EP4130419A1 - Sealing strip - Google Patents

Abstract

The invention relates to a sealing strip (1) for sealing joints, preferably in the construction sector, with an elongate base body (11) which has a first cheek side (111) on which an adhesive layer (13) is arranged, a second cheek side (111' ), on which an adhesive layer (13') is arranged, a first end face (112) and a second end face (112') is delimited and is made of a deformable material, wherein the base body (11) is made of a thermoplastic foam material and has a compression hardness (according to DIN ISO 3386-01) at 50% compression of a maximum of 30 kPa.

Description

The invention relates to an elongate sealing strip for building purposes, in particular for sealing joints and gaps when installing windows and doors in the shell and for general joints.

In order to optimize buildings in terms of energy, gaps that arise between the building components, particularly when doors and windows are installed, must be sealed using suitable means. The sealing of such joints is also relevant in connection with the unwanted penetration of wind, precipitation and moisture. In addition, the sealing of joints can be important for reasons of fire protection, soundproofing or protection against moisture.

Various pre-compressed and mostly impregnated sealing tapes are known from the prior art for this purpose. These sealing tapes have an elastic foam strip, which is pre-compressed so that it slowly expands after unrolling. The foam strip is usually made of polyurethane. An adhesive layer is attached to one side of the foam strip, with which the sealing tape can be glued to a component. The disadvantage of these pre-compressed sealing tapes is that the expansion rate of the foam strip depends on the ambient temperature. This leads to problems during installation, since the expansion at warm temperatures is so rapid that there is too little time to install the window or door after the sealing tape has been stuck on. The craftsman has to hurry after applying the sealing tape, which greatly increases the error rate. In addition, when the windows or doors are installed, the partially decompressed foam strips can transfer the load. At low temperatures, the greatly delayed recovery leads to a delay in sealing. In addition, pre-compressed sealing tapes are only suitable for a limited range of joint widths. On a construction site, therefore, there must always be several dimensions of pre-compressed Sealing tapes are kept in stock. This leads to increased space and material requirements and increases the risk that an unsuitable sealing tape is selected for a given joint. Another disadvantage is that the sealing properties of the foam against the wall are only limited, since the seal is based only on the expansion of the foam and the associated pressure against the wall.

From the EP 1 959 064 A1 a resilient sealing tape is known. The elastically recoverable sealing tape includes an elastically recoverable foam strip held in a compressed state by a detachable suture of at least one thread. The foam strip is inserted into the joint to be sealed and the foam strip is reset by loosening the seam. The seam can be unintentionally loosened during insertion and the foam strip can slip when the seam is loosened, which has a negative effect on the seal.

From the DE 296 13 232 U1 a ready-made wedge-shaped sealing strip for construction purposes is known. The sealing bead made of a flexible plastic material can be pressed into the area to be sealed. The disadvantage here is that the sealing strip is difficult to press into narrow joints due to the flexible plastic material.

The present invention is therefore based on the object of creating an improved sealing element with which joints in buildings, in particular joints between windows and doors and the adjacent masonry, can be sealed quickly, long-lastingly and reliably.

In particular, the sealing element should be usable on materials common in the construction sector, such as masonry, concrete, wood, plastic or metal, and should have good adhesion and sealing properties thereon.

Furthermore, the sealing element should be suitable for sealing joints in various areas of use and different widths and uneven or irregular surfaces.

In addition, a joint should be able to be sealed quickly and reliably with the sealing element, independently of the ambient temperature.

Furthermore, the sealing element should seal a joint with at least approximately the same quality in relation to both sides forming the joint.

This object is achieved with a sealing strip which has the features specified in claim 1. Advantageous configurations of the invention are specified in further claims, the following description and the figures.

The sealing strip, which is suitable for sealing joints, preferably in the construction sector, in particular for sealing joints between windows or doors and masonry, has an elongate base body which, through a first cheek side on which an adhesive layer is arranged, has a second cheek side , which is preferably designed symmetrically to the first cheek side and on which an adhesive layer is arranged, a first end face and a second end face is limited. The base body is made of a deformable material, preferably a foam. The deformable body enables optimal adjustment and thus optimized sealing against uneven surfaces and different joint widths.

According to the invention, the base body is made of a thermoplastic foam material, the base body having a compressive strength at 50% compression (according to DIN ISO 3386-01) of at most 30 kPa, preferably at most 15 kPa, most preferably at most 7 kPa. The sealing strip is thus easily compressible, which facilitates the installation of a window on masonry equipped with a sealing strip. At the same time, the sealing strip is stable enough to ensure sufficient mechanical stress on the adjacent building structure, so that the component transitions are tight. The sealing strip is torsionally stable, so that unwanted twisting along the axis of the sealing strip is prevented or at least greatly reduced during use. This prevents the adhesive layers from sticking together when the sealing strip is in a twisted position. The processing of the sealing strip is thereby facilitated and the process of sealing accelerated. Furthermore, the quality and uniformity of the bond is improved. In addition, the sealing strip can be glued in the exact position along the depth of the joint. Thermoplastic materials also have properties that are advantageous for the construction sector in terms of aging, media resistance and material compatibility.

The base body is made of a thermoplastic foam material. The foams used are preferably soft, open-cell, partially open-cell or closed-cell foams, in particular based on polyolefin, PVC or polystyrene or combinations thereof. Ethylene-butyl acrylate-based polymer material and/or ethylene-vinyl acrylate-based polymer material is particularly suitable. The foam material is preferably not impregnated. The selection of suitable foam materials which have the compressive strength according to the invention is within the scope of the skill of the person skilled in the art. The foam material is preferably not based on polyurethane, in particular not based on thermoplastic polyurethane.

In a preferred embodiment, the first side of the cheek is at least partially covered by a film strip which covers the adhesive layer in order to prevent unwanted sticking. The second cheek side is particularly preferably at least partially covered by a film strip which covers the adhesive layer in order to prevent unwanted sticking. The film strip is preferably easily removable by hand so that the adhesive layer is exposed and can be bonded to the window or door or to masonry.

In a further preferred embodiment, an overhang which protrudes beyond the cheek sides is formed on the foil strip. This makes it easier to pull off the foil strip.

The average cell size of the foam material is preferably 0.6mm to 1.5mm, particularly preferably 0.9mm to 1.5mm. The average cell size is the diameter of a sphere that has the same volume as the average cell.

The known adhesives are suitable as adhesives, for example adhesives based on methacrylate, as in FIG DE 296 13 232 U1 described. The foil strip for covering the adhesive layer is preferably a siliconized foil.

The base body is preferably made of an at least approximately open-cell foam material. The base body is therefore compressible and has an optimal expansion behavior for applications in the construction sector. In a preferred embodiment, the base body is made of a closed-cell, extruded foam material which is made at least approximately open-cell by mechanical post-treatment. The follow-up treatment can be carried out, for example, by puncturing with one or more needles, with which a large part of the closed cells are punctured and thus made open-celled. A corresponding method for mechanical post-treatment is in BE 1026558 described. Materials and manufacturing processes that result in a closed-cell foam material can be made open-celled and the material properties can be optimized for the application. Preferably 70 to 99%, more preferably 80 to 99%, particularly preferably 91% to 99% of the cells are made open-celled by the mechanical post-treatment. The foam material is so easily compressible and at the same time airtight and impermeable to driving rain.

The base body is preferably made from an ethylene-butyl acrylate-based polymer material and/or from an ethylene-vinyl acrylate-based polymer material. In a preferred embodiment, the base body is made from a crosslinked polymer material. The sealing strip thus has an aging resistance that is suitable for the construction sector.

In a particularly preferred embodiment, the compressive strength of the base body decreases with increasing open-cell content of the thermoplastic foam material and can thus be adjusted to the specific area of use by the degree of open-cell content. The compressive strength of the base body preferably also decreases as the density of the thermoplastic foam material decreases. The application-specific compressive strength can thus be adjusted by adjusting the density of the thermoplastic Foam material can be optimized. More preferably, the compression hardness of the base body decreases with increasing cell size of the thermoplastic foam material, as a result of which the compression hardness can be further optimized with the polymer material remaining the same. In preferred embodiments, a reduction in the compressive strength of the base body can be adjusted by at least one of the following features: by increasing the open-cell content of the thermoplastic foam material; by a decrease in the density of the thermoplastic foam material; or by an increase in the cell size of the thermoplastic foam material.

In a particularly preferred embodiment, the sealing strip can be rolled up. As a result, the elongate sealing strip can be transported and stored in a space-saving manner.

The sealing strip can preferably be rolled up in such a way that the same film strip covers both the adhesive layer on the first cheek side and the adhesive layer on the second cheek side on one side and prevents them from sticking together. Both layers of adhesive can thus be covered with just a single strip of film.

In a particularly preferred embodiment, the base body has a stiffening zone which has an increased compressive strength (according to DIN ISO 3386-01) compared to the rest of the base body. This property is preferably achieved in that the stiffening zone has a lower proportion of open-cell foam cells compared to the rest of the base body. This is preferably achieved by less mechanical after-treatment of the stiffening zone compared to the rest of the base body. The mechanical properties of the base body are improved by the stiffening zone and are adaptable.

In a particularly preferred embodiment, the first end face and/or the second end face are convex in relation to the base body. The torsional stability of the sealing strip is increased by the convex configuration, so that during use undesired twisting along the axis of the sealing strip is prevented or at least greatly reduced. As a result, the adhesive layers are glued together in a twisted position of the Sealing strips prevented. This makes processing the sealing strip easier and speeds up the sealing process. Furthermore, the quality and uniformity of the bond is improved. In addition, the sealing strip can be glued in the exact position along the depth of the joint.

The first side of the cheek and/or the second side of the cheek are preferably configured concavely with respect to the base body. Due to the concave configuration, the adhesive layers arranged on the cheeks do not come into contact with the structure when the cheeks come into contact for the first time, so that unwanted sticking can be prevented or at least reduced.

For the purposes of the present invention, concave means that one side is curved inward relative to the base body. As concave within the meaning of the present invention, in addition to the example in Figures 2f and 2h shown concave shape also understood an indentation, one or more grooves, a depression or a milled structure. For the purposes of the present invention, convex means that one side is curved outwards relative to the base body.

In a particularly preferred embodiment, the first end face of the base body of the sealing strip has a cross section that is at least approximately in the shape of a segment of a circle or a segment of an ellipse. Preferably, the second end face of the base body of the sealing strip has an at least approximately circular segment-shaped or elliptical segment-shaped cross section. In a particularly preferred embodiment, the first end face and the second end face are mirror-symmetrical to one another.

Particularly preferably, the first adhesive layer and the second adhesive layer comprise different adhesives. The adhesion and adhesive properties can thus be matched to the respective materials of the components.

The known adhesives are suitable as adhesives, for example adhesives based on methacrylate, as in FIG DE 296 13 232 U1 described. A hot-melt adhesive based on polyolefin, for example, is particularly suitable as the low-tack adhesive. A rubber-based, pressure-sensitive hot-melt adhesive, for example, is particularly suitable as the high-tack adhesive. At the foil strip a siliconized film is preferably used to cover the adhesive layer.

The first adhesive layer particularly preferably comprises a high-tack adhesive. The second adhesive layer preferably comprises a low-tack adhesive. In a preferred embodiment, the tack of the first adhesive layer (loop tack according to FINAT 9) is at least three times, preferably at least five times, particularly preferably at least ten times the tack of the second adhesive layer (loop tack according to FINAT 9).

Preferably, the first layer of adhesive comprises two parallel elongate lines of adhesive separated by an intermediate zone not covered with adhesive. This allows the foil strip to be easily removed from the adhesive layer.

The second layer of adhesive preferably covers only the central portion of the second cheek.

Sealing strips according to the invention are preferably suitable for sealing joints with joint widths between 3 mm and 200 mm, preferably 3 mm and 150 mm, even more preferably 3 mm and 100 mm, and most preferably between 4 mm and 60 mm. A single sealing strip or at least a small number of differently dimensioned sealing strips can preferably be used for different joint widths, which reduces the space and storage requirements on a construction site. The sealing strip preferably has a dimension of 5 to 400 mm in width and/or height. The length of the sealing strip before installation is preferably several meters, with the sealing strip being easily cut to any required length.

The first end face of the base body and/or the second end face of the base body is preferably impervious to driving rain or airtight in accordance with DIN 18542/EN1027. In a preferred embodiment, the base body is impervious to driving rain or airtight in accordance with DIN 18542/EN1027. In the present case, impervious to driving rain means impervious in particular to a pressure of more than 600 Pa.

In a further preferred embodiment, the width of the base body is at least one and a half times, preferably at least twice, more preferably at least two and a half times the height of the base body. In this case, the width designates the distance between the first cheek surface and the second cheek surface. The height denotes the distance between the first face and the second face.

In a particularly preferred embodiment, the base body has a compressive strength at 50% compression of at most 30 kPa, preferably at most 15 kPa, particularly preferably at most 7 kPa. Preferred ranges for the compression hardness at 50% compression are from 0.5 kPa to 30 kPa, in particular from 1 kPa to 30 kPa. The compressive strength at 50% compression in the context of the present invention relates to a determination according to DIN ISO 3386-01.

The base body preferably has a density of at most 50 kg/m ³ , particularly preferably at most 30 kg/m ³ .

The production of the sealing strip is not subject to any particular restrictions and is carried out using the methods known to those skilled in the art.

The sealing strip is preferably produced by extrusion, particularly preferably by co-extrusion, lamination or by packaging.

The use of a sealing strip according to the invention for sealing a joint between masonry or woodwork and a window or door is also the subject of this invention.

• Fig. 1a den Grundkörper 11 eines erfindungsgemässen Dichtstreifens in einer ersten Ausgestaltung;
• Fig. 1b einen erfindungsgemässen Dichtstreifen 1 mit dem Grundkörper aus Fig. 1a;
• Fig. 2a den Dichtstreifen 1 aus Fig. 1b in einem Querschnitt;
• Fig. 2b eine zweite Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt;
• Fig. 2c eine dritte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt;
• Fig. 2d eine vierte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt;
• Fig. 2e eine fünfte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt;
• Fig. 2f eine sechste Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt;
• Fig. 2g eine siebte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt;
• Fig. 2h eine achte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt;
• Fig. 3a den Dichtstreifen 1 aus Fig. 1b mit durch einen Folienstreifen 14 bedeckter Klebstoffschicht 13;
• Fig. 3b eine neunte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 mit einem Folienstreifen 14;
• Fig. 4 einen erfindungsgemässen Dichtstreifen 1 in einer Fuge 7;
• Fig. 5a ein schematisches Mauerwerk 8 und ein schematisches Fenster oder Türe 9 mit daran entlang ausgerichtetem Dichtstreifen 1;
• Fig. 5b das Mauerwerk 8 und das Fenster oder Türe 9 aus Fig. 5a mit auf dem Mauerwerk 8 aufgeklebtem Dichtstreifen 1;
• Fig. 5c eine Fuge 7 ausgebildet zwischen dem Mauerwerk 8 und dem Fenster oder Türe 9 aus Fig. 5b mit einem die Fuge abdichtenden Dichtstreifen 1;
• Fig. 6a eine mit zwei Dichtstreifen 1, 1' abgedichtete Eckfuge 7 in einer Draufsicht;
• Fig. 6b eine mit einem Dichtstreifen 1 abgedichtete Eckfuge 7 in einer Draufsicht.
• Fig. 1a zeigt den Grundkörper 11 eines erfindungsgemässen Dichtstreifens in einer ersten Ausgestaltung. Der Grundkörper 11 wird durch eine erste Wangenseite 111, eine zweite Wangenseite 111', eine erste Stirnseite 112 und eine zweite Stirnseite 112' begrenzt. Das gezeigte Koordinatensystem definiert die Orientierung der in dieser Anmeldung verwendeten Begriffe Breite (B), Länge (L) und Höhe/Tiefe (H).
• Fig. 1b zeigt einen erfindungsgemässen Dichtstreifen 1 mit dem Grundkörper 11 aus Fig. 1a. Zusätzlich zu den in Fig. 1a gezeigten Komponenten, sind auf den Wangenseiten 111, 111' jeweils eine Klebstoffschicht 13, 13' angeordnet. Die Klebstoffschichten 13, 13' bedecken die entsprechenden Wangenseiten 111, 111' jeweils entlang der Länge grossflächig.
• Fig. 2a zeigt den Dichtstreifen 1 aus Fig. 1b in einem Querschnitt. Der Grundkörper 11 ist durch zwei Wangenseiten 111, 111' und zwei Stirnseiten 112, 112' begrenzt. An den beiden Wangenseiten 111, 111' ist jeweils eine Klebstoffschicht 13, 13' angeordnet.
• Fig. 2b zeigt eine zweite Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt. In der gezeigten Ausgestaltung sind die Stirnseiten 112, 112' länger als die Wangenseiten 111, 111' ausgeführt. Hierdurch können sehr breite Fugen abgedichtet werden.
• Fig. 2c zeigt eine dritte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt. Der Grundkörper 11 ist durch zwei Wangenseiten 111, 111' und zwei Stirnseiten 112, 112' begrenzt. An den beiden Wangenseiten 111, 111' ist jeweils eine Klebstoffschicht 13, 13' angeordnet. Die beiden Wangenseiten 111, 111' sind parallel zueinander ausgerichtet. In der gezeigten Ausgestaltung sind die beiden Stirnseiten 112, 112'jeweils spiegelsymmetrisch und konvex bezüglich des Grundkörpers 11 ausgestaltet.
• Fig. 2d zeigt eine vierte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt. In der gezeigten Ausgestaltung weisen die Stirnseiten 112, 112' jeweils eine durch jeweils zwei Seiten begrenzte dreieckige Form auf.
• Fig. 2e zeigt eine fünfte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt. Bei der gezeigten Ausgestaltung weisen die erste Stirnseite 112 und die zweite Stirnseite 112' unterschiedliche Querschnitte auf. Vorzugsweise ist die Stirnseite 112 konvex bezüglich des Grundkörpers 11 ausgestaltet und die Stirnseite 112' weist eine durch jeweils zwei Seiten begrenzte dreieckige Form auf.
• Fig. 2f zeigt eine sechste Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt. In der gezeigten Ausgestaltung ist die erste Wangenseite 111 konkav bezüglich des Grundkörpers 11 ausgestaltet.
• Fig. 2g zeigt eine siebte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt. Der Grundkörper 11 ist durch zwei Wangenseiten 111, 111' und zwei Stirnseiten 112, 112' begrenzt. An den beiden Wangenseiten 111, 111' ist jeweils eine Klebstoffschicht 13, 13' angeordnet. Die beiden Wangenseiten 111, 111' sind jeweils konkav bezüglich des Grundkörpers 11 geformt. Der Grundkörper 11 weist eine Versteifungszone 11A auf, welche sich von der ersten Stirnseite 112 zur zweiten Stirnseite 112' erstreckt. Die Versteifungszone 11A ist im Grundkörper 11 integriert und geht übergangslos in den Grundkörper 11 über.
• Fig. 2h zeigt eine achte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 in einem Querschnitt. In der gezeigten Ausgestaltung sind die Stirnseiten 112, 112' jeweils konvex bezüglich des Grundkörpers 11 ausgestaltet. Die beiden Wangenseiten 111, 111' sind jeweils konkav bezüglich des Grundkörpers 11 ausgestaltet.
• Fig. 3a zeigt den Dichtstreifen 1 aus Fig. 1b mit durch einen Folienstreifen 14 bedeckter Klebstoffschicht 13. Der Grundkörper 11 ist durch zwei Wangenseiten 111, 111' und zwei Stirnseiten 112, 112' begrenzt. An den beiden Wangenseiten 111, 111' ist jeweils eine Klebstoffschicht 13, 13' angeordnet. In der gezeigten Ausgestaltung sind am Folienstreifen 14 beidseitig jeweils ein Überstand 14A, 14B angeformt.
• Fig. 3b zeigt eine neunte Ausgestaltung eines erfindungsgemässen Dichtstreifens 1 mit einem Folienstreifen 14. Die erste Stirnseite 112 und die zweite Stirnseite 112' sind konvex bezüglich des Grundkörpers 11 ausgestaltet.
• Fig. 4 zeigt einen erfindungsgemässen Dichtstreifen 1 in einer Fuge 7. Der Grundkörper 11 ist zumindest teilweise komprimiert, wodurch die Wangenseiten 111, 111' bzw. die daran angeordneten Klebstoffschichten 13, 13' zumindest teilweise an das Mauerwerk 8 und das Fenster oder die Türe 9 gepresst werden. Die Klebstoffschichten 13, 13' verkleben mit dem Mauerwerk 8 und dem Fenster oder Türe 9, wodurch die Abdichtung und Anhaftung des Dichtstreifens 1 verbessert wird.
• Fig. 5a bis Fig. 5c illustrieren die erfindungsgemässe Verwendung eines erfindungsgemässen Dichtstreifens 1 zum Abdichten einer Fuge 7.
• Fig. 5a zeigt ein schematisches Mauerwerk 8 und ein schematisches Fenster oder Türe 9 mit daran entlang ausgerichtetem Dichtstreifen 1.
• Fig. 5b zeigt das Mauerwerk 8 und das Fenster oder Türe 9 aus Fig. 5a mit auf dem Mauerwerk 8 aufgeklebtem Dichtstreifen 1. Der Folienstreifen des Dichtstreifens 1 ist gegenüber der Fig. 5a entfernt worden. Durch die Klebstoffschicht 13 ist der Dichtstreifen 1 mit dem Mauerwerk 8 verklebt. Der Grundkörper 11 kann im verklebten Zustand durch Andrücken gegen das Mauerwerk 8 zusätzlich komprimiert werden. Die Verklebung der Klebstoffschicht 13 mit dem Mauerwerk 8 kann ebenfalls durch Andrücken erhöht werden.
• Fig. 5c zeigt eine Fuge 7 ausgebildet zwischen dem Mauerwerk 8 und dem Fenster oder Türe 9 aus Fig. 5b mit einem die Fuge abdichtenden Dichtstreifen 1. Das Fenster oder Türe 9 ist mit dem Dichtstreifen 1 über die Klebstoffschicht 13' verklebt. Der Grundkörper 11 ist vorzugsweise zumindest teilweise komprimiert, so dass eine rückstellende und dichtende Kraft vom Grundkörper 11 auf das Mauerwerk 8 und das Fenster oder Türe 9 ausgeübt wird. Die Dichtwirkung wird durch das beidseitige Verkleben zusätzlich verbessert.
• Fig. 6a zeigt eine mit zwei Dichtstreifen 1, 1' abgedichtete Eckfuge 7 in einer Draufsicht. Die beiden Dichtstreifen 1 und 1' wurden so gekürzt, dass der Eckbereich durch die Grundkörper 11 der jeweiligen Dichtstreifen 1 und 1' abgedichtet wird. Die Dichtstreifen 1, 1' sind jeweils mit dem Mauerwerk 8 und dem Fenster oder Türe 9 verklebt.
• Fig. 6b zeigt eine mit einem Dichtstreifen 1 abgedichtete Eckfuge 7 in einer Draufsicht. Der Dichtstreifen 1 ist entlang der Ecke am Fenster oder Türe 9 unterbruchsfrei mit diesem verklebt. Auf der gegenüberliegenden Seite ist der Dichtstreifen 1 mit dem Mauerwerk entlang der Ecke unterbruchsfrei mit diesem verklebt. Der Eckbereich wird nur durch den Grundkörper 11 abgedichtet. Durch den teilweise komprimierten Grundkörper übt dieser entlang der Pfeile eine Kraft aus. Hierdurch wird eine gute Anpresswirkung gegenüber der Wand 8 im Eckbereich und dem gegenüberliegenden Fenster oder Türe 9 erreicht.

The invention is explained in more detail below with reference to drawings. It shows:

• Fig. 1a the base body 11 of a sealing strip according to the invention in a first embodiment;
• Fig. 1b a sealing strip 1 according to the invention with the base body Fig. 1a ;
• Figure 2a the sealing strip 1 Fig. 1b in a cross section;
• Figure 2b a second embodiment of a sealing strip 1 according to the invention in a cross section;
• Figure 2c a third embodiment of a sealing strip 1 according to the invention in a cross section;
• Fig. 2d a fourth embodiment of a sealing strip 1 according to the invention in a cross section;
• Figure 2e a fifth embodiment of a sealing strip 1 according to the invention in a cross section;
• Fig. 2f a sixth embodiment of a sealing strip 1 according to the invention in a cross section;
• 2g a seventh embodiment of a sealing strip 1 according to the invention in a cross section;
• Fig. 2h an eighth embodiment of a sealing strip 1 according to the invention in a cross section;
• Figure 3a the sealing strip 1 Fig. 1b with adhesive layer 13 covered by a film strip 14;
• Figure 3b a ninth embodiment of a sealing strip 1 according to the invention with a film strip 14;
• 4 a sealing strip 1 according to the invention in a joint 7;
• Figure 5a a schematic masonry 8 and a schematic window or door 9 with sealing strip 1 aligned therealong;
• Figure 5b the masonry 8 and the window or door 9 Figure 5a with sealing strips 1 glued to the masonry 8;
• Figure 5c a joint 7 formed between the masonry 8 and the window or door 9 out Figure 5b with a joint sealing strip 1;
• Figure 6a a top view of a corner joint 7 sealed with two sealing strips 1, 1';
• Figure 6b a corner joint 7 sealed with a sealing strip 1 in a plan view.
• Fig. 1a shows the base body 11 of a sealing strip according to the invention in a first embodiment. The base body 11 is delimited by a first cheek side 111, a second cheek side 111', a first end face 112 and a second end face 112'. The coordinate system shown defines the orientation of the terms width (W), length (L) and height/depth (H) used in this application.
• Fig. 1b shows a sealing strip 1 according to the invention with the base body 11 Fig. 1a . In addition to the in Fig. 1a components shown, an adhesive layer 13, 13' is arranged on the cheek sides 111, 111'. The adhesive layers 13, 13' cover the corresponding cheek sides 111, 111' over a large area along the length.
• Figure 2a shows the sealing strip 1 Fig. 1b in a cross section. The base body 11 is delimited by two cheek sides 111, 111' and two end faces 112, 112'. An adhesive layer 13, 13' is arranged on each of the two cheek sides 111, 111'.
• Figure 2b shows a second embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the end faces 112, 112' are longer than the cheek faces 111, 111'. This allows very wide joints to be sealed.
• Figure 2c shows a third embodiment of a sealing strip 1 according to the invention in a cross section. The base body 11 is delimited by two cheek sides 111, 111' and two end faces 112, 112'. An adhesive layer 13, 13' is arranged on each of the two cheek sides 111, 111'. The two cheek sides 111, 111' are aligned parallel to one another. In the embodiment shown, the The two end faces 112, 112' are each designed to be mirror-symmetrical and convex with respect to the base body 11.
• Fig. 2d shows a fourth embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the end faces 112, 112' each have a triangular shape delimited by two sides.
• Figure 2e shows a fifth embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the first end face 112 and the second end face 112' have different cross sections. The end face 112 is preferably convex in relation to the base body 11 and the end face 112′ has a triangular shape delimited by two sides in each case.
• Fig. 2f shows a sixth embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the first cheek side 111 is concave in relation to the base body 11 .
• 2g shows a seventh embodiment of a sealing strip 1 according to the invention in a cross section. The base body 11 is delimited by two cheek sides 111, 111' and two end faces 112, 112'. An adhesive layer 13, 13' is arranged on each of the two cheek sides 111, 111'. The two cheek sides 111, 111' are each formed concavely with respect to the base body 11. The base body 11 has a stiffening zone 11A, which extends from the first end face 112 to the second end face 112'. The stiffening zone 11A is integrated in the base body 11 and merges into the base body 11 without a transition.
• Fig. 2h shows an eighth embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the end faces 112, 112' are each designed convex with respect to the base body 11. The two cheek sides 111, 111' are each configured concavely with respect to the base body 11.
• Figure 3a shows the sealing strip 1 Fig. 1b with an adhesive layer 13 covered by a foil strip 14. The base body 11 is delimited by two cheek sides 111, 111' and two end faces 112, 112'. An adhesive layer 13, 13' is arranged on each of the two cheek sides 111, 111'. In the shown In one embodiment, a projection 14A, 14B is formed on both sides of the foil strip 14 .
• Figure 3b shows a ninth embodiment of a sealing strip 1 according to the invention with a film strip 14. The first end face 112 and the second end face 112' are convex with respect to the base body 11.
• 4 shows a sealing strip 1 according to the invention in a joint 7. The base body 11 is at least partially compressed, whereby the cheek sides 111, 111' or the adhesive layers 13, 13' arranged thereon are at least partially pressed against the masonry 8 and the window or door 9 . The adhesive layers 13, 13' stick to the masonry 8 and the window or door 9, whereby the sealing and adhesion of the sealing strip 1 is improved.
• Figures 5a to 5c illustrate the use according to the invention of a sealing strip 1 according to the invention for sealing a joint 7.
• Figure 5a shows a schematic masonry 8 and a schematic window or door 9 with a sealing strip 1 aligned along it.
• Figure 5b shows the masonry 8 and the window or door 9 from Figure 5a with the sealing strip 1 glued to the masonry 8. The foil strip of the sealing strip 1 is opposite the Figure 5a been removed. The sealing strip 1 is bonded to the masonry 8 by the adhesive layer 13 . The base body 11 can be additionally compressed in the bonded state by pressing against the masonry 8 . The adhesion of the adhesive layer 13 to the masonry 8 can also be increased by pressing.
• Figure 5c shows a joint 7 formed between the masonry 8 and the window or door 9 from Figure 5b with a sealing strip 1 sealing the joint. The window or door 9 is glued to the sealing strip 1 via the adhesive layer 13'. The base body 11 is preferably at least partially compressed, so that a restoring and sealing force is exerted by the base body 11 on the masonry 8 and the window or door 9 . The sealing effect is additionally improved by gluing on both sides.
• Figure 6a shows a top view of a corner joint 7 sealed with two sealing strips 1, 1'. The two sealing strips 1 and 1' have been shortened in such a way that the corner area is sealed by the base body 11 of the respective sealing strips 1 and 1'. The sealing strips 1, 1' are each bonded to the masonry 8 and the window or door 9.
• Figure 6b shows a corner joint 7 sealed with a sealing strip 1 in a plan view. The sealing strip 1 is glued to the window or door 9 along the corner without interruption. On the opposite side of the sealing strip 1 is glued to the masonry along the corner without interruption with this. The corner area is only sealed by the base body 11 . Due to the partially compressed body, it exerts a force along the arrows. This achieves a good pressing effect against the wall 8 in the corner area and the window or door 9 opposite.

Also according to the invention is any combination of the configurations of the sealing strip described in the figures and the description. In particular, individual features of the configurations described can be combined with one another according to the invention. The sealing strip according to the invention is not only suitable for sealing joints in the construction sector, but is also suitable for joints in mechanical engineering, the automotive sector or other areas.

Reference List

1, 1'

sealing strips

11

body

11A

stiffening zone

111

first side of cheek

111

second side of cheek

112

first face

112'

second face

13, 13'

adhesive layer

14, 14'

foil strips

14A, 14B

Got over

7

Gap

8th

masonry

9

window or door

FB

joint width

H

height / depth

B

Broad

L

length

Claims (15)

Sealing strips (1) for sealing joints (7), preferably in the construction sector, in particular for sealing joints between windows or doors (9) and masonry (8), with an elongate base body (11) which is connected by a first cheek side (111 ), on which an adhesive layer (13) is arranged, a second cheek side (111'), on which an adhesive layer (13') is arranged and which is preferably designed symmetrically to the first cheek side (111), a first end face (112) and a second end face (112') is delimited and is made of a deformable material, characterized in that the base body (11) is made of a thermoplastic foam material, the base body (11) having a compressive strength (according to DIN ISO 3386-01). 50% compression of at most 30 kPa, preferably at most 15 kPa, most preferably at most 7 kPa. Sealing strip (1) according to Claim 1, characterized in that the first cheek face (111) is at least partially covered by a foil strip (14) which covers the first adhesive layer (13) in order to prevent unwanted adhesion. Sealing strip (1) according to Claim 1 or 2, characterized in that the average cell size of the foam material is 0.6 mm to 1.5 mm, preferably 0.9 mm to 1.5 mm. Sealing strip (1) according to Claim 1, 2 or 3, characterized in that the base body (11) is made from an at least approximately open-cell foam material and/or that the base body (11) is made from a closed-cell extruded foam material which is closed by a mechanical post-treatment is made open-celled, the open-celledness being 70 to 99%, preferably 80 to 99% and most preferably 91 to 99%. Sealing strip (1) according to any one of claims 1 to 4, characterized in that the base body (11) is made of an ethylene-butyl acrylate-based and / or an ethylene-vinyl acrylate-based polymer material and / or that the Base body (11) is made of a crosslinked polymer material. Sealing strip (1) according to one of Claims 1 to 5, characterized in that a decrease in the compression hardness of the base body (11) can be adjusted by at least one of the following features: - by an increase in the open cell content of the thermoplastic foam material; - by a decrease in the density of the thermoplastic foam material; or - by an increase in the cell size of the thermoplastic foam material. Sealing strip (1) according to one of Claims 1 to 6, characterized in that the sealing strip (1) can be rolled up, with the base body (11) preferably being compressed. Sealing strip (1) according to one of Claims 1 to 7, characterized in that the base body (11) has at least one stiffening zone (11A) which has an increased compressive strength compared to the rest of the base body (11). Sealing strip (1) according to one of Claims 1 to 8, characterized in that the first end face (112) and/or the second end face (112') are convex in relation to the base body (11) and/or that the first cheek side (111 ) and/or the second cheek side (111') is configured concavely with respect to the base body (11). Sealing strip (1) according to one of Claims 1 to 9, characterized in that the first adhesive layer (13) and the second adhesive layer (13') comprise different adhesives. Sealing strip (1) according to any one of claims 1 to 10, characterized in that the first adhesive layer (13) comprises a high-tack adhesive and / or that the second adhesive layer (13 ') comprises a low-tack adhesive and / or that the Tack of the first adhesive layer (13) (loop tack according to FINAT 9) is at least three times, preferably at least five times, particularly preferably at least ten times the tack of the second adhesive layer (13') (loop tack according to FINAT 9). Sealing strip (1) according to one of Claims 1 to 11, characterized in that the base body (11) has a density of at most 50 kg/m ³ , preferably at most 30 kg/m ³ . Sealing strip (1) according to one of Claims 1 to 12, characterized in that the width of the base body (11) is at least one and a half times, preferably at least twice, more preferably at least two and a half times the height of the base body (11), the width being between the first cheek surface (111) and the second cheek surface (111') and the height between the first face (112) and the second face (112') is measured. Sealing strip (1) according to one of Claims 1 to 13, characterized in that the sealing strip (1) is produced by extrusion or by packaging. Use of a sealing strip (1) according to one of Claims 1 to 14 for sealing a joint (7) between masonry (8) and a window or a door (9).

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