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WO1998018877A1 - Gluing process for hard foam parts - Google Patents

Gluing process for hard foam parts Download PDF

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Publication number
WO1998018877A1
WO1998018877A1 PCT/EP1997/005877 EP9705877W WO9818877A1 WO 1998018877 A1 WO1998018877 A1 WO 1998018877A1 EP 9705877 W EP9705877 W EP 9705877W WO 9818877 A1 WO9818877 A1 WO 9818877A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
adhesive tape
hard foam
metallic
use according
Prior art date
Application number
PCT/EP1997/005877
Other languages
German (de)
French (fr)
Inventor
Jürgen-Albin Wille
Original Assignee
Beiersdorf Ag
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 Beiersdorf Ag filed Critical Beiersdorf Ag
Publication of WO1998018877A1 publication Critical patent/WO1998018877A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3644—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a ribbon, band or strip
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/28—Metal sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C08L23/22—Copolymers of isobutene; Butyl rubber; Homopolymers or copolymers of other iso-olefins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00—Presence of polyolefin

Definitions

  • the invention relates to the use of an adhesive tape for gluing in particular rigid foam parts.
  • Japanese laid-open publication JP 07 179 828 describes a single-sided adhesive tape which has a carrier to which a second layer is applied, which contains a metallic structure. A pressure-sensitive adhesive is in turn coated on the second layer. Due to the metallic structure, the second layer can be heated via magnetic induction, which reduces the adhesive strength of the pressure-sensitive adhesive.
  • an adhesive force is only generated in the adhesive coating by heating the metallic layer to a certain temperature. If this temperature is exceeded, the adhesive tape is removed.
  • the tape When used, for example when sealing plastic containers, the tape sticks to the body due to the pressure sensitive adhesive.
  • the adhesive tape can then only be detached from the substrate if the adhesive strength of the pressure-sensitive adhesive is reduced.
  • the heat generated by induction in the metallic structure of the second layer serves to detack the adhesive tape,
  • Two parts to be glued cannot be connected to one another with the disclosed adhesive tape in such a way that separation is only possible by destroying or damaging at least one of the two parts.
  • An adhesive tape which is disclosed in EP 0 237 657, has a comparable structure.
  • the adhesive tape is used to connect pieces of carpet, which are glued together by means of the adhesive tape, by induction to the Generation of sufficient adhesive power is required in the metallic layer.
  • Strapless adhesive tapes made from butyl rubber compositions which stick on both sides are also known.
  • priming is also cost-intensive.
  • the hard foam part can be pressed onto the surface with high pressure, while at the same time both the surface, the adhesive tape and the hard foam part are annealed.
  • the materials to be glued together mainly non-ferrous materials
  • the materials to be glued together can easily be damaged, for example deformed.
  • parts must be pressed with very high pressure in order to achieve sufficient adhesive strength.
  • this entails a high level of mechanical effort.
  • both methods are complex and therefore time-consuming, and in some cases also impractical.
  • the invention is based on the object of providing an adhesive tape with which the quick and secure bonding of, in particular, hard foam parts can be achieved.
  • the invention relates to the use of an adhesive tape for bonding hard foam parts in particular, very particularly those made of polyurethane or polyethylene, the adhesive tape consisting of a metallic intermediate carrier and a thermoplastic adhesive, preferably a self-adhesive butyl rubber adhesive.
  • the adhesive tape is also suitable for fastening open, rough and / or uneven plastic fabrics, webs or webs or similar known materials.
  • the adhesive tape preferably has a thickness of 0.2 to 4 mm, in particular of 1 to 2 mm.
  • the metallic intermediate carrier preferably has a thickness of 10 ⁇ m to 1000 ⁇ m, in particular of 40 ⁇ m to 60 ⁇ m, very particularly 50 ⁇ m.
  • the metallic intermediate carrier preferably consists of an aluminum foil, but in addition to this, the metallic intermediate carrier can consist of a metallic grid and / or a metallic fabric.
  • an adhesive tape can be used for gluing, in particular, rigid foam parts, which consists of a thermoplastic adhesive, a metal powder or metallic fibers being particularly homogeneously distributed in the thermoplastic adhesive.
  • the self-adhesive butyl rubber adhesive consists of a pre-crosslinked butyl rubber which is mixed with carbon black, talc, plasticizers and resin.
  • the self-adhesive butyl rubber adhesive advantageously has a shear strength greater than 5 cN / cm 2 at temperatures of 130 ° C. and undergoes crosslinking after heating to above 130 ° C.
  • the adhesive tape thus has a certain cohesiveness at temperatures below 130 ° C. After heating to temperatures above 130 ° C there is a crosslinking, which is responsible for the fact that the mentioned cohesiveness is exceeded after cooling to room temperature. At the same time, the viscosity of the butyl rubber adhesive is reduced during the heating, so that the porous or rough substrates to be bonded are properly wetted.
  • the method shown below has proven to be particularly advantageous for producing the adhesive tape according to the invention with an aluminum foil. Thereafter, the self-adhesive butyl rubber adhesive, which is covered with release paper, is first applied to both sides of an aluminum foil in a strip-like manner, with at least one strip per side, and then the coated aluminum foil is cut to lengths of the desired dimensions.
  • the adhesive is used optimally, there is no waste.
  • the method with which the hard foam parts are glued to a solid surface also lies within the inventive concept.
  • the process can be described as follows: a) First, adhesive tape sections are glued to the substrate. b) Then the preformed hard foam part is glued onto the adhesive tape sections, whereby the hard foam part is fixed in the desired position. c) During the same time causes an induction machine by induction heating of the metallic intermediate carrier in the adhesive tape on at least 130 ⁇ C to 200 ° C, is pressed, the hard foam part ending with a slight, manually generated pressure on the ground.
  • a hard foam part is to be glued to lacquered surfaces or similarly smooth surfaces, it is also sufficient if the metallic intermediate layer is fixed to the lacquer surface with a usual inexpensive fix, i.e. an adhesive tape that is adhesive on both sides. Due to the excellent, extremely smooth surface of the lacquer layer, the adhesive strength that can be achieved with the fix is sufficient.
  • the rigid foam part on the other hand, must in turn be fixed with a section of the preferred butyl rubber adhesive according to the induction process described.
  • the adhesive tape 3 which consists of three layers 31, 32, 33 composed, glued to the inner door panel 1, and divided into several sections.
  • the first layer 31 and the third layer 33 of the adhesive tape 3 are formed by a butyl rubber compound, in which a second, metallic layer 32 is embedded, consisting of an aluminum foil.
  • the metallic layer 32 is then heated by induction for a total of 2-5 seconds, to a temperature of 200 ° C.
  • the temperature in the surrounding layers 31, 33 made of butyl rubber increases at the same time. This rise in temperature ensures that, on the one hand, the viscosity of the butyl rubber composition becomes lower, that is to say it wets the existing unevenness more intensely, and, on the other hand, an increase in the adhesive force in the adhesive composition.
  • the hard foam part 2 is pressed onto them with a slight manual pressure.
  • FIG. 2 shows the process in the view of the hard foam part 2 (shown here as “transparent”).
  • the two, here square-shaped, adhesive sections 3 which are used to glue the hard foam part 2 onto the inner door panel 1.
  • the adhesive tape produced according to the particularly advantageously described manufacturing process is used for bonding hard foam parts.
  • two strips 31 and 33 of the butyl rubber adhesive are each applied by lamination above and below an aluminum foil 32, which is used as a metallic intermediate carrier, and then the aluminum foil 32, which is then coated on both sides, is cut to length.
  • the section 3 thus produced in the desired length is pressed onto the inner door panel 1. Due to the low self-adhesion, it sticks to it. Only then is the rigid foam part 2 placed on the section 3.
  • the aluminum foil 32 heats up by induction. This heat is passed on to the strips of butyl rubber adhesive 31, 33. The slight manual pressure ensures that the porous or rough surfaces of the hard foam part 2 or the door interior trim 1 are properly wetted.
  • FIG. 4 again shows the type of gluing according to FIG. 3 in view of the rigid foam part 2 (also shown here as “transparent”).

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

An adhesive strip made of a thermoplastic adhesive mass applied on an intermediate metallic support is used for gluing parts, in particular hard foam parts.

Description

Beschreibung description
Verkleben von HartschaumteilenBonding hard foam parts
Die Erfindung betrifft die Verwendung eines Klebebandes zum Verkleben von insbesondere Hartschaumteilen.The invention relates to the use of an adhesive tape for gluing in particular rigid foam parts.
In der japanischen Offenlegungsschrift JP 07 179 828 ist ein einseitig klebendes Klebeband beschrieben, das einen Träger aufweist, auf den eine zweite Schicht aufgebracht ist, die eine metallische Struktur enthält. Auf die zweite Schicht ist wiederum ein druckempfindlicher Kleber beschichtet. Die zweite Schicht läßt sich aufgrund der metallischen Struktur über magnetische Induktion erwärmen, was die Klebkraft des druckempfindlichen Klebers herabsetzt. In einer alternativen Ausführung des Klebebands wird erst durch die Erwärmung der metallischen Schicht auf eine gewisse Temperatur eine Klebkraft in der Klebebeschichtung erzeugt. Bei Überschreiten dieser Temperatur kommt es zum Entkleben des Klebebands.Japanese laid-open publication JP 07 179 828 describes a single-sided adhesive tape which has a carrier to which a second layer is applied, which contains a metallic structure. A pressure-sensitive adhesive is in turn coated on the second layer. Due to the metallic structure, the second layer can be heated via magnetic induction, which reduces the adhesive strength of the pressure-sensitive adhesive. In an alternative embodiment of the adhesive tape, an adhesive force is only generated in the adhesive coating by heating the metallic layer to a certain temperature. If this temperature is exceeded, the adhesive tape is removed.
Bei der Verwendung, zum Beispiel beim Abdichten von Plastikbehältern, klebt das Klebeband auf dem Körper aufgrund der druckempfindlichen Klebers. Eine Ablösung des Klebebands vom Untergrund ist anschließend nur möglich, wenn die Klebkraft des druckempfindlichen Klebers reduziert wird. Hierbei dient die durch Induktion in der metallischen Struktur der zweiten Schicht erzeugte Wärme zur Entklebung des Klebebands,When used, for example when sealing plastic containers, the tape sticks to the body due to the pressure sensitive adhesive. The adhesive tape can then only be detached from the substrate if the adhesive strength of the pressure-sensitive adhesive is reduced. The heat generated by induction in the metallic structure of the second layer serves to detack the adhesive tape,
Zwei zu verklebende Teile lassen sich mit dem offenbarten Klebeband nicht so miteinander verbinden, daß eine Trennung nur unter Zerstörung oder Beschädigung von zumindest einem der beiden Teile möglich ist.Two parts to be glued cannot be connected to one another with the disclosed adhesive tape in such a way that separation is only possible by destroying or damaging at least one of the two parts.
Einen vergleichbaren Aufbau weist ein Klebeband auf, das in EP 0 237 657 offenbart wird. Das Klebeband wird zum Verbinden von Teppichstücken verwendet, wobei diese mittels des Klebebands miteinander verklebt werden, indem per Induktion die zur Erzeugung einer ausreichenden Klebkraft notwendige Wärme in der metallischen Schicht hervorgerufen wird.An adhesive tape, which is disclosed in EP 0 237 657, has a comparable structure. The adhesive tape is used to connect pieces of carpet, which are glued together by means of the adhesive tape, by induction to the Generation of sufficient adhesive power is required in the metallic layer.
Bekannt sind weiterhin trägerlose Klebebänder aus Butylkautschukmassen, die beidsei- tig kleben. Um mit diesen Kunststoffteile aus Hartschaum sicher auf einem Untergrund zu verankern, ist es bisher notwendig, die zu verklebenden Oberflächen zu primern, um eine ausreichende Klebkraft zu erzielen. Eine Primerung ist allerdings auch kostenintensiv.Strapless adhesive tapes made from butyl rubber compositions which stick on both sides are also known. In order to securely anchor them to a surface with these plastic parts made of rigid foam, it has hitherto been necessary to prime the surfaces to be bonded in order to achieve sufficient adhesive strength. However, priming is also cost-intensive.
Alternativ kann das Hartschaumteil mit hohem Druck auf den Untergrund gepreßt werden, während gleichzeitig sowohl Untergrund, Klebeband als auch Hartschaumteil getempert werden. Bei den dafür benötigten Temperaturen von mehr als 130 °C können die miteinander zu verklebenden Werkstoffe (hauptsächlich Nichteisen-Werkstoffe) leicht beschädigt werden, zum Beispiel verformt. Werden geringere Temperaturen angewendet, müssen Teile mit sehr hohem Druck verpreßt werden, um ausreichende Klebkräfte zu erzielen. Dies zieht aber einen hohen maschinellen Aufwand nach sich. Beide Verfahren sind aber aufwendig und damit zeitintensiv, teilweise auch nicht praktikabel.Alternatively, the hard foam part can be pressed onto the surface with high pressure, while at the same time both the surface, the adhesive tape and the hard foam part are annealed. At the required temperatures of more than 130 ° C, the materials to be glued together (mainly non-ferrous materials) can easily be damaged, for example deformed. If lower temperatures are used, parts must be pressed with very high pressure in order to achieve sufficient adhesive strength. However, this entails a high level of mechanical effort. However, both methods are complex and therefore time-consuming, and in some cases also impractical.
Der Erfindung liegt nunmehr die Aufgabe zugrunde, ein Klebeband zur Verfügung zu stellen, mit dem die schnelle und sichere Verklebung von insbesondere Hartschaumteilen erzielt werden kann.The invention is based on the object of providing an adhesive tape with which the quick and secure bonding of, in particular, hard foam parts can be achieved.
Gelöst wird diese Aufgabe durch die Verwendung eines Klebebands, wie es im Anspruch 1 dargestellt ist. In den Unteransprüchen sind vorteilhafte Weiterbildungen des Klebebands aufgezeigt. Des weiteren umfaßt der Erfindungsgedanke eine alternative Ausführungsform des Klebebands.This object is achieved by using an adhesive tape as shown in claim 1. Advantageous developments of the adhesive tape are shown in the subclaims. Furthermore, the inventive concept encompasses an alternative embodiment of the adhesive tape.
Demgemäß betrifft die Erfindung die Verwendung eines Klebebandes zur Verklebung von insbesondere Hartschaumteilen, ganz besonders solchen aus Polyurethan oder Polyethylen, wobei das Klebeband aus einem metallischen Zwischenträger und einer thermoplastischen Klebmasse besteht, vorzugsweise einer selbstklebenden Butyl- kautschukklebemasse. Das Klebeband eignet sich neben der Verklebung von den üblicherweise porösen Hartschaumteilen auch zur Befestigung von offenen, rauhen und/oder unebenen Kunst- stoffgeweben, -gelegen oder -vliesen oder ähnlichen bekannten Werkstoffen.Accordingly, the invention relates to the use of an adhesive tape for bonding hard foam parts in particular, very particularly those made of polyurethane or polyethylene, the adhesive tape consisting of a metallic intermediate carrier and a thermoplastic adhesive, preferably a self-adhesive butyl rubber adhesive. In addition to the bonding of the usually porous rigid foam parts, the adhesive tape is also suitable for fastening open, rough and / or uneven plastic fabrics, webs or webs or similar known materials.
Das Klebeband weist vorzugsweise eine Dicke von 0,2 bis 4 mm auf, insbesondere von 1 bis 2 mm.The adhesive tape preferably has a thickness of 0.2 to 4 mm, in particular of 1 to 2 mm.
Der metallische Zwischenträger weist vorzugsweise eine Dicke von 10 μm bis 1000 μm auf, insbesondere von 40 μm bis 60 μm, ganz besonders 50 μm.The metallic intermediate carrier preferably has a thickness of 10 μm to 1000 μm, in particular of 40 μm to 60 μm, very particularly 50 μm.
Vorzugsweise besteht der metallische Zwischenträger aus einer Aluminiumfolie, aber neben dieser kann der metallische Zwischenträger aus einem metallischen Gitter und/oder einem metallischen Gewebe bestehen.The metallic intermediate carrier preferably consists of an aluminum foil, but in addition to this, the metallic intermediate carrier can consist of a metallic grid and / or a metallic fabric.
Schließlich kann ein Klebeband zum Verkleben von insbesondere Hartschaumteilen, Verwendung finden, das aus einer thermoplastischen Klebmasse besteht, wobei in der thermoplastischen Klebmasse ein Metallpulver oder metallische Fasern insbesondere homogen verteilt sind.Finally, an adhesive tape can be used for gluing, in particular, rigid foam parts, which consists of a thermoplastic adhesive, a metal powder or metallic fibers being particularly homogeneously distributed in the thermoplastic adhesive.
In einer bevorzugten Ausführungsform des Erfindungsgegenstands besteht die selbstklebende Butylkautschukklebemasse aus einem vorvernetzten Butylkautschuk, der mit Ruß, Talkum, Weichmachern und Harz abgemischt ist.In a preferred embodiment of the subject matter of the invention, the self-adhesive butyl rubber adhesive consists of a pre-crosslinked butyl rubber which is mixed with carbon black, talc, plasticizers and resin.
Vorteilhafterweise weist die selbstklebende Butylkautschukklebemasse bei Temperaturen von 130 °C eine Scherfestigkeit größer 5 cN/cm2 auf und erfährt nach Erwärmen auf über 130 °C eine Vernetzung.The self-adhesive butyl rubber adhesive advantageously has a shear strength greater than 5 cN / cm 2 at temperatures of 130 ° C. and undergoes crosslinking after heating to above 130 ° C.
Das Klebeband verfügt somit bei Temperaturen unter 130 °C über eine gewisse Köha- sivrtät, nach dem Erwärmen auf Temperaturen über 130 °C ergibt sich eine Vernetzung, die dafür verantwortlich ist, daß nach Erkalten auf Raumtemperatur die genannte Kohä- sivität noch überschritten wird. Gleichzeitig findet während der Erwärmung eine Verringerung der Viskosität der Butylkautschukklebemasse statt, so daß die zu verklebenden porösen oder rauhen Untergründe einwandfrei benetzt werden.The adhesive tape thus has a certain cohesiveness at temperatures below 130 ° C. After heating to temperatures above 130 ° C there is a crosslinking, which is responsible for the fact that the mentioned cohesiveness is exceeded after cooling to room temperature. At the same time, the viscosity of the butyl rubber adhesive is reduced during the heating, so that the porous or rough substrates to be bonded are properly wetted.
Als besonders vorteilhaft zur Herstellung des erfindungsgemäßen Klebebands mit einer Aluminiumfolie hat sich das im folgenden dargestellte Verfahren erwiesen. Danach wird zunächst die selbstklebende, mit Trennpapier eingedeckte Butylkautschukklebemasse streifenförmig beidseitig auf eine Aluminiumfolie aufgebracht, und zwar mindestens ein Streifen pro Seite, anschließend wird die beschichtete Aluminiumfolie in Abschnitte gewünschter Abmessung abgelängt. Die Klebemasse wird optimal ausgenutzt, es entsteht keinerlei Abfall.The method shown below has proven to be particularly advantageous for producing the adhesive tape according to the invention with an aluminum foil. Thereafter, the self-adhesive butyl rubber adhesive, which is covered with release paper, is first applied to both sides of an aluminum foil in a strip-like manner, with at least one strip per side, and then the coated aluminum foil is cut to lengths of the desired dimensions. The adhesive is used optimally, there is no waste.
Weiterhin liegt auch innerhalb des Erfindungsgedankens das Verfahren, mit dem die Hartschaumteile auf einem festen Untergrund verklebt werden. Das Verfahren läßt sich wie folgt beschreiben: a) Zunächst werden Klebebandabschnitte auf den Untergrund geklebt. b) Daran anschließend wird das vorgeformte Hartschaumteil auf die Klebebandabschnitte geklebt, wodurch eine Fixierung des Hartschaumteils in der gewünschten Lage erzielt wird. c) Während gleichzeitig ein Induktionsapparat durch Induktion eine Erwärmung des metallischen Zwischenträgers im Klebeband auf zumindest 130 βC bis 200 °C bewirkt, wird das Hartschaumteil abschließend mit leichtem, manuell erzeugtem Druck auf den Untergrund gepreßt.Furthermore, the method with which the hard foam parts are glued to a solid surface also lies within the inventive concept. The process can be described as follows: a) First, adhesive tape sections are glued to the substrate. b) Then the preformed hard foam part is glued onto the adhesive tape sections, whereby the hard foam part is fixed in the desired position. c) During the same time causes an induction machine by induction heating of the metallic intermediate carrier in the adhesive tape on at least 130 β C to 200 ° C, is pressed, the hard foam part ending with a slight, manually generated pressure on the ground.
Soll ein Hartschaumteil auf Lackoberflächen oder vergleichbar glatten Oberflächen verklebt werden, reicht es auch aus, wenn die metallische Zwischenschicht mit einem üblichen preisgünstigen Fix, also einem beidseitig klebenden Klebeband, auf der Lackoberfläche fixiert wird. Aufgrund der hervorragenden, äußerst glatten Oberfläche der Lackschicht ist die mit dem Fix zu erzielende Klebkraft ausreichend. Das Hartschaumteil hingegen muß wiederum mit einem Abschnitt aus der bevorzugten Butylkautschukklebemasse nach dem dargelegten Induktionsverfahren fixiert werden.If a hard foam part is to be glued to lacquered surfaces or similarly smooth surfaces, it is also sufficient if the metallic intermediate layer is fixed to the lacquer surface with a usual inexpensive fix, i.e. an adhesive tape that is adhesive on both sides. Due to the excellent, extremely smooth surface of the lacquer layer, the adhesive strength that can be achieved with the fix is sufficient. The rigid foam part, on the other hand, must in turn be fixed with a section of the preferred butyl rubber adhesive according to the induction process described.
Im folgenden soll anhand von vier Figuren das Verfahren zum Verkleben von Hartschaumteilen näher erläutert werden, ohne in irgendeiner Form einschränkend wirken zu sollen.In the following, the method for gluing hard foam parts will be explained in more detail with reference to four figures, without being intended to have any restrictive effect.
Wie in Figur 1 gezeigt, wird ein Hartschaumteil 2 aus Polyurethan, das als Seitenauf- prallschutz dient, auf die Türinnenverkleidung 1 (aus Holzschliff bestehend) eines Pkws verklebt. Dazu wird zunächst das Klebeband 3, das sich aus drei Schichten 31 , 32, 33 zusammensetzt, auf die Türinnenverkleidung 1 geklebt, und zwar verteilt in mehrere Abschnitte.As shown in FIG. 1, a rigid foam part 2 made of polyurethane, which serves as a side impact protection, is glued to the door lining 1 (made of ground wood) of a car. For this purpose, the adhesive tape 3, which consists of three layers 31, 32, 33 composed, glued to the inner door panel 1, and divided into several sections.
Die erste Schicht 31 und die dritte Schicht 33 des Klebebandes 3 werden von einer Butylkautschukmasse gebildet, in die eine zweite, metallische Schicht 32 eingelagert ist, bestehend aus einer Aluminiumfolie.The first layer 31 and the third layer 33 of the adhesive tape 3 are formed by a butyl rubber compound, in which a second, metallic layer 32 is embedded, consisting of an aluminum foil.
Mit Hilfe eines Induktionsapparates 4 (Typ TIG 1 ,5/300 der Firma Hüttinger Elektronik GmbH) wird anschließend durch Induktion die metallische Schicht 32 insgesamt für 2 - 5 Sekunden erwärmt, und zwar auf eine Temperatur von 200 °C.With the help of an induction apparatus 4 (type TIG 1, 5/300 from Hüttinger Elektronik GmbH), the metallic layer 32 is then heated by induction for a total of 2-5 seconds, to a temperature of 200 ° C.
Durch die Erwärmung der metallischen Schicht 32 steigt gleichzeitig die Temperatur in den umgebenden Schichten 31 , 33 aus Butylkautschuk. Dieser Temperaturanstieg sorgt dafür, daß zum einen die Viskosität der Butylkautschukmasse geringer wird, diese also die vorhandenen Unebenheiten verstärkt benetzt, und zum anderen für einen Anstieg der Klebkraft in der Klebmasse.By heating the metallic layer 32, the temperature in the surrounding layers 31, 33 made of butyl rubber increases at the same time. This rise in temperature ensures that, on the one hand, the viscosity of the butyl rubber composition becomes lower, that is to say it wets the existing unevenness more intensely, and, on the other hand, an increase in the adhesive force in the adhesive composition.
Bei Hartschaumteilen 2 und Türinnenverkleidungen 1 oder ähnlichem mit hohem Feuchtigkeitsgehalt und/oder niedriger Temperatur (zum Beispiel wie er nach langem LKW- Transport in den kalten Jahreszeiten auftreten kann), wird zwangsläufig eine ausreichende Temperierung erzielt.With hard foam parts 2 and inner door panels 1 or similar with a high moisture content and / or low temperature (for example, as can occur after a long truck transport in the cold seasons), sufficient temperature control is inevitable.
Während des Erwärmens der Klebebandabschnitte 3 oder kurz danach wird mit einem leichten manuellen Druck das Hartschaumteil 2 auf diese gepreßt.During the heating of the adhesive tape sections 3 or shortly thereafter, the hard foam part 2 is pressed onto them with a slight manual pressure.
Auf diese Weise wird eine sichere Verklebung des Hartschaumteils 2 in der Türinnenverkleidung 1 erzielt, die auch Temperaturen bis zu 120 °C über einen Zeitraum von zwei Stunden standhält, wie sie von der Kfz-Industrie gefordert wird.In this way, a secure bonding of the hard foam part 2 in the door interior trim 1 is achieved, which also withstands temperatures up to 120 ° C. over a period of two hours, as required by the motor vehicle industry.
Die Figur 2 zeigt den Vorgang in der Sicht auf das (hier „durchsichtig" dargestellte) Hartschaumteil 2. Unterhalb des Hartschaumteils 2 befinden sich die beiden, hier quadratisch geformten Klebeabschnitte 3, die zur Verklebung des Hartschaumteils 2 auf der Türinnenverkleidung 1 dienen. ln der Figur 3 wird das nach dem besonders vorteilhaft geschilderte Herstellungsverfahren gefertigte Klebeband zur Verklebung von Hartschaumteilen verwendet. Dazu werden zunächst ober- und unterhalb einer Aluminiumfolie 32, die als metallischer Zwischenträger eingesetzt wird, jeweils zwei Streifen 31 beziehungsweise 33 der Butylkautschukklebemasse durch Kaschierung aufgetragen, anschließend die dann beidseitig beschichtete Aluminiumfolie 32 abgelängt.FIG. 2 shows the process in the view of the hard foam part 2 (shown here as “transparent”). Below the hard foam part 2 are the two, here square-shaped, adhesive sections 3, which are used to glue the hard foam part 2 onto the inner door panel 1. In FIG. 3, the adhesive tape produced according to the particularly advantageously described manufacturing process is used for bonding hard foam parts. For this purpose, two strips 31 and 33 of the butyl rubber adhesive are each applied by lamination above and below an aluminum foil 32, which is used as a metallic intermediate carrier, and then the aluminum foil 32, which is then coated on both sides, is cut to length.
Der somit in der gewünschten Länge hergestellte Abschnitt 3 wird auf die Türinnenver- kieidung 1 gedrückt. Aufgrund der geringen Eigenhaftung bleibt er an dieser kleben. Erst dann wird das Hartschaumteil 2 auf den Abschnitt 3 plaziert. Unter Einsatz des Induktionsapparates 4 erwärmt sich die Aluminiumfolie 32 durch Induktion. Diese Wärme wird an die Streifen aus Butylkautschukklebmasse 31, 33 weitergegeben. Der leichte manuelle Druck sorgt für die einwandfreie Benetzung der porösen oder rauhen Oberflächen des Hartschaumteils 2 beziehungsweise der Türinnenverkleidung 1.The section 3 thus produced in the desired length is pressed onto the inner door panel 1. Due to the low self-adhesion, it sticks to it. Only then is the rigid foam part 2 placed on the section 3. Using the induction apparatus 4, the aluminum foil 32 heats up by induction. This heat is passed on to the strips of butyl rubber adhesive 31, 33. The slight manual pressure ensures that the porous or rough surfaces of the hard foam part 2 or the door interior trim 1 are properly wetted.
In der Figur 4 ist wiederum die Art der Verklebung gemäß Figur 3 in Sicht auf das (hier ebenfalls „durchsichtig" dargestellte) Hartschaumteil 2 gezeigt. FIG. 4 again shows the type of gluing according to FIG. 3 in view of the rigid foam part 2 (also shown here as “transparent”).

Claims

Patentansprüche claims
1. Verwendung eines Klebebandes zum Verkleben von insbesondere Hartschaumteilen, wobei das Klebeband aus einer thermoplastischen Klebemasse besteht, die einen metallischen Zwischenträger aufweist.1. Use of an adhesive tape for bonding hard foam parts in particular, the adhesive tape consisting of a thermoplastic adhesive which has a metallic intermediate carrier.
2. Verwendung nach Anspruch 1 , dadurch gekennzeichnet, daß das Klebeband eine Dicke von 0,2 bis 4 mm aufweist, insbesondere von 1 bis 2 mm.2. Use according to claim 1, characterized in that the adhesive tape has a thickness of 0.2 to 4 mm, in particular of 1 to 2 mm.
3. Verwendung nach Anspruch 1 , dadurch gekennzeichnet, daß der metallische Zwischenträger eine Dicke von 10 μm bis 1000 μm aufweist, insbesondere von 40 μm bis 60 μm.3. Use according to claim 1, characterized in that the metallic intermediate carrier has a thickness of 10 microns to 1000 microns, in particular from 40 microns to 60 microns.
4. Verwendung nach Anspruch 1 , dadurch gekennzeichnet, daß der metallische Zwischenträger aus einer Aluminiumfolie besteht.4. Use according to claim 1, characterized in that the metallic intermediate carrier consists of an aluminum foil.
5. Verwendung nach Anspruch 1 , dadurch gekennzeichnet, daß der metallische Zwischenträger besteht aus einem metallischen Gitter und/oder einem metallischen Gewebe.5. Use according to claim 1, characterized in that the metallic intermediate carrier consists of a metallic grid and / or a metallic fabric.
6. Verwendung eines Klebebandes zum Verkleben von insbesondere Hartschaumteilen, bestehend aus einer thermoplastischen Klebmasse, wobei in der thermoplastischen Klebmasse ein Metallpulver oder metallische Fasern insbesondere homogen verteilt sind.6. Use of an adhesive tape for gluing in particular hard foam parts, consisting of a thermoplastic adhesive, wherein a metal powder or metallic fibers are in particular homogeneously distributed in the thermoplastic adhesive.
7. Verwendung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als thermoplastische Klebmasse eine selbstklebende Butylkautschukklebemasse aus einem vorvernetzten Butylkautschuk eingesetzt wird, der mit Ruß, Talkum, Weichmachern und Harz abgemischt ist.7. Use according to one or more of the preceding claims, characterized in that a self-adhesive butyl rubber adhesive composed of a pre-crosslinked butyl rubber which is mixed with carbon black, talc, plasticizers and resin is used as the thermoplastic adhesive.
8. Verwendung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die selbstklebende Butylkautschukklebemasse bei Temperaturen von 130 °C eine Scherfestigkeit größer 5 cN/cm2 aufweist und nach Erwärmen auf über 130 °C eine Vernetzung erfährt.8. Use according to one or more of the preceding claims, characterized in that the self-adhesive butyl rubber adhesive has a shear strength greater than 5 cN / cm 2 at temperatures of 130 ° C and after heating cross-linked at over 130 ° C.
9. Verfahren zur Herstellung eines Klebebands gemäß Anspruch 4, dadurch gekennzeichnet, daß die selbstklebende Butylkautschukklebemasse streifenförmig beidseitig auf eine Aluminiumfolie aufgebracht, und zwar mindestens ein Streifen pro Seite, die beschichtete Aluminiumfolie in Abschnitte gewünschter Abmessung abgelängt wird.9. A method for producing an adhesive tape according to claim 4, characterized in that the self-adhesive butyl rubber adhesive is applied in strips to both sides of an aluminum foil, namely at least one strip per side, the coated aluminum foil is cut to lengths of the desired dimensions.
10.Verwendung nach Anspruch 1 , wobei a) Klebebandabschnitte auf einen festen Untergrund geklebt werden, b) das vorgeformte Hartschaumteil auf die Klebebandabschnitte aufgebracht wird, c) ein Induktionsapparat durch Induktion eine Erwärmung des metallischen Zwischenträgers im Klebeband auf zumindest 130 °C bis 200 °C bewirkt, und d) das Hartschaumteil mit leichtem Druck auf den Untergrund gepreßt wird. 10.Use according to claim 1, wherein a) adhesive tape sections are glued to a solid surface, b) the preformed hard foam part is applied to the adhesive tape sections, c) an induction apparatus by induction heating the metallic intermediate carrier in the adhesive tape to at least 130 ° C to 200 ° C causes, and d) the hard foam part is pressed onto the surface with slight pressure.
PCT/EP1997/005877 1996-10-29 1997-10-24 Gluing process for hard foam parts WO1998018877A1 (en)

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DE19644827A DE19644827C1 (en) 1996-10-29 1996-10-29 Use of an adhesive tape for gluing hard foam parts
DE19644827.1 1996-10-29

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000027941A1 (en) * 1998-11-09 2000-05-18 3M Innovative Properties Company Bendable article containing a heating element, assemblies made therewith, and a method of using said article
WO2001083184A3 (en) * 2000-04-28 2002-06-06 Mexicor Llc Fastening device
US6849837B2 (en) 1999-11-03 2005-02-01 Nexicor Llc Method of adhesive bonding by induction heating
WO2011085873A1 (en) * 2009-12-21 2011-07-21 Tesa Se Inductively heatable adhesive tape having differential detachment properties
DE102013205712A1 (en) * 2013-03-28 2014-10-02 Hilti Aktiengesellschaft adhesion device
USD719596S1 (en) 2012-12-20 2014-12-16 Sfs Intec Holding Ag Induction apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237657A1 (en) * 1986-03-13 1987-09-23 Tsugo Nakano A method of seaming for bonding carpet strip and tape therefor
US4841706A (en) * 1987-11-18 1989-06-27 Carlisle Corporation Non-penetrating fastener for affixing elastomeric sheeting to a roof
JPH04261692A (en) * 1990-12-31 1992-09-17 Tokyo Seat Kk Method for fixedly bonding seat skin to cushion pad
JPH07179828A (en) * 1993-12-24 1995-07-18 Nichiban Co Ltd Adhesive sheet and peeling method for adhesive sheet
US5534097A (en) * 1994-09-02 1996-07-09 Lear Corporation Method of bonding a seat trim cover to a foam cushion utilizing magnetic induction bonding

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2117561A1 (en) * 1971-04-10 1972-10-26 Correcta-Werke GmbH, 3590 Bad WiIdungen Adhesive film for foam-plastic foundry patterns permitting - initial movement of bonded parts and easy extraction of broken patter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237657A1 (en) * 1986-03-13 1987-09-23 Tsugo Nakano A method of seaming for bonding carpet strip and tape therefor
US4841706A (en) * 1987-11-18 1989-06-27 Carlisle Corporation Non-penetrating fastener for affixing elastomeric sheeting to a roof
JPH04261692A (en) * 1990-12-31 1992-09-17 Tokyo Seat Kk Method for fixedly bonding seat skin to cushion pad
JPH07179828A (en) * 1993-12-24 1995-07-18 Nichiban Co Ltd Adhesive sheet and peeling method for adhesive sheet
US5534097A (en) * 1994-09-02 1996-07-09 Lear Corporation Method of bonding a seat trim cover to a foam cushion utilizing magnetic induction bonding

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9537, Derwent World Patents Index; Class A83, AN 95-281150, XP002059226 *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 043 (M - 1360) 27 January 1993 (1993-01-27) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000027941A1 (en) * 1998-11-09 2000-05-18 3M Innovative Properties Company Bendable article containing a heating element, assemblies made therewith, and a method of using said article
US6849837B2 (en) 1999-11-03 2005-02-01 Nexicor Llc Method of adhesive bonding by induction heating
WO2001083184A3 (en) * 2000-04-28 2002-06-06 Mexicor Llc Fastening device
US7141768B2 (en) 2000-04-28 2006-11-28 Nexicor, Llc Fastening device
WO2011085873A1 (en) * 2009-12-21 2011-07-21 Tesa Se Inductively heatable adhesive tape having differential detachment properties
USD719596S1 (en) 2012-12-20 2014-12-16 Sfs Intec Holding Ag Induction apparatus
DE102013205712A1 (en) * 2013-03-28 2014-10-02 Hilti Aktiengesellschaft adhesion device

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