Preparation method and application of 2-phenyl-2-imidazoline and pyromellitic dianhydride adduct

A technology of pyromellitic anhydride and phenyl imidazoline, which is applied in the field of polymer synthetic materials to achieve the effect of eliminating gloss

Inactive Publication Date: 2019-05-31
阜阳市诗雅涤新材料科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The search also found that the Chinese patent CN104744989B (Huangshan Huahui) mentioned epoxy resin matting curing agent, which adopts polyacid and polyamine addition reaction, and the materials involved are ethylene polyamine, citric acid, itaconic acid , fumaric acid, tartaric acid, etc., no pyromellitic anhydride

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  • Preparation method and application of 2-phenyl-2-imidazoline and pyromellitic dianhydride adduct
  • Preparation method and application of 2-phenyl-2-imidazoline and pyromellitic dianhydride adduct
  • Preparation method and application of 2-phenyl-2-imidazoline and pyromellitic dianhydride adduct

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Embodiment Construction

[0036] The embodiments of the present invention will be described in detail below. It should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.

[0037] The raw materials used in the present invention, unless otherwise specified, are conventional commercially available products; the methods used in the present invention, unless otherwise specified, are conventional methods in the art.

[0038] A preparation method of 2-phenylimidazoline and pyromellitic anhydride adduct, the steps are as follows:

[0039] (1) Synthetic 2-phenylimidazoline, its raw material constituents and parts by weight are respectively:

[0040] Benzonitrile or benzaldehyde 100-1000 parts;

[0041] Ethylenediamine 90-1050 parts;

[0042] 2-10 parts of organic amine catalyst;

[0043] A solvent is used in the synthesis process, and the amount of the solvent is 40%--100% of the total mass of benzonitrile or benzaldehyde, ethylene...

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Abstract

The invention relates to a preparation method of 2-phenyl-2-imidazoline and pyromellitic dianhydride adduct. The preparation method comprises the steps of (1) synthesizing 2-phenyl-2-imidazoline; (2)dropwise adding the 2-phenyl-2-imidazoline of the step (1) into pyromellitic dianhydride solution or suspension emulsion in equal molar ratio, allowing them to react to generate a salt adduct, treating with a centrifuge, drying by cyclone, and collecting with a trap to obtain the 2-phenyl-2-imidazoline and pyromellitic dianhydride adduct. The preparation method has the advantages that the final product has organic amine functional groups and carboxylic functional groups; the product has the catalytic curing function of imidazole and the reacting function of carboxylic acid, is mainly applied to the field of matte powder paints to mainly function to eliminate gloss, allows a coating to gain very low gloss and evenly zero gloss, which is hard for common materials to achieve, may also act asan epoxy resin curing agent and is also applicable as epoxy curing agents or catalysts in other fields.

Description

technical field [0001] The invention belongs to the technical field of polymer synthetic materials, in particular to a preparation method and application of adducts of 2-phenylimidazoline and pyromellitic anhydride. Background technique [0002] Imidazoline is the most representative species of five-membered nitrogen-containing heterocyclic compounds, and most drugs, metal organic catalysts, and corrosion inhibitors contain this structural fragment in the key structure. It is also a strong alkaline solid with a low melting point. In the research of medicine and pesticides, imidazoline derivatives play a very important role, such as: vasodilators, antihypertensive tablets, and antibacterial drugs. They are widely used in clinical medicine. New antibacterial drugs of imidazoline derivatives are constantly emerging: miconazole, clopeta, clotrimazole, econazole, ketoconazole, etc. It is of great significance to synthesize imidazoline safely and with high quality. [0003] 2-Phe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/083C07C63/331C07C257/18C08G59/50C09D5/03C09D163/00
Inventor 王焱王浩陈超王鹏飞王娜娜王继萍赵帆田自力冯浩杨婷武华睿赵志远
Owner 阜阳市诗雅涤新材料科技有限公司
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