FR2664624A1 - Activated carbon fabric and process and yarn for its manufacture - Google Patents
Activated carbon fabric and process and yarn for its manufacture Download PDFInfo
- Publication number
- FR2664624A1 FR2664624A1 FR9008971A FR9008971A FR2664624A1 FR 2664624 A1 FR2664624 A1 FR 2664624A1 FR 9008971 A FR9008971 A FR 9008971A FR 9008971 A FR9008971 A FR 9008971A FR 2664624 A1 FR2664624 A1 FR 2664624A1
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- fabric
- core
- composite yarn
- sep
- carbon
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/145—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
- D01F9/225—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles from stabilised polyacrylonitriles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
- Carbon And Carbon Compounds (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
Tissu de carbone activé et procédé et fil pour sa fabrication.Activated carbon fabric and process and thread for its manufacture.
La présente invention concerne un tissu de carbone activé. The present invention relates to an activated carbon fabric.
Le carbone activé est bien connu pour sa capacité à adsorber des gaz nocifs. Il se présente généralement sous forme de poudre ou de grains de charbon actif. Activated carbon is well known for its ability to adsorb harmful gases. It is usually in the form of powder or grains of activated carbon.
Dans certaines applications, notamment pour la protection des personnes en atmosphère hostile ou pour la réalisation de filtres industriels, il est intéressant de disposer de carbone activé sous forme d'un tissu. In some applications, particularly for the protection of people in a hostile atmosphere or for the production of industrial filters, it is advantageous to have activated carbon in the form of a fabric.
La présente invention a pour but de fournir un tissu activé qui allie un caractère fortement actif avec une grande résistance mécanique, ce que ne permettent pas les tissus de carbone connus. The object of the present invention is to provide an activated tissue which combines a highly active character with a high mechanical strength, which is not possible with known carbon fabrics.
Le but est atteint grâce à un tissu de carbone constitué au moins en partie de fils formés d'une âme en fibres de carbone de résistance élevée recouverte d'une couche de carbone fortement actif. The goal is achieved by a carbon fabric consisting at least in part of son formed of a core of high strength carbon fiber coated with a layer of highly active carbon.
L'invention a aussi pour but de proposer un procédé permettant la fabrication d'un tel tissu. The invention also aims to provide a method for the manufacture of such a fabric.
Selon l'invention, ce procédé comprend les étapes qui consistent à - réaliser un tissu au moyen d'un fil composite comprenant une âme en fibres donnant, après carbonisation, des fibres de carbone de résistance élevée, et un revêtement formé par un matériau donnant, après carbonisation et activation, un carbone fortement actif, - carboniser le tissu, et - activer le tissu carbonisé. According to the invention, this method comprises the steps of: - producing a fabric by means of a composite yarn comprising a fiber core giving, after carbonization, high strength carbon fibers, and a coating formed by a material giving after charring and activation, a strongly active carbon, - carbonize the tissue, and - activate the charred tissue.
L'âme du fil utilisé pour la fabrication du tissu est en fibres de précurseur du carbone, notamment telles que celles utilisées pour constituer des textures de renfort de pièces composites, par exemple en fibres de polyacrylonitrile (PAN) préoxydé. The core of the yarn used for the manufacture of the fabric is carbon precursor fibers, especially such as those used to form reinforcement textures of composite parts, for example preoxidized polyacrylonitrile (PAN) fibers.
L'âme du fil est recouverte d'un matériau susceptible de donner un carbone actif après carbonisation, par exemple une viscose ou une résine phénolique. The core of the wire is covered with a material capable of giving an active carbon after carbonization, for example a viscose or a phenolic resin.
Le recouvrement de l'âme peut être réalisé de différentes façons, par exemple en utilisant un procédé de filage par friction, ou par guipage. The recovery of the core can be achieved in various ways, for example by using a friction spinning process, or by wrapping.
Après tissage, le tissu est soumis à carbonisation, puis à activation, ces deux opérations pouvant être réalisées de façon conventionnelle. After weaving, the fabric is subjected to carbonization and activation, both of which can be carried out conventionally.
Le tissu obtenu est remarquable en ce que, dans le fil composite qui le compose, l'âme carbone assure à la fois la fonction mécanique, pour donner au tissu la résistance mécanique recherchée, et le rôle de support du revêtement en carbone activé qui assure la fonction adsorption, avec une parfaite compatibilité et une parfaite liaison entre l'âme et son revêtement. The fabric obtained is remarkable in that, in the composite yarn which composes it, the carbon core provides both the mechanical function, to give the fabric the desired mechanical strength, and the supporting role of the activated carbon coating which ensures the adsorption function, with perfect compatibility and a perfect connection between the core and its coating.
D'autres particularités ressortiront à la lecture de la description faite ci-après, à titre indicatif mais non limitatif, en référence aux dessins annexés sur lesquels - la figure 1 indique les différentes étapes d'un mode de mise en oeuvre du procédé selon l'invention, et - la figure 2 illustre très schématiquement un mode de réalisation d'une couche de recouvrement d'une âme pour former un fil composite apte à être utilisé dans le procédé de la figure 1. Other particularities will appear on reading the description given below, by way of indication but not limitation, with reference to the accompanying drawings in which - Figure 1 shows the various steps of an embodiment of the method according to the invention. invention, and - Figure 2 illustrates very schematically an embodiment of a core covering layer to form a composite wire suitable for use in the method of Figure 1.
Comme illustré par la figure 1, la réalisation d'un tissu en carbone activé comprend les étapes suivantes - formation d'un fil composite précurseur (étape 10), - tissage du fil composite précurseur (étape 12), - carbonisation du tissu de fil composite précurseur (étape 14), et, - activation du tissu carbonisé (étape 16). As illustrated in FIG. 1, the production of an activated carbon fabric comprises the following steps - formation of a precursor composite yarn (step 10), - weaving of the precursor composite yarn (step 12), - carbonization of the yarn fabric precursor composite (step 14), and - activation of the carbonized fabric (step 16).
La formation du fil composite précurseur consiste à recouvrir un fil d'âme en précurseur de carbone par un revêtement précurseur de carbone actif. The formation of the precursor composite yarn involves coating a carbon precursor core wire with an active carbon precursor coating.
Le fil d'âme est formé par des fibres susceptibles de produire, après traitement thermique, des fibres de carbone de résistance mécanique élevée. A titre d'exemple, des matériaux précurseurs convenant à la réalisation du fil d'âme sont, notamment, le polyacrylonitrile (PAN) préoxydé, la viscose, le brai. The core wire is formed by fibers capable of producing, after heat treatment, carbon fibers of high mechanical strength. By way of example, precursor materials that are suitable for producing the core yarn include, in particular, preoxidized polyacrylonitrile (PAN), viscose, pitch.
La couverture du fil d'âme est en un matériau pouvant donner du carbone actif après traitement thermique et activation. A titre d'exemple, un tel matériau peut être une viscose ou une résine phénolique, sous forme de fibres. The cover of the core wire is made of a material that can give active carbon after heat treatment and activation. By way of example, such a material may be a viscose or a phenolic resin, in the form of fibers.
La couverture du fil d'âme est réalisable de différentes façons. The cover of the core wire is achievable in different ways.
La figure 2 illustre un procédé de recouvrement selon lequel le fil d'âme 30 est guipé au moyen d'un fil 40, par exemple obtenu à partir de viscose, qui est enroulé en hélice autour du fil 30. Le guipage peut le cas échéant être réalisé au moyen de plusieurs fils. FIG. 2 illustrates a covering method according to which the core wire 30 is wrapped by means of a wire 40, for example obtained from viscose, which is wound helically around the wire 30. The wrapping may, where appropriate be made by means of several threads.
Selon un autre procédé, le fil composite est réalisé au moyen d'une machine de filage par friction connue sous la dénomination DREF 3", de la société autrichienne Dr. Ernst Fehrer
Gesellschaft m.b.H. & Co. KG. Textilmaschinenfabrik U. Stahlbau.According to another method, the composite yarn is produced by means of a friction spinning machine known under the name DREF 3 ", from the Austrian company Dr. Ernst Fehrer
Gesellschaft mbH & Co. KG. Textilmaschinenfabrik U. Stahlbau.
Le procédé mis en oeuvre par cette machine est décrit notamment dans un article de Dr. Ernst Fehrer paru dans la publication
Textil Praxis Int. 1986, Oktober, p. 1045-1047, et dans la demande de brevet FR 2 567 162. Ce procédé consiste essentiellement à amener des fibres enveloppantes, formant la couverture du fil composite, entre deux tambours de filage coaxiaux qui reçoivent une mèche de fibres étirée formant le fil d'âme.The method implemented by this machine is described in particular in an article by Dr. Ernst Fehrer published in the publication
Textil Praxis Int. 1986, Oktober, p. 1045-1047, and in the patent application FR 2,567,162. This process consists essentially in bringing enveloping fibers, forming the cover of the composite yarn, between two coaxial spinning drums which receive a strand of drawn fibers forming the yarn. soul.
Afin de donner au tissu de carbone finalement obtenu un pouvoir d'adsorption relativement élevé, il est souhaitable que le pourcentage en poids de l'âme dans le fil composite précurseur soit au plus égal à 50 %, par exemple compris entre 20 et 50 %. In order to give the finally obtained carbon fabric a relatively high adsorption power, it is desirable that the percentage by weight of the core in the precursor composite yarn is not more than 50%, for example between 20 and 50% .
Le tissage du fil composite précurseur est réalisé de manière à donner au tissu l'armure souhaitée. The weave of the precursor composite yarn is made to give the fabric the desired weave.
Des fils supplémentaires précurseurs du carbone autres que le fil composite pourront être introduits au moment du tissage, la nature des fils supplémentaires étant choisie soit pour renforcer les propriétés mécaniques du tissu, soit pour renforcer son caractère actif, selon l'application envisagée. Additional carbon precursor yarns other than the composite yarn may be introduced at the time of weaving, the nature of the additional yarns being chosen either to reinforce the mechanical properties of the fabric or to reinforce its active nature, depending on the intended application.
Le tissu obtenu avec le fil composite est soumis à un traitement thermique afin de carboniser le fil précurseur utilisé. The fabric obtained with the composite yarn is subjected to a heat treatment to carbonize the precursor yarn used.
La carbonisation est effectuée en atmosphère neutre. Carbonization is carried out in a neutral atmosphere.
Elle peut être continue ou discontinue. Dans le premier cas, le tissu est placé dans une enceinte où la température est élevée progressivement jusqutà 9000 environ, la durée du traitement étant d'environ 1 heure. Dans le deuxième cas, le tissu est d'abord placé dans une enceinte où la température est élevée progressivement jusqu'à une température intermédiaire, par exemple comprise entre 350 et 5500C. Ensuite, le tissu est déplacé de façon continue dans un tunnel où règne une température d'environ 9000C
Après carbonisation, l'activation du tissu est effectuée dans un four en atmosphère oxydante constituée par exemple par un mélange d'azote et de dioxyde de carbone. Le traitement d'activation est effectué à une température comprise entre 800 et 10000C pendant une durée comprise entre 1 h et 3 h 30.Le dioxyde de carbone est régulièrement renouvelé dans le four, le taux de renouvellement par rapport au volume du four (volume de C02 globalement utilisé par rapport au volume du four) étant compris entre 2 et 40.It can be continuous or discontinuous. In the first case, the tissue is placed in an enclosure where the temperature is gradually raised to about 9000, the duration of treatment being about 1 hour. In the second case, the fabric is first placed in an enclosure where the temperature is gradually raised to an intermediate temperature, for example between 350 and 5500C. Then, the fabric is moved continuously in a tunnel where a temperature of about 9000C reigns
After carbonization, the activation of the fabric is carried out in a furnace in an oxidizing atmosphere constituted for example by a mixture of nitrogen and carbon dioxide. The activation treatment is carried out at a temperature of between 800 and 10000 ° C. for a period of between 1 h and 3 h 30. The carbon dioxide is regularly renewed in the oven, the renewal rate relative to the volume of the oven (volume of C02 generally used in relation to the volume of the oven) being between 2 and 40.
Un exemple de réalisation d'un tissu en carbone actif sera maintenant décrit. An embodiment of an active carbon fabric will now be described.
Un fil composite précurseur de 250 tex est formé par revêtement d'une âme en fibres PAN préoxydé par des fibres en résine phénolique, au moyen de la machine "DREF 3" précitée. A precursor composite yarn of 250 tex is formed by coating a PAN fiber core preoxidized with phenolic resin fibers using the aforementioned "DREF 3" machine.
Dans le fil composite obtenu, le PAN préoxydé constituant l'âme représente 29% en poids tandis que la résine phénolique représente 45% en poids dans la partie parallèle à l'âme et 22% en poids dans la partie formant revêtement extérieur radial. In the composite yarn obtained, the preoxidized PAN constituting the core is 29% by weight while the phenolic resin is 45% by weight in the portion parallel to the core and 22% by weight in the radial outer coating portion.
Le fil composite précurseur est tissé pour former un tissu d'armure sergé 2 lie 2. Le tissu est carbonisé dans une enceinte en atmosphère neutre en élevant progressivement la température depuis la température ambiante jusqu'à 9000C, la durée totale du traitement étant d'une heure. The precursor composite yarn is woven to form a twill weave fabric 2 lies 2. The fabric is carbonized in an enclosure in a neutral atmosphere by gradually raising the temperature from room temperature to 9000C, the total duration of treatment being one o'clock.
Après carbonisation, le tissu est soumis à un cycle d'activation. Celui-ci a été réalisé sur deux échantillons A et B de tissu carbonisé, pendant 2 h 30, sous une atmosphère de dioxyde 3 de carbone et d'azote, avec des débits respectifs de 0,3 m3/h et 0,2 m3/h. Le premier échantillon (A) a été activé à une température de 9300C et le second (B) à une température de 9400C. After charring, the tissue is subjected to an activation cycle. This was carried out on two samples A and B of carbonized fabric, for 2 h 30, under an atmosphere of carbon dioxide and nitrogen, with flow rates of 0.3 m3 / h and 0.2 m3 respectively. / h. The first sample (A) was activated at a temperature of 9300C and the second sample (B) at a temperature of 9400C.
Le tableau ci-dessous donne les valeurs de taux de reprise d'humidité TRH et de taux d'usure mesurées sur les échantillons A et B
<tb> Echantillon <SEP> I <SEP> Température <SEP> I <SEP> <SEP> TRH <SEP> (%) <SEP> I <SEP> <SEP> Usure <SEP> (%)
<tb> <SEP> I <SEP> d'activation <SEP> I
<tb> <SEP> j <SEP> (0C) <SEP> j <SEP>
<tb> <SEP> I# <SEP> I <SEP> I
<tb> <SEP> I <SEP> I <SEP> I
<tb> <SEP> A <SEP> 1 <SEP> <SEP> 930 <SEP> 1 <SEP> 24 <SEP> i <SEP> <SEP> 28,5
<tb> <SEP> I~ <SEP> I
<tb> <SEP> B <SEP> 1 <SEP> <SEP> 940 <SEP> 1 <SEP> <SEP> 31 <SEP> 1 <SEP> <SEP> 44
<tb>
Le taux de reprise d'humidité a été déterminé en mesurant la prise de poids d'un échantillon de tissu sec étuvé après avoir fait séjourner celui-ci en atmosphère humide (65 % d'humidité relative à une température de 20 C) pendant 24 h. Il permet d'évaluer la capacité d'adsorption du tissu.<tb> Sample <SEP> I <SEP> Temperature <SEP> I <SEP><SEP> TRH <SEP> (%) <SEP> I <SEP><SEP> Wear <SEP> (%)
<tb><SEP> I <SEP> activation <SEP> I
<tb><SEP> j <SEP> (0C) <SEP> j <SEP>
<tb><SEP> I # <SEP> I <SEP> I
<tb><SEP> I <SEP> I <SEP> I
<tb><SEP> A <SEP> 1 <SEP><SEP> 930 <SEP> 1 <SEP> 24 <SEP> i <SEP><SEP> 28.5
<tb><SEP> I ~ <SEP> I
<tb><SEP> B <SEP> 1 <SEP><SEP> 940 <SEP> 1 <SEP><SEP> 31 <SEP> 1 <SEP><SEP> 44
<Tb>
The rate of moisture uptake was determined by measuring the weight gain of a sample of dry parboiled fabric after having stored it in a humid atmosphere (65% relative humidity at a temperature of 20 C) for 24 hours. h. It makes it possible to evaluate the adsorption capacity of the fabric.
Le taux d'usure désigne ici la perte de masse relative 2 lors de l'activation. Si Mo désigne la masse au m du tissu carbonisé non activé et Mi la masse au m du tissu activé, le taux d'usure en % s'exprime donc par 100(Mi-Mo)/Mo. La valeur Mi pourra être corrigée pour tenir compte du retrait que provoque l'activation sur le tissu dans les directions de chaîne et de trame. Le taux d'usure est corrélé avec la résistance du tissu à la traction (cette résistance étant d'autant plus élevée que le taux d'usure est plus faible). The wear rate here refers to the loss of relative mass 2 during activation. If Mo denotes the mass at the m of the nonactivated carbonized fabric and the mass at the m of the activated tissue, the% wear rate is therefore expressed as 100 (Mi-Mo) / Mo. The Mi value can be corrected to account for the shrinkage that activates on the fabric in the warp and weft directions. The rate of wear is correlated with the tensile strength of the fabric (this resistance being all the higher as the wear rate is lower).
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9008971A FR2664624B1 (en) | 1990-07-13 | 1990-07-13 | ACTIVE CARBON FABRIC AND METHOD AND YARN FOR THE PRODUCTION THEREOF. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9008971A FR2664624B1 (en) | 1990-07-13 | 1990-07-13 | ACTIVE CARBON FABRIC AND METHOD AND YARN FOR THE PRODUCTION THEREOF. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2664624A1 true FR2664624A1 (en) | 1992-01-17 |
| FR2664624B1 FR2664624B1 (en) | 1993-09-03 |
Family
ID=9398704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9008971A Expired - Fee Related FR2664624B1 (en) | 1990-07-13 | 1990-07-13 | ACTIVE CARBON FABRIC AND METHOD AND YARN FOR THE PRODUCTION THEREOF. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2664624B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034134A2 (en) * | 1995-04-25 | 1996-10-31 | Mccullough Francis P | Flexible ignition resistant biregional fiber, articles made from biregional fibers, and method of manufacture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3639953A (en) * | 1969-08-07 | 1972-02-08 | Kanegafuchi Spinning Co Ltd | Method of producing carbon fibers |
| DE2933926A1 (en) * | 1979-08-22 | 1981-03-12 | Verseidag-Industrietextilien Gmbh, 4150 Krefeld | Prodn. of textile webs armoured by carbon fibres - created in situ by pyrolysing cellulose or acrylic copds. |
| EP0149333A2 (en) * | 1983-12-29 | 1985-07-24 | C C Developments Limited | Carbonisable fabrics |
-
1990
- 1990-07-13 FR FR9008971A patent/FR2664624B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3639953A (en) * | 1969-08-07 | 1972-02-08 | Kanegafuchi Spinning Co Ltd | Method of producing carbon fibers |
| DE2933926A1 (en) * | 1979-08-22 | 1981-03-12 | Verseidag-Industrietextilien Gmbh, 4150 Krefeld | Prodn. of textile webs armoured by carbon fibres - created in situ by pyrolysing cellulose or acrylic copds. |
| EP0149333A2 (en) * | 1983-12-29 | 1985-07-24 | C C Developments Limited | Carbonisable fabrics |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034134A2 (en) * | 1995-04-25 | 1996-10-31 | Mccullough Francis P | Flexible ignition resistant biregional fiber, articles made from biregional fibers, and method of manufacture |
| WO1996034134A3 (en) * | 1995-04-25 | 1996-12-05 | Francis P Mccullough | Flexible ignition resistant biregional fiber, articles made from biregional fibers, and method of manufacture |
| EP0949364A2 (en) * | 1995-04-25 | 1999-10-13 | McCullough, Francis P. | Flexible ignition resistant biregional fiber, articles made from biregional fibers, and method of manufacture |
| EP0949364A3 (en) * | 1995-04-25 | 1999-10-20 | McCullough, Francis P. | Flexible ignition resistant biregional fiber, articles made from biregional fibers, and method of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2664624B1 (en) | 1993-09-03 |
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