CA3093870A1 - Sealing strip - Google Patents

Abstract

The invention relates to a sealing strip (1) for sealing joints (7), preferably in the construction sector, in particular for sealing joints between windows or doors (9) and masonry (8), said sealing strip having an elongate and preferably wedge-like main body (11), which is delimited by two cheek sides (111, 111'), which are preferably symmetrical, and at least one front side (112), and is made of a deformable material, preferably a foam material. According to the invention, the sealing strip (1) comprises a structural element (12) which preferably extends over the majority of the length of the sealing strip (1), is arranged at least partially in the main body (1), and is made of a dimensionally stable material, by which the sealing strip (1) can be mechanically loaded and can be pressed into the joint (7).

Description

PCT/EP2o19/056610 March 15, 2019 SILU Verwaltung AG S15o911WOCA
Sealing strip The invention relates to an elongated and preferably wedge-shaped sealing strip for building purposes, in particular for sealing joints and gaps when installing windows and doors in the shell as well as for general joints.
In order to optimize the energy efficiency of buildings, joints, which particularly arise between the components when doors and windows are installed, must be sealed using to suitable means. The sealing of such joints is also relevant in connection with the undesired penetration of wind, rainfall and moisture. In addition, the sealing of joints can be important for reasons of fire protection, soundproofing or protection against moisture.
Various pre-compressed sealing tapes are known from the prior art for this purpose.
These sealing tapes have an elastic foam strip which is pre-compressed in such a way that it expands slowly after it has been unrolled. On one side of the foam strip there is an adhesive layer with which the sealing tape can be glued to a component. The disadvantage of these pre-compressed sealing tapes is that the rate of expansion of the foam strip depends on the ambient temperature. This leads to problems during installation, since the expansion takes place so quickly at warm temperatures that the time to install the window or door is too short after the sealing tape has been affixed.
The craftsman has to hurry after applying the sealing tape, which greatly increases the error rate. In addition, when the window or door is installed, the partially decompressed foam strip can transfer the load. At low temperatures, the strongly delayed recovery leads to a delay in sealing. In addition, pre-compressed sealing tapes are only suitable for a limited range of joint widths. For this reason, several dimensions of pre-compressed sealing tapes must always be kept in stock on a construction site.
This leads to increased space and material requirements and increases the risk that an unsuitable sealing tape will be selected for a given joint. Another disadvantage is that the sealing properties of the foam with respect to the wall are only limited, since the seal is only based on the expansion of the foam and the associated pressure against the wall.
Date Recue/Date Received 2020-09-14

2 A resilient sealing tape is known from EP 1 959 064 Al. The elastically resilient sealing tape has an elastically resilient foam strip which is held in a compressed state by a detachable seam made of at least one thread. The foam strip is inserted into the joint to be sealed and the foam strip is released by loosening the seam. The seam can be unintentionally loosened during insertion and the foam strip can slip when loosening the seam, which has a negative effect on the seal.
A ready-made wedge-shaped sealing strand for construction purposes is known from DE 296 13 232 Ui. The sealing strand made of a flexible plastic material can be pressed into the area to be sealed. The disadvantage here is that the sealing strand can be pressed into narrow joints only with difficulty due to the flexible plastic material.
The present invention is thus based on the problem of providing an improved sealing element with which joints in buildings, in particular joints between windows and doors and the adjacent masonry, can be sealed quickly, permanently and reliably.
In particular, the sealing element should be applicable to materials commonly used in the construction sector, such as masonry, concrete, wood, plastic or metal, and should have good adhesive or sealing properties.
Furthermore, the sealing element should be suitable for sealing joints in various areas of application and of different widths and uneven or non-uniform surfaces.
In addition, the sealing element should be able to be optimized for individual technical and aesthetic requirements without restrictions in the sealing function.
This problem is solved by a sealing strip which has the features specified in claim 1.
Advantageous embodiments of the invention are specified in further claims. The sealing of a joint using a sealing strip according to the invention is achieved by the method according to the invention, which has the method steps specified in claim 22.
Thus, the invention relates to a sealing strip for sealing joints, preferably in the construction sector, in particular for sealing joints between windows or doors and masonry, said sealing strip having an elongated and preferably wedge-shaped base body, which is delimited by two preferably symmetrical cheek sides and at least one front side and is made of a deformable material, preferably a foam, characterized in Date Recue/Date Received 2020-09-14

3 that the sealing strip comprises at least one structural element, which preferably extends over the majority of the length of the sealing strip, is at least partially arranged in the base body, and is made of a dimensionally stable material, by which the sealing strip can be mechanically loaded and can be pressed into the joint. The structural element can be arranged in the base body or partially in the base body.
The invention also relates to a sealing strip for sealing joints, preferably in the construction sector, in particular for sealing joints between windows or doors and masonry, said sealing strip having an elongated and preferably wedge-shaped base body, which is delimited by two preferably symmetrical cheek sides and at least one front side and is made of a deformable material, preferably a foam, characterized in that the sealing strip comprises at least one structural element, which preferably extends over the majority of the length of the sealing strip, is at least partially arranged on the base body, and is made of a dimensionally stable material, by which the sealing strip can be mechanically loaded and can be pressed into the joint. The structural element can be arranged on the base body or partially on the base body.
The invention also relates to a method for sealing a joint, in particular a joint between windows or doors and masonry, using a sealing strip according to the invention, wherein: (a) the sealing strip is arranged along the joint and, if necessary, is cut to the required length; and (b) the sealing strip is pressed into the interior of the joint by direct or indirect mechanical loading of the structural element along the entire length.
In addition, the invention relates to the use of the sealing strip according to the invention for sealing a joint between masonry and a window or a door.
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 elongated and preferably wedge-shaped base body which is delimited by two, preferably mutually symmetrical, cheek sides and by at least one front side and which is made of a deformable material, preferably a foam. The deformable main body enables an optimal adaptation and thus an optimized seal against the uneven surfaces and different joint widths.
According to the invention, the sealing strip comprises at least one structural element which preferably extends over the greater part of the length of the sealing strip and is at least partially arranged in or on the base body. Due to the structural element made of a Date Recue/Date Received 2020-09-14

4 dimensionally stable material, the sealing strip can be loaded mechanically and pressed into the joint between the window or door and the masonry. Due to its dimensional stability, the structural element can absorb mechanical loads well, in contrast to the deformable base body. This facilitates the insertion of the sealing strip and accelerates the insertion process. In addition, the sealing strip can be inserted precisely along the depth of the joint.
In a particularly preferred embodiment, on at least one cheek side, more preferably on both cheek sides, each an adhesive layer, which preferably extends along the entire io sealing strip, is arranged. The adhesive layer can partially or completely cover one or both cheek sides. The adhesive layer can be applied with or without an associated thread fabric or longitudinal reinforcement. The adhesive layer is used for optimal and double-sided adhesion of the sealing strip, for example to the masonry and the window or door. In a preferred embodiment, the cheek sides of the base body are at least partially covered by a film strip. The film strip reduces the friction between the sealing strip and window or door and masonry. This makes it easier to insert the sealing strip into the joint.
In a further preferred embodiment, a protrusion is formed on the film strip, which at least partially covers the adhesive layer, optionally the protective film arranged on the adhesive layer. This prevents the adhesive layer, possibly the protective film arranged thereon, from being accidentally torn off or torn open while the sealing strip is being inserted into the joint.
In a further preferred embodiment, the base body has a skin-like layer along the cheek sides, which facilitates the insertion of the sealing strip into the joint.
The skin-like layer is preferably implemented by a skin-forming foam, more preferably the foam of the base body.
In a particularly preferred embodiment, the adhesive layers on the cheek sides are coated by a removable protective film, a removable protective layer or a film strip. This prevents sticking before or during the insertion of the sealing strip into the joint. In a further particularly preferred embodiment, film strips each cover the corresponding adhesive layer. In this embodiment, the film strips preferably each have a tear seam, a slit or a perforation, in particular a slit or a perforation, along the base body so that at least the part of the film strip covering the adhesive layer can be peeled off. Particularly Date Recue/Date Received 2020-09-14 preferably, the film strips covering the cheek sides each have a gripping section which protrudes beyond the cheek sides and at which the part of the film strip to be pulled off can be easily gripped. A tear seam with a thread can be formed, for example, as described in EP 1 959 064 Al. As adhesives, the known adhesives are suitable, for

5 example adhesives based on methacrylate, as described in DE 296 13 232 Ui. The protective film is preferably a siliconized film. The film strip or strips can consist of the same material as the protective film. The film strip or strips can additionally function as the protective film. An example is shown in Fig. id.
io In a particularly preferred embodiment, the front side of the base body of the sealing strip has a cross section in the shape of a circle segment or an ellipse segment or a cross section that is convex with respect to the cheek sides. This shape enables optimal contact with any subsequent sealing joint. In a preferred embodiment, the front side is covered by a cover strip, coating or skin-forming layer and/or is painted in color. This allows an adaptation to additional aesthetic and/or technical conditions, such as increased weather resistance or fire resistance for a desired application.
The front side of the base body, if necessary the cover strip, is preferably driving rain-tight or airtight in accordance with DIN 18542/ENio27. In the present case, driving rain-tight means tight, in particular to a pressure of more than 600 Pa.
In a particularly preferred embodiment, the sealing strip can be rolled up.
This allows the elongated sealing strip to be transported and stored in a space-saving manner. The base body is preferably compressed, which also enables space-saving transport and storage.
According to the invention, the base body is made of a deformable material and the structural element is made of a dimensionally stable material. The terms "deformable"
and "dimensionally stable" are used herein as they are usually understood by a person skilled in the art. The base body and the structural element are made of different materials, the material of the base body being more deformable than the material of the structural element.
The base body is preferably made of a foam, rubber (caoutchouc), silicone or a combination thereof. The foams used are preferably soft open-, partially open-or closed-cell foams, in particular based on polyolefin, PVC, rubber, EPDM or Date Recue/Date Received 2020-09-14

6 polyurethane (PU) or combinations thereof. Silicone foams can also be used.
Polypropylene (PP), polyethylene (PE), or PVC foams, or combinations thereof, are particularly suitable. The foam material is preferably not impregnated.
Particularly suitable rubber materials are elastomers such as natural, isoprene, styrene-butadiene rubbers, or combinations thereof. Common silicones are suitable as silicone materials.
The structural element or elements are preferably made of a hard foam, cardboard, plastic, metal, wood, a scrim, a plastic fabric or a combination thereof.
Plastics used with preference are polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyamide or polycarbonate. A scrim or plastic fabric can be coated with an epoxy resin in order to obtain or increase the desired dimensional stability.
Sealing strips according to the invention are preferably suitable for sealing joints with joint widths between 3mm and 200MM, preferably 3mm and i5omm, even more preferably 3mm and io omm, and most preferably between 4mm and 60mm.
Preferably a single sealing strip or at least a small number of differently dimensioned sealing strips can 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 4 to 300 mm (width). In particular, the sealing strip has a width of 6 to 250 mm, preferably 10 to 250 mm or 20 to 250 mm.
The volume of the structural element is preferably a maximum of 20%, more preferably a maximum of 12%, particularly preferably a maximum of 7% of the volume of the base body. This enables good mechanical stability with simultaneous optimal adaptation to a joint by the sealing strip.
In a further preferred embodiment, the structural element is made from a closed-cell foam material and the base body is made from an open-cell foam material. The closed-cell foam material here has a higher dimensional stability than the open-cell foam material of the base body.
In a particularly preferred embodiment, the structural element has a density of at least 8o kg/m3, preferably at least loo kg/m3 (in accordance with DIN EN ISO 845).
The structural element is preferably made of a material having a higher density than the base body. The density of the structural element is particularly preferably at least one Date Recue/Date Received 2020-09-14

7 and a half times, preferably at least twice, more preferably at least three times the density of the base body (according to DIN EN ISO 845).
In a further preferred embodiment, the structural element has a tensile strength of at least 20N. This ensures adequate mechanical dimensional stability of the structural element when it is pressed in. A test specimen being 2 mm thick, 30 mm wide and 200 mm long is used to determine the tensile strength. The measuring speed is 100 mm/min. Prior to the tensile test, the test specimens are conditioned for at least 20 hours at a temperature of 23 C and a relative humidity of 30% to 70%.
In a particularly preferred embodiment, the structural element is permanently glued to the base body or anchored therein. This prevents unintentional detachment of the structural element from the base body during the pressing in.
In a preferred embodiment, a sealing profile is arranged on the front side.
The sealing profile can be glued to the base body. The sealing profile is preferably made of an adaptable material, so that the joint is closed in a visually appealing and flush manner after the sealing strip has been pressed in by the sealing profile.
In a particularly preferred embodiment, the structural element is arranged on the base body in such a way that it at least partially covers it along one cheek side.
An adhesive layer is preferably arranged on the structural element on the side facing away from the base body.
The structural element has a shape which enables the structural element to be pressed into the joint to be sealed. Suitable shapes are, for example, elongated or oval shapes.
An elongated shape of the structural element is particularly preferred. In a preferred embodiment, the structural element is configured as an elongated and flexible strip.
For improved flexibility, the structural element preferably has tapers or holes or recesses along the sealing strip. The term "flexible" describes the stability of the structural element in the longitudinal direction of the sealing strip.
Examples of a flexible structural element are shown in Figures 2f and 2g.
In a particularly preferred embodiment, several structural elements, preferably arranged periodically along the sealing strip, are provided. This reduces the cost of materials and improves the flexibility of the sealing strip.
Date Recue/Date Received 2020-09-14

8 The production of the sealing strip is not subject to any particular restrictions and is carried out using methods known to the person skilled in the art. The sealing strip is preferably produced by extrusion, particularly preferably by co-extrusion, lamination or by assembly.
Using a sealing strip according to the invention, a joint, in particular a joint in the construction area between a window or door and a masonry or woodwork, can be sealed by a method which is also according to the invention. Here:
io (a) the sealing strip is arranged along the joint and optionally cut to the required length; and (b) the sealing strip is pressed into the interior of the joint along the entire length by direct or indirect mechanical loading of the structural element.
In a preferred embodiment, (c) the adhesive layers are each glued to the masonry and the window or door.
In a particularly preferred embodiment of the method, the adhesive layers are glued to the masonry and the window or door by pulling off a removable protective film or a removable protective layer.
The method is preferably carried out by pressing the sealing strip into the joint by hand, using an application aid or using a standard tool, for example a hammer, a spatula or a screwdriver.
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 subject matter of this invention.
In a particularly preferred embodiment of the sealing strip according to the invention, the base body is substantially wedge-shaped, with one cheek side and the front side being oriented substantially perpendicular to one another. The structural element is preferably arranged on the base body in such a way that the cheek side, which is oriented substantially perpendicular to the front side, and the structural element form one side of the sealing strip. An adhesive layer can be arranged on the structural element. An adhesive layer can also be arranged on the other cheek side.
Date Recue/Date Received 2020-09-14

9 In a further preferred embodiment of the sealing strip according to the invention, the base body comprises a further front side, in addition to the two cheek sides and the front side. The structural element is preferably arranged on the base body in such a way that one cheek side and the structural element form one side of the sealing strip. An adhesive layer can be arranged on the structural element. An adhesive layer can also be arranged on the other cheek side.
Embodiments of the invention are described hereinafter.
1. A sealing strip for sealing joints, preferably in the construction sector, in particular for sealing joints between windows or doors and masonry, said sealing strip having an elongated and preferably wedge-shaped base body, which is delimited by two preferably symmetrical cheek sides and at least one front side, and is made of a deformable material, preferably a foam, characterized in that the sealing strip comprises at least one structural element, which preferably extends over the majority of the length of the sealing strip, is at least partially arranged in or on the base body, and is made of a dimensionally stable material, by which the sealing strip can be mechanically loaded and can be pressed into the joint.
2. The sealing strip according to embodiment 1, characterized in that on at least one cheek side, preferably on both cheek sides, an adhesive layer is arranged, and/or that the cheek sides are at least partially covered by a film strip.
3. The sealing strip according to embodiment 2, characterized in that a protrusion, which at least partially covers the adhesive layer, is formed on the film strip, or that a gripping section protruding beyond the cheek sides is formed on the film strip.
4. The sealing strip according to embodiment 1, 2 or 3, characterized in that the base body is delimited along the cheek sides by a skin-like layer which facilitates insertion of the sealing strip into a joint.
5. The sealing strip according to one of the embodiments 2 to 4, characterized in that the adhesive layers are coated by a removable protective film or a removable protective layer, or that the film strip covers the adhesive layers in order to prevent accidental sticking.
Date Recue/Date Received 2020-09-14 6. The sealing strip according to embodiment 5, characterized in that the film strip has a tear seam.
7. The sealing strip according to one of the embodiments 1 to 6, characterized in that 5 the front side preferably has a circular segment-shaped or elliptical segment-shaped cross section and/or is at least partially covered by a cover strip, and/or that the front side is painted in color.
8. The sealing strip according to embodiment 7, characterized in that the front side,

10 and optionally the cover strip, is driving rain-tight or airtight according to DIN
18542/EN1027, and/or that the base body is driving rain-tight or airtight according to DIN 18542/FM027.
9. The sealing strip according to one of the embodiments 1 to 8, characterized in that the sealing strip can be rolled up, the base body preferably being compressed.
10. The sealing strip according to one of the embodiments 1 to 9, characterized in that the structural element is made of a hard foam, cardboard, plastic, metal, a scrim, a plastic fabric or a combination thereof, and/or that the base body is made of soft foam, rubber, silicone or a combination thereof.
ii. The sealing strip according to one of the embodiments 1 to 10, characterized in that the sealing strip is suitable for sealing joints with joint widths (FB) between 3mm and 200mm, preferably 3mm and i5omm, even more preferably 3mm and loomm, and most preferably between 4mm and 60mm.
12. The sealing strip according to one of the embodiments 1 to 11, characterized in that the volume of the structural element is a maximum of 20%, preferably a maximum of 12%, particularly preferably a maximum of 7% of the volume of the base body.
13. The sealing strip according to one of the embodiments 1 to 12, characterized in that the structural element is made from a closed-cell foam material and the base body is made from an open-cell foam material.
Date Recue/Date Received 2020-09-14

11 14. The sealing strip according to one of the embodiments 1 to 13, characterized in that the structural element has a density of at least 8o kg/m3, preferably at least kg/m3.
15. The sealing strip according to embodiment 14, characterized in that the density of the structural element is at least one and a half times, preferably at least twice, more preferably at least three times the density of the base body.
16. The sealing strip according to one of the embodiments 1 to 15, characterized in that the structural element has a tear strength of at least 20N.
17. The sealing strip according to one of the embodiments 1 to 16, characterized in that the structural element is permanently glued to the base body or anchored therein.
18. The sealing strip according to one of the embodiments 1 to 17, characterized in that a sealing profile is arranged on the front side.
19. The sealing strip according to one of the embodiments 1 to 18, characterized in that the structural element is arranged on the base body in such a way that it at least partially covers it along one cheek side.
20. The sealing strip according to embodiment 19, characterized in that an adhesive layer is arranged on the structural element on the side facing away from the base body.
21. The sealing strip according to one of the embodiments 1 to 20, characterized in that the sealing strip is produced by extrusion, preferably by co-extrusion or by assembly.
22. A method for sealing a joint, in particular a joint between windows or doors and masonry, using a sealing strip according to one of the embodiments 1 to 21, wherein (a) the sealing strip is arranged along the joint and optionally cut to the required length; and (b) the sealing strip is pressed into the interior of the joint along the entire length by direct or indirect mechanical loading of the structural element.
Date Recue/Date Received 2020-09-14

12 23. The method according to embodiment 22, characterized in that the adhesive layers are each glued to the masonry and the window or the door, and/or the gluing of the adhesive layers to the masonry and the window or the door is triggered by peeling off a removable protective film or a removable protective layer.
24. The method according to embodiment 22, characterized in that the sealing strip is pressed into the joint by hand, using an application aid or using a standard tool.
25. Use of a sealing strip according to one of the embodiments 1 to 21 for sealing a joint between masonry and a window or a door.
The invention is explained in more detail hereinafter with reference to drawings. In the drawings, same reference signs have the same meaning. Therein:
Fig. ia shows a sealing strip 1 according to the invention in a first embodiment;
Fig. ib shows a second embodiment of a sealing strip 1 according to the invention;
Fig. ic shows a third embodiment of a sealing strip 1 according to the invention;
Fig. id shows a fourth embodiment of a sealing strip 1 according to the invention;
Fig. 2a shows a fifth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 2b shows a sixth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 2c shows a seventh embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 2d shows an eighth embodiment of a sealing strip 1 according to the invention in a cross section;
Date Recue/Date Received 2020-09-14

13 Fig. 2e shows a ninth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 2f shows the sealing strip 1 from Fig. ib in a longitudinal section;
Fig. 2g shows the sealing strip 1 from Fig. ib in a longitudinal section in an embodiment according to the invention with several structural elements 12, 12', 12";
Fig. 2h the structural element 12 from Fig. 2e in a further embodiment;
Fig. 3a shows a tenth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 3b shows an eleventh embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 3c shows a twelfth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 3d shows a thirteenth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 3e shows a fourteenth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 3f shows a fifteenth embodiment of a sealing strip 1 according to the invention in a cross section;
Fig. 3g shows a sixteenth embodiment of a sealing strip 1 according to the invention in across section;
Fig. 4a shows the sealing strip 1 from Fig. id with gripping sections 143, 143' formed on the film strip 14, 14' Fig. 4b shows the sealing strip 1 from Fig. 4a with a cover strip 15;
Date Recue/Date Received 2020-09-14

14 Fig 5 shows a sealing strip 1 according to the invention in a joint 7;
Fig. 6a shows a joint 7 between a schematic masonry 8 and a schematic window or door 9 with a sealing strip 1 aligned along it;
Fig. 6b shows the joint 7 from Fig. 6a while the sealing strip 1 is being pressed into it;
Fig. 6c shows the joint 7 from Fig. 6a with the sealing strip 1 pressed into it and protruding gripping section 143, 143';
Fig. 6d shows the joint 7 from Fig. 6a sealed with a sealing strip 1;
Fig. ia shows a cross section of a sealing strip 1 according to the invention.
The sealing strip 1 consists of a base body 11, which is delimited by two cheek sides in, in' and a front side 112. The sealing strip 1 has a wedge-shaped cross section. In the base body ii, a structural element 12 is arranged. The coordinate system shown defines the orientation of the terms width (B), length (L) and height/depth (H) used in this application.
Fig. ib shows a second embodiment of a sealing strip 1 according to the invention. In addition to the components known from Fig. ia, an adhesive layer 13, 13' each is arranged on the cheek sides in, in'. The adhesive layers 13, 13' cover the corresponding cheek sides in, in' over a large area along the length.
Fig. ic shows a third embodiment of a sealing strip according to the invention. The cheek sides in, in' are partially covered by a film strip 14, 14' each. A
protrusion 142, 142" is formed on each of the film strips 14, 14", which partially covers the adhesive layer 13, 13'. In the embodiment shown, the structural element 12 has a T-shaped cross section.
Fig. id shows a fourth embodiment of a sealing strip 1 according to the invention. The film strips 14, 14 'are configured in such a way that both the cheek sides in, in' and the adhesive layers 13, 13' arranged on it are completely covered. A tear seam 141 runs along each of the film strips 14, 14', by which the upper part of the film strips 14, 14' can be torn off.
Date Recue/Date Received 2020-09-14 Fig. 2a shows a fifth embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the structural element 12 has a wedge-shaped cross section, analogous to the cross section of the base body ii. The base body 11 is delimited by two cheek sides in, 111' and a front side 112. An adhesive layer 13, 13' is 5 arranged on each of the two cheek sides in, in'.
Fig. 2b shows a sixth embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, part of the structural element 12 protrudes the base body 11.
Fig. 2c shows a seventh embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the cheek sides have in, in' have two different inclined sections. This simplifies the introduction of the sealing strip 1 into a joint.
Fig. 2d shows an eighth embodiment of a sealing strip 1 according to the invention in a cross section. In addition to the two cheek sides in, in' and the front side 112, the base body 11 is also delimited by a second front side 113.
Fig. 2e shows a ninth embodiment of a sealing strip 1 according to the invention in a cross section. The cheek sides in, in' are configured to be curved.
Fig. 2f shows the sealing strip 1 from Fig. ib in a longitudinal section. The structural element 12 extends over the entire length of the sealing strip 1, with tapers 121 being arranged along the structural element 12 for better flexibility.
Fig. 2g shows the sealing strip 1 from Fig. ib in a longitudinal section in a further embodiment according to the invention with several structural elements 12, 12', 12".
The individual structural elements 12, 12', 12" can be connected to one another via threads, wires or a fabric.
Fig. 2h shows the structural element 12 from Fig. 2e in a further embodiment.
The structural element has soft components 122, 122' and hard components 123, 123' in sections. This allows the mechanical properties of the structural element 12 to be optimized.
Date Recue/Date Received 2020-09-14 Fig. 3a shows a tenth embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, the structural element 12 is configured as an oval zone with suitable material properties within the base body ii. The base body 11 is delimited by two cheek sides in, 111' and a front side 112. An adhesive layer 13, 13' is arranged on each of the two cheek sides in, in'.
Fig.3b shows an eleventh embodiment of a sealing strip 1 according to the invention in a cross section. In the embodiment shown, a structural element 12 is arranged within the base body 11. The base body 11 is delimited by two cheek sides in, in' and a front side 112. An adhesive layer 13, 13' is arranged on each of the two cheek sides in, in'. A
sealing profile 16 is arranged on the front side 112 for lateral sealing against the masonry and the door or window.
Fig. 3c shows a twelfth embodiment of a sealing strip 1 according to the invention in a cross section. Two structural elements 12, 12' are arranged in the base body 11. The base body 11 is delimited by two cheek sides in, in' and a front side 112. An adhesive layer 13, 13' is arranged on each of the two cheek sides in, in'.
Fig. 3d shows a thirteenth embodiment of a sealing strip 1 according to the invention in a cross section. The base body 11 is wedge-shaped, the cheek side in and the front side 112 being aligned approximately perpendicular to one another. A structural element 12 is arranged in the base body 11. An adhesive layer 13, 13' is arranged on each of the two cheek sides in, in'.
Fig. 3e shows a fourteenth embodiment of a sealing strip 1 according to the invention in a cross section. The base body 11 is wedge-shaped, the cheek side in and the front side 112 being aligned approximately perpendicular to one another. The structural element 12 is arranged on the base body 11 in such a way that the cheek side in and the structural element 12 form one side of the sealing strip 1. An adhesive layer 13 is arranged on the structural element 12. Furthermore, an adhesive layer 13' is arranged on the cheek side in'.
Fig. 3f shows a fifteenth embodiment of a sealing strip 1 according to the invention in a cross section. This embodiment corresponds to the embodiment of Fig. 3d, except that the front side 112 is configured concave against the base body 11.
Date Recue/Date Received 2020-09-14 Fig. 3g shows a sixteenth embodiment of a sealing strip 1 according to the invention in a cross section. In addition to the two cheek sides in, in' and the front side 112, the base body 11 is also delimited by a second front side 113. The structural element 12 is arranged on the base body 11 in such a way that the cheek side in and the structural element 12 form one side of the sealing strip 1. An adhesive layer 13 is arranged on the structural element 12. Furthermore, an adhesive layer 13' is arranged on the cheek side 111'.
Fig. 4a shows the sealing strip 1 from Fig. id with gripping sections 143, 143' formed on io the film strip 14, 14'. The film strip 14, 14' can be easily grasped by hand at the gripping sections 143, 143', so that it can be peeled off along the tear seam 141, whereby the adhesive layer 13, 13' is exposed.
Fig. 4h shows the sealing strip 1 from Fig. 4a with a cover strip 15. The cover strip 15 can have an aesthetic or technical function.
Fig. 5 shows a sealing strip 1 according to the invention in a joint 7. The base body 11 is at least partially compressed, as a result of which the cheek sides in, in' 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, which improves the sealing and adhesion of the sealing strip 1.
Fig. 6a to Fig. 6d illustrate the method according to the invention for sealing a joint 7 using a sealing strip 1 according to the invention.
Fig. 6a shows a joint 7 between a schematic masonry 8 and a schematic window or door 9 with a sealing strip 1 aligned along it.
Fig. 6b shows the joint 7 from Fig. 6a while the sealing strip 1 is being pressed into it. A
force is exerted on the structural element 12 by mechanical loading, as a result of which the sealing strip 1 is pressed into the joint 7. The film strips 14, 14' reduce the frictional forces between the base body 11 and the masonry 8 and the window or door 9.
Fig. 6c shows the joint 7 from Fig. 6a with the sealing strip 1 pressed into it and protruding gripping section 143, 143'. After pressing in, preferably only the gripping Date Recue/Date Received 2020-09-14 sections 143, 143' protrude from the joint 7. The gripping sections 143, 143' are gripped by hand and the corresponding film strip 14, 14' is at least partially removed.
Fig. 6d shows the joint 7 from Fig. 6a sealed with a sealing strip 1. By peeling off the film strips 14, 14', the adhesive layers 13, 13' are exposed and stick to the masonry 8 and the window or door 9.
Any combination of the embodiments of the sealing strip described in the figures and the description is also in accordance with the invention. In particular, individual features of the embodiments 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.
Further preferred embodiments of the invention are described below.
1. A sealing strip (1) for sealing joints (7), preferably in the construction sector, in particular for sealing joints between windows or doors (9) and masonry (8), said sealing strip having an elongated and preferably wedge-shaped base body (11), which is preferably delimited by two mutually symmetrical cheek sides (iii, in') and at least a front side (112) and is made of a deformable material, preferably a foam, characterized in that the sealing strip (1) comprises a structural element (12) which extends at least preferably over the majority of the length of the sealing strip (1), is arranged at least partially in the base body (1) and is made of a dimensionally stable material, by which the sealing strip (1) can be mechanically loaded and pressed into the joint (7).
2. The sealing strip (1) according to embodiment 1, characterized in that an adhesive layer (13, 13') is arranged on at least one cheek side (in, nil preferably on both cheek sides (iii, in'), and/or that the cheek sides (in, iii') are at least partially covered by a film strip (14, 14').
3. The sealing strip (1) according to embodiment 2, characterized in that a protrusion (142, 1421 which at least partially covers the adhesive layer (13, 13'), is formed on the film strip (14, 141 or that on the film strip (14, 14') a gripping section (143, 143') protruding over the cheek sides (in, in') is formed.
Date Recue/Date Received 2020-09-14 4. The sealing strip (1) according to embodiment 1, 2 or 3, characterized in that the base body (11) is delimited along the cheek sides (in, 111') by a skin-like layer which facilitates the insertion of the sealing strip (1) into a joint (7).
5. The sealing strip (1) according to one of the embodiments 2 to 4, characterized in that the adhesive layers (13, 13') are covered by a removable protective film or a removable protective layer, or that the film strip (14, 14') covers the adhesive layers (13, 13') in order to prevent unwanted sticking.
6. The sealing strip (1) according to embodiment 5, characterized in that the film strip (14, 14') has a tear seam (141).
7. The sealing strip (1) according to one of the embodiments 1 to 6, characterized in that the front side (112) preferably has a circular segment-shaped or elliptical segment-shaped cross section and/or is at least partially covered by a cover strip

(15), and/or that the front side (112) is painted in color.
8. The sealing strip (1) according to embodiment 7, characterized in that the front side (112) and optionally the cover strip (15) is driving rain-tight or airtight according to DIN 18542/EN1o27, and/or that the base body is driving rain-tight or airtight according to DIN 18542/EN1027.
9. The sealing strip (1) according to one of the embodiments 1 to 8, characterized in that the sealing strip (1) can be rolled up, the base body (11) preferably being compressed.
10. The sealing strip (1) according to one of the embodiments 1 to 9, characterized in that the structural element (12) is made of a hard foam, cardboard, plastic, metal, a scrim, a plastic fabric or a combination thereof, and/or that the base body is made of soft foam, rubber, silicone or a combination thereof.
11. The sealing strip (1) according to one of the embodiments 1 to 10, characterized in that the sealing strip is suitable for sealing joints (7) with joint widths (FB) between 3mm and 200MM, preferably 3mm and 150mm, more preferably 3mm and loomm, and most preferably between 4mm and 60mm.
Date Recue/Date Received 2020-09-14 12. A method for sealing a joint (7), in particular a joint between windows or doors (9) and masonry (8), using a sealing strip (1) according to one of the embodiments 1 to ii, wherein (a) the sealing strip (1) is arranged along the joint (7) and optionally is cut to the required length; and (b) the sealing strip (1) is pressed into the interior of 5 the joint (7) along the entire length by direct or indirect mechanical loading of the structural element (12).
13. The method according to embodiment 12, characterized in that the adhesive layers (13, 13') are each glued to the masonry (8) and the window or door (9), and/or the 10 gluing of the adhesive layers (13, 13') to the masonry (8) and the window or door (9) is triggered by peeling off a removable protective film or a removable protective layer (14, 14').
14. The method according to embodiment 13, characterized in that the sealing strip (1) 15 is pressed into the joint (7) by hand, using an application aid or using a standard tool.
15. Use of a sealing strip (1) according to one of the embodiments 1 to 11 for sealing a joint (7) between a masonry (8) and a window or a door (9).
List of reference signs 1 Sealing strip 11 Base body 111, ill' Cheek side 112 Front side 113 Second front side 12, 12', 12" Structural element 121 Taper 122, 122' Soft component 123, 123' Hard component 13, 13' Adhesive layer 14, 14' Film strip 141 Tear seam 142, 142' Protrusion Date Recue/Date Received 2020-09-14 143, 143' Gripping section 15 Cover strip

16 Sealing profile 7 Joint 8 Masonry 9 Window or door FB Joint width H Height/depth B Width io L Length Date Recue/Date Received 2020-09-14

Claims (24)

22

1. A sealing strip (1) for sealing joints (7), preferably in the construction sector, in particular for sealing joints between windows or doors (9) and masonry (8), said sealing strip having an elongated and preferably wedge-shaped base body (11), which is delimited by two preferably symmetrical cheek sides (111, 111') and at least one front side (112), and is made of a deformable material, preferably a foam, characterized in that the sealing strip (1) comprises at least one structural element (12), which preferably extends over the majority of the length of the sealing strip (1), is at least partially arranged in or on the base body (1), and is made of a dimensionally stable material, by which the sealing strip (1) can be mechanically loaded and can be pressed into the joint (7).

2. The sealing strip (1) according to claim 1, characterized in that on at least one cheek side (111, 111'), preferably on both cheek sides (111, 111'), an adhesive layer (13, 13') is arranged, and/or that the cheek sides (111, 111') are at least partially covered by a film strip (14, 14').

3. The sealing strip (1) according to claim 2, characterized in that a protrusion (142, 1421 which at least partially covers the adhesive layer (13, 13'), is formed on the film strip (14, 141 or that a gripping section (143, 143') protruding beyond the cheek sides (111, 111') is formed on the film strip (14, 14').

4. The sealing strip (1) according to claim 1, 2 or 3, characterized in that the base body (11) is delimited along the cheek sides (111, 111') by a skin-like layer which facilitates the insertion of the sealing strip (1) into a joint (7).

5. The sealing strip (1) according to one of the claims 2 to 4, characterized in that the adhesive layers (13, 13') are coated by a removable protective film or a removable protective layer, or that the film strip (14, 14') covers the adhesive layers (13, 13') in order to prevent accidental sticking.

6. The sealing strip (1) according to claim 5, characterized in that the film strip (14, 14') has a tear seam (141).
Date Recue/Date Received 2020-09-14

7. The sealing strip (1) according to one of the claims 1 to 6, characterized in that the front side (112) preferably has a circular segment-shaped or elliptical segment-shaped cross section and/or is at least partially covered by a cover strip (15), and/or that the front side (112) is painted in color.

8. The sealing strip (1) according to claim 7, characterized in that the front side (112), and optionally the cover strip (15), is driving rain-tight or airtight according to DIN 18542/EN1027, and/or that the base body is driving rain-tight or airtight according to DIN 18542/EN1o27.

9. The sealing strip (1) according to one of the claims 1 to 8, characterized in that the sealing strip (1) can be rolled up, the base body (11) preferably being compressed.

10. The sealing strip (1) according to one of the claims 1 to 9, characterized in that the structural element (12) is made of a hard foam, cardboard, plastic, metal, a scrim, a plastic fabric or a combination thereof, and/or that the base body (11) is made of soft foam, rubber, silicone or a combination thereof.

11. The sealing strip (1) according to one of the claims 1 to 10, characterized in that the sealing strip is suitable for sealing joints (7) with joint widths (FB) between 3mm and 200MM, preferably 3mm and lsomm, even more preferably 3mm and loomm, and most preferably between 4mm and 60mm.

12. The sealing strip (1) according to one of the claims 1 to 11, characterized in that the volume of the structural element (12) is a maximum of 20%, preferably a maximum of 12%, particularly preferably a maximum of 7% of the volume of the base body (11).

13. The sealing strip (1) according to one of the claims 1 to 12, characterized in that the structural element (12) is made of a closed-cell foam material and the base body (11) is made of an open-cell foam material.

14. The sealing strip (1) according to one of the claims 1 to 13, characterized in that the structural element (12) has a density of at least 8o kg/m3, preferably at least 100 kg/m3.
Date Recue/Date Received 2020-09-14

15. The sealing strip (1) according to claim 14, characterized in that the density of the structural element (12) is at least one and a half times, preferably at least twice, more preferably at least three times the density of the base body (11).

16. The sealing strip (1) according to one of the claims 1 to 15, characterized in that the structural element (12) has a tear strength of at least 20N.

17. The sealing strip (1) according to one of the claims 1 to 16, characterized in that the structural element (12) is permanently glued to the base body (11) or anchored therein.

18. The sealing strip (1) according to one of the claims 1 to 17, characterized in that a sealing profile (16) is arranged on the front side (112).

19. The sealing strip (1) according to one of the claims 1 to 18, characterized in that the structural element (12) is arranged on the base body (11) in such a way that it at least partially covers it along one cheek side (111).

20. The sealing strip (1) according to claim 19, characterized in that an adhesive layer (13) is arranged on the structural element (12) on the side facing away from the base body (la

21. The sealing strip (1) according to one of the claims 1 to 20, characterized in that the sealing strip (1) is produced by extrusion, preferably by co-extrusion or by assembly.

22. A method for sealing a joint (7), in particular a joint between windows or doors (9) and masonry (8), using a sealing strip (1) according to one of the claims 1 to 21, wherein (a) the sealing strip (1) is arranged along the joint (7) and optionally cut to the required length; and (b) the sealing strip (1) is pressed into the interior of the joint (7) along the entire length by direct or indirect mechanical loading of the structural element (12).
Date Reçue/Date Received 2020-09-14

23. The method according to claim 22, characterized in that the adhesive layers (13, 13') are each glued to the masonry (8) and the window or the door (9), and/or the gluing of the adhesive layers (13, 13') to the masonry (8) and the window or the door (9) is triggered by peeling off a removable protective film or a removable 5 protective layer (14, 14').

24. The method according to claim 22, characterized in that the sealing strip (1) is pressed into the joint (7) by hand, using an application aid or using a standard tool.
lo 25. Use of a sealing strip (1) according to one of the claims 1 to 21 for sealing a joint (7) between masonry (8) and a window or a door (9).
Date Recue/Date Received 2020-09-14