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Alkali-soluble resin and uv curing hydrofluoric acid-resistant protective adhesive composition containing alkali-soluble resin

A technology of alkali-soluble resin and composition, applied in the field of UV curing hydrofluoric acid-resistant protective adhesive, which can solve the problems of easy falling off, easy failure, insufficient adhesion between protective adhesive and glass substrate, etc.

Active Publication Date: 2017-12-19
惠晶显示科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In organic electroluminescent displays, the average lifespan of existing organic light-emitting materials can reach more than 15,000 hours, which can already be applied to actual mass-produced products. However, organic light-emitting materials have a disadvantage: they are prone to failure when exposed to water and oxygen. , if water vapor pollution and erosion can be completely prevented during the encapsulation process of OLED devices, the life of the components may continue to increase
[0006] On the one hand, the hydrofluoric acid-resistant protective glue in the prior art has insufficient adhesion between the protective glue and the glass substrate, and it is easy to fall off, causing a large number of defects and increasing costs; Protective film to corrode the glass substrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Synthesis of Alkali-Soluble Resin:

[0034] Add 12.47g of maleic anhydride and 120ml of xylene into a 250mL four-neck flask equipped with a stirrer, reflux condenser, thermometer and dropping funnel and heat to 80°C to dissolve them all. Add 15.73g of styrene, 62.56g of phenoxy Diethylene glycol (meth)acrylate, 0.25~0.35g of dibenzoyl peroxide and 50mL of xylene are mixed and shaken, then added to the reaction bottle from the dropping funnel, the temperature does not exceed 90°C, and the drop is completed in about 30~40 minutes . Counting from the appearance of white precipitated polymer, the reaction can be stopped at 100-105°C for about 7 hours. The product was cooled to room temperature, filtered (recovering xylene), washed with petroleum ether, and dried to obtain an alkali-soluble resin.

[0035] As measured by gel permeation chromatography (GPC), the polystyrene equivalent weight average molecular weight of the alkali-soluble resin was 13500 g / mol, and the acid ...

Embodiment 2

[0037] Synthesis of Alkali-Soluble Resin:

[0038] Add 12.47g of methyl maleic anhydride and 120ml of xylene into a 250mL four-neck flask equipped with a stirrer, reflux condenser, thermometer and dropping funnel and heat to 80°C to dissolve them completely. Esters, 62.56g of phenoxydiethylene glycol (meth)acrylate, 0.25~0.35g of dibenzoyl peroxide and 50mL of xylene were mixed and shaken, then added to the reaction flask from the dropping funnel, and the temperature did not exceed 90°C. About 30 to 40 minutes to finish dripping. Counting from the appearance of white precipitated polymer, the reaction can be stopped at 100-105°C for about 7 hours. The product was cooled to room temperature, filtered (recovering xylene), washed with petroleum ether, and dried to obtain an alkali-soluble resin.

[0039] As measured by gel permeation chromatography (GPC), the polystyrene equivalent weight average molecular weight of the alkali-soluble resin was 14500 g / mol, and the acid value w...

Embodiment 3

[0041] The preparation and testing method of described UV curing anti-hydrofluoric acid protective adhesive composition are as follows:

[0042] Stir the alkali-soluble resin, active monomer, photoinitiator, filler, auxiliary agent and organic pigment evenly at a temperature lower than 30°C to obtain a UV-curable hydrofluoric acid-resistant protective adhesive composition.

[0043] Test the viscosity, if the test result does not meet the set viscosity threshold, then adjust the viscosity to the viscosity threshold, the set viscosity threshold is the viscosity range of the developed developable UV curable hydrofluoric acid resistant protective adhesive. Viscosity is the main parameter that determines the performance of developable UV-curable hydrofluoric acid-resistant protective adhesive. If the viscosity is too high, it is not conducive to the coating of developable UV-curable hydrofluoric acid-resistant protective adhesive; if the viscosity is too small, the degree of crossli...

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Abstract

The invention discloses an alkali-soluble resin and a UV-curable hydrofluoric acid-resistant protective adhesive composition comprising the alkali-soluble resin. The alkali-soluble resin is composed of maleic anhydride or methyl maleic anhydride structural units, unsaturated carboxylic acid A prepolymer formed of ester structural units and / or aromatic vinyl structural units; the alkali-soluble resin has excellent physical properties such as adhesion, chemical resistance, developability, sensitivity, strength or elasticity. The UV curing hydrofluoric acid resistant protective adhesive composition includes: alkali-soluble resin, fluorine-containing acrylate monomer, photoinitiator, filler, auxiliary agent and organic pigment. The UV-curable hydrofluoric acid-resistant protective adhesive using the alkali-soluble resin has alkali developability and high etching precision, and the adhesive film is easily peeled off by inorganic alkali after glass etching, and will not remain on the surface of the material or pollute the material.

Description

technical field [0001] The invention relates to an alkali-soluble resin and a UV-curable hydrofluoric acid-resistant protective adhesive composition comprising the alkali-soluble resin, in particular to an alkali-soluble resin with excellent glass substrate adhesion and alkali developability and the composition comprising the alkali-soluble resin UV curing hydrofluoric acid resistant protective adhesive of alkali soluble resin. Background technique [0002] OLED, Organic Light Emitting Diode (Organic Light Emitting Diode), also known as Organic Electro Luminescence Display (OELD), is a new generation of flat-panel display technology after TFT-LCD (Thin FilmTransistor Liquid Crystal Display). OLED is different from the traditional LCD display method. It is a self-luminous material without a backlight. It uses a very thin organic material coating and a glass substrate. When an electric current passes, these organic materials will emit light. In addition, OLED has the advantag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/30C08F222/08C08F212/08C08F222/04G03F7/033
Inventor 王伟滕祥飞
Owner 惠晶显示科技(苏州)有限公司