| abstract |
Flame retardant thermoplastic compositions of polystyrene and polyolefin, thermostable and unalterable to light, comprising a bicyclic phosphate compound (s), a flame retardant (s) containing halogen and polystyrene or polyolefin resins . These compositions are less likely to take on colors, to change melting viscosity or to lose their mechanical strength when they are subjected to the treatment of the polymer and to the end use. |