Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Carbazole oxime ester lightlike initiating agent

A technology of photoinitiator and carbazole oxime, which is applied in the field of oxime ester photoinitiator and its preparation, can solve the problems of poor sensitivity, thermal stability and solubility, and achieves low production cost, good application performance and product purity. high effect

Active Publication Date: 2009-08-19
CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS
View PDF3 Cites 116 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to overcome the above-mentioned defects, the technical problem to be solved in the present invention is to provide a new type of carbazole with good application performance in view of the relatively poor sensitivity, thermal stability and solubility of existing carbazole oxime ester photoinitiators. Oxime ester photoinitiator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbazole oxime ester lightlike initiating agent
  • Carbazole oxime ester lightlike initiating agent
  • Carbazole oxime ester lightlike initiating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of 1-(6-o-methylbenzoyl-9-ethylcarbazole)-1-cyclohexyl ketone oxime ethyl ester

[0032] Step 1: Preparation of 3-(3-cyclohexyl)-6-o-methylbenzoyl-9-ethylcarbazole

[0033] Drop into 39.0g N-ethylcarbazole, 25.3g AlCl in the 500ml four-necked flask 3 (grind), 150ml of dichloromethane, stir, pass through argon protection, and cool in an ice bath. When the temperature drops to 0°C, start to drop 25.4g of o-toluyl chloride and 21g of dichloromethane's o-methyl Benzoyl chloride solution, the temperature is controlled below 10°C, the addition is completed in about 1.5h, and the stirring is continued for 2h, then 25.4g of AlCl is added to the flask 3 (Grind finely), add dropwise 29.3g of cyclohexanecarbonyl chloride and 20g of dichloromethane cyclohexanecarbonyl chloride solution, control the temperature below 10°C, drop it in about 1.5h, then raise the temperature to 15°C, continue to stir for 2h, and discharge .

[0034] Post-processing:

[0035] ...

Embodiment 2

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

[0046] Drop into 39.0g N-ethylcarbazole, 25.3g AlCl in the 500ml four-necked flask 3 (grind), 150ml of dichloroethane, stir, pass into argon protection, and cool in an ice bath. When the temperature drops to 0°C, start to drop 25.4g of o-toluyl chloride and 21g of dichloroethane. Toluyl chloride solution, the temperature is controlled below 10°C, the addition is completed in about 1.5h, and the stirring is continued for 2h, then 25.4g of AlCl is added to the flask 3 (grind finely), dropwise add 42.2g of cyclopentanoyl chloride and 20g of dichloroethane cyclohexanecarbonyl chloride solution, keep the temperature below 10°C, drop it in about 1.5h, then raise the temperature to 15°C, continue to stir for 2h, and material.

[0047] Post-processing:

[0048] Under stirring, slowly pour the material into dilute hydrochloric acid made of 400g ice and 65ml concentrated hydrochloric acid, se...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the photoinitiator technical field, in particular to an oxime ester photoinitiator and a preparation method thereof. A carbazole oxime ester photoinitiator has a structural general formula as the right formula, R=formula (1), n=0-5, m=3 or 4, R radical is aliphatic ketone with cyclane, the cyclane is cycloaliphatic ring from cyclopropane to cyclooctane, branched-chain aliphatic hydrocarbon connects the cyclane and the ketone, and the chain usually has 0-6 carbon atoms. The carbazole oxime ester photoinitiator with the structure is a brand-new compound with good photoinitiator performance, and solves the problem of poor sensitivity, thermal stability and solubility of the existing carbazole oxime ester photoinitiators.

Description

technical field [0001] The invention relates to the technical field of photoinitiators, in particular to an oxime ester photoinitiator and a preparation method thereof. Background technique [0002] Photocurable materials (photocurable coatings, inks, photoresists, CF 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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F2/46C07D209/86
CPCC07D209/86C08F2/50C08F2/46C08K5/3417
Inventor 钱晓春王兵吴锁妹
Owner CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com