A porous fluoropolymer alloy material and method of fabrication is provided. The alloy material is fabricated by forming a compressed extrusion billet from two or more fluoropolymer resins capable of being stretched after extrusion and having different stretch characteristics. The fluoropolymer alloy...http://www.google.es/patents/US4973609?utm_source=gb-gplus-sharePatente US4973609 - Porous fluoropolymer alloy and process of manufacture
Porous fluoropolymer alloy and process of manufacture