Brominated polystyrene (BPS) is a brominated organic flame retardant with good mechanical and chemical properties such as high flame retardancy, thermal stability and light stability. It is widely used in polybutylene terephthalate Glycol esters, polyethylene terephthalate ester, polyphenylene oxide, nylon -66 and other engineering plastics. Brominated polystyrene is mainly used in PA, PBT, PET and other thermoplastic resins, the use of the process needs and antimony compounds used in conjunction. Flame retardant polyester, the addition of 10% (enhanced) ~ 17% (non-enhanced) can be given the material UL94V-O grade (0.8mm), flame retardant polyamide, the amount of 21% Material UL94V-O grade (0.8mm).