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Triazine-based compound comprising functionalized alkylthio groups, and photo polymerization initiator

A kind of compound, technology of triazine derivatives, applied in the field of photosensitive compositions

Inactive Publication Date: 2006-03-29
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] An object of the present invention is to provide a class of triazine-based photoinitiators to solve the problems of existing photoinitiators such as compatibility, photoinitiation efficiency and developing process, etc.

Method used

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  • Triazine-based compound comprising functionalized alkylthio groups, and photo polymerization initiator
  • Triazine-based compound comprising functionalized alkylthio groups, and photo polymerization initiator
  • Triazine-based compound comprising functionalized alkylthio groups, and photo polymerization initiator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: the preparation of 3-{4-[2,4-bis(trichloromethyl)-s-triazin-6-yl]phenylthio}propionic acid shown in the following chemical formula 1a

[0052] [chemical formula 1a]

[0053]

[0054] [Step 1: Synthesis of 3-(4-cyanophenylthio)propionic acid]

[0055] Put 20g of 4-fluorobenzonitrile (165 mmol), 20 g of 3-mercaptopropionic acid (188 mmol) and 50 g of potassium carbonate into 300 ml of DMF (dimethylformamide), and keep the bath temperature at 100°C for 20 Hour.

[0056] After the reaction temperature dropped to room temperature, the reaction solution was slowly poured into 1500 ml of distilled water, and then the generated precipitate was removed by filtration. The filtrate was acidified with 2N hydrochloric acid solution (pH reached 2 as determined with pH paper), at which point an organic precipitate formed. After filtering and washing the precipitate with distilled water, the product was dried in a vacuum oven, and its structure was analyzed by NMR (nu...

Embodiment 2

[0062] Embodiment 2: 1,1,1,3,3,3-hexafluoroisopropyl-3-{4-[2,4-bis(trichloromethyl)-s-three represented by the following chemical formula 1b Preparation of oxazin-6-yl]phenylthio}propionate

[0063] [chemical formula 1b]

[0064]

[0065] [Step 1: Synthesis of 3-(4-cyanophenylthio)propionic acid]

[0066] Put 20g of 4-fluorobenzonitrile (165mmol), 20g of 3-mercaptopropionic acid (188mmol) and 50g of potassium carbonate into 300ml of DMF (dimethylformamide), and keep the bath temperature at 100°C for 20 hours.

[0067] After the reaction temperature dropped to room temperature, the reaction solution was slowly poured into 1500 ml of distilled water, and then the formed precipitate was filtered out. The filtrate was acidified with 2N hydrochloric acid solution (use pH paper to ensure the pH reached 2), at which point an organic precipitate formed. The precipitate was filtered and washed with distilled water, and the product was dried in a vacuum oven, and its structure was...

Embodiment 3

[0078] Embodiment 3: the preparation of 2-{4-[2,4-bis(trichloromethyl)-s-triazin-6-yl]phenylthio}acetic acid ethyl ester shown in the following chemical formula 1c

[0079] [chemical formula 1c]

[0080]

[0081] [Step 1: Synthesis of ethyl 2-(4-cyanophenylthio)acetate]

[0082] Put 15g of 4-fluorobenzonitrile (124mmol), 16g of ethyl 2-mercaptoacetate (133mmol) and 25g of potassium carbonate into 100ml of DMF (dimethylformamide), and keep the bath temperature at 130°C for 20 hours.

[0083] After the reaction temperature dropped to room temperature, the reaction solution was slowly poured into 700ml of distilled water, extracted with ether, washed with distilled water, dried with anhydrous magnesium sulfate, and filtered. Next, the volatile materials were evaporated to give the crude product. The crude product was purified by column chromatography using a mixed solvent of hexane and ethyl acetate (3:1 by volume) as an eluent. The product structure was analyzed by NMR (nu...

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Abstract

The present invention relates to a photosensitive composition, and provides a triazine-based compound comprising new functionalized alkylthio groups of which long term storage characteristics at room temperature as well as photochemical activity as a photopolymerization initiator are superior.

Description

[0001] Cross References to Related Applications [0002] This application is based on Application No. 10-1999-0005368 filed with the Korean Industrial Property Office on February 18, 1999, the contents of which are incorporated herein by reference. Background of the invention [0003] (a) Field of Invention [0004] The present invention relates to a photosensitive composition, and more particularly, to a triazine-based compound containing a functionalized alkylthio group which exhibits long-term storage stability at room temperature when used as a photosensitive composition Good, high efficiency when used as a photopolymerization initiator. [0005] (b) Description of related technologies [0006] The photosensitive composition is a polymerizable compound containing unsaturated ethylenic bonds. The compound contains a photopolymerization initiator and can be used for photocurable inks, photosensitive printing plates, various photoresists and color filters for liquid crystal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/24G03C1/675G03F7/031G03F7/029
CPCG03F7/0295C07D251/24
Inventor 金星炫李喆雨金镇奭李在桓崔东昌车爀镇
Owner LG CHEM LTD
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