Antioxidant KY-405, chemically identified as 4,4'-bis(phenylisopropyl)diphenylamine and assigned CAS No. 10081-67-1, represents a significant advancement in polymer stabilization technology. Known also as Antioxidant 445, this tasteless, non-toxic, and light-colored additive is specifically engineered to protect a broad spectrum of materials from degradation caused by heat, light, and aging. Its superior performance makes it an indispensable component for extending the lifespan and maintaining the integrity of various industrial products.

This high-performance antioxidant typically presents as a white crystal powder or granule. It boasts a melting point greater than 95ºC, ensuring stability under a wide range of processing conditions. Antioxidant KY-405 exhibits excellent solubility in common organic solvents such as acetone, ethyl acetate, and toluene, facilitating easy dispersion within polymer matrices. Critically, it is virtually insoluble in water, gasoline, alcohol, and methanol, which contributes to its long-lasting protective effect. A key advantage of Antioxidant KY-405 is its high molecular weight and low volatility, attributes that ensure its antioxidant persistence significantly surpasses that of traditional phenolic antioxidants like SP, 1010, or 264, making it an ideal substitute for these older chemistries.

The applications of Antioxidant KY-405 are remarkably diverse, spanning across numerous sectors. It is widely utilized in a myriad of elastomers, including polyethylene, polypropylene, and PVC, particularly for use in plastic color masterbatches. Its protective qualities are also highly valued in polyurethane foam plastics, rubber wires, and cables, where it provides exceptional heat resistance, light resistance, and anti-aging properties, especially in neoprene color cable sheaths. Furthermore, it finds applications in food packaging materials and adhesives, underscoring its non-toxic nature. Beyond polymers, Antioxidant KY-405 serves effectively as an antioxidant for lubricating oils and offers robust protection for acrylate rubber and polyether polyol against heat and light-induced aging. It also demonstrates a strong synergistic effect when combined with sulfur antioxidants, further enhancing its protective capabilities.

One of the distinctive features of Antioxidant KY-405 is its non-staining characteristic, making it perfectly suitable for light-colored and transparent products, where discoloration would be detrimental. For typical rubber applications, a general consumption rate of 1-3 parts per hundred rubber (phr) is recommended, allowing for effective dispersion without negatively impacting the rubber's vulcanization characteristics. Its ability to offer anti-aging protection while being tasteless, non-toxic, and light-colored distinguishes it from many conventional solutions that may pose environmental or health concerns, or cause aesthetic issues. It even prevents contamination in carbon black rubber products, maintaining their quality and appearance.

For industries requiring advanced material protection, selecting the right antioxidant is crucial. Antioxidant KY-405 stands out as a superior choice for enhancing the longevity and performance of rubber and plastic products. For those looking to buy antioxidant KY-405 or seeking a reliable antioxidant manufacturer, understanding its comprehensive benefits and specifications is essential. Whether you need a consistent elastomer stabilizer supplier or wish to inquire about the antioxidant 445 price for bulk industrial antioxidant purchase, focusing on the product's quality and proven efficacy will ensure optimal outcomes for your applications.