TRIS(TRIBROMONEOPENTYL)PHOSPHATE Chemical name: Tris(tribromoneopentyl)phosphate Brand Name:RK-370 Counter Brand: FR-370 CAS Number: 19186-97-1 Chemical Formula: C15Br9H24PO4 Molecular Weight: 1018.5 Application: RK-370 is an additive flame retardant developed for applications such as PP and HIPS to reach class V-2 according to the UL 94 standard, with outstanding UV and light stability. The chemical structure of the brominated part is responsible for its excellent UV and light stability leading to a good appearance of the molded part. The high melting temperature of RK-370 (181°C) permits production of highly filled masterbatch concentrates. In addition as RK-370 melt blendable and melts at the processing temperature of PP, it is easy to process and can improve flowability. It solves the previously unanswered problem of blooming in flame retardant grades of PP.