Manufacturer of 2,2-(1,4-Phenylene)bis-4H-3,1-benzoxazin-4-one: Properties and Applications

Ningbo Inno Pharmchem Co., Ltd. is a well-known supplier and manufacturer of specialty chemicals and pharmaceutical intermediates. One of their most popular products is the 2,2-(1,4-Phenylene)bis-4H-3,1-benzoxazin-4-one, also known as Cytec Cyasorb UV 3638 or simply Cytec 3638.

Properties

The 2,2-(1,4-Phenylene)bis-4H-3,1-benzoxazin-4-one is a type of ultraviolet (UV) absorber and light stabilizer. It is a white to yellowish powder that is insoluble in water but soluble in organic solvents such as ethanol, methanol, and acetone. The chemical formula is C26H16N2O4, and the molecular weight is 424.42 g/mol.

The Cyasorb UV 3638 has a maximum absorption peak at 316 nm and a molar extinction coefficient of 39000 L/mol/cm. It is stable to heat and light and has a melting point of 282-284°C. It is also compatible with a wide range of polymers such as polypropylene, polyethylene, PVC, polycarbonate, and polyester.

Applications

The 2,2-(1,4-Phenylene)bis-4H-3,1-benzoxazin-4-one has various applications in different industries, particularly in the plastics and coatings industries. Its main function is to protect the material from the harmful effects of UV radiation, which can cause degradation, discoloration, and other types of damage.

In the plastics industry, the Cyasorb UV 3638 is commonly used as a UV absorber and light stabilizer in polyolefin films, fibers, and molded products. It can improve the weatherability and lifespan of the material, as well as enhance its color retention and gloss. It is also effective in reducing the yellowing and brittleness of the plastic.

In the coatings industry, the Cyasorb UV 3638 is used as a UV absorber and light stabilizer in various types of coatings such as paints, varnishes, and lacquers. It can improve the durability and resistance of the coating against UV radiation, weathering, and other environmental factors. It is also effective in maintaining the color and appearance of the coating.

Other applications of the Cyasorb UV 3638 include:

- Adhesives and sealants: It can improve the adhesion and flexibility of the material, as well as prevent the degradation and discoloration caused by UV radiation. - Textiles and fibers: It can improve the color fastness and durability of the material, as well as prevent the degradation and yellowing caused by UV radiation. - Personal care products: It can improve the stability and shelf life of the product, as well as prevent the degradation and discoloration caused by UV radiation.

Conclusion

The 2,2-(1,4-Phenylene)bis-4H-3,1-benzoxazin-4-one, also known as Cytec Cyasorb UV 3638 or simply Cytec 3638, is a versatile and effective UV absorber and light stabilizer produced by Ningbo Inno Pharmchem Co., Ltd. It has various applications in different industries, particularly in the plastics and coatings industries, where it can improve the weatherability, durability, and appearance of the material. If you are looking for a reliable and high-quality UV absorber and light stabilizer, the Cyasorb UV 3638 is definitely worth considering.

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