Polyethylene Terephthalate (PETP) - Polymer Library
Depolymerization of polyethylene terephthalate in supercritical ..
Terephthalate is used in the synthesis of polyethylene terephthalate (abbreviated PET or PETE), a plastic polymer with many commercial uses including the production of plastic beverage bottles.
Degradation and Recyclability of Poly (Ethylene Terephthalate)
According to Wikipedia, it "can be semi-rigid to rigid, depending on its thickness, and is very lightweight." Polyethylene Terephthalate serves as an efficient moisture barrier, specifically as a barrier to alcohol and solvents, and is used in cosmetics and beauty products to bond ingredients and increase the thickness of formulas.
Polyesters (Thermoplastic) PETP, PBT, PET
In the last few years, significant technology improvements associated with PET production have occurred. The main goal of these improvements has been to drastically reduce the production cost of PET, maximizing profitability. Eastman Chemical has developed a new process to produce PET, and is now constructing a new 350,000 t/y PET plant in South Carolina (USA) for making PET based on this process. It is scheduled for completion in 2007. Eastman Chemical is also considering building a 700,000 t/y PET plant to be on line by 2009. Typically, PET production plants start from purified terephthalic acid as a raw material. Eastman Chemical’s new process, called the IntegRex™ process, produces PET from an integrated plant starting with p-xylene. The integrated plant combines the production of polymer-grade terephthalic acid and PET. The IntegRex™ process incorporates recent process improvements to produce Eastman polymer-grade terephthalic acid (EPTA) and to produce PET. Eastman claims that the manufacturing cost of its new process is approximately 1/3 lower than conventional technology, and that the new process is fully capable of producing the higher quality solid-state grades used in blow molded PET bottles.