Darby & Darby
Method for preparing a porous polyurethane vascular graft prosthesis
 A porous polyurethane tube suitable for use as a vascular graft prosthesis is prepared by placing solvent type polyurethane resin coated mandrel in a static coagulant consisting of water, ethanol and optionally aprotic solvent within 30 seconds immediately after the coating step, separating the tube by placing the mandrel in a swelling agent containing at least 90 percent by weight of ethanol and rinsing with a solution containing at least 80 percent by weight ethanol. 
Industrial Technology Research Institute
C C A
C08J C08J A61L
inventional additional inventional
Jui-Hsiang Fan-Yen Andrew T. Jeng Yu-Der Ru-Fong Muh-Lan Shu-Fang Chung-Yi
Chen Lee Hu Wei Lee Laiw Chen Jiang Chang