Bis(2,2,6,6-tetramethyl-4-piperidyl) Sebacate (UV-770)

Product Overview

UV Light Stabilizer 770, chemically known as Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, represents a high-efficiency hindered amine light stabilizer (HALS) designed for extensive polymer protection. This advanced specialty chemical is engineered to mitigate the degradative effects of ultraviolet radiation, thereby extending the service life of plastic materials exposed to outdoor environments. Unlike conventional ultraviolet absorbers, this compound functions through a regenerative radical scavenging mechanism, offering superior long-term stability without being consumed rapidly during the stabilization process.

Manufactured under strict quality control protocols, our UV-770 ensures consistent performance across various batches. The product exhibits excellent thermal stability, making it suitable for high-temperature processing conditions often encountered in polymer extrusion and molding operations. Its low volatility and high molecular weight contribute to reduced migration and extraction losses, ensuring durable protection throughout the product lifecycle.

Mechanism Of Action

The efficacy of this hindered amine light stabilizer lies in its ability to interrupt the photo-oxidative degradation cycle. By trapping free radicals generated during UV exposure, it prevents chain scission and cross-linking within the polymer matrix. This regenerative cycle allows the stabilizer to remain active for extended periods, providing sustained protection against weathering, yellowing, and loss of mechanical properties. Consequently, it outperforms traditional UV absorbers in many demanding applications.

Key Performance Advantages

• Exceptional light stability compared to standard ultraviolet absorbers.
• Synergistic effects when combined with antioxidants improve overall heat resistance.
• Excellent compatibility with a wide range of polymer matrices including polyolefins.
• Odorless formulation that preserves the original scent of the substrate.
• Minimal impact on the initial color of the polymer, maintaining aesthetic quality.
• High purity assay ensures reliable performance in critical applications.

Technical Specifications

Our commitment to quality is reflected in the rigorous testing parameters applied to every production lot. The following table outlines the standard specification profile for UV Light Stabilizer 770.

Industrial Applications

This hindered amine light stabilizer is extensively utilized in the stabilization of polyethylene, polypropylene, polystyrene, ABS resin, polyester, and polyurethane systems. The recommended dosage typically ranges from 0.1% to 0.5%, depending on the specific resin type and the severity of the exposure conditions. For optimal results, it is advisable to use this stabilizer in conjunction with primary antioxidants to achieve a synergistic enhancement of thermal oxidative stability. This combination provides maximum protection during high-temperature processing and subsequent outdoor weathering.

Furthermore, the product demonstrates excellent compatibility with other ultraviolet light absorbing agents, allowing formulators to design comprehensive stabilization packages. Its non-corrosive and non-flammable nature simplifies handling and storage requirements, making it a safe choice for industrial manufacturing environments. Whether used in agricultural films, automotive components, or packaging materials, UV-770 delivers consistent weatherability.

Quality Assurance And Storage

Each shipment is accompanied by a Certificate of Analysis (COA) to verify compliance with stated specifications. UV Light Stabilizer 770 should be stored in a cool, dry, and well-ventilated area away from direct sunlight and moisture. The standard packaging consists of cardboard drums lined with plastic bags, with a net weight of 25kg per drum. Customized packaging solutions are available upon request to meet specific logistical needs. As a non-toxic and environmentally compliant substance, it adheres to relevant transport regulations, ensuring safe global shipment.