Oxygen-scavenging PET brings clarity to market

摘要

The development of a clear monolayer polyethylene terephthalate(PET)with an oxygen-scavenging barrier could be the impetus companies need in deciding whether to make the conversion to plastic containers from glass or metal.Philadelphia-based Constar International has developed a material that when blended with monolayer PET,binds oxygen,thus preventing the degradation of products such as juices,tea,and flavoured water.The product,called DiamondClear,is currently being tested before being submitted for regulatory approval.Oxygen 'scavengers' minimise the permeation of oxygen through the container by chemically binding the molecules.