EP0688382B1 - Joint sealing strip - Google Patents

Joint sealing strip Download PDF

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Publication number
EP0688382B1
EP0688382B1 EP94910379A EP94910379A EP0688382B1 EP 0688382 B1 EP0688382 B1 EP 0688382B1 EP 94910379 A EP94910379 A EP 94910379A EP 94910379 A EP94910379 A EP 94910379A EP 0688382 B1 EP0688382 B1 EP 0688382B1
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EP
European Patent Office
Prior art keywords
joint sealing
sealing strip
impregnation
longitudinal edge
joint
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
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EP94910379A
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German (de)
French (fr)
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EP0688382A1 (en
Inventor
Fritz Irrgeher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illbruck GmbH
Illbruck Building Systems GmbH
Tremco CPG Germany GmbH
RPM Ireland IP Ltd
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Illbruck GmbH
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6812—Compressable seals of solid form
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249961—With gradual property change within a component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249971—Preformed hollow element-containing
    • Y10T428/249972—Resin or rubber element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
    • Y10T428/249999—Differentially filled foam, filled plural layers, or filled layer with coat of filling material

Definitions

  • the invention relates to a joint sealing tape made of soft Foam according to the characteristics of the generic term of claims 1 and 2.
  • a longitudinal edge area, or both longitudinal edge areas, additionally reinforced or, as preferred, with a second impregnating agent, as described in more detail below is to be impregnated.
  • a second impregnating agent as described in more detail below is to be impregnated.
  • the foam of the joint sealing tape in this area too delayed to the middle area of the joint sealing tape, which in itself is a delayed reset is impregnated, back.
  • such Delays in the range of 8, 16 and more Hours lie (this is also due to environmental conditions such as temperature, humidity, etc.).
  • Impregnation agent only in one (or both) longitudinal areas is made.
  • the joint sealing tape is not impregnated in this version is there (in a middle one Area) after a release of the default of the foam of the joint sealing tape immediately spontaneously.
  • the width of the joint sealing tape also results in this version the geometric shape of a Rising central longitudinal axis of the joint sealing tape Profiles.
  • the foam of the joint sealing tape uniformly chosen the same.
  • the impregnated longitudinal edge area the joint sealing tape is from the same Foam formed like the non-impregnated area of the joint sealing tape.
  • the joint sealing tape is also made entirely of an integral foam strip educated. Furthermore, it is also preferred that a initial compression only about a third to Half of the initial thickness of the foam material is.
  • the impregnation on both Edge longitudinal areas of the joint sealing tape made is and that after release of the provision the joint sealing tape has a medium curvature in profile.
  • This geometric characterization also says something about the foam used. This must be correspondingly soft or flexible, so that the sets mentioned profiling.
  • Impregnation on both longitudinal edge areas about made the same width. In total about over half the width of the joint sealing tape. At Relatively wide joint sealing tapes can be the width of such an impregnated longitudinal edge area also be relatively smaller.
  • the impregnation agent itself is preferably used in a special form. So far it is already known, impregnation agent to use that have a certain paraffin content.
  • the impregnating agent practically pure paraffin base. Beyond that it is also preferred to use so-called poly waxes (polyethylene glycols). The consistency of these can be adjusted from ointment-like to hard wax-like. Hereby can accordingly on the delay of the provision being controlled.
  • the impregnating agent does certain modification elements continue, however, these fall in terms of their share in the The amount of the impregnating agent hardly weighs.
  • This special impregnating agent described last can regarding the first version described above the invention at the edge areas in a simple manner are "over-impregnated", so that it is as it were there is a double layer of impregnating agent there.
  • this is also advantageous in terms of a further closure of the pores (even if none complete closure is achieved), so that moisture can penetrate less easily (but a vapor permeability nevertheless still to the desired extent given is).
  • this also has the advantage that the joint sealing tapes impregnated in a conventional manner on the edge areas with the special Impregnation agents are provided, not the usual Exhibit stickiness. This also advantageously supports the installation options. This advantage naturally applies likewise for the described second version.
  • the impregnation with the special described Impregnation is also important when it not to one edge longitudinal area, or to both edge longitudinal areas, is limited.
  • This special impregnation agent makes it possible, for example described, preferred here foams for delayed To impregnate provision.
  • geometrical peculiarities also a design possible, in which an impregnation with the special impregnation agent over the entire surface, however only in the area of the central axis shallower depth.
  • a joint sealing tape 1 the a soft, porous foam that is made with impregnation leading to delayed provision is provided.
  • the impregnation is based on Made of poly wax, which is only a small, by volume non-significant proportion of modification substances contains.
  • a thickness d1 of the complete deferred joint sealing tape 1 (Fig. 2) only about two to three times the thickness d2 of Joint sealing tape 1 in the compressed state.
  • the joint sealing tape 1 is in accordance with the configuration 1 to 3 in the installed state, being a full provision of the impregnated Edge longitudinal areas 2, 3 has not yet taken place.
  • both Edge longitudinal areas 2, 3 is different, such that one arranged in the installed state to the outside of a building Edge longitudinal region 3 a water vapor diffusion permits to a greater extent than the impregnation of the im Installed state towards the interior of the building along the longitudinal edge area 2.
  • This Measure can also be carried out, however so that the impregnation of a (or both) edge longitudinal areas 2, 3 with different Intensity is carried out such that the intensity from outer surfaces 12 or 13 to a central area 6 of the joint sealing tape 1 decreases.
  • the foam comes in particular from polyurethane foam to use.
  • FIG. 7 shows the structure of the polyurethane foam used here clarifies.
  • the - from drawing technology For reasons easily shown schematically - Structure of the foam consists of a reticulated Basic framework in which larger or smaller openings having pores 14, 15, 16, etc. are present. Although the opening cross-sections of the pores are comparatively are shown large results in real, too due to the superposition of very many layers relative small pores, an essential unity of the Foam. E.g. can only by blowing on air flow can be achieved with great difficulty. This corresponds to the metrological value, as further already listed at the front, from approx. 40 to 50 l.qm.s.
  • the special impregnation agent used is so far advantageous as it has an extremely low surface tension having. It therefore penetrates simple Soak in the longitudinal edge areas. This can even meaning that a certain closed structure of the foam can be present, with a lower percentage of open Pores because this special impregnation agent is light penetrates into the foam.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Gasket Seals (AREA)
  • Building Environments (AREA)
  • Sealing Material Composition (AREA)
  • Cable Accessories (AREA)
  • Materials For Medical Uses (AREA)
  • Adhesive Tapes (AREA)

Abstract

PCT No. PCT/EP94/00675 Sec. 371 Date Sep. 11, 1995 Sec. 102(e) Date Sep. 11, 1995 PCT Filed Mar. 7, 1994 PCT Pub. No. WO94/20701 PCT Pub. Date Sep. 15, 1994A joint-sealing strip is made of soft foam material, with an impregnation leading to delayed recovery. In order to obtain a simple structure combined with an advantageous design especially with respect to technical handling, the impregnation varies over the width of the joint-sealing strip, namely in a marginal longitudinal area. A strengthened impregnation is made preferably extending over the total thickness in the marginal longitudinal area, in such a manner that upon release of the recovery, a profile rising toward a longitudinal center line of the joint-sealing strip is obtained.

Description

Die Erfindung betrifft ein Fugendichtungsband aus weichem Schaumstoff nach den Merkmalen des Oberbegriffes des Anspruches 1 bzw. 2.The invention relates to a joint sealing tape made of soft Foam according to the characteristics of the generic term of claims 1 and 2.

Derartige Fugendichtungsbänder sind im Stand der Technik bereits in verschiedenen Ausgestaltungen bekanntgeworden. Es wird zunächst bspw. auf das französische Patent 1 544 724 verwiesen. Weiter auf das deutsche Patent 1 000 946. Darüber hinaus sind auch diese Dichtungsbänder noch in verschiedenen weiteren Ausgestaltungen bekanntgeworden, wozu etwa auf die EP-A3 229 951 und die EP-A2 323 589 zu verweisen ist.Such joint sealing tapes are in the prior art have already become known in various configurations. First, for example, the French Patent 1,544,724. On to the German Patent 1 000 946. In addition, these are sealing tapes in various other configurations become known, for example on EP-A3 229 951 and EP-A2 323 589 is to be referred.

Um unterschiedliche Eigenschaften eines solchen Fugendichtungsbandes, jedoch über die Höhe des Fugendichtungsbandes, zu erreichen, ist es auch in der EP-A1 317 833, die die Merkmale des Oberbegriffes der Ansprüche 1 und 2 aufweist, bereits vorgeschlagen worden, verschiedene Schaumstoffe, nämlich einen Schaumstoff, der mit einem Imprägnierungsmittel tränkbar ist und einen Schaumstoff, der nicht mit einem Imprägnierungsmittel tränkbar ist, zu kombinieren.To different properties of such a joint sealing tape, however over the height of the joint sealing tape, to achieve it is also in EP-A1 317 833, which has the features of the preamble of claims 1 and 2, already proposed different foams, namely a foam with an impregnating agent is impregnable and a foam that is not impregnable with an impregnating agent combine.

Ausgehend von dem vorbezeichneten Stand der Technik wird eine Problemstellung hinsichtlich der Erfindung darin gesehen, ein Fugendichtungsband der bekannten Art so weiterzubilden, daß bei einfachem Aufbau sich eine insbesondere in handhabungstechnischer Hinsicht vorteilhafte Gestaltung ergibt.Based on the aforementioned state of the art becomes a problem with the invention seen in it a joint sealing tape of the known type to develop so that with a simple structure Particularly advantageous in terms of handling Design results.

Diese Problematik ist beim Gegenstand des Anspruches 1 bzw. des Anspruches 2 gelöst. Die Imprägnierung ist über eine Breite des Fugendichtungsbandes unterschiedlich, nämlich in einem Rand-Längsbereich und bevorzugt über die gesamte Dicke in diesem Rand-Längsbereich sich erstreckend, ist die Imprägnierung verstärkt vorgenommen. Dies derart, daß nach Freigabe der Rückstelllung sich ein zur Mittellängsachse des Fugendichtbandes hin ansteigendes Profil einstellt. Es wurde gefunden, daß eine derartige Imprägnierung des Fugendichtbandes zu einer vorteilhaften Geometrie des Fugendichtbandes kurz nach Aufhebung einer Komprimierung, etwa einem Abrollen von einer Wicklung, und vor dem Einbau führt. Diese Lehre hat zunächst Bedeutung im Zusammenhang mit einem herkömmlichen, aus offenzelligem Schaumstoff bestehenden und zur verzögerten Rückstellung imprägnierten Fugendichtungsband, wie es aus der eingangs genannten Literatur bekannt ist. Hier kann ein Rand-Längsbereich, oder auch beide Rand-Längsbereiche, zusätzlich verstärkt oder, wie bevorzugt, mit einem zweiten Imprägnierungsmittel, wie es weiter unten noch im einzelnen beschrieben ist, imprägniert sein. Durch diese zusätzliche, verstärkte oder besondere Imprägnierung stellt sich der Schaumstoff des Fugendichtungsbandes in diesem Bereich auch verzögert zu dem mittleren Bereich des Fugendichtungsbandes, der an sich schon zur verzögerten Rückstellung imprägniert ist, zurück. Grundsätzlich können derartige Verzögerungen durchaus im Bereich von 8, 16 und mehr Stunden liegen (dies ist auch von Umgebungsbedingungen wie Temperatur, Feuchtigkeit etc. abhängig). Weiter bevorzugt ist es, daß eine Imprägnierung, insbesondere mit dem nachstehen im einzelnen beschriebenen besonderen Imprägnierungsmittel, nur in einem (oder beiden) Rand-Längsbereichen vorgenommen ist. Dadurch, daß im übrigen das Fugendichtungsband bei dieser Version nicht imprägniert ist, stellt sich dort (also in einem mittleren Bereich) nach einer Freigabe der Rückstellung der Schaumstoff des Fugendichtungsbandes unmittelbar spontan zurück. Aus dieser unterschiedlichen Rückstellung über die Breite des Fugendichtungsbandes ergibt sich somit auch bei dieser Version die geometrische Gestalt eines zur Mittellängsachse des Fugendichtungsbandes ansteigenden Profils. Dabei ist der Schaumstoff des Fugendichtungsbandes einheitlich gleich gewählt. Der imprägnierte Rand-Längsbereich des Fugendichtungsbandes ist aus demselben Schaumstoff gebildet wie der nicht imprägnierte Bereich des Fugendichtungsbandes. Das Fugendichtungsband ist auch insgesamt aus einem integralen Schaumstoffstreifen gebildet. Des weiteren ist es auch bevorzugt, daß eine anfängliche Komprimierung nur etwa ein Drittel bis zur Hälfte der Ausgangsdicke des Schaumstoffmaterials beträgt. Dies ermöglicht es, auch Schaumstoff zu verwenden, der hinsichtlich der Porosität eine gewisse Mittelstellung zwischen dem bekannten offenporigen Schaumstoff und einem vollständigen bzw. annähernd vollständig geschlossenporigen Schaumstoff einnimmt. Die Fugendichtungsbänder der hier als bekannt vorausgesetzten Art sind bislang nur aus offenporigem Schaumstoff bekanntgeworden. Um die Imprägnierung durchgehend durchführen zu können, ist es sogar üblich, retikulierten offenporigen Schaumstoff zu verwenden, damit eine praktisch hundertprozentige Offenporigkeit vorliegt. Dagegen ist es im Rahmen der vorliegenden Erfindung bevorzugt, einen Schaumstoff zu verwenden, der zwar im wesentlichen offenporig ist, aber dessen Poren vergleichsweise kleinere Ein- und Austrittsquerschnitte gegenüber einem üblichen, für solche Fugendichtbänder verwendeten offenporigen Schaumstoff aufweisen. Hierbei ist die Art des Schaumstoffes aber weniger über die Qualifizierung "offenporig" oder "geschlossenporig" vorzunehmen als vielmehr über den Luftwiderstand zu charakterisieren. Während üblicherweise derartige Fugendichtungsbänder eingesetzter offenporiger Schaumstoff (auf welchen sich die Erfindung in einer ersten Variante, wie weiter oben im einzelnen erläutert, gleichfalls bezieht) einen Luftwiderstand von ca. 250 bis 260 l.qm.s (gemessen nach DIN 53887) besitzt, weist bei der jetzt in Rede stehenden Version eingesetzter Schaumstoff einen solchen Luftwiderstand von 30 bis 60, vorzugsweise 40 bis 50 l.qm.s. auf (gemessen mit einem sogenannten Frank-Gerät). Der Rand-Längsbereich, der (lediglich) die Imprägnierung aufweist, entspricht bevorzugt etwa einem Viertel der Breite des Fugendichtungsbandes. In weiterer bevorzugter Ausgestaltung ist vorgesehen, daß die Imprägnierung an beiden Rand-Längsbereichen des Fugendichtungsbandes vorgenommen ist und daß nach Freigabe der Rückstellung das Fugendichtungsband im Profil eine mittlere Wölbung aufweist. Diese geometrische Charakterisierung sagt zugleich auch etwas über den verwendeten Schaumstoff aus. Dieser muß entsprechend weich bzw. flexibel sein, so daß sich die erwähnte Profilierung einstellt. Im einzelnen ist die Imprägnierung an beiden Längs-Randbereichen etwa über die gleiche Breite vorgenommen. Hierbei insgesamt etwa über die Hälfte der Breite des Fugendichtungsbandes. Bei relativ breiten Fugendichtungsbändern kann die Breite eines solchermaßen imprägnierten Rand-Längsbereiches auch relativ kleiner sein. Auch das Imprägnierungsmittel selbst wird bevorzugt in besonderer Form eingesetzt. Zwar ist es bislang schon bekannt, Imprägnierungsmittel zu verwenden, die einen gewissen Paraffinanteil aufweisen. Im Zusammenhang mit vorliegender Erfindung ist es jedoch bevorzugt, das Imprägnierungsmittel praktisch auf reiner Paraffinbasis auszuwählen. Darüber hinaus ist es auch bevorzugt, sogenannte Polywachse einzusetzen (Polyethylenglykole). Diese sind in ihrer Konsistenz einstellbar von salbenartig bis Hartwachs-ähnlich. Hierdurch kann entsprechend auf die Verzögerung der Rückstellung gesteuert werden. Zwar besitzt das Imprägnierungsmittel auch weiterhin gewisse Modifikationselemente, jedoch fallen diese hinsichtlich ihres Anteils an der Menge des Imprägnierungsmittels kaum ins Gewicht. Dieses zuletzt beschriebene besondere Imprägnierungsmittel kann hinsichtlich der weiter oben beschriebenen ersten Version der Erfindung an den Randbereichen in einfacher Weise "überimprägniert" werden, so daß sich also gleichsam eine Doppelschicht aus Imprägnierungsmittel dort ergibt. Dies ist im übrigen auch noch vorteilhaft hinsichtlich eines weiteren Verschlusses der Poren (wenn auch kein vollständiger Verschluß erreicht wird), so daß Feuchtigkeit weniger leicht eindringen kann (aber eine Dampfdurchlässigkeit gleichwohl noch im gewünschten Maße gegeben ist). Darüber hinaus hat dies auch den Vorteil, daß die in herkömmlicher Weise imprägnierten Fugendichtungsbänder an den Randbereichen, die mit dem besonderen Imprägnierungsmittel versehen sind, nicht die übliche Klebrigkeit aufweisen. Auch dieses unterstützt vorteilhaft die Einbaumöglichkeiten. Dieser Vorteil gilt natürlich gleicherweise für die beschriebene zweite Version.This problem is the subject of claim 1 or of claim 2 solved. The impregnation is different over a width of the joint sealing tape, namely in a longitudinal edge area and preferred over the entire thickness in this longitudinal edge area extending, the impregnation is carried out increasingly. This in such a way that after the reset is released a to the central longitudinal axis of the joint sealing tape setting increasing profile. It was found, that such impregnation of the joint sealing tape to an advantageous geometry of the joint sealing tape shortly after uncompression, such as one Unwind from a winding, and leads before installation. This teaching has meaning in the first place a conventional, open-cell foam and impregnated for delayed reset Joint sealing tape as it is mentioned in the introduction Literature is known. Here a longitudinal edge area, or both longitudinal edge areas, additionally reinforced or, as preferred, with a second impregnating agent, as described in more detail below is to be impregnated. Through this additional, reinforced or special impregnation is the foam of the joint sealing tape in this area too delayed to the middle area of the joint sealing tape, which in itself is a delayed reset is impregnated, back. Basically, such Delays in the range of 8, 16 and more Hours lie (this is also due to environmental conditions such as temperature, humidity, etc.). Further it is preferred that an impregnation, in particular with the special described below Impregnation agent, only in one (or both) longitudinal areas is made. By the fact that the joint sealing tape is not impregnated in this version is there (in a middle one Area) after a release of the default of the foam of the joint sealing tape immediately spontaneously. From this different provision on the The width of the joint sealing tape also results in this version the geometric shape of a Rising central longitudinal axis of the joint sealing tape Profiles. Here is the foam of the joint sealing tape uniformly chosen the same. The impregnated longitudinal edge area the joint sealing tape is from the same Foam formed like the non-impregnated area of the joint sealing tape. The joint sealing tape is also made entirely of an integral foam strip educated. Furthermore, it is also preferred that a initial compression only about a third to Half of the initial thickness of the foam material is. This also allows foam to be used a certain middle position in terms of porosity between the well-known open-cell foam and a complete or almost completely closed pore Takes foam. The joint sealing tapes of the type assumed to be known here so far only known from open-cell foam. To carry out the impregnation continuously can, it is even common for reticulated open-pore Foam to use, so a practically one hundred percent There is open porosity. In contrast, it is in Preferred within the scope of the present invention To use foam, which is essentially open-pore is, but its pores are comparatively smaller Inlet and outlet cross sections compared to a conventional, open-pore used for such joint sealing tapes Have foam. Here is the type of foam but less about the qualification "open-pore" or to make "closed-pore" rather than to characterize via air resistance. While Usually such joint sealing tapes are used open cell foam (on which the invention relates in a first variant, as detailed above explained, also relates) air resistance from approx. 250 to 260 l.qm.s (measured according to DIN 53887) owns, points to the version in question used foam such air resistance from 30 to 60, preferably 40 to 50 l.qm.s. on (measured with a so-called Frank device). The longitudinal edge area, which (only) has the impregnation preferably about a quarter of the width of the Joint sealing tape. In a further preferred embodiment it is envisaged that the impregnation on both Edge longitudinal areas of the joint sealing tape made is and that after release of the provision the joint sealing tape has a medium curvature in profile. This geometric characterization also says something about the foam used. This must be correspondingly soft or flexible, so that the sets mentioned profiling. In detail it is Impregnation on both longitudinal edge areas about made the same width. In total about over half the width of the joint sealing tape. At Relatively wide joint sealing tapes can be the width of such an impregnated longitudinal edge area also be relatively smaller. Also the impregnation agent itself is preferably used in a special form. So far it is already known, impregnation agent to use that have a certain paraffin content. In the context of the present invention it is however preferred, the impregnating agent practically pure paraffin base. Beyond that it is also preferred to use so-called poly waxes (polyethylene glycols). The consistency of these can be adjusted from ointment-like to hard wax-like. Hereby can accordingly on the delay of the provision being controlled. The impregnating agent does certain modification elements continue, however, these fall in terms of their share in the The amount of the impregnating agent hardly weighs. This special impregnating agent described last can regarding the first version described above the invention at the edge areas in a simple manner are "over-impregnated", so that it is as it were there is a double layer of impregnating agent there. Incidentally, this is also advantageous in terms of a further closure of the pores (even if none complete closure is achieved), so that moisture can penetrate less easily (but a vapor permeability nevertheless still to the desired extent given is). In addition, this also has the advantage that the joint sealing tapes impregnated in a conventional manner on the edge areas with the special Impregnation agents are provided, not the usual Exhibit stickiness. This also advantageously supports the installation options. This advantage naturally applies likewise for the described second version.

Der Imprägnierung mit dem am beschriebenen besonderen Imprägnierungsmittel kommt auch Bedeutung zu, wenn sie nicht auf einen Rand-Längsbereich, oder beide Rand-Längsbereiche, beschränkt ist. Dieses besondere Imprägnierungsmittel ermöglicht es bspw. überhaupt erst, die beschriebenen, hier bevorzugten Schaumstoffe zur verzögerten Rückstellung zu imprägnieren. Jedenfalls ist hinsichtlich der beschriebenen, sich vorzugsweise einstellenden geometrischen Besonderheiten auch eine Ausgestaltung möglich, bei welcher eine Imprägnierung mit dem besonderen Imprägnierungsmittel über die gesamte Oberfläche, jedoch im Bereich der Mittelachse nur über eine geringere Tiefe, durchgeführt ist. The impregnation with the special described Impregnation is also important when it not to one edge longitudinal area, or to both edge longitudinal areas, is limited. This special impregnation agent makes it possible, for example described, preferred here foams for delayed To impregnate provision. Anyway with regard to the described, preferably occurring geometrical peculiarities also a design possible, in which an impregnation with the special impregnation agent over the entire surface, however only in the area of the central axis shallower depth.

Nachstehend ist die Erfindung des weiteren anhand der beigefügten Zeichnung, die jedoch lediglich Ausführungsbeispiele darstellt, erläutert. Hierbei zeigt:

Fig. 1
eine Vorderansicht einer Fugendichtband-Rolle, mit gelöstem Anfang eines Fugendichtungsbandes;
Fig. 2
eine Seitenansicht des Fugendichtungsbandes gemäß Fig. 1;
Fig. 3
eine vergrößerte Querschnittsdarstellung des Fugendichtungsbandes gemäß Fig. 1 bzw. Fig. 2;
Fig. 4
eine vergrößerte Querschnittsdarstellung eines Fugendichtungsbandes mit einseitiger Imprägnierung des Rand-Längsbereiches;
Fig. 5
ein Fugendichtungsband gemäß Fig. 3 im Einbauzustand;
Fig. 6
ein Fugendichtungsband gemäß Fig. 4 im Einbauzustand und
Fig. 7
eine Darstellung des verwendeten Schaumstoffes in starker Vergrößerung.
The invention is further explained below with reference to the accompanying drawing, which, however, only represents exemplary embodiments. Here shows:
Fig. 1
a front view of a joint sealing tape roll, with a loose start of a joint sealing tape;
Fig. 2
a side view of the joint sealing tape according to FIG. 1;
Fig. 3
an enlarged cross-sectional view of the joint sealing tape according to FIG. 1 and FIG. 2;
Fig. 4
an enlarged cross-sectional view of a joint sealing tape with one-sided impregnation of the longitudinal edge area;
Fig. 5
a joint sealing tape according to Figure 3 in the installed state.
Fig. 6
4 in the installed state and
Fig. 7
a representation of the foam used in high magnification.

Dargestellt und beschrieben ist, zunächst mit Bezug zu den Fig. 1 bis 3, ein Fugendichtungsband 1, das aus einem weichen, porigen Schaumstoff besteht, der mit einer zur verzögerten Rückstellung führenden Imprägnierung versehen ist. Die Imprägnierung ist auf Basis von Polywachs vorgenommen, das nur zu einem geringen, volumenmäßig nicht ins Gewicht fallenden Anteil Modifikationsstoffe enthält. Is shown and described, initially with reference to 1 to 3, a joint sealing tape 1, the a soft, porous foam that is made with impregnation leading to delayed provision is provided. The impregnation is based on Made of poly wax, which is only a small, by volume non-significant proportion of modification substances contains.

Wesentlich ist, daß die Imprägnierung nur in einem Rand-Längsbereich 2 bzw. 3 des Fugendichtungsbandes vorgenommen ist. In einem Querschnitt des Fugendichtungsbandes 1, wie er in Fig. 1 bzw. Fig. 3 dargestellt ist, ist zu erkennen, daß sich der Rand-Längsbereich 2 bzw. 3 zwar über die gesamte Dicke d des Fugendichtungsbandes 1 erstreckt, nicht jedoch über die gesamte Breite b. Vielmehr beträgt eine Breite b 1 des - lediglich - imprägnierten Rand-Längsbereiches 2 oder 3 beim Ausführungsbeispiel nur etwa ein Viertel der Gesamtbreite b des Fugendichtungsbandes 1.It is essential that the impregnation only in a longitudinal edge area 2 or 3 of the joint sealing tape made is. In a cross section of the joint sealing tape 1, as shown in FIG. 1 or FIG. 3, is closed recognize that the edge longitudinal area 2 and 3 indeed over the entire thickness d of the joint sealing tape 1 extends, but not over the entire width b. Much more is a width b 1 of the - only - impregnated Edge longitudinal area 2 or 3 in the embodiment only about a quarter of the total width b of the joint sealing tape 1.

Weiter ist aus der Querschnittsdarstellung gemäß Fig. 1 bzw. Fig. 3 zu entnehmen, daß nach Freigabe der Rückstellung sich ein von einem Rand-Längsbereich 2 bzw. 3 ausgehendes, zu einer Mittellängsachse A (bzw. entsprechender senkrechter Mittel-Längsebene) ansteigendes (Flanke 4 bzw. 5) Profil einstellt.Furthermore, from the cross-sectional illustration according to FIG. 1 or Fig. 3 that after releasing the provision a starting from an edge longitudinal area 2 or 3, to a central longitudinal axis A (or corresponding vertical central longitudinal plane) rising (flank 4 or 5) sets the profile.

Bei der Ausführungsform gemäß Fig. 1 bis 3, bei welcher zwei imprägnierte Rand-Längsbereiche 2, 3 vorgesehen sind, ergibt sich ein insgesamt glockenförmiges Profil (im oberen Bereich) des Fugendichtungsbandes 1 kurz nach Freigabe der Rückstellung. Ein mittlerer Bereich 6 des Fugendichtungsbandes 1, der nicht mit einem zur verzögerten Rückstellung führenden Imprägnierungsmittel imprägniert ist, stellt sich sogleich nach Freigabe der Rückstellung spontan zurück. Aufgrund der zurückbleibenden Rand-Längsbereiche 2, 3 ergibt sich somit das dargestellte und beschriebene glockenförmige Profil.In the embodiment according to FIGS. 1 to 3, in which two impregnated edge longitudinal areas 2, 3 are provided there is an overall bell-shaped profile (in the upper area) of the joint sealing tape 1 shortly after Release of the provision. A central area 6 of the Joint sealing tape 1, which is not delayed with one Provision impregnated leading impregnation agent is immediately after the provision is released spontaneously back. Because of the lagging The longitudinal edge regions 2, 3 thus result in the depicted and described bell-shaped profile.

Wesentlich ist weiterhin, daß eine Dicke d1 des vollständig zurückgestellten Fugendichtungsbandes 1 (Fig. 2) lediglich etwa das Zwei- bis Dreifache der Dicke d2 des Fugendichtungsbandes 1 im komprimierten Zustand beträgt. It is also essential that a thickness d1 of the complete deferred joint sealing tape 1 (Fig. 2) only about two to three times the thickness d2 of Joint sealing tape 1 in the compressed state.

In Fig. 4 ist ein Fugendichtungsband 1 im Profil dargestellt, bei welchem lediglich ein Rand-Längsbereich 3' mit einem zur verzögerten Rückstellung führenden Imprägnierungsmittel versehen ist. Hier stellt sich ein insgesamt im wesentlichen keilförmiges Profil ein.4 shows a joint sealing strip 1 in profile, in which only an edge longitudinal region 3 ' with an impregnation agent leading to the delayed provision is provided. Here is a total essentially wedge-shaped profile.

In Fig. 5 ist das Fugendichtungsband 1 gemäß der Ausgestaltung nach den Fig. 1 bis 3 im Einbauzustand dargestellt, wobei eine vollständige Rückstellung der imprägnierten Rand-Längsbereiche 2, 3 noch nicht erfolgt ist.5, the joint sealing tape 1 is in accordance with the configuration 1 to 3 in the installed state, being a full provision of the impregnated Edge longitudinal areas 2, 3 has not yet taken place.

Aus Fig. 5 ist ersichtlich, daß das Rückstellungsprofil des mittleren Bereiches 6 hinsichtlich eines Einbaus eine vorteilhafte erste vollständige Abdichtung einer Fuge 7 zwischen zwei Mauereckbereichen 8, 9 oder dgl. ergibt. Weiterhin ist zu erkennen, wie an sich bekannt, daß das Fugendichtungsband 1 auf einer seiner Breitfläche mit einem Haftklebeband 10 versehen ist. Mittels des Haftklebebandes 10 ist bei dem Ausführungsbeispiel das Fugendichtungsband 1 mit einer Maueroberfläche 11 des Mauereckbereiches 9 verklebt.From Fig. 5 it can be seen that the default profile of the central area 6 with regard to installation an advantageous first complete sealing of a Joint 7 between two wall corner areas 8, 9 or the like. results. Furthermore, as is known per se, that the joint sealing tape 1 on one of its wide area is provided with a pressure sensitive adhesive tape 10. By means of the PSA tape 10 is in the embodiment Joint sealing tape 1 with a wall surface 11 of the Wall corner area 9 glued.

Nach vollständiger Rückstellung des Fugendichtungsbandes 1 auch in den Rand-Längsbereichen 2, 3 ergibt sich ein vorteilhafter gleichsam dreilagiger Aufbau in Dickenrichtung des Fugendichtungsbandes 1, also von einer Oberseite 12 (im Einbauzustand) zu einer Unterseite 13. Diese Schichtung ist auch bauphysikalisch von Bedeutung und vorteilhaft. In den Rand-Längsbereichen 2, 3 ergibt sich eine höhere Dichtigkeit und ein sehr weitgehender Verschluß der Schaumstoffporen. Dagegen ist in dem mittleren Bereich 6 des Fugendichtungsbandes 1 noch eine gewisse Durchlässigkeit, auch Dampfdurchlässigkeit, gegeben. Während - auch durch das Mauerwerk 8 hindurch - von innen gleichsam im "Bypass" zu dem im Einbauzustand gemäß Fig. 4 unteren Rand-Längsbereich 2 ein gewisser Dampfaustritt aus dem Inneren des abgedichteten Bauwerkes, also in Richtung der Fläche 12, möglich ist, ist bezüglich eines Eindringens von außen von Feuchtigkeit oder Dampf gleichsam eine doppelte Sperre durch die beiden Rand-Längsbereiche 3, 2 gegeben.After the joint sealing tape has been completely reset 1 also results in the longitudinal edge regions 2, 3 advantageous, as it were, three-layer structure in the thickness direction the joint sealing tape 1, that is, from an upper side 12 (when installed) to an underside 13. This Layering is also important in terms of building physics and advantageous. The result in the longitudinal edge regions 2, 3 a higher tightness and a very extensive closure the foam pores. In contrast, is in the middle Area 6 of the joint sealing tape 1 still a certain Permeability, also vapor permeability, is given. While - also through the masonry 8 - from inside as it were in the "bypass" to that in the installed state 4 lower edge longitudinal area 2 a certain Steam escapes from inside the sealed structure, is possible in the direction of the surface 12 regarding moisture intrusion from the outside or steam, as it were, a double barrier through the given two edge longitudinal areas 3, 2.

Es ist auch bevorzugt, daß die Imprägnierung beider Rand-Längsbereiche 2, 3 unterschiedlich ist, derart, daß ein im Einbauzustand zur Außenseite eines Gebäudes angeordneter Rand-Längsbereich 3 eine Wasserdampfdiffusion in größerem Maße zuläßt als die Imprägnierung des im Einbauzustand zum Gebäudeinneren hin angeordneten Rand-Längsbereiches 2. Ein gleiches Ergebnis, wobei diese Maßnahme aber auch zusätzlich ausgeführt sein kann, kann damit erreicht werden, daß die Imprägnierung eines (oder beider) Rand-Längsbereiche 2, 3 mit unterschiedlicher Intensität ausgeführt ist, derart, daß die Intensität von äußeren Flächen 12 bzw. 13 zu einem mittleren Bereich 6 des Fugendichtungsbandes 1 hin abnimmt.It is also preferred that the impregnation of both Edge longitudinal areas 2, 3 is different, such that one arranged in the installed state to the outside of a building Edge longitudinal region 3 a water vapor diffusion permits to a greater extent than the impregnation of the im Installed state towards the interior of the building along the longitudinal edge area 2. Same result, taking this Measure can also be carried out, however so that the impregnation of a (or both) edge longitudinal areas 2, 3 with different Intensity is carried out such that the intensity from outer surfaces 12 or 13 to a central area 6 of the joint sealing tape 1 decreases.

In Fig. 6 ist ein Einbauspiel, auch noch kurz nach Freigabe der verzögerten Rückstellung, bezüglich einer nur einseitigen Imprägnierung an einem Rand-Längsbereich des Dichtungsbandes 1 dargestellt.6 is an installation game, even shortly after release the delayed deferral, as of one only one-sided impregnation on a longitudinal edge area of the Sealing tape 1 shown.

Aufgrund des keilförmigen Querschnittprofils ergibt sich auch hier eine sehr gute Einbaumöglichkeit.Because of the wedge-shaped cross-sectional profile a very good installation option here too.

In die Fig. 5 und 6 ist jeweils in gestrichelter Darstellung auch der Verlauf der Flächen 12 bzw. 13 nach vollständiger Rückstellung der imprägnierten Rand-Längsbereiche 2 bzw. 3 dargestellt.5 and 6 is in each case in dashed lines also the course of the surfaces 12 and 13 after complete Provision of the impregnated longitudinal edge areas 2 and 3 shown.

Als Schaumstoff kommt insbesondere Polyurethanschaumstoff zur Anwendung.The foam comes in particular from polyurethane foam to use.

In Fig. 7 ist die Struktur des hier verwendeten Polyurethanschaumstoffes verdeutlicht. Die - aus zeichnungstechnischen Gründen leicht schematisch wiedergegebene - Struktur des Schaumstoffes besteht aus einem netzförmigen Grundgerüst, in welchem größere bzw. kleinere Öffnungen aufweisende Poren 14, 15, 16 usw. vorhanden sind. Obgleich die Öffnungsquerschnitte der Poren vergleichsweise groß dargestellt sind, ergibt sich real, auch durch die Übereinanderlage sehr vieler Schichten relativ kleinen Poren, eine wesentliche Geschlossenheit des Schaumstoffes. Bspw. kann durch einfaches Anpusten nur unter großen Mühen ein Luftdurchsatz erreicht werden. Dies entspricht dem meßtechnischen Wert, wie weiter vorne bereits angeführt, von ca. 40 bis 50 l.qm.s.7 shows the structure of the polyurethane foam used here clarifies. The - from drawing technology For reasons easily shown schematically - Structure of the foam consists of a reticulated Basic framework in which larger or smaller openings having pores 14, 15, 16, etc. are present. Although the opening cross-sections of the pores are comparatively are shown large results in real, too due to the superposition of very many layers relative small pores, an essential unity of the Foam. E.g. can only by blowing on air flow can be achieved with great difficulty. This corresponds to the metrological value, as further already listed at the front, from approx. 40 to 50 l.qm.s.

Das verwendete besondere Imprägnierungsmittel ist insoweit vorteilhaft, als es eine äußerst geringe Oberflächenspannung aufweist. Es dringt daher bei einfachem Tränken bereits in die Rand-Längsbereiche ein. Dies kann sogar noch dahingehend Bedeutung haben, daß eine gewisse geschlossene Struktur des Schaumstoffes vorliegen kann, mit einem geringeren prozentualen Anteil an offenen Poren, da dieses besondere Imprägnierungsmittel leicht in den Schaumstoff eindringt.The special impregnation agent used is so far advantageous as it has an extremely low surface tension having. It therefore penetrates simple Soak in the longitudinal edge areas. This can even meaning that a certain closed structure of the foam can be present, with a lower percentage of open Pores because this special impregnation agent is light penetrates into the foam.

Die vorstehende Beschreibung des Ausführungsbeispiels ist darauf ausgerichtet, daß ein mittlerer Bereich des Schaumstoffes überhaupt nicht imprägniert ist. Die praktisch gleichen Ergebnisse werden aber auch erreicht, wenn, wie anfangs als erste Version beschrieben, ein herkömmlicher Fugendichtungsstreifen, der auch in herkömmlicher Weise zur verzögerten Rückstellung imprägniert ist, an einem oder beiden Rand-Längsbereichen 2, 3 zusätzlich bzw. in besonderer Weise imprägniert ist.The above description of the embodiment is designed so that a central area of the Foam is not impregnated at all. The practical same results are also achieved if, as initially described as the first version, a conventional joint sealing strip, which also in conventional Impregnated way for delayed reset is on one or both longitudinal edge regions 2, 3 is impregnated additionally or in a special way.

Die in der vorstehenden Beschreibung, der Zeichnung und den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung von Bedeutung sein.The in the above description, the drawing and Features of the invention disclosed in the claims can both individually and in any combination for the realization of the invention may be of importance.

Claims (10)

  1. Joint sealing strip (1) of soft foam material, with an impregnation leading to a delayed reset position, characterised in that the foam is designed to be integral, that the impregnation is different over a width (b) of the joint sealing strip (1), wherein a stronger impregnation is carried out in one or both of the longitudinal edge regions (2, 3) and preferably extending over the entire thickness (d) in this longitudinal edge region (2, 3) in such a way that shortly after release of the reset position and prior to the complete resetting of the joint sealing strip (1) there is formed a profile rising towards a longitudinal centre axis (A) of the joint sealing strip (1).
  2. Joint sealing strip (1) of soft foam material, with an impregnation leading to a delayed reset position and two longitudinal edge regions (2, 3), characterised in that the integral foam material has open cells and that the impregnation is carried out only in the longitudinal edge regions (2, 3) in such a way that shortly after release of the reset position and prior to the complete resetting of the joint sealing strip (1) there is formed a profile rising towards the longitudinal centre axis (A) of the joint sealing strip (1).
  3. Joint sealing strip according to claim 1, characterised in that the impregnation is carried out only in the longitudinal edge region (2, 3).
  4. Joint sealing strip according to one or more of the preceding claims, characterised in that an initial compression amounts to only about a third to a half of the starting thickness (d1).
  5. Joint dealing strip according to one or more of the preceding claims, characterised in that the longitudinal edge region (2, 3) amounts to approximately a quarter (b1) of the width (b) of the joint sealing strip (1).
  6. Joint sealing strip according to one or more of the preceding claims, characterised in that during impregnation of both longitudinal edge regions (2, 3) these have a same width (b1).
  7. Joint sealing strip according to one or more of the preceding claims, characterised in that the impregnation of both longitudinal edge regions (2, 3) is different to such an extent that a longitudinal edge region (3) in the assembled state arranged on the outside of a building allows water vapour to diffuse to a greater extent than the impregnation of the longitudinal edge region (2) in the assembled state arranged inside the building.
  8. Joint sealing strip according to one or more of the preceding claims, characterised in that the impregnation of a longitudinal edge region (2, 3) is carried out over the width (b1) of this longitudinal edge region at different intensity in such a way that the intensity of outer areas (12) or (13) diminishes towards a central region (6) of the joint sealing strip (1).
  9. Joint sealing strip according to or more of the preceding claims, characterised in that the foam material has an air perviousness of 30 to 60 l.qm.s.
  10. Joint sealing strip according to one or more of the preceding claims, characterised in that the impregnating agent is selected on the basis of a substance having a very low surface tension, such as for example polywax.
EP94910379A 1993-03-10 1994-03-07 Joint sealing strip Expired - Lifetime EP0688382B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4307528A DE4307528A1 (en) 1993-03-10 1993-03-10 Joint sealing tape
DE4307528 1993-03-10
PCT/EP1994/000675 WO1994020701A1 (en) 1993-03-10 1994-03-07 Joint sealing strip

Publications (2)

Publication Number Publication Date
EP0688382A1 EP0688382A1 (en) 1995-12-27
EP0688382B1 true EP0688382B1 (en) 1999-01-13

Family

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EP94910379A Expired - Lifetime EP0688382B1 (en) 1993-03-10 1994-03-07 Joint sealing strip

Country Status (8)

Country Link
US (1) US5686174A (en)
EP (1) EP0688382B1 (en)
AT (1) ATE175746T1 (en)
DE (2) DE4307528A1 (en)
DK (1) DK0688382T3 (en)
ES (1) ES2126745T3 (en)
GR (1) GR3029393T3 (en)
WO (1) WO1994020701A1 (en)

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US10851541B2 (en) 2018-03-05 2020-12-01 Schul International Co., Llc Expansion joint seal for surface contact with offset rail
EP3470610A1 (en) 2018-03-16 2019-04-17 Hanno-Werk GmbH & Co. KG Joint sealing strip and method to produce such sealing strip
DE102018114770A1 (en) * 2018-06-20 2019-12-24 tremco illbruck GmbH Foil device, in particular facade foil
US10961733B2 (en) * 2018-06-22 2021-03-30 Glenn Robinson Expansion forms and associated techniques for repairing concrete damage
US10577760B2 (en) * 2018-06-22 2020-03-03 Glenn Robinson Joint forms and associated techniques for repairing and sealing concrete expansion joints
US10323409B1 (en) 2018-07-12 2019-06-18 Schul International Company, LLC Expansion joint system with flexible sheeting
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EP1705232A1 (en) * 2005-03-22 2006-09-27 ISO-Chemie GmbH Sealing element
WO2006099912A2 (en) * 2005-03-22 2006-09-28 Iso-Chemie Gmbh Sealing element
WO2006099912A3 (en) * 2005-03-22 2006-11-16 Iso Chemie Gmbh Sealing element
EP1795664A2 (en) 2005-12-07 2007-06-13 Tremco Illbruck Produktion GmbH Foam strip within an envelopping foil
EP1795664B1 (en) * 2005-12-07 2015-01-28 Tremco illbruck Produktion GmbH Foam strip within an envelopping foil
DE102009044558A1 (en) 2008-11-17 2010-05-20 Tremco Illbruck Produktion Gmbh Method for sealing a building joint and sealing element
DE202010005431U1 (en) 2010-05-11 2011-10-12 Tremco Illbruck Produktion Gmbh In a building joint insertable heating element and sealing element
DE102010016991A1 (en) 2010-05-11 2011-11-17 Tremco Illbruck Produktion Gmbh Method and sealing of a building joint and sealing element
WO2011141525A1 (en) 2010-05-11 2011-11-17 Tremco Illbruck Produktion Gmbh Method and sealing for a building joint and sealing element
EP2784231B1 (en) 2013-03-26 2016-11-16 Tremco illbruck Produktion GmbH Sealing tape and method for fabricating said sealing tape
DE102021122745A1 (en) 2021-09-02 2023-03-02 Pinta Abdichtung Gmbh Method of activating a sealing tape impregnated for delayed recovery and means for use therefor

Also Published As

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US5686174A (en) 1997-11-11
WO1994020701A1 (en) 1994-09-15
ES2126745T3 (en) 1999-04-01
EP0688382A1 (en) 1995-12-27
DE4307528A1 (en) 1994-09-15
GR3029393T3 (en) 1999-05-28
ATE175746T1 (en) 1999-01-15
DE59407656D1 (en) 1999-02-25
DK0688382T3 (en) 1999-09-06

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