Styrene is now recognized as a vital ingredient in the petrochemical industry and its increasing use is the production of polystyrene, acrylonitrile-butadiene-styrene resins (ABS) styrene-acrylonitrile (SAN) synthetic styrene butadiene resins (SBR) resins Ionic and in coloring and coating is polystyrene as a thermoplastic One has found a wide variety of uses in molding techniques, such as its hard type in the production of plastic bottles, the radio-television cabinet, and the manufacture of a refrigerator body, and of its usual type in the production of films for packing fruits and vegetables. Sponge polystyrene can be used as acoustic thermal insulation in cold houses and prefabricated houses.