Polytrimethylene Terephthalate (PTT) is a semi crystalline polymer manufactured by polycondensation of trimethylene glycol with either a dimethyl terephthalate or a terephthalic acid. It finds major application in industrial and residential carpet market. Polytrimethylene terephthalate has similar optical properties as that of polyethylene terephthalate fibers. However, its elastic recovery is beyond that of polyethylene terephthalate (PET) and polybutylene terephthalate (PBT). ... Read more