PE20080320A1

PE20080320A1 - ELECTROMAGNETICALLY CONDUCTIVE ITEM AND METHOD TO OBTAIN IT

Info

Publication number: PE20080320A1
Application number: PE2007000791A
Authority: PE
Inventors: Rhesa M Browning; Jeffrey A Lim; Charles Mitchell; Sywong Ngin
Original assignee: 3M Innovative Properties Co
Priority date: 2006-09-11
Filing date: 2007-06-20
Publication date: 2008-06-19
Also published as: AR061533A1; CL2007001819A1

Abstract

DONDE EL ARTICULO INCLUYE: a) UN MATERIAL DE NUCLEO DENSIFICADO TAL COMO UNA TELA NO TEJIDA QUE COMPRENDE UN MATERIAL POLIMERICO TERMOPLASTICO (POLIESTERES (TEREFTALANATO DE POLIETILENO), POLIALQUILENOS (POLIETILENO O POLIPROPILENO), POLIAMIDAS (NYLON 6), POLIESTIRENOS Y POLIARISULFONAS) O UNA TELA TEJIDA HECHA DE FIBRA NATURAL, Y DONDE EL MATERIAL DE NUCLEO DENSIFICADO ESTA POSICIONADO A ESTRECHA PROXIMIDAD DE UN DISPOSITIVO RFID; b) AL MENOS UN MATERIAL ELECTROMAGNETICAMENTE CONDUCTOR SELECCIONADO DE METALES NOBLES O NO NOBLES ENCHAPADOS EN METAL NOBLE O NO NOBLE (Au, Ag, Pt, Ni, Cu, Sn, Al, Cu, Ni, Al, Sn u Au ENCHAPADO EN Ag; Cu o Ag EN Ni; GRAFITO EN Ag o Ni; VIDRIO, CERAMICA, PLASTICO, ELASTOMEROS O MICA; NEGRO DE CARBON O FIBRA DE CARBONO, POLIACETILENO; POLIANILINA; POLIPIRROL, POLITIOFENO, POLISULFURNITRILO, POLI (p-FENILENO); POLI (SULFURO FENILENO), O POLI (p-FENILENEVINILENO)), NO METALES CONDUCTORES Y POLIMEROS CONDUCTORES; Y, c) UNA CAPA DE ADHESIVO DISPUESTA EN AL MENOS UNA PARTE DE AL MENOS UNA SUPERFICIE DEL ARTICULO, Y EL ADHESIVO CONTIENE Ni . (a) ESTA CALANDRADO O PLANCHADO. LA PERMEABILIDAD DEL AIRE EN UNA TELA ENCHAPADA CON (b) MEDIDA A LO LARGO DE UN PLANO QUE DISECTA LA TELA A TRAVES DE SU ANCHO MAS PEQUENO NO ES MAYOR A 0,5 m3/min. EL METODO COMPRENDE: i) DENSIFICAR UNA TELA; Y, ii) RECUBRIR LA TELA CON (b) DEBIENDO RECUBRIRSE AL MENOS UNA PARTE DE LA TELA CON UNA CAPA DE Ag ELEMENTAL; Y, iii) ESPARCIR (c) SOBRE AL MENOS UNA SUPERFICIE DE LA TELAWHERE THE ARTICLE INCLUDES: a) A DENSIFIED CORE MATERIAL SUCH AS A NON-WOVEN FABRIC INCLUDING A THERMOPLASTIC POLYMERIC MATERIAL (POLYESTERS (POLYETHYLENE TEREPHTHALANATE), POLYALKYLENES (POLYETHYLENE), POLYPROPYLONYLENES (POLYETHYLENE 6), POLYPROPYLONYLENES (POLYPROPYLENE) 6 A WOVEN FABRIC MADE OF NATURAL FIBER, AND WHERE THE DENSIFIED CORE MATERIAL IS POSITIONED IN CLOSE PROXIMITY TO AN RFID DEVICE; b) AT LEAST ONE SELECTED ELECTROMAGNETICALLY CONDUCTIVE MATERIAL OF NOBLE OR NON-NOBLE METALS PLATED IN NOBLE OR NON-NOBLE METAL (Au, Ag, Pt, Ni, Cu, Sn, Al, Cu, Ni, Al, Sn or Au PLATED IN Ag; Cu or Ag IN Ni; GRAPHITE IN Ag or Ni; GLASS, CERAMICS, PLASTIC, ELASTOMERS OR MICA; CARBON BLACK OR CARBON FIBER, POLYACETYLENE; POLYANILINE; POLYPYRROL, POLYTHIOPHENE, POLYSULFURNITRILE, POLYLENE (p-PHENE); POLYLENE (p-PHENE) PHENYLENE), OR POLY (p-PHENYLENEVINYLENE)), NOT CONDUCTIVE METALS AND CONDUCTIVE POLYMERS; AND, c) A LAYER OF ADHESIVE DISPOSED ON AT LEAST ONE PART OF AT LEAST ONE SURFACE OF THE ARTICLE, AND THE ADHESIVE CONTAINS Ni. (a) IT IS CALENDAR OR IRONED. THE PERMEABILITY OF AIR IN A PLATED FABRIC WITH (b) MEASURED ALONG A PLANE THAT DISSECTS THE FABRIC THROUGH ITS SMALLEST WIDTH IS NOT GREATER THAN 0.5 m3 / min. THE METHOD INCLUDES: i) DENSIFYING A FABRIC; AND, ii) COATING THE FABRIC WITH (b) AT LEAST ONE PART OF THE FABRIC MUST BE COVERED WITH A LAYER OF ELEMENTARY Ag; AND, iii) SPREAD (c) ON AT LEAST ONE SURFACE OF THE FABRIC