Light Stabilizer UV-622
Light Stabilizer UV-622, identified by CAS 70198-29-7, is a high molecular weight hindered amine light stabilizer (HALS) that serves as a critical additive in the polymer industry. This oligomeric compound is characterized by its exceptional thermal stability and low volatility, making it particularly effective for applications requiring long-term durability under harsh environmental conditions. Its chemical structure, a polyester of succinic acid and a substituted piperidine ethanol, allows it to function as a highly efficient radical scavenger that inhibits the photo-oxidative degradation of plastics.
In industrial and research contexts, this stabilizer is valued for its superior resistance to extraction and its excellent compatibility with a wide range of thermoplastic substrates. Its high molecular weight ensures that the additive remains within the polymer matrix even during high-temperature processing or prolonged exposure to solvents. By mitigating the harmful effects of ultraviolet radiation, it helps maintain the mechanical integrity, color, and surface appearance of finished goods, thereby extending their functional lifespan.
• This stabilizer is extensively utilized in polyolefin systems, including polyethylene (PE) and polypropylene (PP), where it provides outstanding protection against UV-induced cracking and loss of physical properties. It is particularly effective in thin-section applications such as fibers, tapes, and agricultural films, where its low volatility prevents the stabilizer from migrating out of the material during manufacturing or use.
• In the production of engineering plastics and elastomers like polyurethanes, polyacetals, and polyamides, CAS 70198-29-7 acts as a primary defense against yellowing and surface degradation. Its ability to work synergistically with other UV absorbers and antioxidants allows formulators to create robust stabilization packages that meet demanding performance standards for automotive components and outdoor construction materials.
• The compound is highly favored for use in pigmented systems and carbon black-filled materials, as it does not interfere with the coloristic properties of the final product. Its resistance to extraction by water and detergents makes it an ideal choice for consumer goods, household appliances, and industrial coatings that are frequently exposed to cleaning agents or moisture throughout their service life.
Product Name: Light Stabilizer UV-622
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