AdvanSource Biomaterials ChronoFlex® AR Biodurable Medical Grade Polyurethane

AdvanSource Biomaterials Corporation manufactures and markets this solution-grade, segmented, aromatic, polycarbonate-based polyurethane designed for use in solvent casting and dipping applications. This elastomer may be evaluated for use in the fabrication of blood contact surfaces, pump diaphragms, and other medical devices. Exceptional flexure endurance leads to uses such as artificial heart diaphragms or vascular grafts.Synthesis of ChronoFlex® AR is carried out by the addition of MDI (diphenylmethane 4,4'-diisocyanate) to polycarbonate diol, followed by addition of a mixture of chain extenders and a molecular weight regulator, with the reaction carried out in DMAC solvent. ChronoFlex® AR is thus supplied as a 22% solids solution, ready for solution casting.Information provided by AdvanSource Biomaterials Corporation.