ABSTRACT
Polytrimethylene terephthalate (PTT) – Sorona is one such bio-polymer that has been developed by DuPont. A leading bio-polymer, Sorona contains 37% annually renewable plant-based ingredients. Producing Sorona uses 30% less energy and releases 63% fewer greenhouse gas emissions compared to the production of nylon 6. Compared to nylon 6,6, Sorona fibres consume 40% less energy and reduce greenhouse gas emissions by 56%. Figures 4.1 and 4.2 represent the structure of polymers.
