Antioxidant 565 is a multifunctional polymeric hindered phenolic antioxidant, after processing stability treatment is mainly applicable to the unsaturated rubber, is very effective for elastic body, can protect the material in the production, thermal oxidative degradation does not occur during processing and end use. It is an excellent antioxidant and photothermal stabilizer of many resins. It has the characteristics of small amount, low volatility, high color fastness, and can prevent the formation of gel