TPX™ (Polymethylpentene) is a transparent, heat resistant plastic from Mitsui Chemicals. It is low density material among thermoplastics currently available for commercial use. TPX™ has gas permeability over 10 times higher than polyethylene (PE). It shows greater transparency than polycarbonate (PC), polypropylene (PP) and polyester. In addition, it has excellent heatresistance, release, and chemical resistance. These properties make TPX™ an ideal material for the production of films for packaging of fruits and vegetables. Its low density produces a lighter film which reduces the load for transportation.