EP3569791B1 - Plastering lath, use of a double-sided adhesive foam strip with a plastering lath for placement on a building transition and building transition with such a plastering lath - Google Patents

Description

The present invention relates to a plastering strip for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular thermal insulation and / or a plaster layer, the use of a double-sided adhesive foam tape in a plastering strip for placement at such a building transition as well as a building transition with such a plastering strip.

Plaster strips are known in numerous embodiments. Particularly typical embodiments are plaster strips that are attached to a window or door frame and allow the plaster layer to be plastered onto the plaster strip instead of up to the window or door frame. As a result, the thermal insulation and / or the plaster layer is decoupled from the window or door frame, which, in the case of large temperature fluctuations that typically occur, ensures that no damage occurs to the end area of the plaster layer, for example through cracks or crumbling, and that the plaster layer is intact at the end remains, and that the transition between window or door frame and thermal insulation and / or plaster layer is permanently and reliably sealed.

From the DE 102 42 615 A1 such a plaster strip is known, which is glued to a window frame by means of a foam adhesive tape. More plastering strips are off EP 2 151 532 A2 or DE 20 2013 011085 U1 known.

Tests with such plaster strips have shown that if such plaster strips come into contact, for example, with a flame from a Bunsen burner when installed, such plaster strips are ignited after some time.

The risk of fire promoting is not too high at this position because the adjacent components, in particular the plaster layer and / or the window or door frame, which is often made of plastic, cannot be ignited, but there is a need to reduce the risk of fire on the plastering strip side lower it as much as possible.

It is therefore an object of the present invention to provide a plastering strip and a corresponding building transition in which the risk of ignition is reduced to a minimum, while at the same time maintaining the tightness and freedom from damage at the plaster end.

This object is achieved by the subject matter of the independent claims. Advantageous developments result from the dependent claims.

According to a first embodiment variant, a plaster strip according to the invention for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and / or a plaster layer, comprises a base body made of plastic; and a double-sided adhesive foam tape, one side of which is connected to the base body by means of an adhesive connection and which is equipped with an adhesive layer on the other side and is intended for adhesive connection to the first component of the building. The double-sided adhesive foam tape has a base material whose behavior in the event of fire falls into fire protection class B1 "hardly inflammable" according to DIN standard 4102-1 or into fire protection class B2 "normally flammable" according to DIN standard 4102-1. The double-sided adhesive foam tape has a closed-cell foam and a flame retardant.

According to a second embodiment variant, a plaster strip according to the invention for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and / or a plaster layer, comprises a base area; a plastering area intended for plastering into the plaster layer and / or for a permanent connection with the thermal insulation; a double-sided adhesive foam tape, one side of which is adhesively bonded to the base area and the other side is adhesively bonded to the plastered area; and an additional adhesive tape, in particular made of foam, which is connected to the base area on one side by means of an adhesive connection and which is equipped with an adhesive layer on the other side and is intended for connection to the first component of the building. The base area and / or the plastered area have a base body made of plastic. The double-sided adhesive foam tape has a base material, the behavior of which in the event of fire falls into fire protection class B1 "hardly inflammable" according to DIN standard 4102-1 or into fire protection class B2 "normally flammable" according to DIN standard 4102-1. The double-sided adhesive foam tape has a closed-cell foam and a flame retardant.

The inventor of the present patent application has determined that the main material, i.e. the material of the base body of the plastering strip, is not decisive for the risk of ignition of a plastering strip, because this is largely covered by the plaster layer, but rather the intermediate layer between the plastering strip and the Window or door frames play a crucial role here, as they are arranged in the gap between the window or door frame and the thermal insulation and / or plaster layer and are accessible from the outside of the building and therefore exposed to possible fire exposure in the event of a fire.

According to a further finding on which the invention is based, the main material of the plastering strip is usually made of flame-retardant material, in particular from hard PVC, but that part of the plastering strip that is accessible from the outside and, in the event of a fire, a flame and thus a fire load is precisely that part of the plastering strip is exposed, namely the adhesive tape with which the plaster strip is glued to the window or door frame, made of a material that is easily combustible.

According to a basic idea of the present invention, the behavior of the foam adhesive tape in the event of fire is reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1. The May 1998 edition is regarded as the relevant version of DIN standard 4102-1.

This ensures that the properties and advantages of the plaster strip are retained unchanged and that in particular the simple gluing of the plaster strip to the first building component and the movement absorption of the foam adhesive tape are retained.

The fact that, according to the invention, the behavior of the foam adhesive tape in the event of fire is reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1, the risk of inflammation of the foam adhesive tape is significantly reduced. This also reduces the overall risk of the plastering strip catching fire.

This is important both for the delivery condition and for the installed condition of the plastering strip, as well as for the installation phase of the plastering strip, because a fire with a different fire effect can also arise during the installation phase. Because, according to the invention, the behavior of the entire foam adhesive tape, and not only partially against lateral exposure to flames, in the event of fire is reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1 and by reducing the risk of inflammation of the plastering strip Overall, the development or spread of a fire can also be effectively counteracted during the installation phase.

In the first variant, the risk of inflammation of the plastering strip is reduced to a minimum, because the components of the plastering strip that are accessible from the outside after installation of the same at the building transition and plastering has taken place and can be reached by a flame in the event of a fire, namely the foam adhesive tape and the underside of the base body, both each have a base material whose behavior in the event of fire falls into at least fire protection class B2 "normally flammable", in the case of the base body it usually falls into fire protection class B1 "flame retardant" and because the double-sided adhesive foam tape also has a flame retardant .

In the second variant, too, the risk of inflammation of the plastering strip is reduced to a minimum, because the components of the plastering strip that are accessible from the outside after they have been installed at the building transition and plastering has taken place and can be reached by a flame in the event of a fire, namely those facing outwards Sides of the adhesive tape, the base area and the foam adhesive tape and, if applicable, the underside of the plastered area, all each have a base material whose behavior in the event of a fire is at least in fire protection class B2 "normally flammable", in the case of the base body even mostly in fire protection class B1 "flame retardant" falls and because the double-sided adhesive foam tape also contains a flame retardant.

In the case of the plaster strips according to the invention according to the first and second embodiment variants, the risk of fire is significantly reduced compared to conventional plaster strips, without any deterioration in the other properties of the plaster strips.

At this point it should be pointed out that instead of the fire protection classes B1 "hardly inflammable" and B2 "normally inflammable" of DIN standard 4102-1, the corresponding classes for fire behavior are also used from the European standard EN13501-1 can be used as a reference.

• B; C-s1, d0 B1
• A2; B; C-s2, d0
• A2; B; C-s3, d0
• A2; B; C-s1, d1
• A2; B; C-s1, d2
• A2; B; C-s3, d2

Fire protection class B1 according to DIN standard 4102-1 corresponds to the following classes of EN standard 13501-1:

• B; C-s1, d0 B1
• A2; B; C-s2, d0
• A2; B; C-s3, d0
• A2; B; C-s1, d1
• A2; B; C-s1, d2
• A2; B; C-s3, d2

• D-s1, d0
• D-s2, d0
• D-s3, d0
• D-s1, d2
• D-s2, d2
• D-s3, d2
• E
• E-d2

The fire protection class B2 "normally flammable" of DIN standard 4102-1 corresponds to the following classes of EN standard 13501-1:

• D-s1, d0
• D-s2, d0
• D-s3, d0
• D-s1, d2
• D-s2, d2
• D-s3, d2
• E.
• E-d2

Fire protection class B1 "hardly inflammable" means that the flammability must remain limited to the extent specified in DIN 4102-1 in the event of edge or surface exposure with a small flame.

Fire protection class B2 "normally flammable" means that the fire will extinguish itself after the source of the fire has been removed.

With regard to DIN standard 4102-1, the plastering strip according to the invention is to be regarded as external wall cladding in the sense of 6.1.1 b). In a test in which the flames striking from a wall opening are shown as a model, and the resulting exposure, the spread of the fire must not extend significantly outside of the primary fire area.

According to 6.1.2.1 of DIN standard 4102-1, plastering strips according to the invention, which are to be regarded as building materials, with the exception of floor coverings, meet the requirements for classification in building material class B1 if they pass the fire shaft test and meet the requirements for building material class B2.

1. a) der Mittelwert der Restlängen (nach 9.1 von DIN 4102-16: 1998-05) jedes Probekörpers mindestens 15 cm beträgt und dabei keine Probe eine Restlänge von 0 cm aufweist,
2. b) bei keinem Versuch die mittlere Rauchgastemperatur 200°C überschreitet,
3. c) die Proben nur soweit nachbrennen, mit Flamme nachglimmen oder nachschwelen, dass die Anforderung an die Restlänge erfüllt werden.

According to 6.1.2.2 of DIN standard 4102-1, the Brandschacht test is deemed to have been passed if a test according to 6.1.3.1

1. a) the mean value of the remaining lengths (according to 9.1 of DIN 4102-16: 1998-05) of each specimen is at least 15 cm and no specimen has a remaining length of 0 cm,
2. b) the mean flue gas temperature does not exceed 200 ° C in any of the tests,
3. c) the samples only burn, glow or smolder with the flame to such an extent that the requirement for the remaining length is met.

For further details on testing for building material class B1, reference is made to 6.1.3 and 6.1.4 of DIN standard 4102-1.

Plastering strips according to the invention fall into building material class B2 if, under exposure to a small, defined flame (match flame), the flammability and flame spread is limited within a certain time, see 6.2.1 of DIN standard 4102-1.

1. a) bei Kantenbeflammung nach 6.2.5.2 und
2. b) gegebenenfalls bei Flächenbeflammung nach 6.2.5.3

die Flammenspitze die Messmarke vor Ende der 20. Sekunde erreicht.Foam tapes according to the invention meet the requirements for classification in building material class B2 if they pass the test according to 6.2.2 of this standard. This test is considered passed if none of the five samples

1. a) with edge flaming according to 6.2.5.2 and
2. b) if applicable, in the case of surface flames according to 6.2.5.3

the flame tip reaches the measuring mark before the end of the 20th second.

With regard to the samples and the pretreatment, see 6.2.3, with regard to the test equipment to 6.2.4, with regard to the test to 6.2.5, and with regard to the test for burning debris (dripping) to 6.2.6 and with regard to the test certificate to 6.2.7 refer to DIN standard 4102-1.

The foam adhesive tape is not a single-sided adhesive tape, but a double-sided adhesive foam adhesive tape, which is provided with an adhesive layer on each of its opposite sides.

In the plastering strip, first variant, the double-sided adhesive foam tape is adhesively connected to the base body by means of the adhesive layer on one side, and by means of the adhesive layer on the other side, which in the delivery state is usually covered with a covering material, for example a covering Paper strip, covered, intended for adhesive connection to the first component of the building.

In the installed state, the plastering strip, first variant, is adhesively connected to this component of the building by means of this adhesive layer on the other side of the double-sided adhesive foam tape.

In the plastering strip, second variant, the double-sided adhesive foam tape is adhesively connected to the base area by means of the adhesive layer on one side and to the plastering area by means of the adhesive layer on the other side.

According to the first and second variant embodiments, the foam adhesive tape according to the invention usually has a closed-cell foam.

This represents a significant difference to conventional one-sided adhesive PUR sealing tapes, which usually have an open-cell foam because they are impregnated for driving rain and such an impregnation is only possible with open-cell, but not with closed-cell foam materials.

A conventional, one-sided adhesive PUR sealing tape does not bond and therefore does not create a connection to the building component to which it is attached, in the diction of independent claim 1, no bond and therefore no connection to the first building component.

Because the foam adhesive tape in the first and second variant of the plastering strip according to the invention has a closed-cell foam, it is inherently impermeable to moisture or water, for example against penetrating rain or driving rain or - in the case of a horizontal installation of the plastering strip - against standing water.

Moisture or water cannot get into the interior of the double-sided adhesive foam tape because the cells are closed and do not allow moisture or water to enter.

Thus, the double-sided adhesive foam tape is, so to speak, water- and moisture-tight. No water or moisture is absorbed, as is the case with conventional, single-sided, open-cell PUR sealing tapes.

Because the foam of the double-sided adhesive foam tape is closed-cell, there is only a very limited possibility of expansion and movement absorption, which is usually in the range between 1 mm and 2 mm, which is sufficient for most applications and which is an additional demarcation from conventional ones represents single-sided adhesive and open-cell PUR sealing tapes.

According to a first embodiment of the first variant of the plaster strip according to the invention, the base body has a base area made of plastic and a plaster area made of plastic, which is intended for plastering into the plaster layer and / or for fixed connection to the thermal insulation.

According to a further embodiment of the first variant of the plastering strip according to the invention, the base area and the plastering area are designed in one piece. One side of the double-sided adhesive foam tape is adhesively connected to the base area by means of an adhesive bond.

According to a further embodiment of the first embodiment of the plastering strip according to the invention, the base area and the plastering area are designed separately from each other in such a way that a relative movement between the base area and the plastering area is made possible by means of a guide connection, if necessary after removing a strip-shaped protective tab.

According to one embodiment of the first and the second variant of the plastering strip according to the invention, the base area and the plastering area are connected to one another via a flexible material section which allows a relative movement between the base area and the plastering area.

According to one embodiment of the second variant of the plastering strip according to the invention, the base area is designed as a base wall. The plastering area can have a plastering area wall section which is arranged parallel to the base wall. The additional adhesive tape can be attached to an underside of the base wall by means of an adhesive connection. The double-sided adhesive foam tape can be connected with one side by means of an adhesive connection to the top of the base wall and with another side by means of an adhesive connection to the underside of the plastering area wall section. The flexible material section can connect an end section of the base wall to an end section of the plastering area wall section at a position in front of the foam adhesive tape, and allow a relative movement between the base area and plastering area.

According to a further embodiment of the second variant of the plastering strip according to the invention, the plastering area on the front of its plastering area wall section furthermore has a plastering area end section directed downwards, in particular at an angle. When viewed from the front, the plastering area end section can cover the flexible material section.

According to a further embodiment of the second variant of the plaster strip according to the invention, the additional adhesive tape also has foam, and the behavior of the additional adhesive tape made of foam in the event of fire is also reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1. All the advantages and embodiments that have been described here with reference to the double-sided adhesive foam adhesive tape apply to the additional adhesive tape. These are not explained again to avoid repetition.

The following embodiments relate to both the first and the second variant of the plastering strip according to the invention.

The plastering area can furthermore have a plastering web protruding upward and extending along the plastering strip. On the plastered area, an upwardly protruding reinforcement fabric section to be embedded in the plaster can also be provided. The reinforcement fabric section to be embedded in the plaster can be attached to the plaster web.

The plastering strip can furthermore have a strip-shaped protective flap which is connected to the base area or to the plastering area via a break-off material bridge of lesser thickness.

According to one embodiment, the closed-cell foam of the double-sided adhesive foam tape is designed in such a way that the walls between the individual cells are completely closed.

According to a further embodiment, the closed-cell foam of the double-sided adhesive foam tape has a density which is in the range> 20 kg / m ³ and <100 kg / m ³ . For comparison: expanding open-cell, one-sided adhesive PUR sealing tapes have a density between 180 and 540 kg / m ³ when installed and compressed. Thus, in this embodiment, the density of the double-sided adhesive foam adhesive tape according to the invention is significantly reduced in comparison.

According to a further embodiment of the present invention, this density range for the foam material of the double-sided adhesive foam tape relates to the installed state of the plaster strip.

According to a further embodiment, the double-sided adhesive foam tape has a material thickness which is in the range> 2 mm and <10 mm, and a movement absorption capacity of at least 1 mm in the direction of the material thickness.

According to a further embodiment, the double-sided adhesive foam tape has a width which is in the range> 6 mm and <20 mm.

The inventor of the present patent application has found that a double-sided adhesive foam tape, the density of which falls within the claimed range and which has a material thickness that falls within the claimed range, represents an optimal compromise between good fire behavior and good movement absorption.

The inventor has also found that the thicker and denser the foam adhesive tape, the better the fire behavior and that, on the other hand, for the use of a foam adhesive tape in a plaster strip, it does not make sense to use a foam adhesive tape that is too dense Select foam material, as the absorption of movement will then be too low because a foam adhesive tape with dense foam material does not absorb enough movement.

The foam material for the double-sided adhesive foam tape is therefore ideally foamed so much that the requirements for movement absorption are met, but at the same time not so much foamed that it still falls into fire protection class B2 "normally flammable" at least.

The inventor has also found that a minimum thickness of 2 mm and a minimum width of 6 mm are advantageous for the double-sided adhesive foam adhesive tape. Towards the top, the thickness of the double-sided adhesive foam tape should not exceed 10 mm and the width of the same should not exceed 20 mm.

According to a further embodiment, the base material of the double-sided adhesive foam adhesive tape comprises polyolefins, in particular polyethylene or polyols.

According to a further embodiment, the double-sided adhesive foam tape is designed as a non-expanding foam.

Expanding foam adhesive tapes are usually held in a compressed state in the delivery state by means of a locking means. This means of confinement is released when the plastering strip is installed. The foam adhesive tape then expands and then has a thickness / material strength that is usually a multiple of the thickness / material strength in the delivery state.

In the case of the double-sided adhesive foam tape according to the invention, on the other hand, the thickness / material thickness in the delivery state essentially corresponds to the thickness / material thickness in the installed state. A difference usually only arises from the absorption of movement, for example by reducing the distance between the first and second building components.

The behavior of the double-sided adhesive foam tape in the event of fire can be reduced to fire protection class B1 "hardly inflammable" according to DIN standard 4102-1.

According to a further embodiment, the plastering area furthermore has an upwardly protruding plastering web extending along the plastering strip, on which a reinforcing fabric section is provided which protrudes upward and is to be embedded in the plastering. This reinforcement fabric section is designed in particular as a glass fiber fabric, the coating and / or finish of which has a flame retardant.

According to a further finding of the inventors, the reinforcement fabric section of conventional plastering strips is often provided with a coating that is also easily combustible from the start. So far, no attention has been paid to this, as only the basic material of the plastering strip and its flammability were in focus. Therefore, the inventor has found that by providing the coating and / or the finish of the reinforcing fabric section of the plastering strip, which is designed as a glass fiber fabric, with a flame retardant, the behavior of the reinforcing fabric section in the event of fire also changes to fire protection class B2 "normally flammable" or to fire protection class B1 "hardly inflammable" can be reduced, which has a corresponding effect on the classification of the plastering strip as a whole in precisely this fire protection class.

This is important both for the delivery condition and for the installed condition of the plastering strip, as well as for the installation phase of the plastering strip, because a fire with a different fire effect can also arise during the installation phase. Because, according to the invention, the behavior of the reinforcement fabric section in the event of fire is reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1 and by reducing the risk of inflammation of the plastering strip as a whole, the development or spread of a fire can also be avoided can be effectively counteracted during the installation phase, in which the reinforcement fabric section is partially accessible to a flame over a large area.

The flame retardant of the foam adhesive tape can reduce the behavior of the foam adhesive tape in the event of fire to fire protection class B2 "normally flammable" or to fire protection class B1 "hardly inflammable" according to DIN standard 4102-1.

If the term flame retardant (s) is used below, it is to be understood that it is both the flame retardant (s) with which the double-sided adhesive foam tape is provided and the flame retardant (s) with which the coating and / or the Finishing of the optionally available reinforcement fabric section, designed as a glass fiber fabric, can be provided.

The flame retardant can be designed as a halogenated flame retardant, a nitrogen-based flame retardant, an organophosphorus flame retardant, or an inorganic flame retardant.

The flame retardant can be designed as an additive flame retardant which is introduced as an additive into the base material of the foam adhesive tape, in particular in the polyethylene base material of the foam adhesive tape, in particular is arranged in its pores.

The flame retardant can be designed as a halogenated flame retardant which is selected from the group of TCPP, TDCP, TBBA, TBBPA, chlorinated paraffins and polyolefins.

The flame retardant can be designed as a non-halogenated flame retardant which is selected from the group of RDP, BDP, aluminum hydroxide, magnesium hydroxide and trialkyl phosphates.

The flame retardant can be in the form of phosphoramidates or as polymer FR, as HBCD or as DOPO (9,10-dihydro-10-oxa-phosphaphenatrenoxoid).

The invention also relates to the use of a double-sided adhesive foam adhesive tape in a plastering strip according to the first variant for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular thermal insulation and / or a Plaster layer, which has a base made of plastic, to reduce the behavior of the foam adhesive tape in the event of fire to fire protection class B2 "normally inflammable" according to DIN standard 4102-1: 1998 or to fire protection class B1 "hardly inflammable according to DIN standard 4102- 1: 1998; one side of the double-sided adhesive foam tape is connected to the base body by means of an adhesive connection and the other side is equipped with an adhesive layer and is intended for adhesive connection to the first component of the building; the double-sided adhesive foam tape is a Base material st, whose behavior in the event of fire falls into fire protection class B1 "hardly inflammable" according to DIN standard 4102-1 or into fire protection class B2 "normal inflammable "according to DIN standard 4102-1; the double-sided adhesive foam tape has a closed-cell foam and a flame retardant.

All advantages and embodiments that have been described here with reference to the plastering strip according to the first embodiment variant apply to this use. These are not explained again to avoid repetition.

The invention also relates to the use of a double-sided adhesive foam adhesive tape in a plastering strip according to the second variant for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular thermal insulation and / or a Plaster layer, which has a base made of plastic, to reduce the behavior of the foam adhesive tape in the event of fire to fire protection class B2 "normally inflammable" according to DIN standard 4102-1: 1998 or to fire protection class B1 "hardly inflammable according to DIN standard 4102- 1: 1998; the plastering strip having a base area and a plastering area which is intended for plastering into the plaster layer and / or for a permanent connection to the thermal insulation, the base area and / or the plastering area having a base body made of plastic; the double-sided adhesive Foam tape with one side is connected to the base area by means of an adhesive connection and to the plastering area on another side by means of an adhesive connection; and wherein an additional adhesive tape, in particular made of foam, is provided, which is connected to the base area on one side by means of an adhesive connection and which is equipped with an adhesive layer on the other side and is intended for connection to the first component of the building; wherein the double-sided adhesive foam tape has a base material whose behavior in the event of fire falls into fire protection class B1 “hardly inflammable” according to DIN standard 4102-1 or into fire protection class B2 “normally inflammable” according to DIN standard 4102-1; wherein the double-sided adhesive foam tape comprises a closed-cell foam and a flame retardant.

All advantages and embodiments that have been described here with reference to the plastering strip according to the second embodiment variant apply to this use. These are not explained again to avoid repetition.

The invention also relates to a building transition with a first building component designed as a window or door frame and with a second building component, in particular thermal insulation and / or a plaster layer; wherein a plaster strip according to the first variant is provided, which is introduced with a base area into a gap between the first and second building component and is glued to the first building component with its double-sided adhesive foam tape.

All advantages and embodiments that have been described here with reference to the plastering strip according to the first embodiment variant apply to this building transition. These are not explained again to avoid repetition.

According to a first embodiment of this building transition, a plaster layer is applied to the second building component, which extends up to the plastering strip, in particular up to the plastering area or a pull-off edge thereof, so that the part of the plastering strip that can be reached from outside by a flame in the event of a fire the outsides of the double-sided adhesive foam tape and the base area and possibly the plastered area is formed.

The invention also relates to a building transition with a first building component designed as a window or door frame and with a second building component, in particular thermal insulation and / or a plaster layer; a plastering strip according to the second variant is provided, which is introduced into a gap between the first and second building component and is glued to the first building component with its additional adhesive tape and part of its plastering area is in contact with the thermal insulation.

All advantages and embodiments that have been described here with reference to the plastering strip according to the second embodiment variant apply to this building transition. These are not explained again to avoid repetition.

According to a first embodiment of this building transition, a plaster layer is applied to the second building component, which extends up to the plastering strip, in particular up to the plastering area or a pull-off edge thereof, so that the part of the plastering strip that can be reached from the outside by a flame in the event of a fire through the Outer sides of the additional adhesive tape, the base area and the double-sided adhesive foam tape as well as through the is formed in front of the double-sided adhesive foam tape located section of the underside of the plastered area.

Alternatively, the invention can also be characterized as follows:

Plastering strip, third variant:

• einen Grundkörper aus Kunststoff; und
• ein doppelseitig klebendes Schaumstoff-Klebeband, das mit einer Seite mittels Klebeverbindung mit dem Grundkörper verbunden ist und das mit einer anderen Seite mit einer Klebeschicht ausgestattet und zur Klebeverbindung mit dem ersten Bauteil des Gebäudes bestimmt ist;
• wobei das doppelseitig klebende Schaumstoff-Klebeband ein Grundmaterial aufweist, dessen Verhalten im Brandfall in die Brandschutzklasse B1 "schwer entflammbar" nach der DIN-Norm 4102-1 oder in die Brandschutzklasse B2 "normal entflammbar" nach der DIN-Norm 4102-1 fällt;
• wobei das doppelseitig klebende Schaumstoff-Klebeband einen geschlossenzelligen Schaumstoff mit einer Dichte aufweist, die im Bereich > 20 kg/m³ und < 100 kg/m³ liegt;
• wobei das doppelseitig klebende Schaumstoff-Klebeband eine Materialstärke/Dicke, die im Bereich > 2 mm und < 10 mm liegt, und eine Bewegungsaufnahmefähigkeit von 1 - 2 mm in Materialstärkenrichtung aufweist; und
• wobei das doppelseitig klebende Schaumstoff-Klebeband eine Breite aufweist, die im Bereich > 6 mm und < 20 mm liegt.

Plastering strip for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular having thermal insulation and / or a plaster layer

• a base body made of plastic; and
• a double-sided adhesive foam tape, one side of which is connected to the base body by means of an adhesive connection and which is equipped with an adhesive layer on the other side and is intended for adhesive connection to the first component of the building;
• wherein the double-sided adhesive foam tape has a base material whose behavior in the event of fire falls into fire protection class B1 “hardly inflammable” according to DIN standard 4102-1 or into fire protection class B2 “normally inflammable” according to DIN standard 4102-1;
• wherein the double-sided adhesive foam tape has a closed-cell foam with a density in the range> 20 kg / m ³ and <100 kg / m ³ ;
• wherein the double-sided adhesive foam adhesive tape has a material thickness which is in the range> 2 mm and <10 mm, and a movement absorption capacity of 1 - 2 mm in the direction of the material thickness; and
• wherein the double-sided adhesive foam tape has a width which is in the range> 6 mm and <20 mm.

Plastering strip, fourth variant:

• einen Basisbereich;
• einen Anputzbereich, der zum Einputzen in die Putzschicht und/oder zur festen Verbindung mit der Wärmedämmung bestimmt ist;
• ein doppelseitig klebendes Schaumstoff-Klebeband, das mit einer Seite mittels Klebeverbindung mit dem Basisbereich und mit einer anderen Seite mittels Klebeverbindung mit dem Anputzbereich verbunden ist; und
• ein zusätzliches Klebeband, insbesondere aus Schaumstoff, das mit einer Seite mittels Klebeverbindung mit dem Basisbereich verbunden ist und das mit einer anderen Seite mit einer Klebeschicht ausgestattet und zur Verbindung mit dem ersten Bauteil des Gebäudes bestimmt ist;
• wobei der Basisbereich und/oder der Anputzbereich einen Grundkörper aus Kunststoff aufweisen;
• wobei das doppelseitig klebende Schaumstoff-Klebeband ein Grundmaterial aufweist, dessen Verhalten im Brandfall in die Brandschutzklasse B1 "schwer entflammbar" nach der DIN-Norm 4102-1 oder in die Brandschutzklasse B2 "normal entflammbar" nach der DIN-Norm 4102-1 fällt;
• wobei das doppelseitig klebende Schaumstoff-Klebeband einen geschlossenzelligen Schaumstoff mit einer Dichte aufweist, die im Bereich > 20 kg/m³ und < 100 kg/m³ liegt;
• wobei das doppelseitig klebende Schaumstoff-Klebeband eine Materialstärke/Dicke, die im Bereich > 2 mm und < 10 mm liegt, und eine Bewegungsaufnahmefähigkeit von 1 - 2 mm in Materialstärkenrichtung aufweist; und
• wobei das doppelseitig klebende Schaumstoff-Klebeband eine Breite aufweist, die im Bereich > 6 mm und < 20 mm liegt.

Plastering strip for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular having thermal insulation and / or a plaster layer

• a base area;
• a plastering area intended for plastering into the plaster layer and / or for a permanent connection with the thermal insulation;
• a double-sided adhesive foam tape, one side of which is adhesively bonded to the base area and the other side is adhesively bonded to the plastered area; and
• an additional adhesive tape, in particular made of foam, which is connected to the base area on one side by means of an adhesive connection and which is equipped with an adhesive layer on the other side and is intended for connection to the first component of the building;
• wherein the base area and / or the plastered area have a base body made of plastic;
• wherein the double-sided adhesive foam tape has a base material whose behavior in the event of fire falls into fire protection class B1 “hardly inflammable” according to DIN standard 4102-1 or into fire protection class B2 “normally inflammable” according to DIN standard 4102-1;
• wherein the double-sided adhesive foam tape has a closed-cell foam with a density in the range> 20 kg / m ³ and <100 kg / m ³ ;
• wherein the double-sided adhesive foam adhesive tape has a material thickness which is in the range> 2 mm and <10 mm, and a movement absorption capacity of 1 - 2 mm in the direction of the material thickness; and
• wherein the double-sided adhesive foam tape has a width which is in the range> 6 mm and <20 mm.

It is true that no independent patent claims are currently directed to these design variants of plastering strips. However, the applicant expressly reserves the right to make claims on this at a later date.

With regard to the advantages and embodiments resulting from the individual features of the plastering strips, third and fourth variant, reference is made to the advantages and embodiments specified in this patent application with reference to the plastering strips, first and second variant, as well as to the corresponding parts of the description, which apply mutatis mutandis .

• Fig. 1 zeigt eine Seitenansicht einer ersten Anputzleiste gemäß einem ersten Ausführungsbeispiel der Erfindung;
• Fig. 2 zeigt eine Seitenansicht einer zweiten Anputzleiste gemäß einem zweiten Ausführungsbeispiel der Erfindung; und
• Fig. 3 zeigt eine Seitenansicht einer dritten Anputzleiste gemäß einem dritten Ausführungsbeispiel der Erfindung;

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying figures.

• Fig. 1 shows a side view of a first plaster strip according to a first embodiment of the invention;
• Fig. 2 shows a side view of a second plaster strip according to a second embodiment of the invention; and
• Fig. 3 shows a side view of a third plaster strip according to a third embodiment of the invention;

The first plastering strip 2, the second plastering strip 26, and the third plastering strip 68 are described below as representative of any plastering strips; they are characterized by a profile cross-section that is constant over their entire length. The base area 4, the plastering area 10 and the strip-shaped protective flap 22 of the first plastering strip 2, the base area 28 (without foam adhesive tape 32), the displaceable front area 40 and the strip-shaped protective flap 60 of the second plastering strip 26, as well as the base area 70 (without foam adhesive tape 32). Adhesive tape 74 and 76), the plastering area 72 and the strip-shaped protective flap 86 of the third plastering strip 68 can be produced inexpensively by extrusion and form extrusion parts.

The Figures 1 , 2 and 3 show the plaster strips 2, 26 and 68 in the delivery state, in which the strip-shaped protective flap 22, 60 or 86 has not yet been removed.

In the Fig. 1 The first plastering strip 2 shown as an example comprises a base area 4 and a plastering area 10 with a reinforcement fabric section 18 and a strip-shaped protective flap 22.

The base area 4 and the plastering area 10 are formed integrally with one another, so that the present plastering strip 2 can also be referred to as a one-piece plastering strip 2.

The strip-shaped protective flap 22 is connected to a cleaning end side 14 of the plastering area 10 by means of a break-off material bridge 24. The strip-shaped protective flap 22 also has a spacer web which, when the plastering strip 2 is installed, can rest against the outside of a first building component.

The base area 4, the plaster area 10 and the strip-shaped protective flap 22 have been produced together by extrusion.

In the present case, the base region 4 is represented by an in Fig. 1 horizontally extending base wall 6 and a double-sided adhesive foam tape that is fixed to it 8, which is described in more detail below and which is intended for attachment to a first building component, namely a window or door frame.

The plastering area 12 is formed by the outside of the path leg 12, by the plastering end side 14 directed away from the window or door frame, and by the reinforcing fabric section 18.

On the underside, the first plastering strip 2 has a stepped course; the underside of the cleaning end side 14, based on the installation situation, is closer to the window / door frame than the underside of the base wall 6.

In the present case, the reinforcement fabric section 18 is connected to the extension leg 12 by means of a welded connection 20.

The cleaning end side 14 directed away from the window or door frame and the surface of the path leg 12 directed from the thermal insulation towards the opposite window or door frame side are provided with a channel profile 16 to improve the adhesion of the plaster.

On the construction site, the plastering strip 2 is first cut to the corresponding length given by the dimensions of the window or door opening and then attached to the transition between the window / door frame and the thermal insulation by placing the plastering strip 2 with its base area 4 in the gap between the window and or door frame and thermal insulation is inserted so that the plastering strip 2 rests with the top of its base wall 6 on the gap-side face of the thermal insulation, rests with the back of its extension leg 12 on the outside of the thermal insulation and with the double-sided adhesive foam tape 8 on the surface of the Window or door frame is glued.

After the window with the window frame or the door with the door frame has been covered with a film which is fastened, in particular glued, to the strip-shaped protective flap 22, plastering takes place. Here, if necessary after prior application of a filler behind the reinforcement fabric section 18, a plaster layer embedding the reinforcement fabric section 18 and the plastering area 10 up to a plaster removal edge is applied, which is essentially formed by the end of the plaster end side 14 to which the strip-shaped protective flap 22 connects. The strip-shaped protective flap 22 is broken off and removed after plastering has been carried out.

The double-sided adhesive foam adhesive tape 8 can have a certain expandability and compressibility in order to compensate for changes in distance between the underside of the base wall 6 and the surface of the window or door frame within certain limits, which ensures a good seal under changing conditions.

In the Fig. 2 The second plastering strip 26 shown as an example has, like the first plastering strip 2, a base area 28, which can be fastened with a section to a first building component, in particular a window or door frame, a plastering area 40, which in the present case is designed as a displaceable front area 40, to which a reinforcement fabric section 64 is attached and which, together with the reinforcement fabric section 64, is intended to be embedded in a plaster layer, as well as via a strip-shaped protective flap 26.

In the case of the strip-shaped protective flap 60, the adhesive layer applied to the outside can now be seen; it is connected to both the base area 28 and the plastered area 40 via a break-off material bridge 62, otherwise it aligns with the strip-shaped protective flap 22 Fig. 1 and will not be explained again in the following.

In contrast to the one-piece first plastering strip 2, the second plastering strip 26 is now designed in two parts, with a base area 28 and a plastering area 40 that can be displaced for it.

The base area 28 comprises a base wall 30 with a foam adhesive tape 32 attached to its underside, which is described in more detail below and which, with its underside in the assembled state of the plastering strip 26, lies tightly against the window or door frame and is glued to it.

At the right outer end of the base wall 38, a protective lip (not shown here) can extend downwards, which can be made of a softer, flexible plastic material and can thus have a certain flexibility. Such a flexible protective lip can apply to the surface of the window or door frame when the second plastering strip 26 is installed, namely at a position outside of the double-sided adhesive foam tape 32 and thus reliably prevents moisture from getting to the double-sided adhesive foam tape 32 can reach. The protective lip can in particular together with the base wall 30 and the following in more detail explained guide extension 36, with the plaster area 40 and the strip-shaped protective flap 60 are coextruded.

A guide extension 36 projects upwardly away from the base wall 30 and is formed integrally therewith. This guide extension 36 comprises a widened end head 38 arranged at the top, an extension wall area of lesser wall thickness underneath and an extension wall area of further reduced wall thickness which forms the connection with the base wall 30.

The displaceable plastering area 40 is divided into a path leg 36 located at the top, a receiving space 42 attached behind it with an internal thermal insulation contact side 48 and an outer plaster side 54, the path leg 46 having an inner plaster side 50 and an outer plaster side 54, and one on the lower The cleaning end side 56 attaching to the outer end of the receiving space 42 and running outward.

The receiving space 42 is dimensioned such that the front end of the end head 38 is at a small distance from the upper wall of the receiving space 42 when the guide extension 36 is completely located in the receiving space 42 and accordingly when the rear end surface of the side walls of the receiving space 42 is in contact with the front of the base wall 30 is positioned. At the lower end of the inner sides of the receiving space 42, opposing guide projections 44 are attached and extend so far inside, based on the axis of symmetry of the receiving space 42, that they receive and guide the guide extension 36 therebetween. In the position of the guide extension 36 shown, the guide projections 44 engage the lowermost area of the guide extension 36 with a reduced wall thickness and hold this guide extension 36 and thus the entire base area 36 in the minimum displacement position with respect to the displaceable plastering area 40. The guide projections 44 can consist of a plastic material that is softer than the material of the displaceable plastering area 40.

If one imagines that the break-off material bridge or the break-off material bridges 62 of the base area 28 and of the displaceable plastering area 40 are severed to form the strip-shaped protective flap 60, the plastering area 40 can be displaced with respect to the base area 28, up to a maximum Displacement position in which the guide projections 44 strike the end head 38. This can cause movements between the thermal insulation / plaster layer and window / door frames are compensated in a particularly advantageous manner.

The upper path leg 46 extends upward from a central region of the upper wall of the receiving space 42. The inner plaster side 50 and the outer plaster side 52 of the path leg 46, the outer plaster side 54 of the outer wall of the receiving space 42 and the cleaning end side 56 are provided with cleaning grooves 58 in order to enlarge the surface to which the plaster adheres, and thus a better one To create a connection with the plaster. This channel profile 58 can, as in Fig. 2 can be seen, also extend over the front wall of the receiving space 42.

On the outer plaster side 52 of the Wegrag leg 46 is an in Fig. 2 reinforcing fabric section 64 extending forward is attached, specifically by means of a welded joint 66.

When installing the second plaster strip 26, there does not have to be a gap between the thermal insulation and the window / door frame.

At the construction site, the plastering strip 26 is first cut to the corresponding length given by the dimensions of the window or door opening and then attached to the transition between window / door frame and thermal insulation by applying it to the thermal insulation with the thermal insulation contact side 48 and with the double-sided adhesive foam tape 32 is applied to the window / door frame and glued. The protective film is then stretched over the window or door frame and fixed to the adhesive layer of the strip-shaped protective flap 60. The plastering area 40 is then plastered in, if necessary after previously applying filler behind the reinforcement fabric section 64. This filler can in particular fill the space between the outside of the thermal insulation and the reinforcement fabric section 64. When cleaning, the plaster layer extends either over the entire area of the plastering area 40, which is provided with channel profiling 58, or, if filler has been applied, over the outer plaster sides 52, 54 and over the plaster end side 56 to the plaster end edge, which passes through the end of the plaster end side 56 is defined.

After the plastering has been completed, the strip-shaped protective flap 60 can be removed by severing the break-off material bridges 62, for example by pulling them off by hand, possibly with cutting the ends.

By severing the break-off material bridge 62, which previously held the base area 28 and the displaceable plastering area 40 together via the strip-shaped protective flap 60, the displaceable plastering area 40 is now decoupled from the base area 28 and can be separated by the construction with guide extension 36, end head 38, and receiving space 42 with guide projections 44 move relative to the base wall 30, and thus compensate for movements between the thermal insulation and plaster layer as well as the window / door frame.

The second plaster strip 26 is a two-part plaster strip described by way of example, in which two areas 28 and 40 can be shifted against each other in order to be able to compensate for movements between the thermal insulation / plaster layer and the window / door frame.

The invention also covers other two-part plaster strips, in particular two-part plaster strips that are at least partially inserted into a gap between the thermal insulation and the window / door frame.

Plastering strips in which the base area 28 and the plastering area 40 are connected to one another, for example by means of a flexible material area, a so-called loop, are regarded as one-piece plastering strips. Plastering strips in which the base area 28 and the plastering area 40 are not connected to one another are, however, viewed as two-part plastering strips.

In the Fig. 3 Third plastering strip 68 shown as an example comprises a base area 70, a plastering area 78 with a reinforcing fabric section 90 and a strip-shaped protective flap 86.

The base region 70 is designed in the form of a base wall. The plastering area 72 comprises a plastering area wall section 78, which is arranged parallel to the base wall of the base area 70 and is approximately the same width as this, a cleaning end side section 82 on the outside of the building, which attaches to the inside of the plastering area wall section 78 and which faces downwards, that is to say is bent in the direction of the window or door frame, and a path leg 80 protruding upward from the plastering area wall section.

The base area 70 and the plaster area 78 are formed separately from one another. It is thus a two-part plastering strip, in which the base area 70 and the plastering area 72 can be displaced relative to one another for movements to be able to compensate between thermal insulation / plaster layer and window / door frame.

The strip-shaped protective flap 86 is in turn connected to the cleaning end-side section 82 by means of a break-off material bridge 88. The strip-shaped protective flap 86 can in turn have a spacer web, not shown here, which can rest against the outside of the window or door frame when the plastering strip 68 is installed.

The base area 70, the plaster area 72 and the strip-shaped protective flap 86 have been produced together by extrusion.

The plastering area 72 comprises the fixing side located to the left of the path leg 80 and the plaster side located to the right of the path leg 80.

The specification page is used in particular by the in Fig. 3 the back of the Wegrag leg 80 on the left and of the in Fig. 3 the upper side of the section of the plastering area wall section 78 situated to the left of the path leg 80. One can easily imagine that thermal insulation is applied to the corner bracket formed in this way.

The plaster side is taken from the in Fig. 3 Right outside of the path leg 80, formed by the plaster end side 84 facing away from the window or door frame, including the portion of the plaster area wall section 78 located on the right, that is outside the path leg 80.

Like in the Fig. 1 In the case of the third plaster strip 68, too, a reinforcing fabric section 90 is in turn fastened by means of a welded connection 92 to the extension leg 80, in particular on the outside thereof. The direction of extension of the reinforcement fabric section 90 lies parallel to the direction of extension of the path leg 80.

The path leg 80 is arranged at a width position to the right of the center of the plastered area wall section 78, in particular at approximately two thirds of the width of the plastered area wall section 78.

The base wall of the base region 70 and the plastered area wall section 78 of the plastered area 72 are made by means of a double-sided adhesive foam adhesive tape 74 connected to each other. This is glued in particular with its lower adhesive side to the upper side of the base wall of the base area 70 and with its upper side to the underside of the plastering area wall section 78.

The thickness of the foam adhesive tape 74, that is to say in the plane of the drawing in Fig. 3 Seen upwards or downwards, is significantly thicker than the thickness of the base wall 70 or the plastering area wall section 78. It corresponds approximately to the distance with which the downwardly bent cleaning end side section 82 goes down over the underside of the plastering area wall section 78 stands and is possibly even formed somewhat larger than this distance.

The width of the foam adhesive tape 74, in the plane of the drawing in Fig. 3 seen to the left or right, is dimensioned somewhat narrower than the total width of the base wall of the base region 70. In the present embodiment, the width of the double-sided adhesive foam tape 74 corresponds to about half to two thirds of the width of the base wall of the base region 70.

The double-sided adhesive foam adhesive tape 74 can in turn have a certain ability to expand and compress to allow for changes in the distance between the window or door frame, in particular between the base wall of the base area 70 bonded to it and the thermal insulation with plaster layer, in particular the plaster area connected to it by applying the plaster layer. To compensate for wall section 78 within certain limits, which ensures a good seal under changing conditions. The thickness and width of the double-sided adhesive foam tape 74 enables movement to be absorbed between the window / door frame on the one hand and the thermal insulation and / or plaster layer on the other, both in the direction of the gap depth and in the direction of the gap width.

An additional adhesive strip 76 is provided on the underside of the base wall of the base region. This is glued in particular with its upper side to the lower side of the base wall of the base region 70. On its underside, this adhesive tape is intended to be glued to the window or door frame. For this purpose, the additional adhesive tape 76 can in particular be provided with a covering means (not shown here), in particular a paper strip, which can be removed before the plastering strip 68 is installed and before the additional adhesive tape 76 is glued to the outside of the window or door frame.

Furthermore, the base area 70 and the plastered area 72, in particular the base wall of the base area 70 and the plastered area wall section 78 are connected to one another at a position in front of the double-sided adhesive foam tape 74 by means of a flexible material section 94, which allows a relative movement between the base area 70 and the plastered area 72 allowed. This flexible material section 94 attaches in particular to the front end of the base wall, in particular to an upper side of the front end of the base wall and to the front end of the underside of the plastering area wall section 78 and is made of the same material, in particular hard plastic, for example PVC, such as the base wall and plaster area 72 made and extruded with it. As an alternative to this, the flexible material section 94 has a softer plastic material than the base wall and the plastering area 72, in particular a thermoplastic elastomer plastic material or TPE, and has been coextruded with the base wall and the plastering area 72.

Optionally, the third plaster strip 68 can have a flexible material section 94. As in Fig. 3 can be seen, the flexible material section 94 in the in Fig. 3 The illustrated delivery state of the third plaster strip 68 has a curved shape and is designed as a narrow, curved strip of material, which is why the flexible material section 94 can also be referred to as a loop. If one imagines that the base wall 70 and the plastering area wall section 78 move away from each other in the installed state of the third plastering strip 68 due to a temperature fluctuation at the building junction and the double-sided adhesive foam tape 74 may move away from the base wall or the plastering area -Wall section 78 detaches, then the flexible material section 94 stretches, the connection of the same between the base wall of the base area 70 and the plastering area wall section 78 being maintained. The flexible material section 94 thus has a greater expansion reserve than the double-sided adhesive foam tape 74 and ensures a seal between the base wall of the base area 70 and the plastering area wall section 78, even if the distances between the base wall of the base area 70 and the plaster area wall section 78 are increased.

On the construction site, the plastering strip 68 is first cut to the corresponding length given by the dimensions of the window or door opening and is then attached to the building transition between the window or door frame and the thermal insulation by placing the plastering strip 68 in the gap between the window and or the door frame and thermal insulation are pushed in or glued on in front of the thermal insulation so that the front of the thermal insulation rests against the back of the path leg 80. The thermal insulation lies with her Gap-side end face to the top of the plastered area wall section 78. After the covering means of the additional adhesive tape 76 has been removed beforehand, if necessary, the plastering strip 68 is glued to the front surface of the window or door frame with the underside of the additional adhesive tape 76.

After the window with the window frame or the door with the door frame has been covered with a film which is fastened, in particular glued, to the protective flap 22, plastering takes place. In this case, if necessary after prior application of a filler behind the reinforcement fabric section 90, a reinforcement fabric section 90 and the plastering area up to the plaster removal edge, which is formed by the front end of the plastering end side 82, and the plastering area 72 from the path leg 80 plaster layer embedding up to this plaster removal edge is applied. This layer of plaster thus covers from the outside, i.e. in Fig. 3 As seen from the right, the plastered area 72 is complete. The strip-shaped protective flap 86 is broken off and removed after the plastering has been completed.

According to the invention, the double-sided adhesive foam adhesive tape 8 of the first plastering strip 2, the double-sided adhesive foam adhesive tape 32 of the second plastering strip 26 and the double-sided adhesive foam adhesive tape 74 and optionally the additional adhesive tape 76 of the third plastering strip 68, which also have foam as material can, in common that they - in contrast to conventional foam adhesive tapes - have a behavior in the event of fire that is at least reduced to fire protection class B2 "normally flammable" according to DIN standard 4102-1 and in particular to fire protection class B2 "normally flammable" "or in the fire protection class B1" flame retardant "according to DIN standard 4102-1, and that they have a closed-cell foam and a flame retardant.

In order to achieve this fire protection classification, the base material of the double-sided adhesive foam tape has 8, 32, 74 and optionally 76 PVC, polystyrene PS, polypropylene PP or polyolefins, in particular polyethylene or polyols, whose behavior in the event of fire is inherently fire protection class B3 "Easily flammable" according to DIN standard 4102-1, and the double-sided adhesive foam tape 8, 32, 74 and optionally 76 is also provided with a flame retardant.

The flame retardant can be designed as a halogenated flame retardant, a nitrogen-based flame retardant, an organophosphorus flame retardant, or an inorganic flame retardant.

The flame retardant can be designed as an additive flame retardant which is introduced as an additive into the base material of the foam adhesive tape, in particular in the polyethylene base material of the foam adhesive tape, in particular is arranged in its pores.

The flame retardant can be designed as a halogenated flame retardant which is selected from the group of TCPP, TDCP, TBBA, TBBPA, chlorinated paraffins and polyolefins.

The flame retardant can be designed as a non-halogenated flame retardant which is selected from the group of RDP, BDP, aluminum hydroxide, magnesium hydroxide and trialkyl phosphates. In particular, it can be aluminum hydroxide.

The flame retardant can be in the form of phosphoramidates or as polymer FR, as HBCD or as DOPO (9,10-dihydro-10-oxa-phosphaphenatrenoxoid).

The closed-cell foam of the double-sided adhesive foam adhesive tape 8, 32, 74 and optionally 76 has a density in the range> 20 kg / m ³ and <100 kg / m ³ .

The closed-cell foam of the double-sided adhesive foam tape 8, 32, 74 and optionally 76 has a material thickness that is in the range> 2 mm and <10 mm, and a movement absorption capacity of at least 1 mm in the direction of the material thickness.

The closed-cell foam of the double-sided adhesive foam adhesive tape 8, 32, 74 and optionally 76 has a width which is in the range> 6 mm and <20 mm.

The flame retardant can be added during the foaming process of the base material of the foam adhesive tape 8, 32, 74, optionally 76, and thus introduced into the base material and in particular into its pores.

If one imagines the plaster strip 2, 26 and 68 in the installed state at the building transition between window or door frame and thermal insulation, the base body of the first plaster strip 2 is complete when viewed from the outside covered by the plaster layer up to the plaster removal edge on the plaster end side 14. In the case of the second plastering strip 26, the displaceable front area / plastering area 40 is completely covered by a layer of plaster that extends as far as the plaster removal edge on the plaster end side 56. In the third plaster strip 68, the plaster area 72 is completely covered by a plaster layer up to a plaster pull-off edge at the end of the plaster end side 84.

If one now imagines that the building transition is exposed to a flame from the outside, this flame only reaches the area of the respective plaster strip 2, 26 and 68 that is not covered by the plaster layer.

In the case of the first plastering strip 2, this is formed by the lower area of the base body of the plastering strip 2 lying in front of the double-sided adhesive foam adhesive tape 8 and from the outside of the double-sided adhesive foam adhesive tape 8.

In the case of the second plastering strip, this is the outside of the base wall 30, the outside of the foam adhesive tape 32, and part of the underside of the plastering area 40.

In the case of the third plastering strip 68, this is the underside of the area of the underside of the plastering area 72 located in front of the double-sided adhesive foam adhesive tape 74 or in front of the flexible material section 94, the flexible material section 94 or the outside of the double-sided adhesive foam adhesive tape 74, the outer area of the base wall of the base area 70 and the outer area of the additional adhesive tape 76.

The parts of the plastering strip 2, 26 and 68 which are made of hard plastic usually have a behavior in the event of fire which corresponds to the fire protection classification B1 "hardly inflammable" or B2 "normally inflammable".

In the first plastering strip 2, this is the base body of the strip with base wall 4, path leg 12 and cleaning end side 14. In the second plastering strip 26, this is the base wall 30 with guide extension 36 and the movable front area / plastering area 40. In the case of the third plastering strip 68, this is the Base wall of the base area 70 and the plastered area 72 with the plastered area wall section 78, with the extension leg 80 and with the plaster end side 82.

In conventional plastering strips, the adhesive tapes are made of easily flammable polyethylene material, and in the event of a fire, a flame can reach them, as can be easily imagined from the installation situations explained above.

Therefore, according to the invention, the behavior in the event of fire or the fire protection classification of the double-sided adhesive foam adhesive tape 8 of the first plastering strip 2, the double-sided adhesive foam adhesive tape 32 of the second plastering strip 26 and the double-sided adhesive foam adhesive tape 74 and optionally the additional adhesive tape 76, the may also have foam, the third plaster strip 68 reduced to fire protection class B2 “normally inflammable” or B1 “hardly inflammable”, as explained above.

In addition, the reinforcement fabric section 18, 64, 90 of the plaster strips 2, 26, 68 can be designed as a glass fiber fabric that has a coating and / or finish, and this can also be provided with a flame retardant of the type described here in order to also be used for the Reinforcement fabric section 18, 64, 90 of plastering strips 2, 26, 68 and thus the fire protection classification of fire protection class B2 "normally inflammable" or fire protection class B1 "flame retardant" according to DIN standard 4102- for the entire plastering strip 2, 26, 68 1 to achieve.

In this way, the behavior of the entire plastering strip 2, 26, 68 in the event of a fire is reduced to fire protection class B2 “normally flammable” or B1 “hardly flammable” according to DIN standard 4102-1. This means that there is also optimal fire protection at the building transition.

List of reference symbols

2

first plastering strip

4th

Base area

6th

Base wall

8th

Foam tape

10

Plastering area

12th

Away legs

14th

Cleaning side

16

Channel profiling

18th

Reinforcement mesh section

20th

Welded joint

22nd

strip-shaped protective flap

24

Break-off material bridge

26th

second plastering strip

28

Base area

30th

Base wall

32

Foam tape

36

Guide process

38

End head

40

Movable front area / plastering area

42

Recording room

44

Leadership edge

46

Away legs

48

Thermal insulation system side

50

inner plaster side

52

outer plaster side

54

outer plaster side

56

Cleaning side

58

Cleaning grooves

60

strip-shaped protective flap

62

Break-off material bridge

64

Reinforcement mesh section

66

Welded joint

68

third plastering strip

70

Base area

72

Plastering area

74

Foam tape

76

additional tape

78

Plastered area wall section

80

Away legs

82

Cleaning side

84

Channel profiling

86

strip-shaped protective flap

88

Break-off material bridge

90

Reinforcement mesh section

92

Welded joint

94

flexible material section

Claims (14)

1. A plastering strip (2, 26) for placement at a building transition (44) between a first building component designed as window or door frame and a second building component, in particular a thermal insulation and/or a plaster layer, comprising:

   a base body (6, 12, 14; 28, 40) of plastics material; and

   a foam adhesive tape (8, 32) that is adhesive on both sides and on one side thereof is adhesively bonded to the base body (6, 12, 14; 28, 40) and on another side thereof is provided with an adhesive layer and is intended to be adhesively bonded to the first component of the building;

   characterised in that

   the double-sided foam adhesive tape (8, 32) has a base material whose behavior in the event of fire is in fire protection class B1 "not easily flammable" according to DIN standard 4102-1: 1998-05 or in fire protection class B2 "normal flammability" according to DIN standard 4102-1: 1998-05;

   wherein the double-sided foam adhesive tape (8, 32) comprises a closed-cell foam and a flame retardant.
2. A plastering strip (68) for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and/or a plaster layer, comprising
   a base area (70);
   a plastering area (72) which is intended for plastering into the plaster layer and/or for fixed connection to the thermal insulation;
   a foam adhesive tape (74) that is adhesive on both sides and on one side thereof is adhesively bonded to the base area (70) and on another side thereof is adhesively bonded to the plastering area (72); and
   an additional adhesive tape (76), in particular of foam, which on one side thereof is adhesively bonded to the base area (70) and on another side thereof is provided with an adhesive layer and is intended to be adhesively bonded to the first component of the building;
   wherein the base area (70) and/or the plastering area (72) have a base body of plastics material;
   characterised in that
   the double-sided foam adhesive tape (74) has a base material whose behavior in the event of fire is in fire protection class B1 "not easily flammable" according to DIN standard 4102-1: 1998-05 or in fire protection class B2 "normal flammability" according to DIN standard 4102-1: 1998-05;
   wherein the double-sided foam adhesive tape (74) comprises a closed-cell foam and a flame retardant.
3. The plastering strip (2, 26, 68) according to claim 1 or 2,
   wherein the closed-cell foam of the double-sided foam adhesive tape (8, 32, 74) is designed such that the walls between the individual cells are completely closed.
4. The plastering strip (2, 26, 68) according to any of the preceding claims,
   wherein the closed-cell foam of the double-sided foam adhesive tape (8, 32, 74) has a density in the range of >20 kg/m³ and <100 kg/m³; and/or
   wherein the double-sided adhesive foam adhesive tape (8) has a material thickness which is in the range of > 2 mm and < 10 mm, and a movement absorption capacity of at least 1 mm in the material thickness direction; and/or
   wherein the double-sided foam adhesive tape (8) has a width which is in the range of > 6 mm and < 20 mm.
5. The plastering strip (2, 26, 68) according to any of the preceding claims, wherein the base material of the double-sided foam adhesive tape (8, 32, 74) comprises polyolefins, in particular polyethylene or polyols.
6. The plastering strip (2, 26, 68) according to any of the preceding claims,
   wherein the double-sided foam adhesive tape (8, 32, 74) is designed as a non-expanding foam.
7. The plastering strip (2, 26, 68) according to any of the preceding claims,
   wherein the behavior of the double-sided foam adhesive tape (8) in the event of fire is reduced to fire protection class B1 "not easily flammable" according to DIN standard 4102-1: 1998-05.
8. The plastering strip (2, 26, 68) according to any of the preceding claims,
   wherein the plastering area (10, 52, 54, 72) comprises furthermore an upwardly protruding plastering web (12, 46, 80) that extends along the plastering strip and on which an upwardly protruding reinforcement fabric section (18, 64, 90) is provided that is to be embedded in the plaster;
   wherein the reinforcement fabric section (18, 64, 90) is designed as a glass fibre fabric, the coating and/or finishing of which has a flame retardant.
9. The plastering strip (2, 26, 68) according to any of the preceding claims,
   wherein the flame retardant is designed as a halogenated flame retardant, a nitrogen-based flame retardant, an organophosphorus flame retardant, or an inorganic flame retardant; and/or
   wherein the flame retardant is designed as an additive flame retardant which is introduced as an additive into the base material of the foam adhesive tape (8, 32, 74), in particular into the polyethylene base material of the foam adhesive tape (8, 32, 74), in particular is arranged in the pores thereof.
10. The plastering strip (2, 26, 68) according to any of the preceding claims,
    wherein the flame retardant is designed as a halogenated flame retardant that is selected from the group of TCPP, TDCP, TBBA, TBBPA, chlorinated paraffins and polyolefins; or
    the flame retardant is designed as a non-halogenated flame retardant that is selected from the group of RDP, BDP, aluminium hydroxide, magnesium hydroxide and trialkyl phosphates; or
    wherein the flame retardant is in the form of phosphoramidates; or
    wherein the flame retardant is designed as polymer FR, as HBCD or as DOPO (9,10-dihydro-10-oxa-phosphaphenanthrene oxide).
11. The use of a foam adhesive tape (8, 32) that is adhesive on both sides on a plastering strip (2, 26) for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and/or a plaster layer, said plastering strip comprising a base body (6, 12, 14; 28, 40) of plastics material, for reducing the behavior of the foam adhesive tape in the event of fire to fire protection class B2 "normal flammability" according to DIN standard 4102-1: 1998-05 or fire protection class B1 "not easily flammable" according to DIN standard 4102-1: 1998-05;
    wherein the double-sided foam adhesive tape (8, 32) on one side thereof is adhesively bonded to the base body (6, 12, 14; 28, 40) and on another side thereof is provided with an adhesive layer and is intended to be adhesively bonded to the first component of the building;
    characterised in that
    the double-sided foam adhesive tape (8, 32) has a base material whose behavior in the event of fire is in fire protection class B1 "not easily flammable" according to DIN standard 4102-1: 1998-05 or in fire protection class B2 "normal flammability" according to DIN standard 4102-1: 1998-05;
    wherein the double-sided foam adhesive tape (8, 32) comprises a closed-cell foam and a flame retardant.
12. The use of a foam adhesive tape (8, 32) that is adhesive on both sides on a plastering strip (2, 26) for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and/or a plaster layer, said plastering strip comprising a base body of plastics material, for reducing the behavior of the foam adhesive tape in the event of fire to fire protection class B2 "normal flammability" according to DIN standard 4102-1: 1998-05 or fire protection class B1 "not easily flammable" according to DIN standard 4102-1: 1998-05;
    wherein the plastering strip (68) comprises a base area (70) and a plastering area (72) which is intended for plastering into the plaster layer and/or for fixed connection to the thermal insulation, wherein the base area (70) and/or the plastering area (72) have a base body of plastics material;
    wherein the double-sided foam adhesive tape (74) on one side thereof is adhesively bonded to the base area (70) and on another side thereof is adhesively bonded to the plastering area (72); and
    wherein there is provided an additional adhesive tape (76), in particular of foam, which on one side thereof is adhesively bonded to the base area (70) and on another side thereof is provided with an adhesive layer and is intended to be adhesively bonded to the first component of the building;
    characterised in that
    the double-sided foam adhesive tape (74) has a base material whose behavior in the event of fire is in fire protection class B1 "not easily flammable" according to DIN standard 4102-1: 1998-05 or in fire protection class B2 "normal flammability" according to DIN standard 4102-1: 1998-05;
    wherein the double-sided foam adhesive tape (74) comprises a closed-cell foam and a flame retardant.
13. A building transition comprising a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and/or a plaster layer;
    wherein a plastering strip (2, 26) according to any of claims 1 and 3 to 10 is provided, which has a base area introduced into a gap between the first and second building components and has its double-sided foam adhesive tape (8, 32) adhesively bonded to the first building component, or which is arranged in front of the thermal insulation and has its double-sided foam adhesive tape (8, 32) adhesively bonded to the first building component.
14. A building transition comprising a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and/or a plaster layer;
    wherein a plastering strip (68) according to any of claims 2 to 10 is provided, which is introduced into a gap between the first and second building components and is adhesively bonded to the first building component by means of its additional adhesive tape (76) and abuts the thermal insulation with part of its plastering area (72).

Images