Patent ID: 8460378

Claim:
A biocompatible, biodegradable material in a solid or liquid form comprising segmented linear polyurethanes and/or segmented crosslinked polyurethanes, wherein said segmented linear polyurethanes and/or segmented crosslinked polyurethanes are aliphatic polyurethane-acrylate materials and comprise: A) at least two biocompatible polyols, wherein said polyols are a mixture of hydrophilic and hydrophobic polyols, and having a ratio of hydrophilic polyols to hydrophobic polyols in the range of 2:1 to 2.6:1, wherein said polyols are (i) susceptible to hydrolytic and/or enzymatic degradation and (ii) having a molecular weight of 100 to 20,000 dalton and a number of active hydroxyl groups per molecule of at least two or higher; B) one or more aliphatic diisocyanates and/or aliphatic triisocyanates; C) one or more low molecular weight chain extenders having (i) a molecular weight of 18 to 1,000 dalton and (ii) the functionality of at least two or higher; and D) one or more hydroxyacrylates, wherein the biocompatible, biodegradable material in the solid or liquid form has an interconnected porous structure.