨利王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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