A method for forming a unitary polymeric projection or fastener comprising a thin, strong flexible backing, and a multiplicity of thin spaced hook members projecting from the upper surface of the unitary backing the method generally including extruding a thermoplastic resin through a die plate which...http://www.google.es/patents/US20040068848?utm_source=gb-gplus-sharePatente US20040068848 - Heat treated profile extruded hook
Número de solicitud: 10/619,048 Número de publicación: US 2004/0068848 A1 Fecha de presentación: 14 Jul 2003 Patente emitida: US7052636 ( Fecha de emisión 30 May 2006)
