date:Sep 20, 2012
dehydrated to produce butenes, which are the building blocks for packaging materials such as propylene, xylene and polyethylene terephthalate (PET) and offer an alternative to current petroleum-based substances.
Alternatively, according to Butamax isobutanol can be converted into paraxylene (PX), a core component of PET bottles, possibly requiring investment in new process equipment. PX can then be converted to PET using existing equipment.
Butamax and Gevo have filed patents with the US Pate