NAUGARD™ 445 Granular is an excellent-performance amine antioxidant with significant synergy with phenolics, particularly effective in extreme heat and oxygen environments.
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NAUGARD™ 445 granular is an aromatic amine antioxidant and heat stabilizer for rubber and plastic. NAUGARD™ 445 amine antioxidant is featured with excellent stability, color retention, and ultra-low volatility.
NAUGARD™ 445 provides exceptional protection to polymer systems, including plastics, elastomers, coatings, adhesives, and various other applications. It also offers protection from peroxide degradation and scorching during the processing of polyurethane and polyol systems. This antioxidant provides non-discoloring and strong synergy with other types of stabilizer packages, such as phenolics and phosphites.
Form: Granules
Color: White
CAS number: 10081-67-1
EINECS number: 233-215-5
Molecular weight: 406 g/mol
Melting point: 98°C–100°C
Color APHA: 20
Specific gravity (@ 55°C): 1.14
Flash point: 277°C
Primary Chemistry: 4,4'-Bis (α,α-dimethylbenzyl) diphenylamine
Low performance of amine oxidants in extreme temperatures and weathering conditions Synergy with phenolic and phosphite antioxidants High volatility of commercially available amine antioxidants High loading rate of traditional amine antioxidants and adsorption onto fillers Long lead time and high minimum order quantity of specialty amine antioxidants Dusting and handling issues of powder amine antioxidants Scorching and stability issues during the processing of foams and polyurethane products
Natural and synthetic rubber products, such as NBR, SBR, and EAM Thermoplastic and polyolefin systems, polyurethanes, foams, spandex, and polyol formulations Elastomeric coatings, latex, and hot-melt adhesives
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