EP3124712B1 - Compressible joint sealing strip and method for the production thereof - Google Patents

Description

The present invention relates to uses of a compressible joint sealing strip according to claims 1 and 6, a compressible joint sealing strip according to claim 7 and methods for producing a joint sealing strip according to claims 12, 14 and 16.

Compressible joint sealing tapes for sealing against drafts and driving rain are, for example, from DE19641415C2 , the DE 20009674 U1 or the WO 2012/167762 A1 are known and are used in structural engineering for sealing components in particular, for example window and door frames, against masonry, for example an opening in the wall of a building.

A known joint sealing tape comprising foam elements has two longitudinal sides and an upper side adjoining one joint flank, in particular of masonry, when the joint sealing tape is installed and an underside adjoining the opposite joint flank, in particular of the component, when the joint sealing tape is installed, with one or preferably several membrane layers each run in the longitudinal direction between the top and bottom parallel or almost parallel to the long sides between two foam elements.

As is known, the underside of such a joint sealing strip is glued to the component to be sealed, for example a window and door frame. After the component has been installed, for example in a building wall opening, the previously compressed joint sealing tape expands, i.e. it returns elastically, so that the upper side of the joint sealing tape adjoins or lies against the masonry of the building wall opening, and thus seals the component on the masonry of the building wall opening.

If a window is to be replaced in connection with the renovation of an old building, the removed old window frame leaves a recess in the masonry of the building wall opening. When a new window frame is subsequently installed in the building wall opening, known joint sealing tapes often do not ensure adequate sealing in the area of the recess.

DE 20 2014 100478 U1 relates to a sealing tape that is suitable for sealing a recess in a building from a built-in element, for example a window frame, consists essentially of foam material and is provided with incisions and is to be laid in different sealing gap areas that are arranged at an angle to one another. Since the incisions are made parallel to the edge connecting the meeting sealing gap areas in this connection area, the sealing tape fans out in this area and can be guided around the edge of the built-in element in this area. By avoiding unwanted tensile or compressive forces through the incisions, the dimensional accuracy of the sealing tape is ensured in the various sealing gap areas.

DE 298 13 307 U1 discloses a waterbar of soft, preferably open-celled and impregnated foam material bonded to one or opposite surfaces. In the ribs formed as a result, the impregnation weight of the impregnation can deviate from the impregnation weight in the rest of the body. The ribs have the function of ensuring a minimum compression of the joint sealing body if the joint flank is uneven, since the compression of permanently elastic joint sealing bodies is an essential factor for the tightness against water, air and smoke.

DE 10 2008 063371 A1 discloses an elongate molded part for sealing openings in the construction sector, which consists of a foam material that recovers with a delay after compression and has two opposite longitudinal side walls and an underside, the two side walls having different heights in the transverse profile when the molded part is not compressed. The molded part can have one or more incisions in the area of the transitions between the widths of the side walls and the intermediate area. The incisions improve the uniform relaxation of the molded part. The pre-compressed molded part is installed between a window frame and the masonry in such a way that it cannot completely relax again and has an almost rectangular cross-section when installed. In other words, the side walls should have a different degree of compression. The greater the degree of compression, the more the water vapor diffusion coefficient decreases.

EP 2 112 292 A2 discloses a joint sealing tape for sealing an edge area of a component against an adjacent connection area of a building, vehicle or the like, the sealing element extending between a first section and a second section in a width direction and transversely to the width direction in a thickness direction, one each for the edge area and the Connection area has facing installation edge, and the sealing element is profiled so that it has a greater thickness in the region of the first section than in the region of the second section.

From the WO 2009/138311 A1 foam sealing strips are known which have high and low areas, the foam sealing strips being installed between a window frame and the masonry in such a way that they do not relax completely again and have an almost rectangular cross-section when installed.

Based on this state of the art, the object of the invention is to provide new uses for compressible joint sealing tapes and to further develop joint sealing tapes in such a way that they also meet the requirements in terms of impermeability to driving rain, openness to vapor diffusion, thermal insulation and airtightness in the aforementioned case of old building renovation fulfill. In addition, the invention is based on the object of further developing joint sealing tapes in such a way that they can be produced quickly and inexpensively.

This object is achieved by using a compressible joint sealing tape according to claims 1 or 6, with a joint sealing tape according to the preamble of claim 7 by the characterizing features of claim 7 and by Process for the production of a joint sealing strip according to claims 12, 14 or 16 solved. Further developments and advantageous refinements of the invention result from the respective dependent claims and the following description.

The invention relates to the use of a compressible joint sealing strip, in which the joint sealing strip is installed in a joint, the joint having a first joint flank and a second joint flank opposite the first joint flank, the first joint flank having a recess running in the longitudinal direction of the first joint flank, wherein the recess is caused in particular by a previously removed window frame, the joint sealing tape having two longitudinal sides and an upper side adjoining the first joint flank when the joint sealing tape is installed and an underside adjoining the opposite second joint flank when the joint sealing tape is installed, the joint sealing tape comprising foam elements, one or preferably several membrane layers in the longitudinal direction between the top and bottom and parallel or almost parallel to the long sides between two foam elements, wherein the joint sealing tape has only one incision or only incisions, which run longitudinally parallel or almost parallel to the long sides and from the upper side are introduced into a foam element of the joint sealing tape, wherein the incision or incisions are formed in such a way that at least one section of the joint sealing tape expands from a compressed state into the recess of the first joint flank, while at least another section of the joint sealing tape, which is outside of the at least one expanded into the recess Section are adjacent to the not having the recess area of the first joint flank.

Although is from the EP 2 428 632 A1 an embodiment of a joint sealing tape provided with incisions with foam segments lying close to one another, which can each expand independently of one another, is already known, but the incisions provided there run both in the longitudinal direction and in the transverse direction. In addition to the disadvantageously complex production of such joint sealing tapes, the membrane layers provided according to the invention would no longer be intact due to the incisions running in the transverse direction, so that the sealing function would not be ensured. According to the invention, the at least one incision runs exclusively in the longitudinal direction, so that the sealing function can be guaranteed in connection with the at least one membrane running in the longitudinal direction.

It can be advantageous if the joint sealing tape has at least two incisions that run only in the longitudinal direction, parallel or almost parallel to the long sides and are made from the top in one or more than one foam element of the joint sealing tape, which are designed in such a way that at least one between The section of the joint sealing tape that is present with two incisions expands from a compressed state into the recess of the first joint flank, while other sections of the joint sealing tape that lie outside the at least one section expanded into the recess adjoin the area of the first joint flank that does not have the recess.

It can be advantageous if one or more incisions in the uncompressed joint-sealing strip have a length which corresponds to at least ½, preferably %, of the height of the uncompressed joint-sealing strip.

It can be advantageous if no membrane layer is arranged at least in a section between two incisions, preferably in the section that is expanded into the recess.

It can be expedient if at least one membrane layer is arranged in at least one section between two incisions, which is expanded into the recess, and is preferably designed in such a way that it is intact even after the section has been completely expanded.

The invention also relates to the use of a compressible joint sealing tape, in which the joint sealing tape is installed in a joint, the joint having a first joint flank and a second joint flank opposite the first joint flank, the first joint flank having a recess running in the longitudinal direction of the first joint flank, wherein the cutout results in particular from a previously removed window frame, wherein the joint sealing tape has two longitudinal sides and an upper side adjoining the first joint flank when the joint sealing tape is installed and an underside adjoining the opposite second joint flank when the joint sealing tape is installed, the joint sealing tape comprising foam elements, wherein one or preferably more membrane layers each in the longitudinal direction between the top and bottom and parallel or almost parallel to the long sides between two foam elements, with the joint sealing tape on the top having at least one compressible foam projection running only in the longitudinal direction, which is designed in such a way that it can be pushed out of a compressed state into the recess of the first joint flank expands, while at least another portion of the joint sealing tape, which lies outside of the at least one projection expanded into the recess, abuts the region of the first joint flank that does not have the recess.

The invention also relates to a compressible joint sealing tape that comprises foam elements, the joint sealing tape having two longitudinal sides and an upper side adjoining one joint flank when the joint sealing tape is installed and an underside adjoining the opposite joint flank when the joint sealing tape is installed, with one or preferably more membrane layers in each case run in the longitudinal direction between the top and bottom and parallel or almost parallel to the long sides between two foam elements. According to the invention, the joint sealing strip has on the upper side at least one compressible foam projection that only runs in the longitudinal direction and is designed in such a way that it can expand from a compressed state into a recess that may be present in one joint flank, while at least another section of the joint sealing strip, the outside of the at least one projection expanding into the recess is adjacent to the area of the one joint flank that does not have the recess, wherein at least one Projection is formed integrally with the top of the waterbar, wherein the projection has no membrane layer.

It can be advantageous if at least one projection is connected, preferably glued, to the upper side of the joint sealing strip as a separate part.

It can be advantageous if at least one projection is formed in one piece with the upper side of the joint sealing tape.

It can be advantageous if at least one projection has at least one membrane layer running in the longitudinal direction parallel or almost parallel to the longitudinal sides, this preferably running through the foam element and the projection in one piece.

It can be advantageous if the projection provided on the upper side of the joint sealing tape is arranged centrally or eccentrically between the longitudinal sides, with an eccentrically arranged projection preferably terminating with one of the longitudinal sides.

It can be advantageous if at least one membrane layer is a diffusion-tight or preferably a diffusion-open layer, in particular in the form of a film.

However, it can also be advantageous if at least one membrane layer is moisture-variable or moisture-adaptive.

In interaction with the section or projection expanding into a recess of one joint flank, a joint sealing tape is provided, in particular for the renovation of old buildings, with which a secure sealing of joints between assembled components in house construction, in particular between wall openings in an outer wall and window or door frames, is achieved , wherein advantageously no additional joint tapes or backfill materials are required. Since the membrane layers are moisture-variable or moisture-adaptive, the risk of confusion between that side of the joint sealing strip which points inwards when installed and that side of the joint sealing strip which points outwards is advantageously excluded. Advantageously, an outer, middle and inner sealing of the joint between two assembled components can be achieved in one operation. Due to the at least one moisture-variable or moisture-adaptive membrane layer, the desired imperviousness of the joint sealing tape adjusts itself depending on the moisture. The joint sealing tape is therefore an intelligent joint sealing tape and when installed in the joint there is no risk of confusing the inside and outside of the joint sealing tape.

A development of the invention provides that the composition of the membrane layer or membrane layers and/or the arrangement of the membrane layer or membrane layers and/or the number of membrane layers are selected in such a way that the joint sealing tape in the area exposed to an atmosphere with high humidity adjacent is less dense to water vapor than in the area adjacent to a lower humidity atmosphere.

A modified polyamide film can advantageously be used as the moisture-variable membrane layer. Such films are characterized in that their vapor permeability is significantly higher when wet than when dry. The foils therefore have a variable s _d value. An sd value is understood to mean the water vapor diffusion resistance of a material, also referred to as the "diffusion-equivalent air layer thickness". The sd value with the unit "m" is calculated from the layer thickness of the material multiplied by the water vapor diffusion resistance number of the material, the so-called µ value, as defined in DIN EN ISO 12572:2001.

Suitable membrane layers are for example in DE19514420 C1 or the WO 9633321 A1 disclosed as materials with a water vapor diffusion resistance dependent on the ambient humidity. The content of DE19514420 C1 or the WO 9633321 A1 is incorporated by express reference into the disclosure content of the present application, in particular with regard to these materials.

Other suitable membrane layers are, for example, in DE 102008037292 A1 or the WO 2010017947 A2 disclosed as moisture-adaptive functional layers. The content of DE 102008037292 A1 or the WO 2010017947 A2 is incorporated by express reference into the disclosure content of the present application, in particular with regard to these moisture-adaptive functional layers.

It can be advantageous if the joint sealing tape has two long sides and a top edge adjoining one joint flank when the joint sealing tape is installed. and has an underside adjoining the opposite joint flank when the joint sealing strip is installed, the membrane layer or membrane layers running in the longitudinal direction between the top and underside and preferably parallel or almost parallel to the longitudinal sides. The width of the joint sealing tape is therefore the distance between two longitudinal sides.

A development of the invention provides that the composition of the membrane layer or membrane layers and/or the arrangement of the membrane layer or membrane layers and/or the number of membrane layers are selected in such a way that the joint sealing tape in the area exposed to an atmosphere with high humidity adjacent is denser to water vapor than in the area adjacent to a lower humidity atmosphere.

It can be expedient if the joint sealing tape can be used universally for sealing a joint between two assembled components, for example between a structure, in particular masonry, and a frame or the like, in particular a window or door frame. Such a joint sealing strip built into a corresponding joint has the advantage that it has a higher blocking effect on the side or the area that is exposed to a higher diffusion load. This, in turn, has the advantage that when installing the joint sealing strip it is not necessary to pay attention to which of the two longitudinal sides of the joint sealing strip is arranged on the interior side or inwards and which is arranged on the exterior side or on the outside. The installation or laying of the joint sealing tape is therefore independent of the running direction of the tape.

Like barrier layers, the membrane layer or membrane layers can be arranged axially in the joint sealing tape, so that after the installation of the joint sealing tape they are essentially arranged transversely to the direction of diffusion.

It can be expedient if the joint sealing tape is moisture-variable, preferably in such a way that the side that is exposed to the moist atmosphere is always more impermeable to diffusion. As a result, moisture is always transported out of the joint and moisture is prevented from diffusing into the joint.

It can be useful if the joint sealing tape in the after RAL quality association windows and front doors e. V. (RAL guidelines for planning and installing windows and front doors March 2014 ) required typical winter situation works, in which the seal to the interior or to the inside should be tighter than the seal to the outside or to the outside, since in winter interiors have a higher humidity than outside or the outside atmosphere. However, it can be useful if joint sealing tape also works in the typical summer situation where diffusion is reversed and the outdoor environment is more humid.

As a result, the joint can dry out all year round. In this way, the RAL requirement for protection of the so-called connection joint between the structure and, for example, the window frame against external and indoor loads is ensured.

It can be useful if at least one membrane layer is designed in such a way that it has a water vapor diffusion resistance (µ-value) of less than 15 at an average relative humidity of the atmosphere surrounding it of up to 50% and at an average relative humidity of the atmosphere surrounding it of more than 70% has a water vapor diffusion resistance (µ-value) of more than 30.

For certain purposes it can also be advantageous if a joint sealing tape has several different sealing areas, in that the composition of the membrane layer or membrane layers, the arrangement of the membrane layer or membrane layers and/or the number of membrane layers in a sealing area are selected in such a way that the joint sealing tape in the Area adjacent to an atmosphere with high humidity is more dense to water vapor than in the area adjacent to an atmosphere with lower humidity and in another sealing area are chosen such that the joint sealing tape in the area adjacent to an atmosphere with high humidity is less dense to water vapor than in the area bordering an atmosphere with lower humidity.

It can be advantageous if the foam is a predominantly open-cell raw foam.

But it can also be advantageous if the foam is a predominantly closed-cell raw foam, as is the case, for example, in EP 1 600 571 B1 is disclosed as a foam having an air permeability of at most 50 l/m ² s. The content of EP 1 600 571 B1 is incorporated by express reference into the disclosure content of the present application, in particular with regard to the foam disclosed there.

It can be expedient if the foam is an impregnated, preferably a homogeneously impregnated, raw foam. Such an impregnated foam is particularly suitable for simple and universal joint sealing, with the impregnation in particular ensuring delayed recovery of the compressible, preferably precompressed, joint sealing strip. It can be an advantage if the impregnate is flame retardant. In particular, it can be advantageous if the impregnate is flame-retardant in such a way that the product corresponds to at least one of the common fire standards for the construction sector in its specified area of application, for example DIN 4102-B1 and/or DIN 4102-B2 and/or DIN 4102- ≥F30 and/or EN 13501 class E to B and/or EN 13501 >R30 or >EI30.

An advantageous embodiment of the invention provides that the foam or each foam element is a raw foam preferably impregnated with acrylates in such a way that the water vapor diffusion resistance of the foam or each foam element present in the installed state is lower than the water vapor diffusion resistance of at least one, preferably each membrane layer.

A development of the invention provides that at least one membrane layer is formed from adhesive, preferably from an acrylate pressure-sensitive adhesive or a mixture of acrylate pressure-sensitive adhesive and polyurethane adhesive.

It can be expedient if at least one membrane layer is formed from at least one waterproof modified acrylate, whereby high-performance, moisture-variable membrane layers are provided which, depending on the composition, are more diffusion-tight at high humidity than at lower humidity, or vice versa.

It can be advantageous if at least one membrane layer is formed from a modified polyamide film, which is preferably glued to the foam or foam element.

It can also be advantageous if at least one membrane layer is formed from a polyamide dispersion, preferably in the form of an adhesive.

A development of the invention provides that the application weight of an adhesive for the formation or joint formation of a membrane layer is 60 to 200 g/m ² , preferably 100 to 150 g/m ² . For certain applications it can be advantageous if the application weight is 100 to 119 g/m ² . For certain applications it can be advantageous if the application weight is 120 to 130 g/m ² . For some applications it can be advantageous if the application weight is 131 to 150 g/m ² .

An advantageous embodiment of the invention provides that the adhesive used to form the membrane layer has an adhesive strength according to AFERA 4001 of >20 N/25 mm.

It can be expedient if at least one membrane layer has a greater water vapor diffusion resistance than the foam or each foam element.

A development of the invention provides that at least two membrane layers have a different composition from one another.

A further development provides that the membrane layer or membrane layers are permanently elastic in order to meet improved diffusion values, so that the membrane layers remain permanently elastic even after aging in the compressed state and subsequent decompression or recovery and when the joint sealing tape is installed in a joint they always lie tightly against the joint flanks .

It can be advantageous if the joint sealing strip has at least one membrane layer on one or both longitudinal sides in addition to or instead of the internal membrane layers.

A further development of the invention provides that when several membrane layers are used, they can each have the same and/or a different distance between 5 mm and 100 mm from one another. For certain applications it can be advantageous if the distance is between 5 mm and 13 mm. For certain applications it can be advantageous if the distance is between 14 mm and 20 mm. For some applications it can be advantageous if the distance is between 21 mm and 30 mm. For completely different applications, it can be advantageous if the distance is between 31 mm and 100 mm.

A development of the invention provides that the distance between two membrane layers advantageously differs from the distance between two other membrane layers.

It can be expedient for certain applications if the membrane layer or the membrane layers are distributed or arranged uniformly over the width of the joint sealing strip.

For certain applications, however, it can also be expedient if the membrane layer or the membrane layers are/are distributed or arranged unevenly over the width of the joint sealing tape.

For some applications it can be advantageous if the membrane layer or membrane layers are arranged in the vicinity of one or both longitudinal sides of the joint sealing tape. However, it can also be advantageous for some other applications if the membrane layer or membrane layers are arranged further away from one or both longitudinal sides of the joint sealing tape.

For some applications, it can be advantageous if the distance between the membrane layers varies, preferably decreases and/or increases, from one long side to the other long side of the joint sealing strip.

A development of the invention provides that the foam elements running in the longitudinal direction and divided by at least one membrane layer are designed differently in such a way that the joint sealing tape is more impermeable to water vapor in the area that borders on an atmosphere with high humidity than in the area that adjacent to an atmosphere with lower humidity.

A development of the invention provides that the foam elements running in the longitudinal direction and divided by at least one membrane layer are designed differently in such a way that the joint sealing tape is less impermeable to water vapor in the area that borders on an atmosphere with high humidity than in the area adjacent to an atmosphere of lower humidity.

For some purposes, however, it can also be advantageous if several sealing areas are provided within a joint sealing tape, in that the foam elements running in the longitudinal direction and divided by at least one membrane layer are designed differently in a sealing area in such a way that the joint sealing tape in the area that is exposed to an atmosphere with high humidity, is less dense to water vapor than in the area that borders an atmosphere with lower humidity, and in another sealing area, the foam elements running in the longitudinal direction and divided by at least one membrane layer are designed so differently that the joint sealing tape in the area , adjacent to a high humidity atmosphere is denser to water vapor than in the area adjacent to a lower humidity atmosphere.

It can be advantageous if at least two foam elements have different density.

It can be expedient if the foam or each foam element is a PUR foam, preferably a PUR flexible foam. After pre-compression, this returns particularly well within the joint and ensures a permanent seal.

It can be advantageous if the foam or the foam elements have several functional areas, preferably a first area that is impervious to driving rain on the outside, a second area that is heat-insulating and reduces noise, and a third area that is airtight on the inside. The membrane layers advantageously ensure a delimitation of the aforementioned functional levels or the so-called functional areas, as described by the RAL Quality Association Windows & Doors e. V. required. Thermal insulation can be achieved which meets all the requirements of the Energy Saving Ordinance for window installation and the VOB for carpentry work in accordance with DIN 18355.

It can be useful if the joint sealing tape is compressible, preferably pre-compressed.

Advantageously, the joint sealing tape in roll form can be pre-compressed and have delayed recovery.

The thickness of the joint sealing strip in the non-compressed state is preferably between 10 mm and 100 mm, preferably between 18 mm and 60 mm. This specification does not include the thickness of the protrusion. Its thickness is selected depending on the depth of the recess and is usually between 10 mm and 40 mm, preferably between 15 mm and 25 mm, particularly preferably 20 mm.

A development of the invention provides that the joint sealing tape can be used to seal joints between assembled components in house construction, in particular between wall openings in an outer wall and window or door frames, preferably without the aid of additional joint tapes or backfill materials.

1. a) Ausbilden von großflächigen Membranschichten durch lagenweises Laminieren und/oder Verkleben von Platten- oder Bahnware eines Schaumstoffs zu Laminatblöcken,
2. b) Trennen der Laminatblöcke orthogonal zu den großflächigen Membranschichten aus Laminierungsmaterial und/ oder Klebstoff zu Tafeln mit Membranschichten und Schaumstoffelementen, so dass sich nach dem Trennen Membranschichten parallel zu einem Rand der Tafel und senkrecht durch die Tafel jeweils zwischen zwei Schaumstoffelementen erstrecken,
3. c) Einbringen von im Wesentlichen parallel zu den Membranschichten verlaufenden Einschnitten in die Tafel,
4. d) Aufrollen einer Tafel zu einer Rolle, so dass die Membranschichten und die Einschnitte und die Schaumstoffelemente auf dem Umfang der Rolle in axialer Richtung aufgereiht sind, und
5. e) Trennen der Rolle in Scheiben zu aufgerollten Fugendichtungsbändern mit
   • aa) nur zwei innerhalb des Fugendichtungsbandes zwischen jeweils zwei Schaumstoffelementen angeordneten Membranschichten sowie mehreren innerhalb des Fugendichtungsbandes zwischen den beiden Membranschichten in einem Schaumstoffelement angeordneten Einschnitten oder
   • bb) mehreren innerhalb des Fugendichtungsbandes zwischen jeweils zwei Schaumstoffelementen angeordneten Membranschichten sowie jeweils nur einem innerhalb des Fugendichtungsbandes zwischen zwei Membranschichten in einem Schaumstoffelement angeordneten Einschnitt.

The invention also relates to a method for producing a joint sealing strip, which is characterized by the following method steps:

1. a) formation of large-area membrane layers by laminating and/or gluing sheet or web material of a foam layer by layer to form laminate blocks,
2. b) separating the laminate blocks orthogonally to the large-area membrane layers made of laminating material and/or adhesive to form panels with membrane layers and foam elements, so that after separating membrane layers extend parallel to an edge of the panel and perpendicularly through the panel between two foam elements,
3. c) making cuts in the panel running essentially parallel to the membrane layers,
4. d) rolling up a panel into a roll so that the membrane layers and the incisions and the foam elements are lined up on the circumference of the roll in the axial direction, and
5. e) Separating the roll into discs with rolled up joint sealing tapes
   • aa) only two membrane layers arranged within the joint sealing strip between two foam elements in each case and several incisions arranged within the joint sealing strip between the two membrane layers in a foam element or
   • bb) a plurality of membrane layers arranged within the joint sealing strip between two foam elements in each case and only one incision arranged within the joint sealing strip between two membrane layers in a foam element.

It can be advantageous if the foam or the foam elements are soaked or impregnated after lamination and/or gluing and/or before or after making the incisions.

It can be advantageous if the panel is coated with a self-adhesive layer over its entire surface, preferably on the side opposite the incisions, or not coated over its entire surface with one or more than one self-adhesive web, which is preferably covered with detachable silicone paper, before it is rolled up.

1. a) Ausbilden von großflächigen Membranschichten durch lagenweises Laminieren und/oder Verkleben von Platten- oder Bahnware eines Schaumstoffs zu Laminatblöcken,
2. b) Trennen der Laminatblöcke orthogonal zu den großflächigen Membranschichten aus Laminierungsmaterial und/ oder Klebstoff zu Tafeln mit Membranschichten und Schaumstoffelementen, so dass sich nach dem Trennen Membranschichten parallel zu einem Rand der Tafel und senkrecht durch die Tafel jeweils zwischen zwei Schaumstoffelementen erstrecken,
3. c) Aufbringen und Verbinden, vorzugsweise Verkleben, von im Wesentlichen parallel zu den Membranschichten verlaufenden komprimierbaren Schaumstoffstreifen als Vorsprünge auf die Tafel
4. d) Aufrollen einer Tafel zu einer Rolle, so dass die Membranschichten und die Vorsprünge und die Schaumstoffelemente auf dem Umfang der Rolle in axialer Richtung aufgereiht sind, und
5. e) Trennen der Rolle zwischen einzelnen Vorsprüngen in Scheiben zu aufgerollten Fugendichtungsbändern mit wenigstens einer innerhalb des Fugendichtungsbandes zwischen zwei Schaumstoffelementen angeordneten Membranschicht sowie nur einem Vorsprung.

The invention also relates to a method for producing a joint sealing strip, which is characterized by the following method steps:

1. a) formation of large-area membrane layers by laminating and/or gluing sheet or web material of a foam layer by layer to form laminate blocks,
2. b) separating the laminate blocks orthogonally to the large-area membrane layers made of laminating material and/or adhesive to form panels with membrane layers and foam elements, so that after separating membrane layers extend parallel to an edge of the panel and perpendicularly through the panel between two foam elements,
3. c) Applying and connecting, preferably gluing, compressible foam strips running essentially parallel to the membrane layers as projections onto the panel
4. d) rolling up a panel into a roll such that the membrane layers and the projections and the foam elements are lined up on the circumference of the roll in the axial direction, and
5. e) Separation of the roll between individual projections in discs to form rolled up joint sealing strips with at least one membrane layer arranged within the joint sealing strip between two foam elements and only one projection.

It can be advantageous if the foam or the foam elements are soaked or impregnated after the lamination and/or gluing and/or after or preferably before the application of the projections. If the foam or the foam elements are soaked or impregnated after the projections have been applied, they are obtained the projections also an impregnation. If foam or the foam elements are soaked or impregnated before the projections are applied, it can be advantageous if the projections are either not soaked or impregnated themselves or are soaked or impregnated beforehand.

It can be expedient if the panel is coated with a self-adhesive layer over its entire surface, preferably on the side opposite the at least one projection, before it is rolled up, or if it is not coated over its entire surface with one or more than one self-adhesive web, which is preferably covered with detachable silicone paper.

1. a) Ausbilden von großflächigen Membranschichten durch lagenweises Laminieren und/oder Verkleben von Platten- oder Bahnware eines Schaumstoffs zu Laminatblöcken,
2. b) Trennen der Laminatblöcke orthogonal zu den großflächigen Membranschichten aus Laminierungsmaterial und/ oder Klebstoff zu Tafeln mit Membranschichten und Schaumstoffelementen, so dass sich nach dem Trennen Membranschichten parallel zu einem Rand der Tafel und senkrecht durch die Tafel jeweils zwischen zwei Schaumstoffelementen erstrecken,
3. c) Trennen der einzelnen Tafel in jeweils zwei Hälften, wobei jede Hälfte auf der Trennseite in Längsrichtung verlaufende Vorsprünge aufweist,
4. d) Aufrollen jeder Tafelhälfte zu einer Rolle, so dass die Membranschichten und die Vorsprünge und die Schaumstoffelemente auf dem Umfang der Rolle in axialer Richtung aufgereiht sind, und
5. e) Trennen der Rolle zwischen einzelnen Vorsprüngen in Scheiben zu aufgerollten Fugendichtungsbändern mit wenigstens einer innerhalb des Fugendichtungsbandes angeordneten Membranschicht sowie nur einem Vorsprung.

The invention also relates to a method for producing a joint sealing strip, which is characterized by the following method steps:

1. a) formation of large-area membrane layers by laminating and/or gluing sheet or web material of a foam layer by layer to form laminate blocks,
2. b) separating the laminate blocks orthogonally to the large-area membrane layers made of laminating material and/or adhesive to form panels with membrane layers and foam elements, so that after separating membrane layers extend parallel to an edge of the panel and perpendicularly through the panel between two foam elements,
3. c) separating the individual panel into two halves, each half having longitudinal projections on the separation side,
4. d) rolling up each panel half into a roll so that the membrane layers and the projections and the foam elements are lined up on the circumference of the roll in the axial direction, and
5. e) Separating the roll between individual projections into discs to form rolled up joint sealing tapes with at least one membrane layer arranged inside the joint sealing tape and only one projection.

It can be advantageous if the foam or the foam elements and the projections are soaked or impregnated after the lamination and/or adhesion and/or after or preferably before the separation of the panel.

It can be advantageous if the panel is coated with a self-adhesive layer over its entire surface, preferably on the side opposite the at least one projection, before being rolled up, or is not coated over its entire surface with one or more than one self-adhesive sheet, which is preferably covered with a detachable silicone paper.

Fig. 1

ein erstes Fugendichtungsband a) im nicht komprimierten Zustand, b) im komprimierten Zustand und c) im Einbauzustand innerhalb einer Fuge ohne c1) und mit c2) Aussparung, jeweils im Querschnitt,

Fig. 2

ein zweites Fugendichtungsband a) im nicht komprimierten Zustand, b) im komprimierten Zustand und c) im Einbauzustand innerhalb einer Fuge ohne c1) und mit c2) Aussparung, jeweils im Querschnitt,

Fig. 3

ein drittes Fugendichtungsband a) im nicht komprimierten Zustand, b) im komprimierten Zustand und c) im Einbauzustand innerhalb einer Fuge ohne c1) und mit c2) Aussparung, jeweils im Querschnitt,

Fig. 4

ein viertes Fugendichtungsband a) im nicht komprimierten Zustand und b) im komprimierten Zustand, jeweils im Querschnitt,

Fig. 5

ein fünftes Fugendichtungsband a) im nicht komprimierten Zustand und b) im komprimierten Zustand und c) im Einbauzustand inner-halb einer Fuge ohne c1) und mit c2) Aussparung, jeweils im Querschnitt,

Fig. 6

ein sechstes Fugendichtungsband a) im nicht komprimierten Zustand und b) im komprimierten Zustand und c) im Einbauzustand innerhalb einer Fuge ohne c1) und mit c2) Aussparung, jeweils im Querschnitt,

Fig. 7

ein siebtes Fugendichtungsband a) im nicht komprimierten Zustand und b) im komprimierten Zustand, jeweils im Querschnitt,

Fig. 8

ein achtes Fugendichtungsband a) im nicht komprimierten Zustand und b) im komprimierten Zustand, jeweils im Querschnitt,

Fig. 9

ein neuntes Fugendichtungsband a) im nicht komprimierten Zustand und b) im komprimierten Zustand und c) im Einbauzustand innerhalb einer Fuge ohne c1) und mit c2) Aussparung, jeweils im Querschnitt,

Fig. 10

einen Ausschnitt eines zweiten Fugendichtungsbandes mit Selbstklebeschicht auf der Unterseite in perspektivischer Darstellung mit Hauptblick auf eine Längsseite,

Fig. 11

einen Ausschnitt eines sechsten Fugendichtungsbandes mit Selbstklebeschicht auf der Unterseite in perspektivischer Darstellung mit Hauptblick auf eine Längsseite

Fig. 12

einen Ausschnitt eines neunten Fugendichtungsbandes mit Selbstklebeschicht auf der Unterseite in perspektivischer Darstellung mit Hauptblick auf eine Längsseite

Fig. 13

eine Seitenansicht eines in Rollenform vorrätig gehaltenen und vorkomprimierten zweiten Fugendichtungsbandes mit einem bereits abgerollten, sich zurückstellenden Abschnitt,

Fig. 14

eine schematische Darstellung des ersten Herstellungsschrittes eines Fugendichtungsbandes,

Fig. 15

eine schematische Darstellung eines nach dem ersten Herstellungsschritt erhaltenden Laminatblockes,

Fig. 16

eine schematische Darstellung einer nach Trennen des Laminatblockes erhaltenden Tafel,

Fig. 17

eine schematische Darstellung einer nach Trennen des Laminatblockes erhaltenden Tafel mit aufgebrachten Vorsprüngen,

Fig. 18

eine schematische Darstellung einer nach Trennen des Laminatblockes erhaltenden Tafel mit Einschnitten,

Fig. 19

eine schematische Darstellung einer nach dem Aufrollen einer Tafel erhaltenden Rolle,

Fig. 20

eine schematische Darstellung einer in einzelnen Scheiben getrennten Rolle,

Fig. 21

eine schematische Darstellung einer Altfenstersanierung unter Verwendung eines Fugendichtungsbandes und

Fig. 22

eine schematische Darstellung einer weiteren Altfenstersanierung unter Verwendung eines Fugendichtungsbandes.

Further advantageous refinements of the invention result from the drawing in conjunction with its description, with the invention being explained below using exemplary embodiments which are illustrated in the drawing. In this show:

1

a first joint sealing strip a) in the non-compressed state, b) in the compressed state and c) in the installed state within a joint without c1) and with c2) a recess, each in cross section,

2

a second joint sealing tape a) in the non-compressed state, b) in the compressed state and c) in the installed state within a joint without c1) and with c2) recess, each in cross section,

3

a third joint sealing tape a) in the non-compressed state, b) in the compressed state and c) in the installed state within a joint without c1) and with c2) recess, each in cross section,

4

a fourth joint sealing tape a) in the non-compressed state and b) in the compressed state, each in cross section,

figure 5

a fifth joint sealing tape a) in the non-compressed state and b) in the compressed state and c) in the installed state within a joint without c1) and with c2) recess, each in cross section,

6

a sixth joint sealing tape a) in the non-compressed state and b) in the compressed state and c) in the installed state within a joint without c1) and with c2) recess, each in cross section,

7

a seventh joint sealing tape a) in the non-compressed state and b) in the compressed state, each in cross section,

8

an eighth joint sealing tape a) in the non-compressed state and b) in the compressed state, each in cross section,

9

a ninth joint sealing tape a) in the non-compressed state and b) in the compressed state and c) in the installed state within a joint without c1) and with c2) recess, each in cross section,

10

a section of a second joint sealing tape with a self-adhesive layer on the underside in a perspective view with the main view of a long side,

11

a section of a sixth joint sealing tape with a self-adhesive layer on the underside in a perspective view with the main view of a long side

12

a section of a ninth joint sealing tape with a self-adhesive layer on the underside in a perspective view with the main view of a long side

13

a side view of a second joint sealing tape kept in stock in roll form and precompressed with an already unrolled, resetting section,

14

a schematic representation of the first manufacturing step of a joint sealing tape,

15

a schematic representation of a laminate block obtained after the first production step,

16

a schematic representation of a panel obtained after separating the laminate block,

17

a schematic representation of a panel obtained after separating the laminate block with applied projections,

18

a schematic representation of a panel with incisions obtained after separating the laminate block,

19

a schematic representation of a roll obtained after rolling up a panel,

20

a schematic representation of a roll separated into individual discs,

21

a schematic representation of an old window renovation using a joint sealing tape and

22

a schematic representation of another old window renovation using a joint sealing tape.

The features essential for understanding the invention are shown and explained in the drawing. If the same reference numerals are used in the figures, they denote the same parts.

1 shows a first joint sealing strip 10 a) in the non-compressed state, b) in the compressed state and c) in the installed state within a joint without c1) and with c2) a recess, each in cross section.

The joint sealing tape 10 has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. Two membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has seven incisions 30 which run only in the longitudinal direction 28, parallel or almost parallel to the longitudinal sides 16, 18 and are made in a foam element 12 of the joint sealing strip 10 from the top 22 and which are designed in such a way that at least one between two incisions 30 existing section 32 of the joint sealing tape 10 from a compressed state into a Any recess 34 of one joint flank 20 can expand, while other sections 36 of the joint sealing strip 10, which lie outside the at least one section 32 expanding into the recess 34, adjoin the region 38 of the one joint flank 20 that does not have the recess 34.

The joint sealing tape 10 comprises three foam elements 12, the two membrane layers 14 being arranged between two foam elements 12 in each case. A membrane layer 14 is arranged close to one longitudinal side 16 , while the other membrane layer 14 is arranged close to the other longitudinal side 18 .

The incisions 30 are arranged in the area between the membrane layers 14 .

It is easy to see that in the sections 32 between two incisions 30, which in accordance with the existing recess 34 1 c2) expand, no membrane layer 14 is arranged.

2 shows a second joint sealing strip 10 a) in the non-compressed state, b) in the compressed state and c) in the installed state within a joint without c1) and with c2) a recess, each in cross section.

The joint sealing tape 10 has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. Between top 22 and bottom 26 and parallel or almost parallel to the longitudinal sides 16, 18 six membrane layers 14 each in the longitudinal direction 28. Each membrane layer 14 is located between two foam elements 12, so that the joint sealing strip 10 has a total of seven foam elements 12.

The joint sealing strip 10 has five incisions 30 running only in the longitudinal direction 28, parallel or almost parallel to the longitudinal sides 16, 18 and made in the joint sealing strip 10 from the top 22, which are designed in such a way that at least one section between two incisions 30 is present 32 of the joint sealing strip 10 can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the joint sealing strip 10, which lie outside the at least one section 32 expanding into the recess 34, on the sections that do not have the recess 34 Area 38 of a joint edge 20 adjacent.

The joint sealing tape 10 comprises seven foam elements 12, the six membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly across the width of the joint sealing strip 10 .

One incision 30 is arranged in the area between two membrane layers 14 .

It is easy to see that in the sections 32 between two incisions 30, which in accordance with the existing recess 34 1 c2) expand, in each case a membrane layer 14 is arranged and designed in such a way that this 14 is intact even after complete expansion of section 32 .

3 shows a third joint sealing strip 10 a) in the non-compressed state, b) in the compressed state and c) in the installed state within a joint without c1) and with c2) a recess, each in cross section.

The joint sealing tape has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. A membrane layer 14 runs in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has eleven incisions 30 running only in the longitudinal direction 28, parallel or almost parallel to the longitudinal sides 16, 18 and made in the joint sealing strip 10 from the top 22, which are designed in such a way that at least one section between two incisions 30 is present 32 of the joint sealing strip 10 can expand from a compressed state into an optionally present recess 34 of one joint flank 20, while other sections 36 of the joint sealing strip 10, which are outside of the at least one into the recess 34 Expanding section 32 lie, adjoin the region 38 of one joint flank 20 that does not have the recess 34 .

The joint sealing strip 10 comprises two foam elements 12, with the membrane layer 14 being arranged between the two foam elements 12. The membrane layer 14 is arranged close to one longitudinal side 16 . When sealing a window (46), this longitudinal side 16 faces the interior side. In 3 c2) it is easy to see that the window 46 can be additionally sealed to the outside by another joint sealing strip 58 of a different design against an external clinker 60.

The incisions 30 are arranged in the area between the membrane layer 14 and the other longitudinal side 18 .

It is easy to see that in the sections 32 between two incisions 30, which in accordance with the existing recess 34 1 c2) expand, no membrane layer 14 is arranged.

4 shows a fourth joint sealing tape 10 a) in the non-compressed state and b) in the compressed state, each in cross section.

The joint sealing strip has two longitudinal sides 16, 18 and, in the installed state of the joint sealing strip 10, an upper side 22 adjoining one joint flank 20 and an upper side 22, in the installed state of the joint sealing strip 10, on the opposite side Joint edge 24 adjacent bottom 26 on. Two membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has on the upper side 22 a compressible projection 40 made of foam material, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the Joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of a joint flank 20 that does not have the recess 34.

The joint sealing tape 10 comprises three foam elements 12, the two membrane layers 14 being arranged between two foam elements 12 in each case. A membrane layer 14 is arranged close to one longitudinal side 16 , while the other membrane layer 14 is arranged close to the other longitudinal side 18 .

The projection 40 is glued as a separate part relatively centrally to the upper side 22 of the joint sealing strip 10, but itself has no membrane layer.

figure 5 shows a fifth joint sealing strip 10 a) in the non-compressed state, b) in the compressed state, and c) in the installed state within a joint without c1) and with c2) a recess, each in cross section.

The joint sealing tape has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. Five membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has on the upper side 22 a compressible projection 40 made of foam material, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the Joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of a joint flank 20 that does not have the recess 34.

The joint sealing strip 10 comprises six foam elements 12, the five membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly over the width of the joint sealing strip 10 .

The projection 40 is eccentrically bonded as a separate part, preferably to a longitudinal side 18, then to the top side 22 of the joint sealing strip 10, but itself has no membrane layer.

6 shows a sixth joint sealing strip 10 a) in the non-compressed state, b) in the compressed state, and c) in the installed state within a joint without c1) and with c2) a recess, each in cross section.

The joint sealing tape has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. Five membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has on the upper side 22 a compressible projection 40 made of foam material, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the Joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of a joint flank 20 that does not have the recess 34.

The joint sealing strip 10 comprises six foam elements 12, the five membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly over the width of the joint sealing strip 10 .

The projection 40 is glued as a separate part in the center to the upper side 22 of the joint sealing strip 10, but does not itself have a membrane layer.

7 shows a seventh joint sealing tape 10 a) in the non-compressed state and b) in the compressed state, each in cross section.

The joint sealing tape has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. Two membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has on the upper side 22 a compressible projection 40 made of foam material, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the Joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of a joint flank 20 that does not have the recess 34.

The joint sealing tape 10 comprises three foam elements 12, the two membrane layers 14 being arranged between two foam elements 12 in each case.

A membrane layer 14 is arranged close to one longitudinal side 16 , while the other membrane layer 14 is arranged close to the other longitudinal side 18 .

The projection 40 is formed relatively centrally and in one piece with the upper side 22 of the joint sealing strip 10, but does not itself have a membrane layer.

8 shows an eighth joint sealing tape 10 a) in the non-compressed state and b) in the compressed state, each in cross section.

The joint sealing tape has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. Five membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has on the upper side 22 a compressible projection 40 made of foam material, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the Joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of a joint flank 20 that does not have the recess 34.

The joint sealing tape 10 comprises six foam elements 12, the five membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly over the width of the joint sealing tape 10 .

The projection 40 terminates eccentrically with a longitudinal side 18 and is formed in one piece with the upper side 22 of the joint sealing strip 10 , with two of the membrane layers 14 mentioned also ending in the projection 40 .

9 shows a ninth joint sealing strip 10 a) in the non-compressed state, b) in the compressed state, and c) in the installed state within a joint without c1) and with c2) a recess, each in cross section.

The joint sealing tape has two longitudinal sides 16, 18 and an upper side 22 adjoining one joint flank 20 when the joint sealing tape 10 is installed and an underside 26 adjoining the opposite joint edge 24 when the joint sealing tape 10 is installed. Five membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing tape 10 has on the upper side 22 a compressible projection 40 made of foam, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of the one joint flank 20 that does not have the recess 34.

The joint sealing strip 10 comprises six foam elements 12, the five membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly over the width of the joint sealing strip 10 .

The projection 40 is centrally located and formed integrally with the top surface 22 of the waterbar 10, with one of the membrane layers merging into the projection.

It is easy to see that in the sections 32, which in accordance with the existing recess 34 1 c2) expand, a membrane layer 14 is arranged.

10 shows a section of a second joint sealing tape 10 with a self-adhesive layer 56 on the underside 26 in a perspective view with the main view of a longitudinal side 18. The joint sealing tape 10 has two longitudinal sides 16, 18 and, when the joint sealing tape 10 is installed, an upper side 22 adjoining the one joint flank 20 and one in the installed state of the joint sealing tape 10 on the opposite joint flank 24 adjacent underside 26. Six membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has five incisions 30 running only in the longitudinal direction 28, parallel or almost parallel to the longitudinal sides 16, 18 and made in the joint sealing strip 10 from the top 22, which are designed in such a way that at least one section between two incisions 30 is present 32 of the joint sealing strip 10 can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the joint sealing strip 10, which lie outside the at least one section 32 expanding into the recess 34, on the sections that do not have the recess 34 Area 38 of a joint edge 20 adjacent.

The joint sealing tape 10 comprises seven foam elements 12, the six membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly across the width of the joint sealing strip 10 . One incision 30 is arranged in the area between two membrane layers 14 .

11 shows a section of a sixth joint sealing tape 10 with a self-adhesive layer 56 on the underside in a perspective view with the main view of a longitudinal side 18. The joint sealing tape has two longitudinal sides 16, 18 and, when the joint sealing tape 10 is installed, an upper side 22 adjoining a joint flank 20 and an upper side 22 when installed of the joint sealing tape 10 to the opposite joint flank 24 adjacent underside 26. Between top 22 and Six membrane layers 14 each run in the longitudinal direction 28 on the underside 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has on the upper side 22 a compressible projection 40 made of foam material, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the Joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of a joint flank 20 that does not have the recess 34.

The joint sealing strip 10 comprises seven foam elements 12, the six membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly over the width of the joint sealing strip 10 .

The projection 40 is glued as a separate part in the center to the upper side 22 of the joint sealing strip 10, but does not itself have a membrane layer.

12 shows a section of a ninth joint sealing tape 10 with a self-adhesive layer 56 on the underside 26 in a perspective view with the main view of a longitudinal side 18. The joint sealing tape has two longitudinal sides 16, 18 and, when the joint sealing tape 10 is installed, an upper side 22 adjoining a joint flank 20 and an im Installation state of the joint sealing tape 10 to the opposite joint edge 24 adjacent bottom 26 on. Six membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has on the upper side 22 a compressible projection 40 made of foam material, which extends only in the longitudinal direction 28 and is designed in such a way that it can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the Joint sealing strip, which lie outside of the at least one projection 40 expanding into the recess 34, adjoin the region 38 of a joint flank 20 that does not have the recess 34.

The joint sealing tape 10 comprises seven foam elements 12, the six membrane layers 14 being arranged between two foam elements 12 in each case. The membrane layers 14 are distributed relatively evenly over the width of the joint sealing strip 10 .

The projection 40 is centrally located and formed integrally with the top surface 22 of the waterbar 10, with two of the membrane layers merging into the projection.

13 shows a side view of a second joint sealing tape 10 kept in stock in roll form 42 and precompressed with an already unrolled, resetting section. The joint sealing tape 10 has two longitudinal sides 16, 18 and one in the installed state of the joint sealing strip 10 on the one joint flank 20 adjacent upper side 22 and in the installed state of the joint sealing strip 10 on the opposite joint flank 24 adjacent underside 26. Two membrane layers 14 each run in the longitudinal direction 28 between the upper side 22 and the lower side 26 and parallel or almost parallel to the longitudinal sides 16, 18.

The joint sealing strip 10 has three incisions 30 that run only in the longitudinal direction 28, parallel or almost parallel to the longitudinal sides 16, 18 and are made in the joint sealing strip 10 from the top 22, which are designed in such a way that at least one section between two incisions 30 is present 32 of the joint sealing strip 10 can expand from a compressed state into a recess 34 that may be present in one joint flank 20, while other sections 36 of the joint sealing strip 10, which lie outside the at least one section 32 expanding into the recess 34, on the sections that do not have the recess 34 Area 38 of a joint edge 20 adjacent.

The joint sealing tape 10 comprises three foam elements 12, the two membrane layers 14 being arranged between two foam sections 12 in each case. The membrane layers 14 are distributed relatively evenly across the width of the joint sealing strip 10 . One membrane layer 14 each is arranged in the area between two incisions 30 .

• a) Ausbilden von großflächigen Membranschichten 14 durch lagenweises Laminieren und/oder Verkleben von Platten- 48 oder Bahnware eines Schaumstoffs zu Laminatblöcken 50, wie in Fig. 14 dargestellt,
• b) Trennen der in Fig. 15 dargestellten Laminatblöcke 50 orthogonal zu den großflächigen Membranschichten 14 aus Laminierungsmaterial und/ oder Klebstoff zu Tafeln 52 mit Membranschichten 14 und Schaumstoffelementen 12, so dass sich nach dem Trennen Membranschichten 14 parallel zu einem Rand der Tafel 52 und senkrecht durch die Tafel 52 zwischen zwei Schaumstoffelementen 12 erstrecken, wie in Fig. 16 dargestellt,
• c) Aufbringen und Verkleben von parallel zu den Membranschichten 14 verlaufenden komprimierbaren Schaumstoffstreifen als Vorsprünge 40 auf die Tafel 52, wie in Fig. 17 dargestellt, oder alternativ
• c) Einbringen von parallel zu den Membranschichten 14 verlaufenden Einschnitten 30 in die Tafel 52, wie in Fig. 18 dargestellt,
• d) Aufrollen einer Tafel 52 zu einer in Fig. 19 schematisch dargestellten Rolle 42, so dass die Membranschichten 14 und die Einschnitte 30 und die Schaumstoffelemente 12 auf dem Umfang der Rolle 42 in axialer Richtung aufgereiht sind, und
• e) Trennen der Rolle 42 in Scheiben 54 zu aufgerollten Fugendichtungsbändern 10, wie in Fig. 20 dargestellt, mit wenigstens einer innerhalb des Fugendichtungsbandes 10 angeordneten Membranschicht 14 sowie mindestens einem Vorsprung 40 oder alternativ mindestens einem Einschnitt 30.

A method for producing a joint sealing strip 10 is characterized by the following method steps:

• a) Forming of large-area membrane layers 14 by laminating and/or gluing sheets 48 or webs of foam to form laminate blocks 50 in layers, as in 14 shown,
• b) Separating the in 15 laminate blocks 50 shown orthogonally to the large-area membrane layers 14 made of laminating material and/or adhesive to form panels 52 with membrane layers 14 and foam elements 12, so that after separation, membrane layers 14 parallel to an edge of the panel 52 and perpendicularly through the panel 52 between two foam elements 12 extend as in 16 shown,
• c) Application and gluing of compressible foam strips running parallel to the membrane layers 14 as projections 40 on the panel 52, as in 17 shown, or alternatively
• c) Making incisions 30 parallel to the membrane layers 14 in the panel 52, as in FIG 18 shown,
• d) rolling up a panel 52 into an in 19 schematically illustrated roller 42, so that the membrane layers 14 and the incisions 30 and the foam elements 12 are lined up on the circumference of the roller 42 in the axial direction, and
• e) Separating the roll 42 into disks 54 to form rolled up joint sealing tapes 10, as in 20 shown, with at least one membrane layer 14 arranged within the joint sealing strip 10 and at least one projection 40 or alternatively at least one incision 30.

Before being rolled up, the panel 52 is rolled over its entire surface, preferably on the side 26 opposite the at least one projection 40 or alternatively the incisions 30 coated with a self-adhesive layer 56, which is preferably covered with a detachable silicone paper.

21 shows a schematic representation of an old window renovation using a joint sealing tape in three steps a), b) and c).

22 shows a schematic representation of another old window renovation with a so-called clinker stop using a joint sealing tape.

Reference List (is part of the description)

10

joint sealing tape

12

foam element

14

membrane layer

16

long side

18

long side

20

joint edge

22

top

24

joint edge

26

bottom

28

longitudinal direction

30

incision

32

Section between two incisions

34

recess

36

Section outside the recess

38

Area outside the recess

40

head Start

42

roll form or role

44

outer wall

46

window frames

48

sheet goods

50

laminate blocks

52

blackboard

54

disc

56

self-adhesive layer

58

sealing tape

60

exterior clinker

Claims (18)

1. Use of a compressible joint sealing strip (10), in which the joint sealing strip (10) is installed into a joint, wherein the joint has a first joint flank (20) and a second joint flank (24) opposite to the first joint flank (20), wherein the first joint flank (20) has a cutout (34) running in a longitudinal direction of the first joint flank (20), wherein the cutout (34) arises in particular from a window frame which has been removed previously, wherein the joint sealing strip (10) has two longitudinal sides (16, 18), and also a top side (22) which in the installed state of the joint sealing strip (10) adjoins the first joint flank (20) and a bottom side (26) which in the installed state of the joint sealing strip (10) adjoins the opposite second joint flank (24), wherein the joint sealing strip (10) comprises foam elements (12), wherein one or preferably a plurality of membrane layers (14) run in each case in the longitudinal direction (28) between the top side (22) and the bottom side (26) and parallel or virtually parallel to the longitudinal sides (16, 18) between two foam elements (12), wherein the joint sealing strip (10) has only one cut (30) or only cuts (30) which run only in the longitudinal direction (28) parallel or virtually parallel to the longitudinal sides (16, 18) and which are introduced from the top side (22) into a foam element (12) of the joint sealing strip (10), wherein the cut (30) or the cuts (30) are formed in such a way that at least one portion (32) of the joint sealing strip (10) expands from a compressed state into the cutout (34) of the first joint flank (20), while at least one other portion (36) of the joint sealing strip (10), said at least one other portion lying outside the at least one portion (32) which is expanded into the cutout (34), adjoins that region (38) of the first joint flank (20) which does not comprise the cutout (34).
2. Use according to Claim 1, characterized in that the joint sealing strip (10) has at least two cuts (30) which run only in the longitudinal direction (28) parallel or virtually parallel to the longitudinal sides (16, 18), which are introduced from the top side (22) into one or more than one foam element (12) of the joint sealing strip (10) and which are formed in such a way that at least one portion (32) of the joint sealing strip (10) present between two cuts (30) is expanded from a compressed state into the cutout (34) of the first joint flank (20), while other portions (36) of the joint sealing strip (10) which lie outside the at least one portion (32) which is expanded into the cutout (34) adjoin that region (38) of the first joint flank (20) which does not comprise the cutout (34).
3. Use according to Claim 1 or 2, characterized in that at least one cut (30) in the non-compressed joint sealing strip (10) has a length which corresponds to at least 1/2, preferably 3/4, of the height of the non-compressed joint sealing strip (10).
4. Use according to one of Claims 1 to 3, characterized in that no membrane layer (14) is arranged at least in a portion (32) between two cuts (30), preferably in the portion (32) which is expanded into the cutout (34), and/or in that at least one membrane layer (14) is arranged at least in a portion (32) between two cuts (30) which is expanded into the cutout (34).
5. Use according to Claim 4, characterized in that the membrane layer (14) is formed in such a way that said membrane layer (14) is intact even after complete expansion of the portion (32).
6. Use of a compressible joint sealing strip (10), in which the joint sealing strip (10) is introduced into a joint, wherein the joint has a first joint flank (20) and a second joint flank (24) opposite to the first joint flank (20), wherein the first joint flank (20) has a cutout (34) running in a longitudinal direction of the first joint flank (20), wherein the cutout (34) arises in particular from a window frame which has been removed previously, wherein the joint sealing strip (10) has two longitudinal sides (16, 18), and also a top side (22) which in the installed state of the joint sealing strip (10) adjoins the first joint flank (20) and a bottom side (26) which in the installed state of the joint sealing strip (10) adjoins the opposite second joint flank (24), wherein the joint sealing strip (10) comprises foam elements (12), wherein one or preferably a plurality of membrane layers (14) run in each case in the longitudinal direction (28) between the top side (22) and the bottom side (26) and parallel or virtually parallel to the longitudinal sides (16, 18) between two foam elements (12), wherein the joint sealing strip (10) has, on the top side (22), at least one compressible projection (40) which runs only in the longitudinal direction (28), which is composed of foam (12) and which is formed in such a way that said projection expands from a compressed state into the cutout (34) of the first joint flank (20), while at least one other portion (36) of the joint sealing strip, said at least one other portion lying outside the at least one projection (40) which is expanded into the cutout (34), adjoins that region (38) of the first joint flank (20) which does not comprise the cutout (34).
7. Compressible joint sealing strip (10) comprising foam elements (12), wherein the joint sealing strip (10) has two longitudinal sides (16, 18), and also a top side (22) which in the installed state of the joint sealing strip (10) adjoins the one joint flank (20) and a bottom side (26) which in the installed state of the joint sealing strip (10) adjoins the opposite joint flank (24), wherein one or preferably a plurality of membrane layers (14) run in each case in the longitudinal direction (28) between the top side (22) and the bottom side (26) and parallel or virtually parallel to the longitudinal sides (16, 18) between two foam elements (12), characterized in that the joint sealing strip (10) has, on the top side (22), at least one compressible projection (40) which runs only in the longitudinal direction (28), which is composed of foam (12) and which is formed in such a way that said projection can expand from a compressed state into a possibly present cutout (34) of the one joint flank (20), while at least one other portion (36) of the joint sealing strip, said at least one other portion lying outside the at least one projection (40) which expands into the cutout (34), adjoins that region (38) of the one joint flank (20) which does not comprise the cutout (34), wherein at least one projection (40) is formed in one part with the top side (22) of the joint sealing strip (10), wherein the projection comprises no membrane layer (14).
8. Use according to Claim 6, characterized in that at least one projection (40) is connected, preferably adhesively bonded, as a separate part to the top side (22) of the joint sealing strip (10).
9. Use according to Claim 6, characterized in that at least one projection (40) is formed in one part with the top side (22) of the joint sealing strip (10).
10. Use according to Claim 6, characterized in that at least one projection (40) comprises at least one membrane layer (14) which runs in the longitudinal direction (28) parallel or virtually parallel to the longitudinal sides (16, 18).
11. Use according to one of Claims 6, 8 to 10 or compressible joint sealing strip (10) according to Claim 7, characterized in that the projection (40) provided on the top side (22) of the joint sealing strip (10) is arranged centrally or eccentrically between the longitudinal sides (16, 18), wherein an eccentrically arranged projection (40) preferably terminates with one of the longitudinal sides (16, 18).
12. Method for producing a joint sealing strip (10), characterized by the following method steps:

    a) forming large-area membrane layers (14) by layerwise lamination and/or adhesive bonding of sheet material (48) or web material of a foam to form laminate blocks (50),

    b) cutting the laminate blocks (50) orthogonally with respect to the large-area membrane layers (14) composed of laminating material and/or adhesive to form panels (52) comprising membrane layers (14) and foam elements (12), such that, after the cutting, membrane layers (14) extend parallel to an edge of the panel (52) and perpendicularly through the panel (52) in each case between two foam elements (12),

    c) introducing cuts (30) which run substantially parallel to the membrane layers (14) into the panel (52),

    d) rolling up a panel (52) to form a roll (42), such that the membrane layers (14) and the cuts (30) and the foam elements (12) are lined up in an axial direction around the circumference of the roll (42), and

    e) cutting the roll (42) into slices (54) to form rolled-up joint sealing strips (10) comprising

    aa) only two membrane layers (14) which are arranged within the joint sealing strip (10) between in each case two foam elements (12), and a plurality of cuts (30) which are arranged within the joint sealing strip (10) between the two membrane layers (14) in a foam element (12), or

    bb) a plurality of membrane layers (14) which are arranged within the joint sealing strip (10) between in each case two foam elements (12), and in each case only one cut (30) which is arranged within the joint sealing strip (10) between two membrane layers (14) in a foam element (12).
13. Method according to Claim 12, characterized in that the foam or the foam elements are soaked or impregnated after the lamination and/or adhesive bonding and/or before or after the introduction of the cuts (30).
14. Method for producing a joint sealing strip (10), characterized by the following method steps:

    a) forming large-area membrane layers (14) by layerwise lamination and/or adhesive bonding of sheet material (48) or web material of a foam to form laminate blocks (50),

    b) cutting the laminate blocks (50) orthogonally with respect to the large-area membrane layers (14) composed of laminating material and/or adhesive to form panels (52) comprising membrane layers (14) and foam elements (12), such that, after the cutting, membrane layers (14) extend parallel to an edge of the panel (52) and perpendicularly through the panel (52) in each case between two foam elements (12),

    c) applying and connecting, preferably adhesively bonding, compressible foam strips, which run substantially parallel to the membrane layers (14), as projections (40) onto the panel (52),

    d) rolling up the panel (52) to form a roll (42), such that the membrane layers (14) and the projections (40) and the foam elements (12) are lined up in the axial direction around the circumference of the roll (42), and

    e) cutting the roll (42), between individual projections (40), into slices (54) to form rolled-up joint sealing strips (10) comprising at least one membrane layer (14) which is arranged within the joint sealing strip (10) between two foam elements (12), and only one projection (40).
15. Method according to Claim 14, characterized in that the foam or the foam elements (12) are soaked or impregnated after the lamination and/or adhesive bonding and/or after or preferably before the application of the projections (40).
16. Method for producing a joint sealing strip (10), characterized by the following method steps:

    a) forming large-area membrane layers (14) by layerwise lamination and/or adhesive bonding of sheet material (48) or web material of a foam to form laminate blocks (50),

    b) cutting the laminate blocks (50) orthogonally with respect to the large-area membrane layers (14) composed of laminating material and/or adhesive to form panels (52) comprising membrane layers (14) and foam elements (12), such that, after the cutting, membrane layers (14) extend parallel to an edge of the panel (52) and perpendicularly through the panel (52) in each case between two foam elements (12),

    c) cutting the individual panels (52) into two halves in each case, wherein each half has projections (40) running in the longitudinal direction (28) on the cutting side,

    d) rolling up each panel half (52) to form a roll (42), such that the membrane layers (14) and the projections (40) and the foam elements are lined up in the axial direction around the circumference of the roll (42), and

    e) cutting the roll (42), between individual projections (40), into slices (54) to form rolled-up joint sealing strips (10) comprising at least one membrane layer (14), which is arranged within the joint sealing strip (10), and only one projection (40).
17. Method according to Claim 16, characterized in that the foam or the foam elements and the projections are soaked or impregnated after the lamination and/or adhesive bonding and/or after or preferably before the cutting of the panel (52).
18. Method according to one of Claims 12 to 17, characterized in that, before being rolled up, the panel (52) or panel half (52) is coated, preferably on the side (26) opposite to the cuts (30) or opposite to the at least one projection (40), over its full area with a self-adhesive layer (56) or only over part of its area with one or more than one self-adhesive strip(s), which is preferably covered with a releasable silicone paper.

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