antioxidant 1520 is a liquid phenolic antioxidant for processing and long-term thermal stabilization. It is non-staining, non-discoloring and low volatility. Irganox 1520 is suitable for use in organic substrates such as elastomers, plastics etc. It can be used with other additives such as secondary antioxidants, light stabilizers and other
US3451458A US440270A US3451458DA US3451458A US 3451458 A US3451458 A US 3451458A US 440270 A US440270 A US 440270A US 3451458D A US3451458D A US 3451458DA US 3451458 A US3451458 A US 3451458A Authority US United States Prior art keywords rubber silica parts weight percent Prior art date 1961-02-15 Legal status (The legal