High resiliency biodegradable starch-based extruded products and methods of manufacturing those products are provided. In particular, extruded starch products processed by rolling provide excellent resiliency, abrasion resistance and other properties attractive for use as packaging materials....http://www.google.es/patents/US5766529?utm_source=gb-gplus-sharePatente US5766529 - Resilient biodegradable packaging materials
