The invention relates to porous fiber comprising a polymeric material, said fiber having a diameter of 20 to 4 000 nm and pores in the form of channels extending at least to the core of said fiber and/or through said fiber. ...http://www.google.es/patents/US20040013873?utm_source=gb-gplus-sharePatente US20040013873 - Production of polymer fibres having nanoscale morphologies
Production of polymer fibres having nanoscale morphologies
Número de solicitud: 10/344,419 Número de publicación: US 2004/0013873 A1 Fecha de presentación: 3 Jul 2003 Patente emitida: US6790528 ( Fecha de emisión 14 Sep 2004)