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Bio-based photo-curable polyurethane and photoresist prepared with same

A technology of photocuring and polyurethane, applied in the field of photoresist, to achieve the effect of increasing the glass transition temperature, good comprehensive performance and high resolution

Inactive Publication Date: 2016-08-24
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the application of bio-based polyurethane in the field of photoresist

Method used

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  • Bio-based photo-curable polyurethane and photoresist prepared with same
  • Bio-based photo-curable polyurethane and photoresist prepared with same
  • Bio-based photo-curable polyurethane and photoresist prepared with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Preparation of bio-based photocurable polyurethane:

[0032] Add 44.458 g of isophorone diisocyanate (IPDI) and 0.295 g of dibutyltin dilaurate (DBTDL) into a 250 mL four-necked round bottom flask equipped with a thermometer, a reflux condenser, and a stirrer, and drop isosorbide into it (ISB) 14.614g, add 15g of N,N-dimethylformamide to adjust the viscosity of the system, keep the reaction at 45°C for 2h, then add 6.706g of 2,2-dimethylolpropionic acid (DMPA), Insulation reaction for 4 hours, finally add 0.420g of polymerization inhibitor 2,6-di-tert-butyl-p-cresol, and then add 13.934g of hydroxyethyl acrylate (HEA), until NCO can not be detected by infrared spectroscopy at 2265cm -1 When the absorption peak at figure 2 As shown, stop the reaction, the required time is 5h, and finally obtain bio-based photocurable polyurethane.

[0033] The synthetic structural route of the obtained bio-based photocurable polyurethane is shown in figure 1 shown. The whole pro...

Embodiment 2

[0038] (1) Preparation of bio-based photocurable polyurethane:

[0039] Add 44.458 g of isophorone diisocyanate (IPDI) and 0.295 g of dibutyltin dilaurate (DBTDL) into a 250 mL four-necked round bottom flask equipped with a thermometer, a reflux condenser, and a stirrer, and drop isosorbide into it (ISB) 14.614g, add 15g of N,N-dimethylformamide to adjust the viscosity of the system, keep the reaction at 45°C for 2h, then add 6.706g of 2,2-dimethylolpropionic acid (DMPA), Insulation reaction for 4h, finally add 0.420g of polymerization inhibitor 2,6-di-tert-butyl-p-cresol, and then add 55.795g of pentaerythritol triacrylate (PETA), until NCO cannot be detected by infrared spectroscopy at 2265cm -1 When the absorption peak at the place, stop the reaction, the required time is 5h, and finally obtain the bio-based photocurable polyurethane.

[0040] The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, and proc...

Embodiment 3

[0045] (1) Preparation of bio-based photocurable polyurethane:

[0046] Add 44.458 g of isophorone diisocyanate (IPDI) and 0.295 g of dibutyltin dilaurate (DBTDL) into a 250 mL four-necked round-bottomed flask equipped with a thermometer, a reflux condenser, and a stirrer, and drop isosorbide Alcohol (ISB) 14.614g, add 15g of N,N-dimethylformamide to adjust the viscosity of the system, keep the reaction at 45°C for 2h, then add 6.706g of 2,2-dimethylolpropionic acid (DMPA), in 75 ℃ heat preservation reaction for 4h, finally add 0.420g of polymerization inhibitor 2,6-di-tert-butyl p-cresol, then add 13.934g of hydroxyethyl acrylate (HEA), until NCO can not be detected by infrared spectroscopy at 2265cm -1 When the absorption peak at the place, stop the reaction, the required time is 5h, and finally obtain the bio-based photocurable polyurethane.

[0047] The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, a...

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Abstract

The invention provides bio-based photo-curable polyurethane and a photoresist composition from the same and belongs to the field of photoresists. The photoresist composition is prepared by: reacting bio-based monomer isosorbide with a diisocyanate to obtain NCO-terminated monomer, reacting this monomer with dihydroxy acid to synthesize polyurethane prepolymer, terminating with acrylate monohydric alcohol to obtain bio-based photo-curable polyurethane, mixing the prepared polyurethane proportionally with a photoinitiator, a solvent, an active diluent and a pigment in the shade, and stirring well to enable full dissolution. By introducing the isosorbide, it is possible to improve corrosion resistance of the photoresist and improve its thermal performance and it is possible to produce an image with good comprehensive performance and high resolution.

Description

technical field [0001] The invention relates to the field of photoresists, in particular to a bio-based photocurable polyurethane obtained by reacting a bio-based monomer isosorbide and a diisocyanate monomer 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 generally has a large molecular weight, high viscosity, and a large proportion of soft segments. These properties make it have low glass transition temperature, hardness and acid value, and good toughness. These properties are not suitable for application in the field of photoresist. [0003] Isosorbide (ISB), as a new type of bio-b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08G18/34C08G18/32G03F7/027G03F7/004
CPCC08G18/672C08G18/3218C08G18/348C08G18/673G03F7/004G03F7/027
Inventor 刘敬成徐文佳王宽郑祥飞纪昌炜刘仁刘晓亚
Owner JIANGNAN UNIV
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