Urethane-acrylate copolymer and photoresist composition thereof

A technology of urethane acrylate and acrylate, which is applied in the field of photoresist to achieve the effect of improving heat resistance and hardness, good comprehensive performance and excellent adhesion

Active Publication Date: 2015-08-05
SUZHOU RUIHONG ELECTRONIC CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are few reports on the application of polyurethane acrylate copolymers in the field of photoresist

Method used

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  • Urethane-acrylate copolymer and photoresist composition thereof
  • Urethane-acrylate copolymer and photoresist composition thereof
  • Urethane-acrylate copolymer and photoresist composition thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of polyurethane acrylate monomer (PUA): add isophorone diisocyanate (IPDI) 133.38g and dilauric acid di Butyl tin (DBTDL) 0.42g, then add 0.31g polymerization inhibitor 2,6-di-tert-butyl-p-cresol, add dropwise 80.41g hydroxyethyl methacrylate at 45°C, keep the temperature for 2h, then raise the temperature to 60 °C, 25 g of anhydrous methanol was added to finally obtain a urethane acrylate monomer. The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, and proceeds to the next step of reaction when it is close to the theoretical NCO value.

[0023] (2) Preparation of polyurethane acrylate copolymer: Add 40g of propylene glycol methyl ether acetate into a 250ml four-necked round-bottomed flask equipped with a thermometer, a reflux condenser, and a stirrer, raise the temperature to 85°C and allow it to reflux, and then drop A monomer mixture mixed with 2.4 g of initiator azobisisobutyroni...

Embodiment 2

[0026] (1) Preparation of polyurethane acrylate monomer (PUA): add isophorone diisocyanate (IPDI) 133.38g and dilauric acid di Butyl tin (DBTDL) 0.42g, then add 0.31g polymerization inhibitor 2,6-di-tert-butyl-p-cresol, add dropwise 80.41g hydroxyethyl methacrylate at 45°C, keep the temperature for 2h, then raise the temperature to 60 °C, 25 g of anhydrous methanol was added to finally obtain a urethane acrylate monomer. The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, and proceeds to the next step of reaction when it is close to the theoretical NCO value.

[0027] (2) Preparation of polyurethane acrylate copolymer: Add 40g of propylene glycol methyl ether acetate into a 250ml four-necked round-bottomed flask equipped with a thermometer, a reflux condenser, and a stirrer, raise the temperature to 85°C and allow it to reflux, and then drop A monomer mixture with 2.1 g of initiator azobisisobutyronitrile,...

Embodiment 3

[0030] (1) Preparation of polyurethane acrylate monomer (PUA): add isophorone diisocyanate (IPDI) 133.38g and dilauric acid di Butyl tin (DBTDL) 0.42g, then add 0.31g of polymerization inhibitor 2,6-di-tert-butyl-p-cresol, drop 71.82g of hydroxyethyl acrylate at 45°C, keep the temperature for 2h, then raise the temperature to 60°C, 25 g of anhydrous methanol was added to finally obtain a urethane acrylate monomer. The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, and proceeds to the next step of reaction when it is close to the theoretical NCO value.

[0031] (2) Preparation of polyurethane acrylate copolymer: Add 40g of propylene glycol methyl ether acetate into a 250ml four-necked round-bottomed flask equipped with a thermometer, a reflux condenser, and a stirrer, raise the temperature to 85°C and allow it to reflux, and then drop A monomer mixture mixed with 2.4 g of initiator azobisisobutyronitrile, ...

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Abstract

The invention provides a urethane-acrylate copolymer and a photoresist composition thereof and belongs to the field of photoresists. A hydroxyl-containing acrylate monomer and a diisocyanate compound undergo a reaction to produce an NCO-terminiated prepolymer, the NCO-terminiated prepolymer and saturated monobasic alcohol undergo an end-capping reaction to produce a urethane-acrylate polymer monomer containing tail end double bonds, and the urethane-acrylate polymer monomer undergoes a free radical copolymerization reaction to produce the urethane-acrylate copolymer. Through use of annular diisocyanate, photoresist corrosion resistance is improved. Through use of acrylic acid or methacrylic acid, the copolymer has the characteristics of adjustable acid value and dissoluble alkali lye. Through use of other rigid acrylate monomers, copolymer heat resistance and hardness are improved. Through use of the urethane acrylate and acrylic acid monomers, the copolymer has excellent adhesion. The photoresist is prepared by mixing the resin, an active diluent, a solvent, a photoinitiator and a pigment, can produce images with good comprehensive properties and high resolution and can be used in the field of photoresists.

Description

technical field [0001] The invention relates to the field of photoresists, in particular to a polyurethane acrylate copolymer obtained by polymerizing polyurethane acrylate monomers and other acrylic monomers, and a photoresist prepared therefrom. Background technique [0002] Polyurethane acrylate (PUA) is a photosensitive resin that has been studied more at present. It combines the excellent properties of polyurethane and acrylate resins, has a high light curing speed, good adhesion, flexibility, wear resistance, high hardness, Chemical resistance, etc., have been widely used in various fields such as coatings, inks and adhesives. Polyurethane acrylate macromers also have some excellent properties of these two resins, and they are free radically copolymerized with other acrylate monomers, so that the excellent properties of both polyurethane and acrylate are reflected in the copolymer, and then In addition, the introduction of the carboxyl group makes the copolymer have a...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/36C08F220/06C08F220/28G03F7/004G03F7/027
Inventor 刘敬成刘秋华刘仁刘晓亚穆启道郑祥飞李治全
Owner SUZHOU RUIHONG ELECTRONIC CHEM CO LTD
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