A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer,...http://www.google.es/patents/US7713601?utm_source=gb-gplus-sharePatente US7713601 - Polylactic acid shrink films and methods of casting same
Polylactic acid shrink films and methods of casting same
