WO2001044091A2 - Method and device for applying a prefabricated adhesive mixture to a roller - Google Patents

Method and device for applying a prefabricated adhesive mixture to a roller Download PDF

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Publication number
WO2001044091A2
WO2001044091A2 PCT/EP2000/011876 EP0011876W WO0144091A2 WO 2001044091 A2 WO2001044091 A2 WO 2001044091A2 EP 0011876 W EP0011876 W EP 0011876W WO 0144091 A2 WO0144091 A2 WO 0144091A2
Authority
WO
WIPO (PCT)
Prior art keywords
protective film
adhesive mixture
roller
applying
metal core
Prior art date
Application number
PCT/EP2000/011876
Other languages
German (de)
French (fr)
Other versions
WO2001044091A3 (en
Inventor
Stanislaus Cyzycki
Wilhelm Heinen
Original Assignee
Felix Böttcher Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Felix Böttcher Gmbh & Co. Kg filed Critical Felix Böttcher Gmbh & Co. Kg
Priority to AU23602/01A priority Critical patent/AU2360201A/en
Priority to EP00987310A priority patent/EP1237806A2/en
Publication of WO2001044091A2 publication Critical patent/WO2001044091A2/en
Publication of WO2001044091A3 publication Critical patent/WO2001044091A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/005—Coating of the composition; Moulding; Reclaiming; Finishing; Trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/04—Intermediate layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1844—Parts concerned
    • B65H2701/18444—Helically wound material

Definitions

  • the present invention relates to a method for applying a prefabricated layer of an adhesive mixture provided with a removable protective film to a roller with a metal core which is then to be coated with elastomeric material, and a corresponding device for carrying out the method.
  • rollers with a metal core coated with elastomeric material are already being manufactured and used to a considerable extent.
  • a disadvantage of these rollers is that they lead to damage and complaints, especially in the case of heavy mechanical stress, because the elastomer coating can detach from the metal core.
  • the metal core is therefore equipped with a liquid adhesive layer, which, however, has to dry before the elastomer layer is applied. If this coating material contains organic solvents, this drying requires additional measures for the harmless removal of these solvents and possibly even plants for recovery.
  • Another possibility is to coat the metal core with a prefabricated layer of an adhesive mixture provided with a removable protective film. Then the coating with the actual elastomeric material takes place.
  • the object of the invention is therefore to provide a method for applying a prefabricated layer of an adhesive mixture provided with a removable protective film on a roller which is subsequently to be coated with elastomer material and which has a metal core and which can be carried out quickly, safely and easily, can be used for a wide variety of roll lengths and roll diameters and also ensures that there is only a relatively short time between removing the protective film and applying the elastomeric material.
  • the layer provided with the removable protective film is applied in the form of longer strips which are wound in the form of a roll and overlap in a spiral manner on the metal core, the corresponding part of the protective film being simultaneously pulled off and wound up.
  • the layer of the adhesive mixture is generally 0.4 to 1.7 mm. In practice, thicknesses of 0.6 to 0.8 mm are particularly suitable.
  • the roll-shaped strips can be made available in widths between 50 and 200 mm. In practice, a width of approx. 100 mm has proven to be excellent.
  • the length of these strips can be chosen almost arbitrarily, the rolls with these strips should still be easy to handle. In any case, the length of the strips is several meters. These strips can for example be produced by cutting correspondingly wider rolls into narrower rolls. Because of the stickiness and thermal deformability of the adhesive mixture, however, it is advantageous to cut correspondingly wide webs into strips of the desired width and then to wind them up.
  • the strips thus produced are applied in an overlapping spiral shape on the metal core. With an overlap of approximately 50% of the width of the strip, a double coating of the roll core is obtained. With a thickness of the layer of 0.7 mm, the thickness of the applied adhesive mixture is 1.4 mm, regardless of the length and diameter of the roll core.
  • the method is preferably carried out on a device which consists of a conventional coating system and additionally has a rotatable, laterally displaceable holder for the roll-shaped strip and a mechanically drivable also laterally displaceable winding device for the removed protective film.
  • the device preferably has a driven spindle which leads to the simultaneous displacement of the holder and the unwinding device.
  • the drive of the winding device preferably has a slip clutch in order to ensure a uniform winding tension regardless of the amount of protective film already wound.
  • roller core can thus be coated in the same coating system without retrofitting, firstly with the adhesive mixture from one side and then with the elastomeric material from the other side, in order to then be vulcanized and finished in the usual way.
  • the method according to the invention and the device usable according to the invention also ensure that only as much protective film is removed from the adhesive mixture as is used immediately. This also prevents the functionality of the adhesive mixture from suffering from dust or other soiling.
  • the inventive method and the inventive device make it much easier to switch from liquid precoatings to the use of prefabricated adhesive mixtures with a protective film and thus to avoid the disadvantages of the prior art described above.

Abstract

The invention relates to a method for applying a prefabricated layer of an adhesive mixture that is provided with a peel-off protective film to a metal-core roller that is subsequently coated with an elastomer material. According to the inventive method, the layer provided with the peel-off protective film is applied to the metal core in the form of longish strips wound up like on a reel so that the strips overlap and extend spirally, while at the same time the corresponding part of the protective film is peeled off and wound up.

Description

Verfahren zum Aufbringen einer vorgefertigten Haftmischunq auf einer Walze und Vorrichtung zur Durchführung desselben Process for applying a prefabricated adhesive mixture to a roller and device for carrying it out
Gegenstand der vorliegenden Erfindung ist ein Verfahren zum Aufbringen einer vorgefertigten, mit einer abziehbaren Schutzfolie versehenen Schicht einer Haftmischung auf einer anschließend mit elastomerem Material zu beschichtenden Walze mit einem Metallkern sowie eine entsprechende Vorrichtung zur Durchführung des Verfahrens.The present invention relates to a method for applying a prefabricated layer of an adhesive mixture provided with a removable protective film to a roller with a metal core which is then to be coated with elastomeric material, and a corresponding device for carrying out the method.
Mit elastomerem Material beschichtete Walzen mit einem Metallkern werden bereits in erheblichem Umfang hergestellt und verwendet. Ein Nachteil dieser Walzen ist, dass sie insbesondere bei starker mechanischer Beanspruchung zu Schäden und Reklamationen führen, weil sich die elastomere Beschichtung vo Metallkern ablösen kann. Es wird daher der Metallkern in einigen Fällen mit einer flüssigen Haftschicht ausgerüstet, die jedoch vor dem Auftragen der elastome- ren Schicht antrocknen muss. Sofern dieses Beschichtungsmaterial organische Lösungsmittel enthält, erfordert dieses Antrocknen zusätzliche Maßnahmen zur schadlosen Entfernung dieser Lösungsmittel sowie gegebenenfalls sogar Anlagen zur Wiedergewinnung.Rollers with a metal core coated with elastomeric material are already being manufactured and used to a considerable extent. A disadvantage of these rollers is that they lead to damage and complaints, especially in the case of heavy mechanical stress, because the elastomer coating can detach from the metal core. In some cases, the metal core is therefore equipped with a liquid adhesive layer, which, however, has to dry before the elastomer layer is applied. If this coating material contains organic solvents, this drying requires additional measures for the harmless removal of these solvents and possibly even plants for recovery.
Eine andere Möglichkeit besteht darin, den Metallkern mit einer vorgefertigten, mit einer abziehbaren Schutzfolie versehenen Schicht einer Haftmischung zu beschichten. Anschließend erfolgt dann die Beschichtung mit dem eigentlichen elastomeren Material.Another possibility is to coat the metal core with a prefabricated layer of an adhesive mixture provided with a removable protective film. Then the coating with the actual elastomeric material takes place.
Dieses Verfahren hat sich in der Praxis nicht durchsetzen können, da das Aufbringen der Haftmischung mit erheblichem Aufwand verbunden ist. Es muss entweder die mit der Haftmischung vorbeschichtete Walze umgesetzt werden in eine zweite Beschichtungsanlage, auf der das eigentliche elastomere Material aufgetragen wird oder aber es muss die Beschichtungsanlage für jeden Walzenkern zweimal umgerüstet werden. Ein weiterer Nachteil besteht darin, dass für jede Walzenlänge und jeden Walzendurchmesser anders dimensionierte Platten der Haftmischung hergestellt und bereitgestellt werden müssen. Bei längeren Walzen muss die Platte der Haftmischung auf entsprechende Länge geschnitten und quer in die Beschichtungsanlage eingeführt werden. Dabei bereitet das Abziehen der Schutzfolie weitere Schwierigkeiten und erfordert manuelles Geschick. Schließlich ist zu beachten, dass das Material der Haftmischung gegen Feuchtigkeit empfindlich ist und deshalb möglichst rasch nach dem Abziehen der Schutzfolie mit dem elastomeren Material zu beschichten ist, da es anderenfalls zu Qualitätseinbussen bei den fertigen Walzen kommt.This method has not been successful in practice since the application of the adhesive mixture is associated with considerable effort. Either the roller pre-coated with the adhesive mixture has to be converted into a second coating system, on which the actual elastomeric material is applied, or the coating system has to be converted twice for each roller core. Another disadvantage is that plates of the adhesive mixture of different dimensions have to be produced and provided for each roll length and each roll diameter. In the case of longer rolls, the plate of the adhesive mixture must be cut to the appropriate length and introduced transversely into the coating system. The removal of the protective film causes further difficulties and requires manual skill. Finally, it should be noted that the material of the adhesive mixture is sensitive to moisture and must therefore be coated with the elastomeric material as soon as possible after the protective film has been removed, since otherwise the finished rollers lose quality.
Die Erfindung hat sich somit die Aufgabe gestellt, ein Verfahren zum Aufbringen einer vorgefertigten, mit einer abziehbaren Schutzfolie versehenen Schicht einer Haftmischung auf einer anschließend mit elastomerem Material zu beschichtenden Walze mit einem Metallkern zur Verfügung zu stellen, welches schnell, sicher und einfach durchführbar ist, für die verschiedensten Walzenlängen und Walzendurchmesser einsetzbar ist und darüber hinaus gewährleistet, dass zwischen Abziehen der Schutzfolie und dem Aufbringen des elastomeren Materials nur eine relativ kurze Zeit vergeht.The object of the invention is therefore to provide a method for applying a prefabricated layer of an adhesive mixture provided with a removable protective film on a roller which is subsequently to be coated with elastomer material and which has a metal core and which can be carried out quickly, safely and easily, can be used for a wide variety of roll lengths and roll diameters and also ensures that there is only a relatively short time between removing the protective film and applying the elastomeric material.
Diese Aufgabe wird dadurch gelöst, dass die mit der abziehbaren Schutzfolie versehene Schicht in Form von rollenförmig aufgewickelten längeren Streifen überlappend spiralförmig auf dem Metallkern aufgebracht wird, wobei gleichzeitig der entsprechende Teil der Schutzfolie abgezogen und aufgewickelt wird.This object is achieved in that the layer provided with the removable protective film is applied in the form of longer strips which are wound in the form of a roll and overlap in a spiral manner on the metal core, the corresponding part of the protective film being simultaneously pulled off and wound up.
Die Schicht der Haftmischung beträgt im allgemeinen 0,4 bis 1,7 mm. In der Praxis sind Dicken von 0,6 bis 0,8 mm besonders geeignet. Die rollenförmigen Streifen können in Breiten zwischen 50 und 200 mm zur Verfügung gestellt werden. In der Praxis hat sich eine Breite von ca. 100 mm ausgezeichnet bewährt. Die Länge dieser Streifen kann nahezu beliebig gewählt werden, wobei die Rollen mit diesen Streifen noch gut handhabbar bleiben sollen. Auf alle Fälle beträgt die Länge der Streifen mehrere Meter. Diese Streifen können beispiels- weise hergestellt werden, indem entsprechend breitere Rollen zu schmäleren Rollen zerschnitten werden. Aufgrund der Klebrigkeit und thermischen Verformbarkeit der Haftmischung ist es jedoch vorteilhaft, entsprechend breite Bahnen zu Streifen der gewünschten Breite zu schneiden und erst danach aufzuwickeln.The layer of the adhesive mixture is generally 0.4 to 1.7 mm. In practice, thicknesses of 0.6 to 0.8 mm are particularly suitable. The roll-shaped strips can be made available in widths between 50 and 200 mm. In practice, a width of approx. 100 mm has proven to be excellent. The length of these strips can be chosen almost arbitrarily, the rolls with these strips should still be easy to handle. In any case, the length of the strips is several meters. These strips can for example be produced by cutting correspondingly wider rolls into narrower rolls. Because of the stickiness and thermal deformability of the adhesive mixture, however, it is advantageous to cut correspondingly wide webs into strips of the desired width and then to wind them up.
Die so hergestellten Streifen werden überlappend spiralförmig auf dem Metallkern aufgebracht. Bei einer Überlappung von ungefähr 50% der Breite des Streifens erhält man eine zweifache Beschichtung des Walzenkerns. Bei einer Dicke der Schicht von 0,7 mm beträgt somit die Dicke der aufgetragenen Haftmischung 1,4 mm, und zwar unabhängig von Länge und Durchmesser des Walzenkerns.The strips thus produced are applied in an overlapping spiral shape on the metal core. With an overlap of approximately 50% of the width of the strip, a double coating of the roll core is obtained. With a thickness of the layer of 0.7 mm, the thickness of the applied adhesive mixture is 1.4 mm, regardless of the length and diameter of the roll core.
Das Verfahren wird vorzugsweise durchgeführt auf einer Vorrichtung, die aus einer üblichen Beschichtungsanlage besteht und zusätzlich eine drehbare, seitlich verschiebbare Halterung für den rollenförmig aufgewickelten Streifen und eine mechanisch antreibbare ebenfalls seitlich verschiebbare Aufwickelvorrichtung für die abgezogene Schutzfolie aufweist.The method is preferably carried out on a device which consists of a conventional coating system and additionally has a rotatable, laterally displaceable holder for the roll-shaped strip and a mechanically drivable also laterally displaceable winding device for the removed protective film.
Vorzugsweise weist die Vorrichtung eine angetriebene Spindel auf, die zur gleichzeitigen Verschiebung der Halterung und der Abwickelvorrichtung führt.The device preferably has a driven spindle which leads to the simultaneous displacement of the holder and the unwinding device.
Vorzugsweise weist der Antrieb der Aufwickelvorrichtung eine Rutschkupplung auf, um damit eine gleichmäßige Wickelspannung zu gewährleisten unabhängig von der Menge der bereits aufgewickelten Schutzfolie.The drive of the winding device preferably has a slip clutch in order to ensure a uniform winding tension regardless of the amount of protective film already wound.
Diese zusätzlichen Teile der Beschichtungsanlage befinden sich vorzugsweise auf der Gegenseite der Zuführung für das anschließend aufzutragende elastomere Material. Der Walzenkern kann somit in der gleichen Beschichtungsanlage ohne Umrüstung zunächst von einer Seite mit der Haftmischung und anschließend von der anderen Seite mit dem elastomeren Material beschichtet werden, um dann anschließend in üblicher Weise vulkanisiert und fertiggestellt zu werden. Das erfindungsgemäße Verfahren und die erfindungsgemäße verwendbare Vorrichtung gewährleisten darüber hinaus, dass stets nur soviel Schutzfolie von der Haftmischung abgezogen wird, wie unverzüglich gebraucht wird. Hierdurch wird weiterhin verhindert, dass durch Staub oder sonstige Verschmutzungen die Funktionsfähigkeit der Haftmischung leidet.These additional parts of the coating system are preferably located on the opposite side of the feed for the elastomeric material to be subsequently applied. The roller core can thus be coated in the same coating system without retrofitting, firstly with the adhesive mixture from one side and then with the elastomeric material from the other side, in order to then be vulcanized and finished in the usual way. The method according to the invention and the device usable according to the invention also ensure that only as much protective film is removed from the adhesive mixture as is used immediately. This also prevents the functionality of the adhesive mixture from suffering from dust or other soiling.
Durch das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung ist es wesentlich leichter, von flüssigen Vorbeschichtungen zur Verwendung von vorgefertigten Haftmischungen mit Schutzfolie überzugehen und damit die oben beschriebenen Nachteile des Standes der Technik zu vermeiden. The inventive method and the inventive device make it much easier to switch from liquid precoatings to the use of prefabricated adhesive mixtures with a protective film and thus to avoid the disadvantages of the prior art described above.

Claims

Patentansprüche claims
1. Verfahren zum Aufbringen einer vorgefertigten, mit einer abziehbaren Schutzfolie versehenen Schicht einer Haftmischung auf einer anschließend mit elastomerem Material zu beschichtenden Walze mit einem Metallkern, dadurch gekennzeichnet, dass die mit der abziehbaren Schutzfolie versehene Schicht in Form von rollenförmig aufgewickelten längeren Streifen überlappend spiralförmig auf dem Metallkern aufgebracht wird, wobei gleichzeitig der entsprechende Teil der Schutzfolie abgezogen und aufgewickelt wird.1. A method for applying a prefabricated, provided with a peelable protective film layer of an adhesive mixture on a roller to be subsequently coated with an elastomeric material with a metal core, characterized in that the layer provided with the peelable protective film in the form of roll-shaped, longer strips overlapping spirally is applied to the metal core, at the same time the corresponding part of the protective film being pulled off and wound up.
2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass die Schicht der Haftmischung eine Dicke von 0,4 bis 1,2 mm, vorzugsweise 7 mm, aufweist, die Streifen eine Breite von 50 bis 200 mm und eine Länge von mehreren Metern aufweisen.2. The method according to claim 1, characterized in that the layer of the adhesive mixture has a thickness of 0.4 to 1.2 mm, preferably 7 mm, the strips have a width of 50 to 200 mm and a length of several meters.
3. Verfahren gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Überlappung ungefähr 50% der Breite des Streifens beträgt.3. The method according to claim 1 or 2, characterized in that the overlap is approximately 50% of the width of the strip.
4. Vorrichtung zum Aufbringen einer vorgefertigten, mit einer abziehbaren Schutzfolie versehenen Schicht einer Haftmischung auf einer anschließend mit elastomerem Material zu beschichtenden Walze mit einem Metallkern auf einer Beschichtungsanlage gemäß Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass die Beschichtungsanlage zusätzlich eine drehbare, seitlich verschiebbare Halterung für den rollenförmig aufgewickelten Streifen und eine mechanisch antreibbare, ebenfalls seitlich verschiebbare Aufwickelvorrichtung für die abgezogene Schutzfolie aufweist.4. Device for applying a prefabricated, provided with a removable protective film layer of an adhesive mixture on a roller to be subsequently coated with an elastomer material with a metal core on a coating system according to claims 1 to 3, characterized in that the coating system additionally has a rotatable, laterally displaceable holder for the roll-wound strip and a mechanically drivable, also laterally displaceable winding device for the removed protective film.
5. Vorrichtung gemäß Anspruch 4, dadurch gekennzeichnet, dass sie eine angetriebene Spindel aufweist zur gleichzeitigen seitlichen Verschiebung der Halterung und der Aufwickel Vorrichtung.5. The device according to claim 4, characterized in that it has a driven spindle for simultaneous lateral displacement of the holder and the winding device.
6. Vorrichtung gemäß Ansprüchen 4 oder 5, dadurch gekennzeichnet, dass der Antrieb der Aufwickelvorrichtung eine Rutschkupplung aufweist. 6. Device according to claims 4 or 5, characterized in that the drive of the winding device has a slip clutch.
PCT/EP2000/011876 1999-12-15 2000-11-28 Method and device for applying a prefabricated adhesive mixture to a roller WO2001044091A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU23602/01A AU2360201A (en) 1999-12-15 2000-11-28 Method for applying a prefabricated adhesive mixture to a roller and device for carrying out said method
EP00987310A EP1237806A2 (en) 1999-12-15 2000-11-28 Method for applying a prefabricated adhesive mixture to a roller and device for carrying out said method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999160345 DE19960345C1 (en) 1999-12-15 1999-12-15 Process for applying a pre-made adhesive mixture on a roller
DE19960345.6 1999-12-15

Publications (2)

Publication Number Publication Date
WO2001044091A2 true WO2001044091A2 (en) 2001-06-21
WO2001044091A3 WO2001044091A3 (en) 2002-03-28

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ID=7932665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/011876 WO2001044091A2 (en) 1999-12-15 2000-11-28 Method and device for applying a prefabricated adhesive mixture to a roller

Country Status (5)

Country Link
EP (1) EP1237806A2 (en)
AU (1) AU2360201A (en)
CZ (1) CZ20022073A3 (en)
DE (1) DE19960345C1 (en)
WO (1) WO2001044091A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146709A (en) * 1962-04-09 1964-09-01 West Essex Printing Plate Inc Method and apparatus for mounting printing sleeves
US4058427A (en) * 1976-12-29 1977-11-15 Midcon Pipeline Equipment Co. Pipe wrapping apparatus
CH663647A5 (en) * 1981-12-23 1987-12-31 Huber+Suhner Ag Couch jacket

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519046C3 (en) * 1975-04-25 1979-08-23 Mannesmann Ag, 4000 Duesseldorf Method of applying a layer of polyethylene to a steel pipe
DE4015864A1 (en) * 1990-05-17 1991-11-21 Berstorff Gmbh Masch Hermann METHOD AND DEVICE FOR PRODUCING ARMED RUBBER LINES AS A SEMI-PRODUCT FOR THE PRODUCTION OF TIRES

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146709A (en) * 1962-04-09 1964-09-01 West Essex Printing Plate Inc Method and apparatus for mounting printing sleeves
US4058427A (en) * 1976-12-29 1977-11-15 Midcon Pipeline Equipment Co. Pipe wrapping apparatus
CH663647A5 (en) * 1981-12-23 1987-12-31 Huber+Suhner Ag Couch jacket

Also Published As

Publication number Publication date
DE19960345C1 (en) 2001-10-11
AU2360201A (en) 2001-06-25
EP1237806A2 (en) 2002-09-11
CZ20022073A3 (en) 2004-03-17
WO2001044091A3 (en) 2002-03-28

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