wisconsinbased sheet extruder pacur llc, alongside partners eastman chemical co. and specialty thermoformer tek pak inc., introduced opaque, extruded, multilayer glycolmodified pet foam to the medical packaging. the solution is a coextruded in a threelayer product, with eastman eastar copolyester 6763 on the outside and eastman&rsquos eastalite copolyester as its core &mdash essentially recombining materials the medical industry is already using and already iso certified.