EP1086470B1 - Verfahren zum herstellen eines glimmerproduktes, das vorzugsweise in der form eines glimmerbandes erscheint, und erhaltenes produkt - Google Patents

Verfahren zum herstellen eines glimmerproduktes, das vorzugsweise in der form eines glimmerbandes erscheint, und erhaltenes produkt Download PDF

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Publication number
EP1086470B1
EP1086470B1 EP99928915A EP99928915A EP1086470B1 EP 1086470 B1 EP1086470 B1 EP 1086470B1 EP 99928915 A EP99928915 A EP 99928915A EP 99928915 A EP99928915 A EP 99928915A EP 1086470 B1 EP1086470 B1 EP 1086470B1
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EP
European Patent Office
Prior art keywords
resin
mica
support
solvent
mica sheet
Prior art date
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Revoked
Application number
EP99928915A
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English (en)
French (fr)
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EP1086470A1 (de
Inventor
Alain Jacques
No[L Mortier
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COGEBI SA
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Compagnie Royale Asturienne des Mines
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Application filed by Compagnie Royale Asturienne des Mines filed Critical Compagnie Royale Asturienne des Mines
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/251—Mica
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2852—Adhesive compositions
    • Y10T428/287—Adhesive compositions including epoxy group or epoxy polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2911—Mica flake
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2738—Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2738—Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
    • Y10T442/2746—Heat-activatable adhesive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2926—Coated or impregnated inorganic fiber fabric
    • Y10T442/2951—Coating or impregnation contains epoxy polymer or copolymer or polyether
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2926—Coated or impregnated inorganic fiber fabric
    • Y10T442/2975—Coated or impregnated ceramic fiber fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2926—Coated or impregnated inorganic fiber fabric
    • Y10T442/2992—Coated or impregnated glass fiber fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3927—Including a paper or wood pulp layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3927—Including a paper or wood pulp layer
    • Y10T442/3935—Mica paper layer

Definitions

  • the present invention relates to the production of a micaceous product preferably presented in the form of a mica tape comprising a support coated with a solvent-free resin combined with a sheet of mica.
  • the present invention is relates to a process for producing a mica tape capable of impregnation subsequent to the production process itself.
  • the present invention also relates to a new micaceous product.
  • micaceous ribbons are presented under the form of a support impregnated with a resin, for example epoxy, combined with a sheet of mica.
  • a resin for example epoxy
  • This mica sheet can be mica paper, possibly reinforced with a small amount of resin, for example epoxy.
  • the first family includes the ribbons called "saturated ribbons” or “prepreg”, which are ribbons made from heavily impregnated mica paper using a Novolac type resin and having as support a glass cloth.
  • the resin content is usually between 30 and 40% of the total weight of the ribbon.
  • the epoxy resin is brought to stage B, i.e. it has already undergone curing. Then, this type of product could be wrapped on the part to be insulated and will then undergo a heat treatment of the order of 160 to 180 ° C.
  • the document EP-A-0735071 describes a solvent-free resin composition optionally intended the manufacture of a saturated micaceous tape, that is to say already fully impregnated and therefore presenting a relatively high resin content.
  • GB-A-2083849 describes a method of production of insulation tapes which consists in carrying out impregnation of a mica support at room temperature at using a solvent-free resin followed by a attachment to a support and heating of the assembly so as to reduce the viscosity of the resin, which will favor the deep impregnation of mica paper.
  • a "prepreg" type ribbon and therefore already strongly permeated.
  • the second family includes the so-called ribbons "porous", which have a relatively high resin content low of the order of 4 and 10% by total weight of the ribbon. These tapes are suitable for subsequent impregnation with method of manufacturing said ribbons and will be subject to, after wrapping, to a "VPI (Vacuum Pressure) treatment Impregnation) ", which allows you to perform in a second impregnation with resin usually without solvent.
  • the "IPV” treatment consists of immersing in the impregnating resin copper parts wrapped with porous mica tape, applying vacuum to remove any inclusion of air; then we cut the vacuum and apply pressure for several hours in order to make the post-impregnation resin penetrate into mica insulation. The whole process of post-impregnation as well as the temperature of the resin are imposed by the nature of this resin, the thickness of the insulation to be impregnated and the porosity of the mica tape used.
  • Dry ribbons are obtained before wrapping, very flexible and non-adherent, which are distinguished by a truly exceptional absorbency. They are of this used for high voltage machines (ranging up to 1000 MVA).
  • Another possibility is to impregnate a mica sheet with a liquid accelerator or a solution of a liquid or solid accelerator in a solvent with low boiling point, then sprinkle with hardener-free powder varnish mica sheet impregnated, and then either to impregnate a glass cloth a liquid accelerator or a solution of a liquid or solid accelerator in a low point solvent of boiling by sticking the support thus obtained by a action of heat and pressure with the side of the sheet of fine mica sprinkled with powder varnish, either to stick the felt serving as support by an action of pressure and heat with the side of the fine mica sheet sprinkled with powder varnish.
  • the sprinkling of a varnish requires the use of a certain amount of it.
  • the varnish will tend when sprinkled on the support, to pass through the meshes and to be found on both sides of the support.
  • the present invention aims to provide a process for manufacturing micaceous products suitable for impregnation which requires the use of a low rate resin.
  • the present invention aims to provide a technique which avoids the use of solvents for the preparation of micaceous products suitable for impregnation such as porous mica ribbons.
  • the present invention also aims to allow the production of such ribbons having a increased flexibility while having grip qualities sufficient or even increased.
  • the present invention aims to propose, in the particular case of the realization of Coiled ribbons, a process which avoids the problem of bonding between successive turns.
  • processing temperature of coating it means that the resin must be present under a non-solid form, that is to say in a more or less state viscous or liquid.
  • pressure and temperature means a treatment at a temperature between 40 and 200 ° C for a pressure included between 0 and 20 bars to allow the connection of the support with mica sheet.
  • resin intended for coating there may be mentioned epoxy resins solvent-free, solvent-free silicone adhesives or any other solvent-free resin with adequate viscosity at the temperatures at which the coating is used.
  • the medium can be either a film or fabric, or a felt.
  • the mica sheet is preferably a classic mica paper made according to usual stationery techniques.
  • This mica paper can be 100% mica paper or possibly mica paper previously reinforced with resin impregnation, for example epoxy, by a setting process in conventional work such as impregnation by coating optionally in a solvent medium.
  • the accelerator is then directly mixed with the resin.
  • an accelerator in the form of a nitrogen compound such as an amine or a compound organometallic such as Zinc Naphtenate, or any other compound having the desired catalytic effect.
  • a second object of the present invention is relates to a micaceous product suitable for impregnation comprising a support coated with a solvent-free resin associated with a mica sheet, characterized in that the resin content is between 1 and 10%, the support being a fabric on which resin deposits appear basically on the weft threads at the intersection with the chain threads.
  • the support is a tissue there will be resin deposits basically on the intersections of the weft threads with those of the chain. More specifically, we will observe traces of resin only at intersections where the weft thread is superimposed on that of the chain. This allows to obtain particularly advantageous very precise adjustment the resin content on the finished ribbon, and the rate resin is significantly lower than for products obtained by the processes of the state of the art (spraying or using a solid powder). This allows furthermore to preserve or even increase characteristics of flexibility and limiting the risks of bonding between turns when the ribbon is wound.
  • the fabric will be a woven glass fiber fabric or silk, having a grammage of 20 to 50 g / m 2 .
  • the mica sheet, and preferably the mica paper, has a basis weight between 100 and 250 g / m 2 .
  • Figure 1 shows a schematic view of a device intended to carry out the method according to the invention.
  • This device comprises on the one hand a station of coating consisting essentially of several successive cylinders, and preferably four cylinders (1, 2, 3 and 4), which allow the coating of a very low amount of resin on the support.
  • This coating unit is followed by a lamination unit which brings the two elements, i.e. the mica sheet and the support, in contact, and which exerts on the whole an action of pressure and temperature as described in figure 2.
  • This action pressure is carried out using two cylinders (5 and 6). Preferably, only one of the two cylinders will be heated.
  • ribbon A The characteristics of a mica tape as well performed (ribbon A) are shown in Table I and compared with those of a ribbon made by the so-called classical technique spraying in solvent medium (ribbon B).
  • ribbon A manufactured according to the process described above contains resin content below the rate normally required for a ribbon B manufactured by the classic spraying technique in solvent medium.
  • tape A has better flexibility, more high porosity and better tensile strength than tape B.
  • Tape A is also completely dry on the outside of the glass fabric since the resin is only located at the interface between the fabric of glass and mica paper, this characteristic limits the risks of sticking between turns of the wound ribbon.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Insulating Bodies (AREA)
  • Laminated Bodies (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Inorganic Insulating Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Reinforced Plastic Materials (AREA)

Claims (14)

  1. Verfahren zur Herstellung eines sich zur Tränkung eignenden Glimmerproduktes, wobei der Gehalt an Harz zwischen 1 und 10 % des Gesamtgewichtes des Bandes liegt, durch Vereinigung von wenigstens einem Träger mit einem Glimmerblatt, dadurch gekennzeichnet, dass man:
    eine Beschichtung mit Hilfe eines lösungsmittelfreien Harzes oder eines Gemisches von lösungsmittelfreien Harzen auf den Träger oder auf das Glimmerblatt vornimmt, wobei das besagte Harz oder die besagten Harze einen tiefer als die Anwendungstemperatur liegenden Schmelzpunkt aufweisen, dies unter Zuhilfenahme von mehreren Beschichtungswalzen, die auf eine zwischen 40 und 200°C liegende Anwendungstemperatur für die Beschichtung gebracht worden sind,
    den Träger mit dem Glimmerblatt vereinigt, und
    dieselben einer Druck- und Temperaturbehandlung unterzieht.
  2. Verfahren gemäss Anspruch 1, dadurch gekennzeichnet, dass die Druckbehandlung und die Temperaturbehandlung zwischen 40 und 200°C bei einem zwischen 0 und 20 Bar liegenden Druck durchgeführt werden.
  3. Verfahren gemäss Anspruch 1 oder 2, dadurch gekennzeichnet, dass man dem Glimmerblatt ein Tränkungsharz zusetzt, ggf. in einem Lösungsmittelmedium, dies in einer kleinen Menge und vor dem Schritt der Beschichtung.
  4. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Harz ein lösungsmittelfreies Harz des Typs Silikon oder Epoxy ist.
  5. Verfahren gemäss Anspruch 4, dadurch gekennzeichnet, dass das Harz vom Typ Bisphenol-A-Diglycidyläther ist.
  6. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man dem Beschichtungsharz einen Beschleuniger zusetzt.
  7. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man dem Glimmerblatt einen Beschleuniger zusetzt.
  8. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man dem Träger einen Beschleuniger zusetzt.
  9. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Beschleuniger eine stickstoffhaltige Verbindung, eine metallorganische Verbindung ist.
  10. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Träger ein Film, ein Gewebe oder ein Filz sein kann.
  11. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Glimmerblatt ein Glimmerpapier ist.
  12. Verfahren gemäss irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Glimmerblatt aus kalziniertem oder nicht kalziniertem Muskovit, Phlogopit, Vermiculit oder aus synthetischem Glimmer oder aus einer Verbindung derselben erzeugt wird.
  13. Glimmerhaltiges Produkt, das zur Tränkung geeignet ist, und das sich aus einem Träger zusammensetzt, der mit einem lösungsmittelfreien Harz beschichtet ist und der mit einem Glimmerblatt vereinigt ist, das nach dem Verfahren gemäss irgendeinem der vorhergehenden Ansprüche erzielt worden ist, dadurch gekennzeichnet, dass der Harzgehalt zwischen 1 und 10 % liegt, wobei der Träger aus einem Gewebe besteht, auf welchem die Harzablagerungen im wesentlichen auf den Schussfäden an der Kreuzungsstelle mit den Kettfäden erscheinen.
  14. Glimmerhaltiges Produkt gemäss Anspruch 13, das in der Form eines Glimmerbandes erscheint.
EP99928915A 1998-06-17 1999-06-17 Verfahren zum herstellen eines glimmerproduktes, das vorzugsweise in der form eines glimmerbandes erscheint, und erhaltenes produkt Revoked EP1086470B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99928915A EP1086470B1 (de) 1998-06-17 1999-06-17 Verfahren zum herstellen eines glimmerproduktes, das vorzugsweise in der form eines glimmerbandes erscheint, und erhaltenes produkt

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP98870136A EP0966001A1 (de) 1998-06-17 1998-06-17 Verfahren zur Herstellung eines Glimmerbandes und erhaltenes Produkt
EP98870136 1998-06-17
EP99928915A EP1086470B1 (de) 1998-06-17 1999-06-17 Verfahren zum herstellen eines glimmerproduktes, das vorzugsweise in der form eines glimmerbandes erscheint, und erhaltenes produkt
PCT/BE1999/000077 WO1999066515A1 (fr) 1998-06-17 1999-06-17 Procede de realisation d'un produit micace se presentant de preference sous la forme d'un ruban de mica et produit obtenu

Publications (2)

Publication Number Publication Date
EP1086470A1 EP1086470A1 (de) 2001-03-28
EP1086470B1 true EP1086470B1 (de) 2003-02-12

Family

ID=8237058

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98870136A Withdrawn EP0966001A1 (de) 1998-06-17 1998-06-17 Verfahren zur Herstellung eines Glimmerbandes und erhaltenes Produkt
EP99928915A Revoked EP1086470B1 (de) 1998-06-17 1999-06-17 Verfahren zum herstellen eines glimmerproduktes, das vorzugsweise in der form eines glimmerbandes erscheint, und erhaltenes produkt

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98870136A Withdrawn EP0966001A1 (de) 1998-06-17 1998-06-17 Verfahren zur Herstellung eines Glimmerbandes und erhaltenes Produkt

Country Status (9)

Country Link
US (1) US6699804B1 (de)
EP (2) EP0966001A1 (de)
JP (1) JP2002518220A (de)
CN (1) CN1145977C (de)
AT (1) ATE232644T1 (de)
AU (1) AU4593399A (de)
BR (1) BR9911853A (de)
DE (1) DE69905362T2 (de)
WO (1) WO1999066515A1 (de)

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US9676168B2 (en) 2010-11-19 2017-06-13 Lamart Corporation Fire barrier layer and fire barrier film laminate

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US7524557B2 (en) 2002-07-04 2009-04-28 Kabushiki Kaisha Toshiba Highly heat conductive insulating member, method of manufacturing the same and electromagnetic device
EP1530223B1 (de) * 2002-07-04 2009-02-04 Kabushiki Kaisha Toshiba Isolationselement mit hoher thermischer leitfähigkeit, verfahren zu dessen herstellung, elektromagnetische spule und elektromagnetische vorrichtung
JP4996086B2 (ja) * 2005-09-29 2012-08-08 株式会社東芝 マイカテープおよびこのマイカテープを用いた回転電機コイル
US20080026180A1 (en) * 2006-07-26 2008-01-31 Bush Robert L Impregnated inorganic paper and method for manufacturing the impregnated inorganic paper
US20120128959A1 (en) 2010-11-19 2012-05-24 Fernando Joseph A Fire barrier layer and fire barrier film laminate
US8568855B2 (en) * 2011-06-08 2013-10-29 Siemens Energy, Inc. Insulation materials having apertures formed therein
DE102011079489A1 (de) * 2011-07-20 2013-01-24 Siemens Aktiengesellschaft Verfahren zum Herstellen eines Bandes für ein elektrisches Isolationssystem
DE102011083228A1 (de) * 2011-09-22 2013-03-28 Siemens Aktiengesellschaft Isoliersysteme mit verbesserter Teilentladungsbeständigkeit, Verfahren zur Herstellung dazu
CN103700456B (zh) * 2014-01-02 2016-06-29 株洲时代电气绝缘有限责任公司 一种不使用有机溶剂的云母带生产方法
CN104532685A (zh) * 2014-11-24 2015-04-22 泉州泉港华博化工科技有限公司 一种高绝缘云母纸的制备方法
CN112677619A (zh) * 2020-12-29 2021-04-20 丹阳市沃德立电工材料有限公司 一种一体化云母带生产设备

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EP1086470A1 (de) 2001-03-28
CN1145977C (zh) 2004-04-14
DE69905362D1 (de) 2003-03-20
US6699804B1 (en) 2004-03-02
JP2002518220A (ja) 2002-06-25
ATE232644T1 (de) 2003-02-15
AU4593399A (en) 2000-01-05
EP0966001A1 (de) 1999-12-22
BR9911853A (pt) 2001-03-20
WO1999066515A1 (fr) 1999-12-23
CN1305632A (zh) 2001-07-25
DE69905362T2 (de) 2003-12-11

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