A kind of multi-functional photocurable resin for color photoresist and preparation method thereof

A light-curing resin and multi-functionality technology, which is applied in the field of multi-functionality light-curing resin and its preparation, can solve the problems of increased coating volume shrinkage, decreased water and weather resistance, and environmental pollution, achieving small volume shrinkage and good Excellent hardness, aging resistance and chemical corrosion resistance

Active Publication Date: 2018-05-22
JIANGSU BOYAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the functionality will usually lead to an increase in the viscosity of the system, and the volume shrinkage of the coating will increase, which will easily lead to defects such as decreased adhesion and decreased water and weather resistance.
On the other hand, the synthesis of acrylic monomers mostly uses petrochemical raw materials, which are non-renewable resources and are easy to pollute the environment

Method used

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  • A kind of multi-functional photocurable resin for color photoresist and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Add gallic acid, pyromellitic anhydride, and hydrochloric acid accounting for 5wt% of the reactant (concentration 37wt%, hereinafter the same ), with acetone as the reaction solvent, heated to 60°C to condense and reflux. Samples were taken every 30 minutes to analyze the esterification rate of pyromellitic anhydride by infrared. To be anhydride at 1847cm -1 The infrared peak at 3600cm decreases to no longer changes -1 The hydroxyl peak of α was also reduced to no longer changed, indicating a complete reaction. The solvent was then distilled off under reduced pressure to obtain a solid powder product.

[0017] (2) Add 5g of the product of step (1) and 0.005g of hydrochloric acid into a 250mL four-neck flask equipped with a water separator, heat to melt and start stirring, and when the temperature of the system rises to 200°C, add 0.5g of methyl Hydroxyethyl acrylate (containing 0.05g of hydroquinone), the rate of addition is based on the fact that the temperatur...

Embodiment 2

[0019] (1) Add gallic acid, pyromellitic anhydride, and hydrochloric acid accounting for 0.1wt% of the reactant in a 250mL four-necked flask with a molar ratio of 1:5, using acetone as the reaction solvent , heated to 60°C and condensed to reflux. Samples were taken every 30 minutes to analyze the esterification rate of pyromellitic anhydride by infrared. To be anhydride at 1847cm -1 The infrared peak at 3600cm decreases to no longer changes -1 The hydroxyl peak of the product was also reduced to no longer changing, indicating that after sufficient reaction, the solvent acetone was distilled off under reduced pressure to obtain a solid powder product.

[0020] (2) Add 5g of the product of step (1) and 0.005g of hydrochloric acid into a 250mL four-neck flask equipped with a water separator, heat to melt and start stirring, and when the temperature of the system rises to 200°C, add 0.5g of methyl For hydroxyethyl acrylate (containing 0.05g of hydroquinone), the rate of additi...

Embodiment 3

[0022] (1) add gallic acid, pyromellitic anhydride, and account for reactant 5wt% sulfuric acid in a 250mL four-neck flask with a molar ratio of 1:1, with acetone as the reaction solvent, Heated to 60°C and condensed to reflux. Samples were taken every 30 minutes to analyze the esterification rate of pyromellitic anhydride by infrared. To be anhydride at 1847cm -1 The infrared peak at 3600cm decreases to no longer changes -1 The hydroxyl peak of the product was also reduced to no longer changing, indicating that after sufficient reaction, the solvent acetone was distilled off under reduced pressure to obtain a solid powder product.

[0023] (2) Add 5g of the product of step (1) and 0.25g of sulfuric acid into a 250mL four-neck flask equipped with a water separator, heat to melt and start stirring. When the temperature of the system rises to 200°C, add 0.5g of methyl For hydroxyethyl acrylate (containing 0.05g of hydroquinone), the rate of addition is based on the fact that ...

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Abstract

The invention discloses polyfunctional light-cured resin for color photoresistance. The polyfunctional light-cured resin is prepared by carrying out partial esterifying reaction on biological polyhydric alcohol and acid anhydride containing a benzene ring rigid structure, and then carrying out secondary esterification or interesterification with hydroxyalkyl methacrylate. The resin has the advantages of good hydrophobicity, high hardness of products when applied to color photoresistance, excellent heat resistance, aging resistance and chemical resistance, low preparation cost, simple operation and high product yield.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a multifunctional light-curable resin for color photoresists and a preparation method thereof. Background technique [0002] Acrylic monomers are the most commonly used active monomers for free radical polymerization in the field of UV curing. They have the characteristics of low viscosity, high reactivity, and fast curing. By increasing their functionality, their crosslinking density and reaction speed. However, increasing the functionality will usually lead to an increase in the viscosity of the system, and the volume shrinkage of the coating will increase, which will easily lead to defects such as decreased adhesion and decreased water and weather resistance. On the other hand, the synthesis of acrylic monomers mostly uses petrochemical raw materials, which are non-renewable resources and are easy to pollute the environment. More environmentally friendly bio-base...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/20
CPCC08G63/21
Inventor 安暻源内河喜代司宗健马争遥
Owner JIANGSU BOYAN ELECTRONICS TECH
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