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Organic coloring agent capable of being used for coloring resin and preparation method of organic coloring agent

A technology of organic colorants and organic solvents, applied in the field of resin-colored colorants and their preparation, can solve problems such as dispersibility, achieve good compatibility, easy access to raw materials, excellent heat resistance and migration resistance

Active Publication Date: 2021-06-25
鞍山辉虹颜料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still some dispersibility problems in resin coloring

Method used

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  • Organic coloring agent capable of being used for coloring resin and preparation method of organic coloring agent
  • Organic coloring agent capable of being used for coloring resin and preparation method of organic coloring agent
  • Organic coloring agent capable of being used for coloring resin and preparation method of organic coloring agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: the preparation of structural formula I compound

[0049] The reaction formula is:

[0050]

[0051] Into a 250mL four-necked flask equipped with a reflux condenser, a water separator, and a thermometer, 6.84g (0.02mol) of N-methyl-6-bromo-anthrapyridone, 0.22g of cuprous iodide, and o-dichlorobenzene were sequentially added. 150ml, 2.44g (0.01mol) of ethylene glycol (2,2'-diamino)diphenyl ether, start stirring, and slowly raise the temperature to 170°C. During the process, the acid-binding agent sodium bicarbonate was gradually added to keep the pH value of the reaction system between 9.5 and 10. Continue to heat up to 180° C. and reflux for 12-15 hours. Sampling liquid chromatography shows that there is no raw material, which is regarded as the end of the reaction. Add water and azeotropically distill the solvent, heat filter the solid in the flask, wash the residual solvent o-dichlorobenzene in the filter cake with ethanol, until the filtrate is basi...

Embodiment 2

[0053] Embodiment 2: the preparation of structural formula I compound

[0054] The difference from Example 1 is that in the above-mentioned preparation process, cuprous chloride of equal mass is used as a catalyst instead of cuprous iodide, and the operation steps of Example 1 are repeated to obtain about 6.86 grams of dry powder of the general formula I compound. The yield About 90%.

Embodiment 3

[0057] Embodiment 3: color feature test

[0058] 0.1 g of the sample obtained in Example 1 was added to 400 g of PET resin, pre-mixed evenly, and injected at 280° C. Electronic color measurement was carried out on the obtained samples, and the results are shown in Table 1.

[0059] Table 1: Color Characteristics

[0060]

[0061] The coloring agent of the present invention is injection molded into red light blue in PET resin at 280 DEG C, has better vividness, and can be used as a coloring agent for resin coloring.

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PUM

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Abstract

The invention discloses a coloring agent capable of being used for coloring resin and a preparation method of the coloring agent. The organic coloring agent provided by the invention is red-light blue, has good heat resistance and dispersibility in resin, and can meet the requirements of temperature resistance and migration resistance in coloring of high-temperature processed resin such as PET and the like. The coloring agent is easy to prepare and has high commercial value.

Description

technical field [0001] The invention belongs to the field of organic colorants. Specifically, the invention relates to a colorant that can be used for resin coloring and a preparation method thereof. The colorant has the characteristics of solvent dyes and exhibits good temperature resistance in various resin colorings , dispersibility and migration resistance, has potential commercial value. Background technique [0002] The development of material science has higher and higher requirements on the performance of colorants. Although there are many colorants on the market, their application performance is mostly unsatisfactory. Especially, high-performance organic colorants used in various resins are more in demand by the industry. Organic colorants can be divided into two categories, one is pigments that are insoluble in water and various application media; the other is various dyes and solvent dyes with certain water-solubility or solvent-solubility. For resin coloring, us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/3437C08L67/02
CPCC08K5/3437C08L67/02
Inventor 孙东洲王永华李德义李其伟
Owner 鞍山辉虹颜料科技有限公司