Styrene acrylonitrile resin is a copolymer plastic consisting of styrene and acrylonitrile. Styrene oxide is an epoxide derived from styrene. Acrylonitrile butadiene styrene is a common example. A grafted acrylic ester elastomer is introduced during the copolymerization of styrene and acrylonitrile. ABS is derived from acrylonitrile, butadiene, and styrene. Acrylonitrile butadiene styrene (ABS) is a material that is stronger than pure polystyrene. SBR is derived from two monomers, styrene and butadiene. Copolymers are formed with ethylene or styrene. TBBPA is also used as an additive in acrylonitrile butadiene styrene (ABS). Polystyrene (PS) is a synthetic aromatic hydrocarbon polymer made from the monomer known as styrene. Plastic stock trays are generally injection moulded from a high-impact styrene such as polystyrene. ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene. The process of depolymerizing polystyrene into its monomer, styrene, is called pyrolysis. It is worthy to note the polystyrene must undergo pyrolysis to turn into styrene oil. It is also used in insecticides, lacquers, varnishes, waxes, oil stains, and styrene resins.