The present invention relates to a biodegradable substrate having a durable hydrophilic surface prepared from a biodegradable polymeric substrate having a surface, wherein the biodegradable polymeric substrate has been rendered hydrophilic by subjecting the substrate to a corona glow discharge and/or...http://www.google.fr/patents/US20040127123?utm_source=gb-gplus-shareBrevet US20040127123 - Durable hydrophilic treatment for a biodegradable polymeric substrate
Durable hydrophilic treatment for a biodegradable polymeric substrate
Numéro de demande: 10/734,004 Numéro de publication: US 2004/0127123 A1 Date de dépôt: 10 déc. 2003 Brevet délivré: US7700500 ( Date de délivrance 20 avr. 2010)
