A method of producing laminated inflatable, substantially inextensible expander members having composite properties enhancing their use on intravascular catheters, such as angioplasty catheters is described. Diverse polymeric compounds of differing properties are coextruded to create a multilayer parison....http://www.google.es/patents/US20040191443?utm_source=gb-gplus-sharePatente US20040191443 - Multilayer catheter balloon
