Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sorona is a polymer created by DuPont based on 1,3-propanediol (PDO). It was named and commercialized in 2000. The fibers are claimed to be both soft and extremely stain resistant plus high strength and stiffness. Sorona (also called PTT or 3GT) is poly(trimethylene terephthalate), a co-polymer of Bio-PDO (fermentation-derived 1,3-propanediol), and petroleum derived terephthalic acid (TPA) or dimethyl terephthalate (DMT). Related polymers in this series include polyethylene terephthalate (2GT) and polybutylene terephthalate (polytetramethylene terephthalate) (4GT).

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