Styrene acrilonitrile copolymer is a transparent and amorph thermoplastic polymer which consists of styrene and acrylonitrile monomers. Acrylonitrile portion of SAN relatively changes between 15 to 35% in accordance with the desired commercial product. The more acrylonitrile provides more rigidity, temperature and chemical resistance and also increases the mechanical qualifications of the SAN. SAN is a convenient material for producing transparent equipments.
