SpeedBlock AO1

SpeedBlock AO1 is a highly efficient non discolouring sterically hindered phenolic antioxidant for use in polymer processing. SpeedBlock A01 provides long term thermal stability at ppm addition levels and is typically used for polyolefin processing at 0.1 - 0.5%.

CAS no. 6683-19-8
Chemical name Tetrakis[methylene(3,5-di-tert-butyl-4-hydroxyhydro-cinnamate)]methane