BASF has cooperated with ALPLA, one of the world's largest manufacturer of plastic beverage bottles, to introduce a bottle for milk and yoghurt beverages using impact resistant Polystyrene (PS-I). BASF's Polystyrene type BX 3580, specially optimized for this application, can be processed by injection blow molding and injection stretch blow molding on the same machines used for PET. The advantage for packaging manufacturers is that the lower density of Polystyrene in comparison to PET can slash material costs by up to 25%. Even more energy and money are saved because injection stretch blow molding uses less compressed air and, unlike PET, the Polystyrene does not have to be pre-dried. This demonstrates that Polystyrene is an inexpensive alternative when it comes to packaging for this sector
25-Feb-08 
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