UV Absorber 3638

Product Overview

UV Absorber 3638 represents a advanced class of benzoxazinone-based ultraviolet stabilizers engineered for high-performance polymer applications. Chemically known as 2,2-(1,4-Phenylene)bis(4H-3,1-benzoxazin-4-one), this compound delivers superior protection against UV degradation while maintaining exceptional thermal resistance. It is specifically formulated for industries where processing temperatures exceed standard limits, such as polyester, polycarbonate, and nylon manufacturing. Our supply ensures high purity levels suitable for demanding optical and food contact applications.

Key Performance Features

This UV absorber distinguishes itself through a unique combination of thermal stability and optical neutrality. Unlike traditional stabilizers, it exhibits minimal color contribution, making it ideal for clear films and lenses. The compound remains stable during high-temperature extrusion and molding processes, ensuring consistent performance throughout the product lifecycle.

• Exceptional absorption across both UVB and UVA regions for comprehensive protection.
• High thermal stability with TGA decomposition onset above 370 degrees Celsius.
• FDA approved for use in food contact packaging materials, particularly PET.
• Excellent compatibility with polymer matrices without affecting physical properties.
• Low volatility and migration resistance ensure long-term durability.

Technical Specifications

Industrial Applications

The primary application scope includes polyester films, fibers, and containers where clarity and UV resistance are critical. It is extensively used in polycarbonate and PETG molding for automotive and electronic components. The LED industry utilizes this material for diffusion plates that require strict initial color standards. Additionally, its regulatory compliance allows for safe incorporation into food packaging solutions, providing brand owners with confidence in safety and performance.

Storage and Handling

To maintain optimal quality, containers should remain tightly closed in a cool, dry environment. Avoid exposure to direct sunlight or moisture during storage. Standard industrial safety precautions apply during handling. We provide comprehensive documentation including Certificates of Analysis for every batch to ensure compliance with international quality standards.