Polyethylene terephthalatePolyethylene terephthalate
) is a plastic
resin used to make beverage, food and other liquid containers, as well as for some other thermoforming applications.
It exists both in as an amorphous (transparent) and as a semi-crystalline (opaque and white) material.
PET was patented in 1941 by the Calico Printer's Association of Manchester.
The PET bottle was patented in 1973.
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