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Hydroxy-ketone photoinitiator containing multiple functional groups for reducing and eliminating VOC (volatile organic compounds) emission

A technology of photoinitiator and group hydroxy ketone, which is applied in the preparation of carbon-based compounds, organic compounds, sulfides, etc., and can solve the problems that cannot meet the requirements and VOC emission requirements.

Active Publication Date: 2012-06-20
CHANGSHANG NEWSUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above five photoinitiator varieties cannot meet the VOC emission requirements after light irradiation
It should be pointed out that none of them can meet the relevant requirements of the industry standard YC / T 207-2006 of the China Tobacco Monopoly Administration

Method used

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  • Hydroxy-ketone photoinitiator containing multiple functional groups for reducing and eliminating VOC (volatile organic compounds) emission
  • Hydroxy-ketone photoinitiator containing multiple functional groups for reducing and eliminating VOC (volatile organic compounds) emission
  • Hydroxy-ketone photoinitiator containing multiple functional groups for reducing and eliminating VOC (volatile organic compounds) emission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0138] Example 1. Preparation of 1,10-diphenyl-2,9-dihydroxy-2,9-dimethylnonane-1,10-dione

[0139]

[0140] 1A, reference [TETRAHEDRON LETTERS 48 (46), 8230-8233 (2007)] method synthetic diethyl methyl malonate, get 34.8g diethyl methyl malonate and 24.4g1,6-dibromohexyl In a 500ml three-necked flask equipped with a condenser, add 50ml of ethanol solution containing 13.6g of sodium ethoxide dropwise under stirring at room temperature. After the dropwise addition, slowly raise the temperature to 55°C-65°C, react for 2h, continue to raise the temperature and reflux for 2h, After the reaction is completed, remove the solvent under normal pressure and then under reduced pressure until the temperature of the kettle reaches 100°C. After cooling down, mix the obtained organic phase with 400ml of 10% aqueous sodium hydroxide solution, and reflux for 14 hours for hydrolysis. After the hydrolysis is completed, pour the reaction solution into 400ml of 10% sodium hydroxide In dilute h...

Embodiment 2-6

[0146] The preparation methods of the compounds in Examples 2-6 are similar to those in Example 1, except that the aromatic hydrocarbons shown in Table 3 are used as starting materials in the synthesis step 1C.

[0147] Table three compounds of the present invention

[0148]

Embodiment 7-11

[0150] The preparation methods of the compounds in Examples 7-11 are similar to those in Example 1, except that the polyhalogenated compounds (ZXn) shown in Table 4 were used as starting materials in the synthesis of 1A.

[0151] Table 4 Compounds of the present invention

[0152]

[0153]

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Abstract

The invention discloses a structure as shown in formula I or formula II and a preparation method of hydroxy-ketone photoinitiator containing multiple functional groups, which is capable of reducing VOC (volatile organic compounds) emission until the VOC emission is totally eliminated. Compared with the conventional monomolecular hydroxy-ketone photoinitiators, the hydroxy-ketone photoinitiator provided by the invention is outstandingly characterized in that by the coupling of the multiple active functional groups, the photo-initiation activity is improved and at the same time the structures and the features of by-products produced in the photodecomposition process are changed; the by-products have the capability of reducing the VOC emission until the VOC emission is totally eliminated; the disadvantages of strong smell and poisonousness and great transfer ability of the conventional same type of photoinitiator with single functional group are overcome; and the hydroxy-ketone photoinitiator has good application prospect to the fields of photocureable coating, printing ink and the like.

Description

technical field [0001] The present invention relates to the structure and preparation method of novel photoinitiators in the field of ultraviolet light curing (UV curing), in particular to the structure and preparation method of a multifunctional hydroxy ketone photoinitiator that can reduce until the emission of volatile organic compounds (VOC) is eliminated. Preparation. Background technique [0002] 1. About Hydroxyketone Photoinitiator [0003] Hydroxyalkyl aryl ketone photoinitiator refers to the general term for photoinitiators containing the following structures: [0004] [0005] This type of photoinitiator contains one or more ketone functional groups. Among the two-side structures of these ketone functional groups, one side is an aryl group, and the other side is an alkyl group containing an alpha hydroxyl group. [0006] Hydroxyalkyl aryl ketone photoinitiators have excellent characteristics such as fast initiation speed, high initiation efficiency, and littl...

Claims

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Application Information

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IPC IPC(8): C08F2/48C07C49/83C07C49/84C07C45/64C07C323/22C07C319/20C07C225/22C07C221/00C07F7/08C07D209/86
Inventor 叶正培王辉明林海兰胡亚林周谭
Owner CHANGSHANG NEWSUN CHEM IND
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