P,P'-oxybis(benzenesulfonyl semicarbazide) (Foaming Agent BH) is a high-temperature foaming agent with a decomposition temperature of 220–260 °C and a foaming volume of 100–150 ml/g. This product is suitable for the preparation of thermoplastic polyether ester elastomer materials. It offers excellent resistance to high and low temperatures, weathering and chemicals, as well as the advantages of being mouldable and reusable like thermoplastics. It is gradually replacing thermosetting rubber materials and is widely used in the automotive industry, rail transport, household goods and other sectors.
