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

A technology of alkylthio groups and triazine compounds, applied in the field of photosensitive compositions

Inactive Publication Date: 2003-08-20
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

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Effect test

Embodiment Embodiment 1

[0046] The present invention is described in further detail using the following specific examples. However, these Examples are only for illustrating the present invention, and the present invention is not limited by these Examples. [Examples] Example 1: Preparation of 3-{4-[2,4-bis(trichloromethyl)-s-triazin-6yl]phenylthio}propionic acid represented by the following chemical formula 1a

[0047] [Chemical formula 1a]

[0048] [The first step: Synthesis of 3-(4-cyanophenylthio)propionic acid]

[0049]20g of 4-fluorobenzonitrile (165 mmol), 20g of 3-mercaptopropionic acid (188 mmol) and 50g of potassium carbonate were put into 300ml of DMF (dimethylformamide), and the bath temperature was maintained at 100°C for 20 Hour.

[0050] After the reaction temperature was lowered to room temperature, the reaction solution was slowly poured into 1500 ml of distilled water, and then the resulting precipitate was removed by filtration. The filtrate was acidified with 2N hydrochloric a...

Embodiment 3

[0070] Example 3: Preparation of ethyl 2-{4-[2,4-bis(trichloromethyl)-s-triazin-6-yl]phenylthio}acetate represented by the following chemical formula 1c

[0071] [Chemical formula 1c]

[0072] [The first step: Synthesis of ethyl 2-(4-cyanophenylthio)acetate]

[0073] 15 g of 4-fluorobenzonitrile (124 mmol), 16 g of ethyl 2-mercaptoacetate (133 mmol) and 25 g of potassium carbonate were put into 100 ml of DMF (dimethylformamide), and the bath temperature was kept at 130° C. for 20 hours.

[0074] After the reaction temperature dropped to room temperature, the reaction solution was slowly poured into 700 ml of distilled water, extracted with ether, washed with distilled water, dried over anhydrous magnesium sulfate, and filtered. Next, the volatiles 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 eluent. The product structure was analyzed by NMR (nuclear m...

Embodiment 10

[0112] A photosensitive composition was prepared according to the same method as in Example 1, which contained the components shown in Table 10 below including the compound of Chemical Formula 1a of Example 1, and then the condition of the film on the glass surface was observed through an optical microscope, and it could be seen that a clear formation was formed graphics.

[0113] Classification

Raw material name

Content (parts by weight)

Pigment

C.I. Pigment Red 177

90

adhesive

BzMA:MAA=75:25

Mw: 35,000

50

polymerizable compound

Dipentaerythritol hexaacrylate

40

photopolymerization initiator

3-{4-[2,4-bis(trichloromethyl)-

s-Triazin-6-yl]phenylthio}propionic acid

30

Organic solvents

PGMEA (boiling point: 146°C)

790

[0114] A photosensitive composition was prepared according to the same method as in Example 1, ...

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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-REFERENCE TO RELATED APPLICATIONS [0002] This application is based on Application No. 10-1999-0005368 filed in 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, more particularly, to a triazine-based compound containing a functionalized alkylthio group, when used as a photosensitive composition, the compound has long-term storage stability at room temperature Good, high efficiency when used as photopolymerization initiator. [0005] (b) Description of Related Art [0006] The photosensitive composition is a polymerizable compound containing an unsaturated ethylenic bond, the compound contains a photopolymerization initiator, and can be used for photocurable inks, photosensitive printing plates, various photoresists and color filters for liquid crystal displays, ...

Claims

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Application Information

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IPC IPC(8): C07D251/24G03F7/029
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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