EP0282410B1 - Methode und Vorrichtung zum Imprägnieren eines länglichen Körpers - Google Patents

Methode und Vorrichtung zum Imprägnieren eines länglichen Körpers Download PDF

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Publication number
EP0282410B1
EP0282410B1 EP88400545A EP88400545A EP0282410B1 EP 0282410 B1 EP0282410 B1 EP 0282410B1 EP 88400545 A EP88400545 A EP 88400545A EP 88400545 A EP88400545 A EP 88400545A EP 0282410 B1 EP0282410 B1 EP 0282410B1
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EP
European Patent Office
Prior art keywords
substance
supply station
accordance
transfer means
transfer
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.)
Expired - Lifetime
Application number
EP88400545A
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English (en)
French (fr)
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EP0282410A3 (en
EP0282410A2 (de
Inventor
Michel Huvey
Lucien Montabord
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IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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Publication date
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Publication of EP0282410A2 publication Critical patent/EP0282410A2/de
Publication of EP0282410A3 publication Critical patent/EP0282410A3/fr
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Publication of EP0282410B1 publication Critical patent/EP0282410B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/12—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being fed round the roller
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours

Definitions

  • the present invention relates to a device and method for impregnating elongated elements with a heat-stabilizable substance.
  • the present invention provides an improvement of the device and of the method of impregnating elongated and reinforced elements, such as resistant threads or fabrics, by means of a thermosetting substance, such as a thermosetting liquid resin. .
  • heat-stabilizable substance means all substances whose characteristics are modified in a lasting or permanent manner under the action of heat and / or temperature.
  • This thermal action may be the sole action responsible for the process of modifying the characteristics of the substance, as may occur for crosslinking or vulcanization of the material.
  • This thermal action can also not be the only action to produce lasting or permanent modifications of the material, but act concomitantly with other actions, such as the oxidation or evaporation of the material, or part of it -this.
  • the heat-stabilizable substances which can be used by the invention are preferably, but not necessarily, fluid at the different temperatures imposed on the substance in the device, or according to the method according to the invention.
  • These substances can be, for example, thermosetting materials, elastomers, thermoplastics, or metals.
  • the elongated elements may be elongated reinforcing elements, such as metal reinforcing wires, polyamide, KEVLAR which is a polyaramide, the trademark of which is registered by the Dupont de Nemours Company, glass, carbon, arranged in layers of parallel wires, in braids, or in fabrics.
  • elongated reinforcing elements such as metal reinforcing wires, polyamide, KEVLAR which is a polyaramide, the trademark of which is registered by the Dupont de Nemours Company, glass, carbon, arranged in layers of parallel wires, in braids, or in fabrics.
  • thermo regulation means for example heating means, in which the impregnation substance is arranged and in which a transfer drum enters. the substance to the impregnation area of the elongated elements.
  • a radiant panel generally provides additional heating of the substance at the level of the impregnation zone.
  • the present invention makes it possible to improve the quality of impregnation of the elongated elements, in particular as regards the deeper penetration of the substance and the reduction of inclusions of air bubbles, to increase the production rate, and finally to significantly limit the loss of materials, in particular of the heat-stabilizable substance.
  • the device and method according to the present invention in many cases make it possible to reduce and even eliminate the addition of solvent to the heat-stabilizable substances.
  • it becomes possible according to the present invention by eliminating the addition of solvents to dispense with the solvent removal means which are generally used upstream of the impregnation device according to the prior art.
  • the flexibility of the implementation of the present invention allows the insertion of the proposed device in a production line continuously or discontinuously, especially when stops are there. possible.
  • the device and the method according to the invention consist notably, at the time of impregnation, in improving the characteristics of the impregnating substance, in particular in achieving the reduction in its viscosity by a rise in temperature, at by means of circumscribed heating, while keeping the substance waiting to be used at a lower temperature.
  • the temperatures of the substance at the time of impregnation, or waiting to be used can be either higher or lower than ambient temperature, or l 'one superior and the other inferior.
  • the means, such as heating or cooling means, used to maintain a temperature difference will generally be defined as thermoregulation means.
  • the invention overcomes the drawbacks of the prior art which uses a much lower and often very insufficient impregnation temperature, and results in an impasto of the transfer member and of the feeding station, a rapid evolution of the substance waiting to be used, and significant loss of substance.
  • the invention provides a device for impregnating an elongated element by transfer of heat-stabilizable substance from a substance supply station to the element by means of a transfer member, the element being moved longitudinally in front the transfer member, said transfer member comprising a movable surface passing through the station, then in front of the element, the substance being deposited on the surface at the level of the station and being transferred at least partially onto the element, in a area adjacent to said element.
  • the device is particularly characterized in that the transfer member comprises thermoregulation means, such as reheating means, adapted so that the temperature of the surface at the level of the impregnation zone is substantially higher than that of the substance in the post.
  • thermoregulation means such as reheating means
  • the supply station may include thermoregulation means adapted so that the temperature of the substance in the station is substantially lower than the temperature of the surface at the level of the impregnation zone.
  • the device may include a wringer adapted to release from the surface the substance not transferred by the element, this wringer being located upstream of said supply station.
  • the device may include a metering element placed downstream of the feeding station, this metering element being adapted to produce, on the surface, a layer of uniform substance and adjusted in thickness.
  • the device may include at least one system, such as a roller, which prepares the element to be impregnated, upstream of the zone where the element is impregnated.
  • at least one system such as a roller, which prepares the element to be impregnated, upstream of the zone where the element is impregnated.
  • the device may include means for spreading the elongated element relative to said transfer member and the transfer member may include safety drive means adapted to move the transfer member once the spreading means have been put in place. in action.
  • a part of said elongated element may be applied against a part of said transfer member, and the reinforcing element may cause said transfer member to move.
  • thermostable substance may be a thermosetting resin.
  • the transfer member may include at least one cylinder of revolution.
  • the feed station may include a tank where said substance is located and the transfer member may immerse in said tank.
  • the feed station may include a container where the substance is located and a circulation device adapted to take the substance located in the container, to route it to the transfer member and to properly coat the latter with the latter.
  • the device may include spacing means adapted to separate the transfer member from the supply station.
  • the invention also provides a method of impregnating a reinforcing element by transfer of heat-stabilizable substance from a substance supply station up to said element to be impregnated by means of a transfer member having a movable surface on which is deposited said substance.
  • This method is particularly characterized in that the surface temperature is maintained substantially higher than that of the station.
  • the elongated element 1 is, for example, composed of a set of one or more strands of reinforcing filaments placed parallel along their longitudinal axis and substantially in the same plan.
  • This elongate element 1 is supported on two preparer rollers or openers 2, of diameters, spacing and transverse arrangement adapted to the nature and dimensions of the wicks to possibly produce a rupture of the binder which agglomerates the reinforcing threads and thus allow opening the wicks.
  • the elongated element 1 is first applied to the transfer member 3 to undergo the impregnation of a defined quantity of thermosetting substance, then move away from said transfer member 3 to undergo cutting or be used directly, for example, for the continuous manufacture of armor made of composite material, in particular the armor made up of a reinforced tube, or the manufacture of a tube or 'an object by filament winding.
  • the elongated element 1 is applied to the transfer member 3, but it could also not apply to it and pass to its vicinity, the material transfer being effected by centrifugal, electrostatic or fluidics, for example.
  • the configuration described is simple and very effective.
  • the transfer member 3 comprises a cylindrical drum of circular section which rotates around an axis 4 and is driven by the intermediary of the elongated element 1, the drive of which is compulsory.
  • the transfer member 3 could also include a flexible conveyor belt mounted on rollers.
  • the interior of the transfer member 3 is lined with heating means 5, by electrical resistance, hot air or heat transfer fluid, etc., adapted to maintain a high temperature so that the substance, which behaves at this temperature like a fluid, has its lowest possible viscosity and permeates in depth the elongate element 1, without inclusion of air, sufficiently and without excess of substance.
  • the tests carried out with a transfer member 3 50 cm wide and 30 cm in diameter and with a thermosetting resin as impregnating substance, show that, depending on the speed of production, the temperature on the surface of the transfer member at the level of the impregnation zone can be comprised, for example, between 70 and 140 ° C. depending on the impregnation speed of the elongated element and the temperature of the supply station 7 comprised between 7 and 25 ° C. depending on the temperature of the water used for cooling.
  • thermosetting resin was composed of 100 parts of diglycidyl ether of bisphenol A (base), 90 parts of internal anhydride of 2.3 dicarboxylic acid, 1.5 norbonene, X methyl (hardener) and of 2 parts of benzyldimethylamine (accelerator).
  • the temperature of the feed station 7 is adapted so as to limit the chemical evolution of the substance contained in the feed station and on the other hand, to ensure the proper supply of the organ transfer 3.
  • the temperature of the transfer member 3 is adapted so that the viscosity of the impregnation substance is the lowest necessary at the level of the impregnation zone to allow correct impregnation of the elongated elements 1 and that the chemical evolution of the substance on the transfer organ is minimal.
  • thermosetting resin must remain fusible or melted in the device.
  • thermosetting substance 8 is located in the lower part of said member 3, so that the feed station can advantageously include a tray 9 where the substance 8 is located.
  • the tank 9 comprises cooling means 10, such as a cooling coil with running water, or an exchanger connected to a refrigeration unit, or alternatively cooling fins possibly placed in a forced air stream.
  • cooling means 10 such as a cooling coil with running water, or an exchanger connected to a refrigeration unit, or alternatively cooling fins possibly placed in a forced air stream.
  • the heating of the tank 9 is due to the heat coming from the transfer member 3, either directly by contact with the substance 8, or by the substance which has been deposited on the transfer member 3 at the station d 'feed 7, which was not removed during the impregnation of the elongated element 1 and which is released from the surface of the transfer member 3, either after the impregnation and upstream of the feed station 7, by a wringer 11, either downstream of the feed station by scrapers 14.
  • the upstream of a point considered is the area that an element of matter traverses during the technical process before arriving at the point considered, whereas on the contrary the downstream is the area which is reached after the point considered.
  • the cooling makes it possible to maintain the feeding station 7 for example at the temperature of 20 ° C., so as to slow down the gelling of the resin or, in general, the evolution of the impregnation substance.
  • the substance eliminated by the wringer 11 is returned to a cold zone of the tank 9 thanks to a separating partition 12, so as to stop as quickly as possible the evolution of the substance removed.
  • a separating partition 12 it is also possible to return the eliminated substance by distributing it in the vicinity of the transfer member 3, so that the substance is rapidly consumed by the impregnation.
  • the substance is prevented from stagnating on parts of the surface of the transfer member 3 which are not devoid of substance by the impregnation of the elongated element 1.
  • a metering element 13 Downstream of the feed station 7 is arranged a metering element 13 making it possible to standardize and adjust the thickness of the layer of substance with which the transfer member 3 is covered while passing through the feed station 7. The excess substance then returns to station 7.
  • the thickness of the layer is adjusted so that the wicks constituting the elongate element 1 are correctly (not enough, not too much) impregnated.
  • the feed tank 9 can conform to the geometry of the transfer member 3, so as to reduce the amount of substance located in the tank and heated by the member 3. A thickness of substance between the bottom of the tank 9 and the member 3 from 5 to 30 mm is satisfactory. However, this arrangement requires refilling the tank with fresh resin more frequently than when the tank is larger.
  • the volume of the tank can be increased.
  • the device comprises spacing means between the elongated element 1 and said organ 3.
  • These means can be composed of a roller 16 actuated by a movable arm 17 in the event of a stop.
  • the roller being initially located between the wicks 1 and the transfer member 3, then leads to the position 18 mentioned in dotted lines.
  • a safety drive member 19 will make it possible to maintain the member 3 in rotation if it does not have an independent motorization.
  • the device very variable production rates can be obtained with a production of impregnated wicks from 0.2 m / min to 100 m / min and preferably from 2 m / min to 25 m / min, without risk of gelling of the transfer member and the feeding station.
  • the quality of the impregnation is increased by the good penetration of the resin into the elongated element.
  • Figure 2 illustrates a variant of the embodiment according to the invention illustrated in Figure 1.
  • the similar elements of Figures 1 and 2 are designated by the same reference numerals.
  • the supply station 7 comprises a circulation member 21 of cylindrical shape rotating around a fixed axis 22 and taking from its periphery the impregnation substance by an immersion of this member 21 in the tank 9 filled with substance.
  • the substance removed by the circulation member 21 is routed by rotation from the member 21 to the transfer member 3 which then coats therewith.
  • the space between the transfer member 3 and the circulation member 21 is adapted to allow good coating of the latter.
  • a gear train (not shown), protected from any projections of the substance, ensures synchronization between the transfer member 3 and the circulation member 21, so as to ensure correct coating of the transfer member and correct impregnation.
  • the toothing height of these gears can be such that the drive of the circulation member 21 is possible when, by spacing means 23, the transfer members 3 and the circulation members 21 are spaced, for example for stopping advancement of the elongated elements 1, once the spacing means 16, 17 and the safety drive member 19 of the transfer member 3 have been put into action.
  • Product spacing allows the organ to be completely wrung out transfer 3 and to prevent the substance therein from undergoing a chemical evolution.
  • the feeding station includes two scrapers 24 eliminating the flanges of the circulation member 21, the impregnation substance. These scrapers are advantageously arranged just upstream of the substance 21 being removed by the member 21, so as to ensure the best possible cooling of the latter and the renewal of the substance located on its flanges.
  • the flanges of the transfer member 3 are covered with substance over a more restricted peripheral area than in the first embodiment (Fig. 1), the length of the scrapers 14 can be reduced.
  • a radiant panel For certain types of products and impregnation conditions, it is possible to add to the device, at the zone level impregnation, a radiant panel, so as to locally increase the temperature of the substance to improve the impregnation of the wicks.
  • the transfer member it is also possible to coat the transfer member by melting a block of substance placed at a temperature sufficient for it to be solid.
  • the substance wrung out by the wringing member can then, for example, be taken directly to the point of contact of the block and of the transfer member.
  • the feed station will therefore include specific means to ensure contact with the block and the transfer member.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Claims (13)

1. Vorrichtung zur Imprägnierung wenigstens eines länglichen Elementes (1) durch Überführen von thermostabiler Substanz (8) von einer Speisestation (7) für diese Substanz bis zu diesem Element (1) vermittels eines Überführungsorgans (3), wobei dieses Element (1) in Längsrichtung vor diesem Überführungsorgan (3) und dieses Überführungsorgan (3) eine bewegliche in dieser Station (7) durchlaufende Oberfläche umfaßt, dann vor diesem Element (1) vorbeibewegt wird, wobei die Substanz (8) auf dieser Fläche in Höhe dieser Station (7) abgeschieden wird und wenigstens teilweise auf dieses Element in einer diesem Element benachbarten Zone überführt wird, wobei das Überführungsorgan Wärmeregelungsmittel wie Aufheizmittel (5) umfaßt, dadurch gekennzeichnet, daß diese Regelungsmittel so ausgebildet sind, daß die Temperatur dieser Oberfläche in Höhe der Imprägnierungszone (6) wesentlich höher als die Temperatur dieser Substanz in dieser Speisestation (7) ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß diese Speisestation (7) Wärmeregelungsmittel wie Kühlmittel (10) umfaßt, die so ausgebildet sind, daß die Temperatur dieser Substanz in dieser Speisestation (7) im wesentlichen kleiner als die Temperatur dieser Oberfläche in Höhe dieser Imprägnierungszone ist.
3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß sie ein Trocknungsorgan (11) derartiger Ausbildung umfaßt, daß von dieser Oberfläche die von diesem Element nicht überführte Substanz frei gemacht wird, wobei dieses Trocknungsorgan (11) vor dieser Speisestation (7) angeordnet ist.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sie ein Dosierelement (13) umfaßt, das in Bewegungsrichtung hinter dieser Speisestation (7) angeordnet ist, wobei dieses Dosierelement (13) so ausgebildet ist, daß es auf dieser Fläche eine gleichförmige Substanzschicht (8), die in der Dicke geregelt ist, erzeugt.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie wenigstens eine Präparatorrolle (2) für dieses zu imprägnierende Element in Bewegungsrichtung vor dieser Zone (5), wo dieses Element imprägniert wird, umfaßt.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie Spreizmittel (16, 17) für dieses längliche Element (1), relativ zu diesem Überführungsorgan (3) umfaßt und daß das Überführungsorgan (3) Sicherheitsantriebsmittel (19) umfaßt, die so ausgebildet sind, daß sie dieses Überführungsorgan (3) bewegen, sobald einmal die Spreizmittel (16, 17) in Aktion getreten sind.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß ein Teil dieses länglichen Elements (1) gegen einen Teil dieses Überführungsorgans (3) sich anlegt und daß dieses Verstärkungselement dieses Überführungsorgan (3) in Bewegung mitnimmt.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß diese thermostabilisierbare Substanz ein in der Wärme härtbares Harz ist.
9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß dieses Überführungsorgan (3) ein Umdrehungszylinder ist.
10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß diese Speisestation (7) eine Wanne (9) umfaßt, worin sich diese Substanz (8) befindet und daß dieses Überführungsorgan (3) in diese Wanne taucht.
11. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß diese Speisestation (Fig. 2) eine Wanne (9) umfaßt, in der sich diese Substanz (8) befindet und daß ein Zirkulationsorgan (21), das so ausgebildet ist, das es die in dieser Wanne (9) befindliche Substanz entnimmt, sie gegen das Überführungsorgan leitet und korrekt dieses letztere mit dieser beschichtet.
12. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß sie Abstandsbildungsmittel (23) umfaßt, die so ausgebildet sind, daß sie dieses Überführungsorgan (3) von dieser Speisestation (7) entfernen.
13. Verfahren zum Imprägnieren eines Verstärkungselements durch Überführung thermostabilisierbarer Substanz von einer Speisestation (7) für diese Substanz bis zu diesem zu imprägnierenden Element (1) vermittels eines Überführungsorgans (3) das eine bewegliche Fläche hat, auf der diese Substanz abgeschieden wird, dadurch gekennzeichnet, daß man die Temperatur dieser Oberfläche im wesentlichen höher als die dieser Station hält.
EP88400545A 1987-03-09 1988-03-08 Methode und Vorrichtung zum Imprägnieren eines länglichen Körpers Expired - Lifetime EP0282410B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8703295A FR2612086B1 (fr) 1987-03-09 1987-03-09 Methode et dispositif pour l'impregnation d'un element allonge
FR8703295 1987-03-09

Publications (3)

Publication Number Publication Date
EP0282410A2 EP0282410A2 (de) 1988-09-14
EP0282410A3 EP0282410A3 (en) 1989-09-27
EP0282410B1 true EP0282410B1 (de) 1991-11-06

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EP88400545A Expired - Lifetime EP0282410B1 (de) 1987-03-09 1988-03-08 Methode und Vorrichtung zum Imprägnieren eines länglichen Körpers

Country Status (7)

Country Link
US (1) US4932352A (de)
EP (1) EP0282410B1 (de)
JP (1) JPH0819617B2 (de)
BR (1) BR8801036A (de)
DE (1) DE3865987D1 (de)
FR (1) FR2612086B1 (de)
NO (1) NO174695C (de)

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US5435872A (en) * 1991-11-01 1995-07-25 Decc Technology Partnership Sized coated pistons
US5266142A (en) * 1991-11-01 1993-11-30 Decc Technology Partnership A Limited Partnership Coated piston and method and apparatus of coating the same
US5435873A (en) * 1991-11-01 1995-07-25 Decc Technology Partnership, A Limited Partnership Of Which The Decc Company, Inc. Is A General Partner Method and apparatus for sizing a piston
US5552012A (en) * 1994-09-09 1996-09-03 Kimberly-Clark Corporation Placement of electric-field-responsive material onto a substrate
DE59502525D1 (de) * 1995-10-10 1998-07-16 Chimitex Sarl Vorrichtung zum Schlichten von Webketten
FR2744040B1 (fr) * 1996-01-26 1998-04-10 Inst Francais Du Petrole Procede et dispositif pour l'amelioration de l'impregnation de fils pour materiau composite
US6495267B1 (en) 2001-10-04 2002-12-17 Briggs & Stratton Corporation Anodized magnesium or magnesium alloy piston and method for manufacturing the same
ITVR20130210A1 (it) * 2013-09-05 2015-03-06 Albert Zandonai Macchina per il trasferimento di fluidi ad un nastro e metodo di funzionamento associato

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Also Published As

Publication number Publication date
NO174695C (no) 1994-06-22
NO881004D0 (no) 1988-03-07
BR8801036A (pt) 1988-10-18
EP0282410A3 (en) 1989-09-27
EP0282410A2 (de) 1988-09-14
FR2612086A1 (fr) 1988-09-16
US4932352A (en) 1990-06-12
FR2612086B1 (fr) 1989-08-18
JPH0819617B2 (ja) 1996-02-28
NO881004L (no) 1988-09-12
DE3865987D1 (de) 1991-12-12
JPS63243362A (ja) 1988-10-11
NO174695B (no) 1994-03-14

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