EP2154950A1 - Matériau de protection électromagnétique - Google Patents

Matériau de protection électromagnétique

Info

Publication number
EP2154950A1
EP2154950A1 EP08755449A EP08755449A EP2154950A1 EP 2154950 A1 EP2154950 A1 EP 2154950A1 EP 08755449 A EP08755449 A EP 08755449A EP 08755449 A EP08755449 A EP 08755449A EP 2154950 A1 EP2154950 A1 EP 2154950A1
Authority
EP
European Patent Office
Prior art keywords
electromagnetic shielding
shielding material
polymeric film
paper web
smart chip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08755449A
Other languages
German (de)
English (en)
Other versions
EP2154950A4 (fr
Inventor
Jonathan Bowden
Bradlee W. Gustavesen
Harold James Klei
James E. Lordi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chase Corp
Original Assignee
Chase Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chase Corp filed Critical Chase Corp
Publication of EP2154950A1 publication Critical patent/EP2154950A1/fr
Publication of EP2154950A4 publication Critical patent/EP2154950A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
    • G06K19/07318—Means for preventing undesired reading or writing from or onto record carriers by hindering electromagnetic reading or writing
    • G06K19/07327—Passive means, e.g. Faraday cages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard

Definitions

  • the present invention is generally directed to materials that are electromagnetic ally opaque and, more particularly, to materials that provide electromagnetic shielding to devices capable of reading electromagnetic frequencies such as radio frequency identification devices (RFID).
  • RFID radio frequency identification devices
  • RFID technology typically include an RFID "tag” that is readable using any suitable reading device.
  • the tag comprises one or more computer chips (“smart chips”) and an associated antenna that allows information encoded onto the smart chip to be transmitted to the reading device.
  • smart chips are becoming smaller and smaller, RFID technology is being incorporated into an increasing number of devices, particularly with regard to consumer industries.
  • RFID technology is becoming more and more cost effective for different types of businesses that need to maintain, distribute, and track inventory, RFID systems are becoming more and more prevalent in everyday life.
  • Radio frequency identification technology is also increasingly being used in the tracking and identification of people. Efforts are being made to incorporate RFID tags into passports, identification cards, banking cards, and transportation passes allegedly in order to more efficiently process people as they travel through ports. In fact, checking in at an airport for an upcoming flight is now done by swiping a credit card at an airline's kiosk, even though the particular bank card was not used to purchase the airline ticket. The "efficiency” that comes with the RFID system is also typically accompanied by mistakes, misuse, or even outright theft of sensitive information.
  • a reading device inconspicuously located on the ATM or above it and remotely operated can allow unshielded encoded information to be directly and easily read when a person thinks that he is safely shielding his belongings from prying eyes.
  • What is needed is a device that allows a user to controllably interrupt or prevent the reading of chip-encoded information using RFID technology.
  • the present invention is directed to an electromagnetic shielding material.
  • This material includes a first paper web and a conductive layer adhered to an adjacently positioned surface of the first paper web.
  • a polymeric film may be adhered to an adjacently positioned surface of the conductive layer.
  • This arrangement defines a laminate structure that, when interposed between a receiving antenna of an RFID smart chip and a transmitting antenna of an RFID signal generator, prevents the reading of the RFID smart chip.
  • the present invention is directed to an electromagnetic shielding material that includes first and second paper webs that sandwich a metalized polymeric film that forms a laminate. Again, when this laminate is interposed between a receiving antenna of an RFID smart chip and a transmitting antenna of an RFID signal generator, the reading of the RFID smart chip is prevented.
  • the present invention is directed to electromagnetic shielding materials in laminate forms.
  • These laminates are combinations of paper, polymeric films, and/or conductive materials that prevent the reading of an RFID smart chip.
  • the paper may be printed on using any suitable means including, but not limited to, laser printing devices, ink jet printers, offset printers, digital printers, flexographic printers, and by hand using handwriting utensils.
  • the present invention is directed to a security device capable of electromagnetically shielding an RFID smart chip.
  • This security device includes an electromagnetic shielding material having at least one conductive layer and at least one adjacently positioned substrate.
  • the device may be an envelope, a holder, a sheath, a sleeve, a piece of paper or cardstock, wallpaper, or the like.
  • the device may also be incorporated into a carrying device such as a wallet, a purse, a handbag, luggage, a computer carrying bag, a pocket protector, or the like.
  • the electromagnetic shielding material is interposed between a receiving antenna of the RFID smart chip and a transmitting antenna of an RFID signal generator, the electromagnetic shielding material is capable of preventing the reading of the RFID smart chip.
  • the present invention is directed to a method of electromagnetically shielding an RFID smart chip.
  • an electromagnetic shielding material comprising at least a conductive material is provided and placed proximate an RFID smart chip and preferably between the RFID smart chip and a transmitting antenna of an RFID signal generator.
  • the electromagnetic shielding material interrupts, impedes, or cancels the RFID signal from the signal generator to a receiving antenna of the RFID smart chip, thereby electromagnetically shielding the RFID smart chip.
  • One advantage of the present invention is that personal information encoded into a device readable via RFID (e.g., an RFID smart chip) cannot be read without the authorization of the owner of the personal information.
  • the proximity of the electromagnetic shielding material to the smart chip causes sufficient interference with the transmission and receiving of a planewave field-propagated signal to negate the ability of a reader to ascertain the information contained in the smart chip.
  • a person carrying the device into which an RFID smart chip is incorporated e.g., a passport, an identification card, a credit card, a transit card or a pre-paid pass, a gift card, or the like
  • a person carrying the device into which an RFID smart chip is incorporated e.g., a passport, an identification card, a credit card, a transit card or a pre-paid pass, a gift card, or the like
  • Codes or information cannot be read without the explicit permission of the user.
  • the electromagnetic shielding material of the present invention may be in the form of an envelope, a folder, a sleeve, or a similar paper product in which the device having the RFID smart chip can be held. Additionally, or in the alternative, the electromagnetic shielding material may be in sheet form and held in proximity to the smart chip.
  • the paper of the envelope, folder, sleeve, or the like can be printed, embossed, colored, cut, perforated and/or folded in any configuration. The paper can also be coated or uncoated. Given the lightweight nature of the paper, most papers are suitable for use in the present invention.
  • a clear or translucent window may be incorporated into the envelope of other document holder to allow documents to be manually read or viewed without being touched.
  • the electromagnetic shielding material of the present invention may be used to shield packaging or even entire rooms.
  • the packaging thereof can be lined with, coated with, or otherwise incorporated with the electromagnetic shielding material.
  • Such packaging includes, but is not limited to, computer cases, disc cases, boxes, and the like.
  • Other packaging may include drums, totes, pallet wrapping devices, cargo containers, and the like.
  • the electromagnetic shielding material may even be in the form of wallpaper or insulation or other paper that can be used to line ceilings and floors.
  • FIG. 1 is an exploded perspective view of an electromagnetic shielding material of the present invention.
  • FIG. 2 is an exploded perspective view of another embodiment of an electromagnetic shielding material of the present invention.
  • FIG. 3 is a side sectional view of another embodiment of an electromagnetic shielding material of FIG. 2.
  • FIG. 4 is a side sectional view of another embodiment of an electromagnetic shielding material of FIG. 2.
  • FIG. 5 is a perspective view of another embodiment of an electromagnetic shielding material of the present invention.
  • FIG. 6 is a side view of a 3 -ply electromagnetic shielding material in which a polymeric film is sandwiched between layers of a conductive material.
  • FIG. 7 is a side view of the electromagnetic shielding material of FIG. 6 in which conductive material is incorporated into opposing surfaces of the polymeric film to form the three plies.
  • FIG. 8 is a schematic representation of an RFID reading of an electromagnetic shielding material of the present invention.
  • FIG. 9 is a schematic representation of a device incorporating the electromagnetic shielding material of the present invention.
  • FIG. 10 is a schematic representation of another embodiment of a device incorporating the electromagnetic shielding material of the present invention. Detailed Description of the Invention
  • the electromagnetic shielding material 10 is a four-ply laminate material comprising a first paper web 12, a polymeric film 14, a conductive layer 16, and a second paper web 18. Adjacently positioned surfaces of each of the first paper web 12, the polymeric film 14, the conductive layer 16, and the second paper web 18 are adhered to each other using an adhesive 20.
  • Both the first paper web 12 and the second paper web 18 comprise fibrous web materials.
  • such web materials are formulated with but are not limited to one or more of natural fiber (such as cotton), synthetic fiber, and/or recycled fiber.
  • such web materials include fillers that are suitable to provide at least some of the desired opacity. Coloring may be added to one or both of the first paper web 12 and the second paper web 18 as desired.
  • the paper may also be synthetic or artificial paper or the like.
  • the paper may be coated or uncoated.
  • the polymeric film 14 comprises any suitable polymeric material.
  • Exemplary materials that may be used for the polymeric film 14 include, but are not limited to, polylactic acid (polylactide) (a polymer made from corn dextrose and known as PLA), polyesters, polypropylenes, combinations of the foregoing, and the like. Some materials of the paper webs and the polymeric film are described in U.S. Patent
  • the conductive layer 16 comprises any suitable conductive material.
  • the conductive layer 16 comprises a metal foil in which the foil sheet is of a thickness suitable to cause the interruption, interference, or impedance of radio signals proximate thereto.
  • the metal foil also imparts some degree of opacity to the electromagnetic shielding material 10.
  • the metal used is aluminum, although other metals (e.g., copper, silver, nickel, and the like in elemental or alloy form) are within the scope of the present invention.
  • the use of metal in foil form allows the electromagnetic shielding material 10 to better accommodate a folded configuration.
  • the conductive layer 16 may comprise metallic particles deposited onto one or more of the polymeric film 14 and the second paper web 18.
  • the metallic particles may be aluminum (e.g., elemental aluminum), aluminum alloys, or aluminum-containing compounds, or they may comprise other metals (e.g., copper, silver, nickel, and the like).
  • the conductive layer 16 may be woven or non- woven strands of metal.
  • the conductive layer 16 may comprise a non-metallic material such as carbon, carbon-loaded matrix material, graphite, combinations of the foregoing, and the like. Carbon nanotubes may also be used either in single- walled form or double-walled form. In embodiments in which carbon nanotubes are used as the conductive layer 16, the carbon nanotubes can be deposited using any suitable technique such as chemical vapor deposition or the like to afford precise control of the thickness of the conductive layer.
  • the adhesive 20 may be conductive in itself. In such an embodiment, the adhesive includes a suitable conductive material mixed therein.
  • Such elements include, but are not limited to, metals in the forms of particles, powders, granules, beads, combinations of the foregoing, and the like.
  • the metals may be aluminum (e.g., elemental aluminum), aluminum alloys, or aluminum-containing compounds, or they may be other metals (e.g., copper, silver, nickel, and the like).
  • the adhesive 20 used to adhere the first paper web 12, the polymeric film 14, the conductive layer 16, and the second paper web 18 into a laminated form may be a 100% solids adhesive.
  • the present invention is not limited in this regard as other adhesives are within the scope of the present invention.
  • the adhesive 20 may be solvent- based, water-based, a hot melt, ultraviolet radiation curable, electron beam curable, combinations of the foregoing, and the like.
  • a destructive bond is one in which the paper web(s) and the polymeric film, after curing under a T Peel Adhesion Test, will not allow the paper web(s) to be separated from the polymeric film with the paper remaining intact.
  • a 100% solids adhesive such an adhesive is a low temperature (flowable at room temperature at about 100 degrees F), two-component adhesive.
  • the adhesive may be a warm (gel at room temperature that is heated to permit flow) one-component adhesive.
  • Either adhesive is selected based on the adhesive penetration and holdout (ability to retain the adhesive) of the paper web used. Generally, the warm temperature adhesive is used where the penetration and holdout of the paper is of concern, the low temperature adhesive is used when penetration and holdout are less of an issue.
  • lamination is generally accomplished using standard lamination techniques.
  • the electromagnetic shielding material 110 is a laminate material comprising a first paper web 112, a polymeric film 114, a conductive material 116, and a second paper web 118.
  • the first paper web 112 and the polymeric film 114 are adjacently positioned and adhered to each other using an adhesive 120.
  • the conductive material 116 is impregnated into or otherwise incorporated into the polymeric film 114 to define a metalized polymeric film, which thereby obviates the need to adhere the conductive material to the polymeric film.
  • the second paper web 118 is adhered to the polymeric film 114 (incorporating the conductive material 116) using the adhesive 120.
  • both the first paper web 112 and the second paper web 118 comprise fibrous web materials (similar to the previous embodiment), and the polymeric film 114 is a polyester, polypropylene, or the like having sufficient dimensional stability, shrinkage characteristics, balance, ability to adhere to the paper web material, and heat resistance.
  • the conductive material 116 in the electromagnetic shielding material 110 comprises particles of suitable conductive material such as aluminum, copper, silver, nickel, alloys thereof, or the like in powder form.
  • suitable conductive material such as aluminum, copper, silver, nickel, alloys thereof, or the like in powder form.
  • Non-metallic materials such as carbon, carbon- loaded matrix material, graphite, carbon nanotubes, combinations of the foregoing, combinations of the foregoing with metal, and the like may also be used.
  • the conductive material 116 may be dispersed uniformly throughout the polymeric film 114 as shown in FIG. 3, or it may be concentrated along one surface of the polymeric film as shown in FIG. 4. Referring now to FIG. 5, another embodiment of an electromagnetic shielding material is shown generally at 210.
  • the electromagnetic shielding material 210 is a three-ply laminate material comprising a paper web 212, a polymeric film 214, and a conductive material 216.
  • the conductive material 216 is sandwiched between the paper web 212 and the polymeric film 214.
  • the present invention is not limited in this regard, however, as either the paper web 212 or the conductive material 216 may be sandwiched between the other two layers.
  • An adhesive is used to adhere the three plies of the electromagnetic shielding material 210 together.
  • the conductive material 216 may be aluminum, copper, silver, nickel, alloys of the foregoing, combinations of the foregoing, or the like.
  • the conductive material 216 may also be carbon, carbon nanotubes, carbon-loaded matrix material, graphite, combinations thereof, combinations thereof with metal, or the like.
  • This electromagnetic shielding material 310 is a three-ply laminate material comprising a polymeric film 314 sandwiched between a first conductive material 316 and a second conductive material 317.
  • both the first conductive material 316 and the second conductive material 317 are aluminum foils.
  • the present invention is not limited in this regard, however, as the materials from which both the first conductive material 316 and the second conductive material 317 are fabricated may be any conductive material such as aluminum, copper, silver, nickel, alloys thereof, or the like in powder form.
  • Non-metallic materials such as carbon, carbon- loaded matrix material, graphite, carbon nanotubes, combinations of the foregoing, and the like may also be used.
  • the first conductive material 316 and the second conductive material 317 may both be adhered to opposing surfaces of the polymeric film 314 as shown in FIG. 6, or they may be incorporated directly into the polymeric film and concentrated substantially along the facing surfaces thereof as shown in FIG. 7.
  • the shielding effectiveness of the electromagnetic shielding material 10 of RFID radiation is shown generally at 40.
  • the electromagnetic shielding material is shown as being the four-ply laminate material comprising the polymeric film and the conductive layer clad in paper webs, the present invention is not limited in this regard as any of the other electromagnetic shielding materials disclosed herein can be used with the apparatus depicted.
  • the electromagnetic shielding material 10 is interposed between a transmitting antenna 42 and a receiving antenna 44.
  • a signal generator 46 outputs an unmodulated sinusoidal RF signal at discrete frequencies into a power amplifier 48.
  • the signal generator 46 is incremented at the discrete frequencies (13.56 MHz) with pre-determined amplitudes fed into the power amplifier 48 and through the transmitting antenna 42.
  • the resulting planewave signal is field-propagated into the electromagnetic shielding material 10.
  • the propagated signal is preferably not received by the receiving antenna 44 attached to an RFID receiving portion 50, which comprises a preamplifier 52 and an analyzer 54 located in a chip. Referring now to FIGS.
  • the security device 60 may be an envelope (e.g., a secure mailing envelope, a fulfillment mailer, or the like), a protective sleeve, sheath, holder, wallpaper, RFID machine scannable cards (e.g., bank cards, transit cards, telephone cards, or the like), medical packaging, or the like.
  • the security device 60 When the security device 60 is an envelope, protective sleeve, holder, etc., it may be fabricated from a piece of electromagnetic shielding material 10 that is cut, folded, and suitably glued.
  • the security device includes an adjacently-positioned substrate 62.
  • the substrate 62 may be the paper, cardboard, polymer, or other material of the envelope, sleeve, sheath, holder, wallpaper, or the like that contains or shields a smart chip 66 of an RFID system.
  • the security device 60 is wallpaper, the wallpaper may be backed with vinyl or the like.
  • the substrate 62 may be an RFID machine scannable card or the like that directly incorporates the smart chip 66 of the RFID system.
  • the substrate 62 may be incorporated into the structure of another article 70.
  • the article 70 may be a wallet, purse, handbag, pocket protector, article of clothing, suitcase, or computer bag.
  • the article 70 may also be a room or an entire building. Also in any embodiment, the proximity of the electromagnetic shielding material 10 to the smart chip 66 provides effective shielding of the smart chip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Security & Cryptography (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Laminated Bodies (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L'invention concerne un matériau de protection électromagnétique, comprenant une bande de papier et une couche conductrice mise en adhérence sur une surface positionnée de manière adjacente à la bande de papier. Cet agencement définit une structure en stratifié qui, lorsque intercalée entre une antenne de réception d'une puce intelligente RFID et une antenne de transmission d'un générateur de signal, empêche la lecture de la puce. Un dispositif de sécurité capable de protéger électromagnétiquement une puce intelligente RFID comprend un matériau de protection électromagnétique ayant au moins une couche conductrice et au moins un substrat positionné de manière adjacente. Un procédé de protection électromagnétique d'une puce intelligente RFID comprend la fourniture et le placement d'un matériau de protection électromagnétique à proximité d'une puce intelligente RFID, et de préférence entre la puce intelligente RFID et une antenne de transmission d'un générateur de signal RFID.
EP08755449A 2007-05-16 2008-05-14 Matériau de protection électromagnétique Withdrawn EP2154950A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80377307A 2007-05-16 2007-05-16
PCT/US2008/063595 WO2008144336A1 (fr) 2007-05-16 2008-05-14 Matériau de protection électromagnétique

Publications (2)

Publication Number Publication Date
EP2154950A1 true EP2154950A1 (fr) 2010-02-24
EP2154950A4 EP2154950A4 (fr) 2010-06-23

Family

ID=40122125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08755449A Withdrawn EP2154950A4 (fr) 2007-05-16 2008-05-14 Matériau de protection électromagnétique

Country Status (6)

Country Link
EP (1) EP2154950A4 (fr)
JP (1) JP2011508408A (fr)
CN (1) CN101730464A (fr)
AU (1) AU2008255083A1 (fr)
TW (1) TW200906609A (fr)
WO (1) WO2008144336A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090096703A1 (en) * 2007-05-16 2009-04-16 Chase Corporation Paper/biodegradable plastic laminate and electromagnetic shielding material
DE102009016526A1 (de) * 2009-04-06 2010-10-07 Giesecke & Devrient Gmbh Mehrschichtiger kartenförmiger Datenträger
DE102009021694A1 (de) 2009-05-18 2010-11-25 Winter Ag Schutzhülle für einen Datenträger mit Transpondereinheit und Verfahren zu deren Herstellung
DE202009012720U1 (de) * 2009-08-11 2010-01-14 Göcke, Ludwig, Dipl.-Ökonom Material zur Abschirmung gegenüber elektromagnetischen Wellen
CN101833680A (zh) * 2010-03-26 2010-09-15 成都兴同达微电子科技有限公司 Rfid电子标签的防干扰方法
KR101275983B1 (ko) * 2010-09-01 2013-06-14 현대카드 주식회사 메탈 결제카드 및 그 제작 방법
US8578982B2 (en) * 2011-06-28 2013-11-12 Victor Lee Scanner resistant device for RFID cards
CA2879386A1 (fr) 2012-07-19 2014-01-23 3M Innovative Properties Company Etiquette de blindage electromagnetique
CN103331981A (zh) * 2013-06-25 2013-10-02 苏州市星辰材料有限公司 一种屏蔽材料
SG11201601418YA (en) * 2013-10-17 2016-03-30 Univ Nanyang Tech Conductive paper and method of forming the same
US20160052240A1 (en) 2014-08-25 2016-02-25 Chase Corporation Paper/ plastic laminate and electromagnetic shielding material
JP6200442B2 (ja) * 2015-03-02 2017-09-20 東芝テック株式会社 読取装置及びｐｏｓ装置
JP2017157697A (ja) * 2016-03-02 2017-09-07 株式会社巴川製紙所 断熱および電磁波遮蔽用複合シート、並びにその利用
US10506746B1 (en) * 2016-07-01 2019-12-10 Conductive Composites Company Ip, Llc Methods and systems for constructing or retrofitting electromagnetically shielded facilities
CN107964830A (zh) * 2017-11-17 2018-04-27 苏州甫众塑胶有限公司 一种复合导电纸的制备方法
CN110816431B (zh) * 2019-11-22 2023-02-03 中国兵器工业第五九研究所 一种隔热降噪中子屏蔽功能材料及结构
CN111386023A (zh) * 2020-03-19 2020-07-07 江苏万华拓谷新材料科技有限公司 一种蜂窝状复合吸波电磁屏蔽材料及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398672A1 (fr) * 1989-05-17 1990-11-22 Minnesota Mining And Manufacturing Company Absorbant microonde pour application directe en surface
WO1993008674A1 (fr) * 1991-10-23 1993-04-29 W.L. Gore & Associates, Inc. Filtre de protection contre les interferences electromagnetiques
WO2006005984A1 (fr) * 2004-06-16 2006-01-19 Axalto Sa Document electronique blinde sans contact
WO2006107778A2 (fr) * 2005-04-01 2006-10-12 Mastercard International Incorporated Systeme et procede de protection contre la cueillette d'information sur des cartes sans contact

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647714A (en) * 1984-12-28 1987-03-03 Sohwa Laminate Printing Co., Ltd. Composite sheet material for magnetic and electronic shielding and product obtained therefrom
US7501984B2 (en) * 2003-11-04 2009-03-10 Avery Dennison Corporation RFID tag using a surface insensitive antenna structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398672A1 (fr) * 1989-05-17 1990-11-22 Minnesota Mining And Manufacturing Company Absorbant microonde pour application directe en surface
WO1993008674A1 (fr) * 1991-10-23 1993-04-29 W.L. Gore & Associates, Inc. Filtre de protection contre les interferences electromagnetiques
WO2006005984A1 (fr) * 2004-06-16 2006-01-19 Axalto Sa Document electronique blinde sans contact
WO2006107778A2 (fr) * 2005-04-01 2006-10-12 Mastercard International Incorporated Systeme et procede de protection contre la cueillette d'information sur des cartes sans contact

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008144336A1 *

Also Published As

Publication number Publication date
EP2154950A4 (fr) 2010-06-23
TW200906609A (en) 2009-02-16
WO2008144336A1 (fr) 2008-11-27
CN101730464A (zh) 2010-06-09
AU2008255083A1 (en) 2008-11-27
JP2011508408A (ja) 2011-03-10

Similar Documents

Publication Publication Date Title
WO2008144336A1 (fr) Matériau de protection électromagnétique
US20090096703A1 (en) Paper/biodegradable plastic laminate and electromagnetic shielding material
US20060254815A1 (en) Radiofrequency identification shielding
MX2011002639A (es) Estructra que comprende al menos dos dispositivos de microcircuito integrado con comunicacion sin contacto.
US11123958B2 (en) Paper/plastic laminate and electromagnetic shielding material
RU2596477C1 (ru) Электромагнитная защитная бирка
EP1693786B1 (fr) Documents intelligents
EA012731B1 (ru) Интеллектуальный документ, удостоверяющий личность
WO2007034129A1 (fr) Document et son procede de fabrication
AU2002339221A1 (en) Smart documents
US20100263179A1 (en) LINING FOR BLOCKING WI-FI, ULTRA-SOUND, LASER, VHF, UHF, BLUE TOOTH, AND RFlD TAG SIGNAL
US20170196129A1 (en) Device for preventing data theft, use of false identity, and fraud during contactless data transmission via electromagnetic radio waves
TW201023052A (en) E-document comprising an electromagnetic interference element
CA2655853A1 (fr) Manchon protecteur
DE202005005909U1 (de) Abschirmvorrichtung für dünne RFID-Systeme
JP2000030014A (ja) Ｉｃカード用ケース
JP2006256683A (ja) カードないし冊子の収納ケース
WO2016032428A1 (fr) Stratifié de plastique/papier et matériau de blindage électromagnétique
JP4871789B2 (ja) 磁性シート
AU2011211382A1 (en) Radio frequency identification shielding
CN106575371A (zh) 一种通过无线电磁波在非接触式数据传输过程中避免数据盗窃、虚假身份利用及欺诈的设备
JP3141164U (ja) カードないし冊子の収納ケース
JP2009032161A (ja) 磁性シートおよびこれを備えた非接触型データ受送信体ホルダー

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20091216

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

A4 Supplementary search report drawn up and despatched

Effective date: 20100527

RIC1 Information provided on ipc code assigned before grant

Ipc: H05K 9/00 20060101ALI20100520BHEP

Ipc: G06K 19/073 20060101ALI20100520BHEP

Ipc: A01K 1/015 20060101AFI20090113BHEP

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20110325

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20120821