Ketoxime ester photoinitiator

A technology of photoinitiators and esters, applied in the field of ketoxime ester photoinitiators, can solve the problems of poor thermal stability and poor application performance, and achieve the effect of good application performance

Active Publication Date: 2009-10-28
CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the defects existing in the background technology, the present invention solves its technical problems: aiming at the problems of poor application performance and poor thermal stability of the existing OXE-1 ketoxime ester photoinitiators, a kind of thermal stability is provided Ketoxime ester photoinitiator and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0028] Example 1 The preparation method of 1-diphenyl sulfide-1-cyclopentyl acetone oxime benzyl ester

[0029] Step 1: Preparation of diphenyl sulfide cyclopentyl acetone

[0030] React operation:

[0031] Put 0.2mol diphenyl sulfide, 0.22mol AlCl3 (finely ground), and 150ml dichloroethane into a 500ml four-neck flask, stir, pass through argon protection, and cool in an ice bath. When the temperature drops to 0°C, start Add 0.22mol cyclopentylpropionyl chloride and 42g dichloroethane cyclopentylpropionyl chloride solution dropwise, the temperature is controlled below 10°C, the addition is completed in about 1.5h, the temperature rises to 15°C, continue to stir for 2h, and discharge.

[0032] Post-processing:

[0033]Under stirring, slowly pour the material into dilute hydrochloric acid made of 400g ice and 65ml concentrated hydrochloric acid, separate the lower layer material liquid with a separatory funnel, extract the upper layer with 50ml dichloroethane, combine the extr...

Embodiment 2

[0044] Example 2 The preparation method of 1-(6-o-methylbenzoyl-9-ethylcarbazole)-1-cyclopentylacetone oxime benzyl ester

[0045] Step 1: Preparation of 3-(3-cyclopentapropionyl)-6-o-methylbenzoyl-9-ethylcarbazole

[0046] React operation:

[0047] Put 39.0g N-ethylcarbazole, 25.3g AlCl3 (finely ground), 150ml dichloroethane into a 500ml four-neck flask, stir, pass through argon protection, and cool in an ice bath. When the temperature drops to 0°C , began to dropwise add 25.4g of o-toluyl chloride and 21g of dichloroethane in o-toluyl chloride solution, the temperature was controlled below 10°C, the addition was completed in about 1.5h, and the stirring was continued for 2h, then 25.4 g AlCl3 (finely ground), add 42.2g cyclopentapropionyl chloride and 20g dichloroethane cyclohexanecarbonyl chloride solution dropwise, control the temperature below 10°C, drop it in about 1.5h, then raise the temperature to 15°C, and continue to stir for 2h ,Discharge.

[0048] Post-processi...

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PUM

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Abstract

The invention relates to a ketoxime ester photoinitiator, in particular to a ketoxime ester photoinitiator for a photo-curing material. The ketoxime ester photoinitiator has a chemical structural formula as the right, wherein in a R1 structure, n is an integer of between 0 and 5; m is an integer of between 1 and 6; R2 is methyl, phenyl, substituted phenyl, benzyl or substituted benzyl; and R3 is diphenyl sulfide group, substituted diphenyl sulfide group, carbazole group or substituted carbazole group. The ketoxime ester photoinitiator solves the problems of poor application performance and poor thermal stability of the prior OXE-1 ketoxime ester photoinitiator.

Description

technical field [0001] The invention relates to ketoxime ester compounds, in particular to a ketoxime ester photoinitiator for photocurable materials. Background technique [0002] Photocurable materials (photocurable coatings, inks, photoresists, RGB and BM) mainly composed of unsaturated resins and their monomer materials must be able to undergo polymerization and curing reactions under ultraviolet light, X-rays or laser irradiation. A photoinitiator or sensitizer must be added. These added photoinitiators or sensitizers can generate active groups under the irradiation of certain wavelengths of ultraviolet light, X-rays or lasers, and stimulate the unsaturated groups in the photocurable materials to undergo polymerization reactions, causing the photocurable materials to cure. . [0003] In light-curing materials, some traditional photoinitiators widely used are: benzoin derivatives, biphenyl ketals, α, α-dialkoxyacetophenones, α-hydroxyalkylphenones, α -Aminoalkylphenon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/46C07D209/86C07C319/20C07C323/47
CPCC07C2101/08C07D209/86C07C323/47C08F2/50G03F7/031C07C2601/08C07C319/20C07D209/88C08K5/33
Inventor 钱晓春王兵丁正春
Owner CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS
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