Irganox® B 220

Irganox® B 220 by BASF is a blend of 75% tris(2,4-ditert-butylphenyl)phosphite and 25% pentaerythritol tetrakis[3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate]. It is basically a blend of 75% Irgafox® 168 and 25% Irganox® 1010. Acts as a synergistic processing and long-term thermal stabilizer. Maintains original melt flow and offers low color formation. Provides long-term-thermal stability. Irgafox® 168, an organic phosphite of low volatility and particularly resistant to hydrolysis, protects the polymers which are prone to oxidation. Irganox® 1010, a hindered phenolic antioxidant, contributes synergistically to polymer stabilization during processing and provides long-term thermal stability by preventing thermo-oxidative degradation. It is compatible with polyolefin and olefin-copolymers such as polyethylene, polypropylene, polybutene and ethylene-vinyl acetate copolymers, engineering plastics, styrene homo- and copolymers, polyurethanes and elastomers. Its recommended dosage rate is 0.1- 0.25%. It is suitable for food contact applications. Irganox® B 220 is registered in Australia, Canada, China, EU, Japan, Korea, Philippines and USA.