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DE20307223U1 - Frequency absorbing, reflecting and permeable sheet structure, useful in production of composites, comprising textile carrier coated with mixture of thermoplastic powder and conductive short fibers or powder - Google Patents

Frequency absorbing, reflecting and permeable sheet structure, useful in production of composites, comprising textile carrier coated with mixture of thermoplastic powder and conductive short fibers or powder Download PDF

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Publication number
DE20307223U1
DE20307223U1 DE20307223U DE20307223U DE20307223U1 DE 20307223 U1 DE20307223 U1 DE 20307223U1 DE 20307223 U DE20307223 U DE 20307223U DE 20307223 U DE20307223 U DE 20307223U DE 20307223 U1 DE20307223 U1 DE 20307223U1
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Prior art keywords
frequency
reflecting
powder
absorbing
textile fabric
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Expired - Lifetime
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DE20307223U
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German (de)
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C Cramer Weberei Heek-Nienborg & Co KG GmbH
CRAMER WEBEREI C
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C Cramer Weberei Heek-Nienborg & Co KG GmbH
CRAMER WEBEREI C
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Priority to DE20307223U priority Critical patent/DE20307223U1/en
Publication of DE20307223U1 publication Critical patent/DE20307223U1/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073Shielding materials
    • H05K9/0081Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0083Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • D06N3/0093Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by applying resin powders; by sintering
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073Shielding materials
    • H05K9/0081Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/009Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00Industrial
    • D10B2505/02Reinforcing materials; Prepregs

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Laminated Bodies (AREA)

Abstract

A frequency absorbing, frequency reflecting and frequency permeable textile sheet structure comprises a textile carrier having an adherent surface coating of a conductive mixture of thermoplastic, matrix-forming binder powder (I) and conductive short chopped fibers or particles (II), the mixture having an area weight at least 50 g/m 2>and a surface resistance of at most 10 9>Ohms.

Description

Die vorliegende Erfindung betrifft ein frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde, aufgebaut aus einem textilen Träger mit einer auf der Oberfläche haftenden . leitfähigen Mischung. Dieses textile Flächengebilde kann in vorteilhafterweise zu einem Verbundstoff verarbeitet werden.The The present invention relates to a frequency-absorbing, frequency-reflecting and frequency-transmissive textile fabric, constructed from a textile carrier with one on the surface sticking. conductive Mixture. This textile fabric can advantageously be processed into a composite.

Seit vielen Jahren sind faserverstärkte Kunstharzprodukte bekannt, die in den verschiedensten Industriebereichen verwendet werden. Üblicherweise wird ein solcher Faserverbundwerkstoff gebildet, indem ein Fasergewebe mit einer Harzzusammensetzung imprägniert wird, die ein Gemisch aus beispielsweise einem Epoxidharz, einem Reaktanten und einem Beschleuniger umfasst. Diese Harzmatrix wird in flüssiger Form entweder in einem Handlaminierungsverfahren bzw. kontinuierlichem Laminierungsverfahren zum Herstellen von Prepregs oder in einem Harzinjektionsverfahren (RTM-Resin-Transfer-Molding) aufgetragen. Die endgültige Form des Faserverbundwerkstoffes wird durch Aufeinanderlegen mehrerer Lagen dieser imprägnierten Fasergebilde durch Pressen und Aushärten erhalten.since Many years have been fiber-reinforced synthetic resin products known, used in a wide variety of industries become. Usually such a fiber composite material is formed by a fiber fabric is impregnated with a resin composition which is a mixture of for example an epoxy resin, a reactant and an accelerator includes. This resin matrix is in liquid form either in a hand lay-up process or continuous lamination process for the production of prepregs or applied in a resin injection process (RTM resin transfer molding). The final form of the fiber composite material is made by stacking several Layers of these impregnated fiber structures by pressing and curing receive.

Aus dem deutschen Gebrauchsmuster DE 201 20 447 ist bekannt, eine haftende Binderbeschichtung auf der Oberfläche des textilen Flächengebildes durch Aufschmelzen von aufgestreuten Binderpulver, durch Aufsprühen einer Binderlösung von in einem Lösungsmittel gleichmäßig dispergierten Binderpulverpartikeln oder auf trockenem Wege durch Aufstreuen des Binderpulvers und anschließendem Ansintern dieser Binderpulverpartikel zu bewirken. Diese bekannten vorverfestigten textilen Flächengebilde oder daraus hergestellten Faserverbundwerkstoffe können durch die Auswahl der Harzzusammensetzung und des Fasergewebes modifiziert werden. Es ist jedoch bisher kein textiles Flächengebilde bekannt, welches Wellen unterschiedlicher Wellenlänge und Frequenz sowohl absorbiert, reflektiert als auch für diese Wellen durchlässig ist.From the German utility model DE 201 20 447 is known to cause an adhesive binder coating on the surface of the textile fabric by melting scattered binder powder, by spraying on a binder solution of binder powder particles uniformly dispersed in a solvent or in a dry way by sprinkling the binder powder and then sintering on these binder powder particles. These known pre-consolidated textile fabrics or fiber composites made from them can be modified by the selection of the resin composition and the fiber fabric. However, no textile fabric has hitherto been known which both absorbs, reflects and also transmits waves of different wavelengths and frequencies.

Aufgabe der Erfindung ist es daher, ein frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde zur Verfügung zu stellen.task The invention is therefore a frequency-absorbing, frequency-reflecting and frequency-transmissive textile fabric to disposal to deliver.

Diese Aufgabe wird mit einem textilen Flächengebilde mit den Merkmalen des Anspruches 1 gelöst. Grundlage des sowohl frequenzabsorbierenden als auch frequenzreflektierenden und frequenzdurchlässigen textilen Flächengebildes ist ein textiler Träger, beispielsweise ein Glasfasergewebe, welches mit einer auf der Oberfläche haftenden leitfähigen Mischung ausgestattet ist. Diese Mischung besteht zum einen aus einem thermoplastischen matrixfähigen Binderpulver und zum anderen aus leitfähigen Kurzschnittfasern oder Partikeln. Bei dem thermoplastischem matrixfähigem Binderpulver kann es sich um ein Epoxidharzpulver, ein Polyesterpulver, ein Phenolharzpulver, ein Polyurethanpulver oder eine Mischung aus diesen handeln. Einsetzbar sind sowohl unvernetzte Harzpulver als auch mit Reaktanten oder Beschleunigern versetzte Harzkomponenten, wobei die Binderpulver eine Korngröße besitzen, die im Korngrößenspektrum von 0 bis 500 μm, vorzugsweise von 0 bis 200 μm liegt. Bei den leitfähigen Fasern oder Partikeln kann es sich sowohl um Metallfasern oder Metallpartikeln, wie beispielsweise Aluminium, Kupfer, Titan, Nickel oder Stahl handeln. Einsetzbar sind auch leitfähige Kohlenstofffasern oder metallhaltige Keramikpartikel sowie Partikel von leitfähigen Polymeren. Die leitfähigen Partikel oder Fasern sollten in einem Faserlängenspektrum oder Korngrößenspektrum von 0 bis 500 μm liegen.This Task is with a textile fabric with the characteristics of claim 1 solved. Basis of both frequency-absorbing and frequency-reflecting and frequency-transmissive textile fabric is a textile carrier, for example a glass fiber fabric, which with an adhering to the surface conductive Mix is equipped. On the one hand, this mixture consists of a thermoplastic matrix capable Binder powder and the other from conductive short cut fibers or Particles. It can be the case with the thermoplastic matrix powder an epoxy resin powder, a polyester powder, a phenolic resin powder, act a polyurethane powder or a mixture of these. usable are both uncrosslinked resin powder and with reactants or Accelerate offset resin components, taking the binder powder have a grain size, those in the grain size spectrum from 0 to 500 μm, preferably from 0 to 200 μm lies. With the conductive Fibers or particles can be both metal fibers or metal particles, such as aluminum, copper, titanium, nickel or steel. usable are also conductive Carbon fibers or metal-containing ceramic particles as well as particles of conductive Polymers. The conductive Particles or fibers should be in a fiber length spectrum or grain size spectrum from 0 to 500 μm lie.

Der Mischung aus Binderpulver und leitfähigem Kurzschnittfasern bzw. Partikeln können des Weiteren Keramikpigmente oder Partikel zugesetzt werden, so dass auf diesem Wege gleichzeitig die Verschleißfestigkeit des textilen Trägers erhöht werden kann.The Mixture of binder powder and conductive short cut fibers or Particles can furthermore ceramic pigments or particles are added, so that the wear resistance of the textile backing is simultaneously increased in this way can.

Zur Herstellung des frequenzabsorbierenden, frequenzreflektierenden und frequenzdurchlässigen textilen Flächengebildes wird eine Mischung aus 50 Gew.-% bis 70 Gew.-% Binderpulver, z.B. 50 Gew.-% unvernetztes Epoxidharzpulver und 50 Gew.-% bis 70 Gew.-% an leitfähigen Kurzschnittfasern oder Partikeln, beispielsweise 70 Gew.-% Nirosta-Kurzschnittfasern hergestellt. Diese Mischung wird auf den textilen Träger aufgestreut und durch Wärmeeinwirkung an der Oberfläche des textilen Trägers angesintert. Beim Aufstreuen der gut durchgeschüttelten Mischung aus dem Binderpulver und den Metallfasern sollte auf dem textilen Träger mindestens 50 g leitfähige Mischung je m² des textilen Trägers aufgetragen werden. Die gewünschten Eigenschaften lassen sich nur erzielen, wenn die leitfähige Mischung eine Mindestleitfähigkeit besitzt, d.h. höchstens einen Oberflächenwiderstand von 109 Ω.A mixture of 50% by weight to 70% by weight of binder powder, for example 50% by weight of uncrosslinked epoxy resin powder and 50% by weight to 70% by weight of conductive short cut fibers is used to produce the frequency-absorbing, frequency-reflecting and frequency-permeable textile fabric or particles, for example 70% by weight of stainless steel short-cut fibers. This mixture is sprinkled onto the textile backing and sintered onto the surface of the textile backing by the action of heat. When sprinkling the well-shaken mixture of the binder powder and the metal fibers onto the textile carrier, at least 50 g of conductive mixture per m² of the textile carrier should be applied. The desired properties can only be achieved if the conductive mixture has a minimum conductivity, ie at most a surface resistance of 10 9 Ω.

Claims (10)

Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde aufgebaut aus einem textilen Träger mit einer auf der Oberfläche haftenden leitfähigen Mischung aus einem thermoplastischen, matrixfähigen Binderpulver und leitfähigen Kurzschnittfasern oder Partikeln, wobei die Mischung ein Flächengewicht von mindestens 50 g/m² und höchstens einen Oberflächenwiderstand von 109 Ω besitzt.Frequency-absorbing, frequency-reflecting and frequency-permeable textile fabric constructed from a textile carrier with a conductive mixture of a thermoplastic, matrix-compatible binder powder and conductive short-cut fibers or particles adhering to the surface, the mixture having a basis weight of at least 50 g / m² and at most a surface resistance of 10 9 Has Ω. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 1, dadurch gekennzeichnet, dass die Mischung mindestens 50 Gew.-% bis 70 Gew.-% Binderpulver und 50 Gew.% bis 70 Gew.-% an leitfähigen Kurzschnittfasern oder Partikeln enthält.Frequency-absorbing, frequency-reflecting and frequency-permeable textile fabric according to claim 1, characterized in that that the mixture contains at least 50% by weight to 70% by weight of binder powder and 50% by weight to 70% by weight of conductive short cut fibers or particles. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 1, dadurch gekennzeichnet, dass der textile Träger ein Glasfasergewebe ist.Frequency absorbing, frequency reflecting and frequency-permeable textile fabric according to claim 1, characterized in that the textile carrier Fiberglass fabric is. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 1, dadurch gekennzeichnet, dass das thermoplastische, matrixfähige Binderpulver ein Epoxidharzpulver, ein Polyesterpulver, ein Phenolharzpulver, ein Polyurethanpulver oder eine Mischung aus diesen ist.Frequency absorbing, frequency reflecting and frequency-permeable textile fabric according to claim 1, characterized in that the thermoplastic, matrix capable Binder powder an epoxy resin powder, a polyester powder, a phenolic resin powder, is a polyurethane powder or a mixture of these. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 4, dadurch gekennzeichnet, dass das thermoplastische, matrixfähige Binderpulver ein unvernetztes Epoxidharzpulver ist.Frequency absorbing, frequency reflecting and frequency-permeable textile fabric according to claim 4, characterized in that the thermoplastic, matrix capable Binder powder is an uncrosslinked epoxy resin powder. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass das thermoplastische, matrixfähige Binderpulver ein Korngrößenspektrum von 0 bis 500 μm besitzt, vorzugsweise 0 bis 200 μm.Frequency absorbing, frequency reflecting and frequency-permeable textile fabric according to claim 4 or 5, characterized in that the thermoplastic, Matrix-compatible binder powder a grain size spectrum from 0 to 500 μm has, preferably 0 to 200 microns. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 1, dadurch gekennzeichnet, dass Kohlenstoff-, Aluminium-, Kupfer-, Titan-, Nickel- oder Stahlkurzschnittfasern als leitfähige Kurzschnittfasern eingesetzt werden, vorzugsweise NIROSTA-Kurzschnittfasern.Frequency absorbing, frequency reflecting and frequency-permeable textile fabric according to claim 1, characterized in that carbon, aluminum, Copper, titanium, nickel or steel short cut fibers as conductive short cut fibers are used, preferably NIROSTA short cut fibers. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 7, dadurch gekennzeichnet, dass metallhaltige Keramikpartikel oder leitfähige Polymere als leitfähige Partikel eingesetzt werden.Frequency absorbing, frequency reflecting and frequency-permeable textile fabric according to claim 7, characterized in that metal-containing ceramic particles or conductive Polymers as conductive Particles are used. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die leitfähigen Kurzschnittfasern oder leitfähigen Partikel ein Faserlängenspektrum oder Korngrößenspektrum von 0 bis 500 μm besitzen.Frequency absorbing, frequency reflecting and frequency-permeable textile fabric according to claim 7 or 8, characterized in that the conductive short cut fibers or conductive Particles a fiber length spectrum or grain size spectrum from 0 to 500 μm have. Frequenzabsorbierendes, frequenzreflektierendes und frequenzdurchlässiges textiles Flächengebilde nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Mischung zur Erhöhung der Verschleißfestigkeit zusätzlich Keramikpartikel enthält.Frequency absorbing, frequency reflecting and frequency-transmissive textile fabric according to one of the claims 1 to 9, characterized in that the mixture to increase the wear resistance additionally Contains ceramic particles.
DE20307223U 2003-05-08 2003-05-08 Frequency absorbing, reflecting and permeable sheet structure, useful in production of composites, comprising textile carrier coated with mixture of thermoplastic powder and conductive short fibers or powder Expired - Lifetime DE20307223U1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007093331A1 (en) * 2006-02-16 2007-08-23 Haver & Boecker Ohg Screening fabric
EP2230561A1 (en) * 2009-03-20 2010-09-22 Wazana Brothers International, Inc., d/b/a Micro Solutions Enterprises Method and composition for recoating toner cartridge developing member
US8926869B2 (en) 2007-10-28 2015-01-06 Clover Technologies Group, Llc Method and composition for recoating toner cartridge developing member

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024888A1 (en) * 1980-07-01 1982-02-04 Bayer Ag, 5090 Leverkusen COMPOSITE MATERIAL FOR SHIELDING ELECTROMAGNETIC RADIATION
DE3744486A1 (en) * 1987-12-30 1989-07-13 Heinrich Kehlbeck Sheet-like structures for shielding the human body or parts of the human body from earth's radiation
DE3824292A1 (en) * 1988-07-16 1990-01-18 Battelle Institut E V Method for fabricating thin-film absorbers for electromagnetic waves
DE3935409A1 (en) * 1989-10-24 1991-04-25 Kunz Alfred & Co SHIELDING AGAINST ELECTROMAGNETIC SHAFTS, ELECTRIC PULSES AND / OR ELECTRICAL RADIATION FOR OPENINGS, PREFERRED FOR WINDOW OPENINGS, FROM SHIELDED ROOMS
DE19726976A1 (en) * 1997-06-26 1999-01-07 Ver Schmirgel & Maschf Flexible composite is used as e.g. antistatic conveyor, high voltage conductor or thermal protection
DE20120447U1 (en) * 2001-12-18 2002-04-11 C. Cramer, Weberei, Heek-Nienborg, GmbH & Co. KG, 48619 Heek Pre-consolidated textile fabrics

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024888A1 (en) * 1980-07-01 1982-02-04 Bayer Ag, 5090 Leverkusen COMPOSITE MATERIAL FOR SHIELDING ELECTROMAGNETIC RADIATION
DE3744486A1 (en) * 1987-12-30 1989-07-13 Heinrich Kehlbeck Sheet-like structures for shielding the human body or parts of the human body from earth's radiation
DE3824292A1 (en) * 1988-07-16 1990-01-18 Battelle Institut E V Method for fabricating thin-film absorbers for electromagnetic waves
DE3935409A1 (en) * 1989-10-24 1991-04-25 Kunz Alfred & Co SHIELDING AGAINST ELECTROMAGNETIC SHAFTS, ELECTRIC PULSES AND / OR ELECTRICAL RADIATION FOR OPENINGS, PREFERRED FOR WINDOW OPENINGS, FROM SHIELDED ROOMS
DE19726976A1 (en) * 1997-06-26 1999-01-07 Ver Schmirgel & Maschf Flexible composite is used as e.g. antistatic conveyor, high voltage conductor or thermal protection
DE20120447U1 (en) * 2001-12-18 2002-04-11 C. Cramer, Weberei, Heek-Nienborg, GmbH & Co. KG, 48619 Heek Pre-consolidated textile fabrics

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007093331A1 (en) * 2006-02-16 2007-08-23 Haver & Boecker Ohg Screening fabric
US8926869B2 (en) 2007-10-28 2015-01-06 Clover Technologies Group, Llc Method and composition for recoating toner cartridge developing member
US20150104224A1 (en) * 2007-10-28 2015-04-16 Clover Technologies Group, Llc Method and composition for recoating toner cartridge developing member
EP2230561A1 (en) * 2009-03-20 2010-09-22 Wazana Brothers International, Inc., d/b/a Micro Solutions Enterprises Method and composition for recoating toner cartridge developing member

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Effective date: 20060505

R157 Lapse of ip right after 6 years

Effective date: 20091201