The present invention relates to new hydrogels with improved mechanical properties and methods of their preparation. The hydrogels are formed from hydrophilic polymers having function hydroxyl groups and have low elasticity modulus typically less than about 10 kPa, a tensile strength above 1 Mpa, an...http://www.google.de/patents/US7297726?utm_source=gb-gplus-sharePatent US7297726 - Hydrogels and methods for their production
