AO-565 is an excellent colorless stabilizer, it can be soluble in a variety of organic solvents but insoluble in water. Used as an antioxidant and photothermal stabilizer for various resins. It is mainly used for the protection of polystyrene, ABS resin, polybutadiene, SBS, SAN and rubber unfilling bonds, with an amount of 0.1-1.0%
CHEMICAL STRUCTURES：
CAS NO.：991-84-4
Physical Properties：
Appearance: white powder
Melting point: 92-95 °C
Molecular weight: 588.95
Transmittance: 425nm >= 95%;
500nm >= 98%
Application：
AO-565 is a polymer multifunctional hindered phenolic antioxidant, which is mainly suitable for the post-processing and stable treatment of unsaturated rubber. It is very effective for elastomers and can protect the material from thermal oxidation and degradation in the production,processing and final use process. It is also an excellent antioxidant and photothermal stabilizer for a variety of resin, with the characteristics of small addition amount, low volatility, high color fastness, and can prevent the formation of gel.