EP4328392A1 - Bande d'étanchéité pour fermer, sceller et/ou coller des joints - Google Patents

Bande d'étanchéité pour fermer, sceller et/ou coller des joints Download PDF

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Publication number
EP4328392A1
EP4328392A1 EP23190832.8A EP23190832A EP4328392A1 EP 4328392 A1 EP4328392 A1 EP 4328392A1 EP 23190832 A EP23190832 A EP 23190832A EP 4328392 A1 EP4328392 A1 EP 4328392A1
Authority
EP
European Patent Office
Prior art keywords
section
width direction
longitudinal direction
sealing tape
extending
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23190832.8A
Other languages
German (de)
English (en)
Inventor
Simon Pronath
Beatrix Demel
Karl Graf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tremco CPG Germany GmbH
Original Assignee
Tremco CPG Germany GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tremco CPG Germany GmbH filed Critical Tremco CPG Germany GmbH
Publication of EP4328392A1 publication Critical patent/EP4328392A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6809—Reverse side strips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/625—Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps

Definitions

  • the present invention relates to a sealing tape which is particularly used in the construction sector.
  • this sealing tape is used to close, seal and/or glue joints.
  • sealing tapes have long been known from the prior art.
  • self-adhesive sealing tapes or sealing films are known, which are used to seal window connection joints, for example.
  • such sealing tapes have two opposing self-adhesive strips for bonding in the window frame, which enable either one-sided or alternating use. One of these two strips is unnecessary during assembly.
  • sealing tapes are relatively difficult to produce because a self-adhesive layer has to be applied to both the top and bottom of a carrier.
  • the present invention is therefore based on the object of proposing a sealing tape or a method for producing it, which is the finished product, i.e. H. the sealing tape is simplified or its production is simplified. This is achieved according to the invention by the subject matter of the independent patent claims. Advantageous embodiments and further developments are the subject of the subclaims.
  • a sealing tape according to the invention in particular for closing, sealing and/or gluing joints, has a carrier layer which extends in a longitudinal direction and in extends in a width direction perpendicular to the longitudinal direction.
  • the carrier layer has an upper side extending in the longitudinal direction and the width direction and an underside extending in the longitudinal direction and the width direction.
  • an adhesive layer is arranged at least indirectly on the top, which also extends in the longitudinal direction and at least in sections in the width direction. Furthermore, a cover film extending in the longitudinal direction and the width direction is provided, which is arranged on the adhesive layer.
  • the sealing tape is assembled as a roll of sealing tape and/or wound into a roll of sealing tape.
  • the carrier layer in the state assembled as a sealing tape roll has at least a first section extending in the longitudinal direction and the width direction, at least a second section extending in the longitudinal direction and the width direction and at least a third section extending in the longitudinal direction and the width direction (2c ), which (third section) is arranged in the width direction between the first section (2a) and the second section (2b).
  • These sections are preferably parallel to one another.
  • the first section is angled at a predetermined angle relative to the second section with respect to a geometric fold line that extends in the longitudinal direction, with the adhesive layer extending continuously in the width direction in at least one of the two sections.
  • An at least indirect arrangement of the adhesive layer on the carrier layer means that this adhesive layer can be arranged directly on the carrier layer or its material or on a further membrane or coating, which in turn is arranged on the carrier layer.
  • the carrier layer is preferably formed from a base carrier and the membrane or coating arranged thereon, and the top side of the carrier layer is formed in this case by the top side or the outer surface of this membrane or coating.
  • the adhesive layer does not extend continuously in the other of the two sections, but rather a channel with a predetermined width is provided in the adhesive layer and extends in the longitudinal direction.
  • This channel preferably has a width in the other of the two sections at least 2mm, preferably at least 4mm and preferably at least 5mm.
  • This channel preferably has a width in the other of the two sections that is less than 20mm, preferably less than 15mm and particularly preferably less than 10mm.
  • a cover tape or sealing tape is therefore described which has a section which is folded over in relation to another section and in particular is completely folded over.
  • the sealing tape is made into a roll.
  • the result is a “double-sided coated” tape, although only one side needs to be coated during production.
  • the carrier layer of the sealing tape can be composed of a base carrier with a membrane glued to it.
  • the base support can be a fleece.
  • the fold line runs in the third section or is adjacent to the third section. In the latter case, a folding occurs between the first section and the third section or between the third section and the second section.
  • a further membrane or coating is arranged on the base body.
  • the carrier layer is preferably formed by a base carrier and said membrane or coating.
  • the carrier layer in this preferred embodiment is also equipped with an additional membrane and/or coating, which preferably takes on the actual sealing function.
  • the second section is angled relative to the first section by an angle that is greater than 100°, preferably greater than 120°, preferably greater than 140°, preferably greater than 160° and preferably greater than 170° and particularly preferably at an angle , which is at 180° or just below 180°.
  • the second section essentially extends in the angled state parallel to the first section.
  • the first section and the second section are preferably arranged one above the other in sections.
  • the carrier layer preferably extends in the longitudinal direction by at least 5 m, preferably at least 8 m, preferably at least 10 m, preferably at least 15 m and preferably at least 20 m.
  • the carrier layer extends in the longitudinal direction by a maximum of 300 m, preferably a maximum of 200 m, preferably a maximum of 100 m, preferably a maximum of 80 m, preferably a maximum of 60 m and preferably a maximum of 40 m.
  • the sealing tape roll has a width (extending in the width direction) that is greater than 20 mm, preferably greater than 40 mm, preferably greater than 60 mm.
  • the sealing tape roll preferably has an extension in the width direction that is less than 4000 mm, preferably less than 3000 mm, preferably less than 2000 mm, preferably less than 1500 mm, preferably less than 1000 mm and preferably less than 500 mm.
  • An idea underlying the invention is to provide a factory-folded back wing side of a film body equipped on one side with a self-adhesive layer, which in this way offers one-sided or reciprocal laying options without having to additionally attach a self-adhesive strip to the back of the film.
  • the adhesive layer extends uninterrupted in at least one of the two sections and preferably in the second of the two sections over a predetermined proportion in the width direction, this proportion being greater than 40% of the extent of this section in the width direction, preferably greater than 50%, preferably greater than 60%, preferably greater than 70% and preferably greater than 80%.
  • the adhesive layer extends in the first section to the edge of the sealing tape and/or it extends in the second section to the edge of the sealing tape.
  • the adhesive layer preferably extends in both sections the respective edge of the relevant section.
  • a channel extending in the longitudinal direction and the width direction (and preferably forming the third section) is provided, in which no adhesive layer is arranged on a carrier layer, this channel preferably having a width in the width direction that is larger than 0.5 mm, preferably greater than 0.7 mm, preferably greater than 0.8 mm and particularly preferably greater than 1.0 mm.
  • This width is preferably less than 10 mm, preferably less than 8 mm, preferably less than 6 mm and particularly preferably less than 5 mm and preferably less than 3 mm.
  • the adhesive layer has an amount of adhesive that is greater than 10 g/m 2 , preferably greater than 30 g/m 2 , preferably greater than 45 g/m 2 . In a further advantageous embodiment, the adhesive layer has an amount of adhesive that is less than 500 g/m 2 , preferably less than 400 g/m 2 , preferably less than 300 g/m 2 and particularly preferably less than 250 g/m 2 .
  • the width of the first section in the width direction differs from the width of the second section in the width direction, the width of the first section preferably being at least 60%, preferably at least 65%, preferably at least 70% and preferably at least 75%. of the entire width and/or the width of the first section is preferably at most 95%, preferably at most 90%, preferably at most 85% and preferably at most 80% of the entire width (of the band).
  • the roll particularly preferably has a roll core and the shorter side is aligned towards this. This means that the second section is in one position Roll points towards the roll core.
  • the first section is oriented outwards (with respect to the roll) in a rolled-up state.
  • the adhesive layer is arranged directly on the carrier layer and/or the cover layer is arranged directly on the adhesive layer.
  • the sealing tape is therefore particularly preferably composed of at least three different layers and preferably exactly three different layers. These three layers mentioned are particularly preferably made from different materials. Layers are preferably understood to mean both adhesive layers and (plastic) films.
  • the cover layer extends continuously in the width direction in at least one of the two sections.
  • a covering layer is present at least in the other of the two sections.
  • only the carrier layer is arranged in the area of the fold line. This means that for the purpose of folding, only the carrier layer needs to be folded.
  • the base body and/or the carrier layer is made of a material or has a material which is selected from a group of materials which contains PP, polyester, in particular a polyester fleece, EPDM, glass, in particular a glass fleece and glass fabric .
  • the above-mentioned membrane and/or coating which is arranged on the base body, is selected from a group of materials which include LDPE films, PA films, PA/EVOH films, ionomer films, PP, latex coatings and contains the like.
  • Suitable materials for the carrier layer are materials with an sd value that is essentially independent of the relative humidity applied. Suitable materials are, for example, polyester, thermoplastic ether-ester copolymers (TPEE), polyolefins, Polyethylene (PE), high density polyethylene (HDPE), polypropylene (PP), ethylene vinyl acetate (EVA), polylactides, starch-based polymers, polyacrylates, thermoplastic polyurethanes (TPU), and combinations thereof whose SD value is within the specified range. Mixtures are also possible, for example of thermoplastic ether-ester copolymers (TPEE) with EVA or of thermoplastic polyurethanes (TPU) with EVA or with polyester.
  • TPEE thermoplastic ether-ester copolymers
  • TPU thermoplastic polyurethanes
  • This membrane and/or coating preferably has a thickness that is greater than 10 ⁇ m, preferably greater than 20 ⁇ m, preferably greater than 25 ⁇ m and preferably greater than 30 ⁇ m.
  • This membrane and/or coating preferably has a thickness that is smaller than 400 ⁇ m, preferably smaller than 300 ⁇ m, preferably smaller than 200 ⁇ m and preferably smaller than 150 ⁇ m
  • the carrier layer particularly preferably has a thickness that is greater than 0.1mm, preferably greater than 0.2mm, preferably greater than 0.3mm and particularly preferably greater than 0.35mm.
  • the carrier layer particularly preferably has a thickness that is less than 1.0mm, preferably less than 0.9mm, preferably less than 0.8mm, preferably less than 0.75mm and particularly preferably less than 0.7mm.
  • the adhesive layer is particularly preferably made from a material which is selected from a group of adhesives which contains acrylate, butyl, PSA hotmelt and the like.
  • the cover film is siliconized at least on one side, preferably on both sides.
  • the sealing tape is vapor diffusion variable.
  • the carrier has an sd value that is between 0.3m and 30m.
  • the sealing tape preferably has an sd value that is between 0.4m and 30m
  • the cover film is at least in sections slotted and particularly preferably slotted in the area of the fold.
  • the cover film is preferably removed from the area to be folded before rolling up.
  • a wide self-adhesive area preferably remains covered with the cover film.
  • this remaining cover film can protrude beyond the product width by folding over the narrow side of the wing over the width and preferably protrude in a range of 1 to 3 mm.
  • the cover film has at least one slot and/or channel extending in the longitudinal direction.
  • This slot or channel is particularly preferably arranged in an area of the fold.
  • This slot particularly preferably has a width that is less than 10 mm, preferably less than 8 mm, preferably less than 6 mm, preferably less than 5 mm.
  • This slot particularly preferably has a width that is greater than 0.01 mm, preferably greater than 0.03 mm, preferably greater than 0.05 mm, preferably greater than 0.08 mm, preferably greater than 0.1 mm and preferably larger than 0.3 mm.
  • the cover film projects in the width direction beyond the width of the carrier layer.
  • the cover film projects beyond the width of the carrier layer, particularly in the rolled-up state.
  • the cover film preferably protrudes beyond the other layers when untwisted.
  • the cover film is preferably rolled up, in the edge region of the roll it preferably protrudes beyond the roll itself and/or the carrier layer.
  • the carrier layer In a rolled-up state, the carrier layer preferably projects beyond a (geometric) side surface of the rolls, which would result from the side edge of the carrier layer.
  • this overhang prevents the outside of the rolls of the adhesive tapes from sticking together, for example in a box and during installation.
  • the narrower wing side which can have a width of 25 mm, for example, is directed inwards towards the roll core without the cover film. This exposed adhesive area is protected - preferably over the entire surface - by the back of the cover film of the underlying layer.
  • the fold line runs through the above-mentioned channel and/or the third section. So preference is given here the channel and/or third section divided by the fold line or fold.
  • This fold line is not necessarily in the middle. It is therefore possible for the fold line to divide the channel and/or third section into a larger and a smaller section.
  • the larger section can have a width of 3mm and the smaller section can have a width of 2mm.
  • the cover film preferably has a width which corresponds to the width of the roll. This also creates a “finger lift” for easier removal on the construction site and the roll can be wound flush without the covering film sticking out.
  • the outside of the roll is preferably also designed to be non-adhesive.
  • a first film area to be glued is always exposed, so that it can be processed directly from the roll without first removing the cover film.
  • the third section (2c) is shorter in the width direction than at least the first section or the second section and preferably shorter in the width direction than the first section and shorter than the second section.
  • the present invention further relates to a method for producing a roll of sealing tape.
  • a carrier layer and/or carrier film is provided which extends in a longitudinal direction and in a width direction perpendicular to the longitudinal direction, the carrier layer having an upper side extending in the longitudinal direction and the width direction and an upper side extending in the Has the bottom extending in the longitudinal direction and the width direction.
  • an adhesive layer is applied or attached to the top of the carrier layer, which extends in the longitudinal direction and at least in sections (and preferably in sections) in the width direction.
  • a cover film is applied at least in sections, which extends in the longitudinal direction and at least in sections (and preferably in sections) in the width direction and in particular attached to the adhesive layer.
  • the composite of the carrier layer, the adhesive layer and the cover layer is rolled up into a roll of sealing tape.
  • the carrier layer before rolling up, has a first section extending in the longitudinal direction and the width direction, a second section extending in the longitudinal direction and the width direction and at least a third section extending in the longitudinal direction and the width direction, which is in the width direction between the first section and the second section are arranged, wherein the first section is angled relative to the second section at a predetermined angle with respect to a geometric fold line that extends in the longitudinal direction and wherein the adhesive layer in at least one of the two sections is uninterrupted in the width direction extends.
  • This bending is preferably done before the composite is rolled up.
  • the backing layer is unrolled from a backing roll.
  • the covering layer is unrolled from a roll.
  • a cut is created through the carrier layer, in particular at or in an area of the above-mentioned fold line.
  • the second section is shorter in the width direction than the first section and the composite is preferably rolled up in such a way that the second section points in the direction of an axis of rotation of the roll (and/or in the direction of a roll core).
  • the Figures 1 - 2 each show sealing films according to the invention. They show Figures 1a and 2a the states in which one section is folded over the other section and the Figures 1b and 2b a state in which the film sections are not folded over.
  • the invention is based on the following problem: Self-adhesive moisture-variable sealing films for sealing window connection joints are now equipped with two opposing SK strips (approx. 20mm) for either one-sided or alternating application for bonding to the window frame. One of the two 20 mm strips is always superfluous.
  • a factory-folded back (e.g. 20 mm) wing side of a film body equipped on one side with two self-adhesive strips at a predetermined distance (functional channel) of, for example, 5 mm, offers a single-sided or alternate-sided installation option without an additional self-adhesive strip applied to the back of the film.
  • the wide self-adhesive area is covered with a cover film.
  • This cover film can also protrude over the functional channel. This overhang prevents the outside of the rolls of the adhesive tape from sticking together in the box and during installation.
  • the narrow wing side (for example with a width of 25 mm) is preferably wound inwards onto the roll core without a cover film. This exposed adhesive area is completely protected by the back of the cover film of the underlying layer.
  • a first area of the film to be glued is already exposed, so that it can be processed directly from the roll without first removing the cover film.
  • Fig. 1a,b show a representation of a sealing tape 1 in a first embodiment.
  • the reference symbol B denotes a width direction in which the in Fig. 1b Sealing tape shown extends.
  • the reference character L denotes a longitudinal direction in which the Figs. 1a and 1b Sealing tape 1 shown extends, this longitudinal direction here runs perpendicular to the plane of the figure.
  • the reference symbol D indicates a thickness direction in which the in Fig. 1b Sealing tape shown extends.
  • Fig. 1b a state is shown in which the sealing tape is not folded.
  • the reference symbol Li denotes a left edge of the sealing tape 1 and the reference symbol R denotes a right edge of the sealing tape.
  • the reference symbol F denotes a fold line relative to which the sealing tape is folded to form the one in Fig. 1a to reach the situation shown. This fold line extends in particular in the longitudinal direction L.
  • the sealing tape is preferred, as in Fig. 1a folded and the folded edge folded over completely. In this folded state, the sealing tape is assembled as a roll of sealing tape.
  • the reference number 2 refers to a base carrier or a carrier layer of the sealing tape 1.
  • This carrier layer 2 can have a layer made of a plastic material and/or a fleece.
  • the carrier layer preferably has both a layer made of a plastic material and a fleece arranged on this layer.
  • An adhesive layer 4 is applied to the carrier layer.
  • This adhesive layer preferably extends from the left edge Li to the fold line.
  • the adhesive layer preferably also extends from the right edge R in the direction of the fold line, but preferably does not reach this.
  • the reference number 6 denotes a particular covering layer which is arranged on the adhesive layer. You can see in the Figs. 1a and 1b that this cover layer also extends from the left edge Li towards the fold point. However, the cover layer preferably extends beyond the fold point, which is both the case Fig 1a as well as in Fig. 1b is recognizable. This section 6a of the covering layer, which projects beyond the fold point, preferably stands in a rolled-up state of the sealing tape 1 beyond an end face of the roll.
  • no covering layer is provided on the adhesive layer 4.
  • the reference number 20 denotes a channel formed between the left edge Li and the right edge R, which extends in the longitudinal direction L and in which no adhesive coating 4 is arranged on the carrier layer 2. However, the section 6a of the cover layer preferably projects into this channel 20.
  • the channel 20 preferably extends in the width direction and in the longitudinal direction of the sealing tape 1.
  • the fold line F also limits the channel (here on the left side).
  • the channel 20 is preferably also folded down completely.
  • the reference numeral 12 denotes an upper side of the carrier layer 2 and the reference numeral 14 denotes an underside of the carrier layer 2.
  • the adhesive layer prefferably be arranged over the entire surface of the carrier layer, but an interrupted arrangement of the adhesive layer 4 on the carrier layer 2 would also be conceivable.
  • Fig. 2a,b show a further embodiment of the sealing tape 1 according to the invention. While in Fig. 1a,b In the embodiment shown, the fold line delimits the channel, runs in the in Fig. 2a,b In the embodiment shown, the fold line within the area of the channel 20. This channel 20 is formed here by two channel sections 20a and 20b, between which the fold line F runs (cf. Fig 2a,b ).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Adhesive Tapes (AREA)
EP23190832.8A 2022-08-25 2023-08-10 Bande d'étanchéité pour fermer, sceller et/ou coller des joints Pending EP4328392A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022121597.0A DE102022121597A1 (de) 2022-08-25 2022-08-25 Dichtband zum Verschließen, Abdichten und/oder Verkleben von Fugen

Publications (1)

Publication Number Publication Date
EP4328392A1 true EP4328392A1 (fr) 2024-02-28

Family

ID=87580260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23190832.8A Pending EP4328392A1 (fr) 2022-08-25 2023-08-10 Bande d'étanchéité pour fermer, sceller et/ou coller des joints

Country Status (2)

Country Link
EP (1) EP4328392A1 (fr)
DE (1) DE102022121597A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08311417A (ja) * 1995-05-24 1996-11-26 Nitto Denko Corp 粘着テープ
DE20312705U1 (de) * 2003-08-18 2003-10-16 Silu Verwaltung Ag, Meggen Montageband mit abschnittsweiser Abdeckfolie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054236A1 (de) 2005-11-14 2007-05-24 Silu Verwaltung Ag Montageband mit Perforation und Dehnungsreserve
DE102017109688A1 (de) 2017-05-05 2018-11-08 tremco illbruck GmbH Folienband mit feuchtevariabler Polymerfolie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08311417A (ja) * 1995-05-24 1996-11-26 Nitto Denko Corp 粘着テープ
DE20312705U1 (de) * 2003-08-18 2003-10-16 Silu Verwaltung Ag, Meggen Montageband mit abschnittsweiser Abdeckfolie

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DE102022121597A1 (de) 2024-03-07

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