EP4130418A1 - Bandes d'étanchéité - Google Patents

Bandes d'étanchéité Download PDF

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Publication number
EP4130418A1
EP4130418A1 EP22186046.3A EP22186046A EP4130418A1 EP 4130418 A1 EP4130418 A1 EP 4130418A1 EP 22186046 A EP22186046 A EP 22186046A EP 4130418 A1 EP4130418 A1 EP 4130418A1
Authority
EP
European Patent Office
Prior art keywords
sealing strip
base body
sealing
adhesive layer
face
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
EP22186046.3A
Other languages
German (de)
English (en)
Inventor
Marco Sieber
Reto Sieber
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.)
Silu Verwaltung AG
Original Assignee
Silu Verwaltung AG
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 Silu Verwaltung AG filed Critical Silu Verwaltung AG
Publication of EP4130418A1 publication Critical patent/EP4130418A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/62—Tightening or covering joints between the border of openings and the frame or between contiguous frames
    • 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
    • E04B1/6812—Compressable seals of solid form

Definitions

  • the invention relates to an elongate sealing strip for building purposes, in particular for sealing joints and gaps when installing windows and doors in the shell and for general joints.
  • sealing tapes Various pre-compressed and mostly impregnated sealing tapes are known from the prior art for this purpose. These sealing tapes have an elastic foam strip, which is pre-compressed so that it slowly expands after unrolling.
  • the foam strip is usually made of polyurethane.
  • An adhesive layer is attached to one side of the foam strip, with which the sealing tape can be glued to a component.
  • the disadvantage of these pre-compressed sealing tapes is that the expansion rate of the foam strip depends on the ambient temperature. This leads to problems during installation, since the expansion at warm temperatures is so rapid that there is too little time to install the window or door after the sealing tape has been stuck on. The craftsman has to hurry after applying the sealing tape, which greatly increases the error rate.
  • pre-compressed sealing tapes are only suitable for a limited range of joint widths. On a construction site, therefore, there must always be several dimensions of pre-compressed Sealing tapes are kept in stock. This leads to increased space and material requirements and increases the risk that an unsuitable sealing tape is selected for a given joint.
  • Another disadvantage is that the sealing properties of the foam against the wall are only limited, since the seal is based only on the expansion of the foam and the associated pressure against the wall.
  • the elastically recoverable sealing tape includes an elastically recoverable foam strip held in a compressed state by a detachable suture of at least one thread.
  • the foam strip is inserted into the joint to be sealed and the foam strip is reset by loosening the seam.
  • the seam can be unintentionally loosened during insertion and the foam strip can slip when the seam is loosened, which has a negative effect on the seal.
  • a ready-made wedge-shaped sealing strip for construction purposes is known.
  • the sealing bead made of a flexible plastic material can be pressed into the area to be sealed.
  • the disadvantage here is that the sealing strip is difficult to press into narrow joints due to the flexible plastic material.
  • the present invention is therefore based on the object of creating an improved sealing element with which joints in buildings, in particular joints between windows and doors and the adjacent masonry, can be sealed quickly, long-lastingly and reliably.
  • the sealing element should be usable on materials common in the construction sector, such as masonry, concrete, wood, plastic or metal, and should have good adhesion and sealing properties thereon.
  • sealing element should be suitable for sealing joints in various areas of use and different widths and uneven or irregular surfaces.
  • a joint should be able to be sealed quickly and reliably with the sealing element, independently of the ambient temperature.
  • the sealing element should seal a joint with at least approximately the same quality in relation to both sides forming the joint.
  • the sealing strip which is suitable for sealing joints, preferably in the construction sector, in particular for sealing joints between windows or doors and masonry, has an elongate base body which, through a first cheek side on which an adhesive layer is arranged, has a second cheek side , on which an adhesive layer is arranged, a first end face and a second end face is delimited.
  • the base body is made of a deformable foam material. The deformable body enables optimal adjustment and thus optimized sealing against uneven surfaces and different joint widths.
  • the first side of the cheek is concave in relation to the base body.
  • the first side of the cheek adapts optimally to the surface to which it is to be glued.
  • the alignment of the cheek side on the component can still be readjusted, since the concave shape prevents or greatly reduces direct and strong adhesion of the adhesive layer arranged on the first cheek side to the component. Unintentional sticking in an undesirable position is thus significantly reduced.
  • the sealing strip is torsionally stable, so that unwanted twisting along the axis of the sealing strip is prevented or at least greatly reduced during use. This prevents the adhesive layers from sticking together when the sealing strip is in a twisted position. This makes processing the sealing strip easier and speeds up the sealing process. Furthermore, the quality and uniformity of the bond is improved.
  • the sealing strip can be glued in the exact position along the depth of the joint.
  • concave means that one side is curved inward relative to the base body.
  • concave shape in addition to the example in Figure 1a shown concave shape also understood an indentation, one or more grooves, a depression or a milled structure.
  • concave for the purposes of the present invention is in the Figures 2g and 2h shown and described in the relevant section of the specification.
  • convex means that a side surface is curved outwards relative to the base body.
  • the first side of the cheek is at least partially covered by a film strip which covers the adhesive layer in order to prevent unwanted sticking.
  • the second cheek side is particularly preferably at least partially covered by a film strip which covers the adhesive layer in order to prevent unwanted sticking.
  • the film strip is preferably easily removable by hand so that the adhesive layer is exposed and can be bonded to the window or door or to masonry.
  • At least one film strip has an overhang which protrudes beyond the cheek sides. This makes it easier to pull off the foil strip.
  • the second side of the cheek is concave with respect to the base body. Due to this shape, the second side of the cheek adapts optimally to the surface to which it is to be glued. This shape also reduces undesired sticking when the sealing strip is positioned on a component.
  • the base body is preferably made of an at least approximately open-cell foam material.
  • the base body is therefore compressible and has an optimal expansion behavior for applications in the construction sector.
  • the base body is made of a closed-cell, extruded foam material which is made at least approximately open-cell by mechanical post-treatment.
  • the Follow-up treatment can be done, for example, by puncturing with one or more needles, with which a large part of the closed cells are punctured and thus made open-celled.
  • a corresponding method for mechanical post-treatment is in BE 1026558 described. Materials and manufacturing processes that result in a closed-cell foam material can be made open-celled and the material properties can be optimized for the application.
  • At least 70-80%, more preferably at least 80-90%, particularly preferably at least 91%-99% of the cells are made open-celled by the mechanical post-treatment.
  • the foam material is so easily compressible and at the same time airtight and impermeable to driving rain.
  • the concave first cheek side has a plurality of indentations and/or the concave first cheek side has one on both sides along the auxiliary plane (HE), which is defined by a lateral boundary of the first end face and a lateral boundary of the second Face is clamped, aligned transition surface.
  • HE auxiliary plane
  • the base body has a stiffening zone which has an increased compressive strength (according to DIN ISO 3386-01) compared to the rest of the base body.
  • This property is preferably achieved in that the stiffening zone has a lower proportion of open-cell foam cells compared to the rest of the base body. This is preferably achieved by less mechanical after-treatment of the stiffening zone compared to the rest of the base body.
  • the mechanical properties of the base body are improved by the stiffening zone and are adaptable.
  • the first adhesive layer and the second adhesive layer comprise different adhesives.
  • the adhesion and adhesive properties can thus be matched to the respective materials of the components.
  • the known adhesives are suitable as adhesives, for example adhesives based on methacrylate, as in FIG DE 296 13 232 U1 described.
  • a hotmelt adhesive for example, is particularly suitable as a low-tack adhesive Polyolefin base.
  • a rubber-based, pressure-sensitive hot-melt adhesive for example, is particularly suitable as the high-tack adhesive.
  • the foil strip for covering the adhesive layer is preferably a siliconized foil.
  • the first adhesive layer comprises a high-tack adhesive.
  • the second adhesive layer preferably comprises a low-tack adhesive.
  • the tack of the first adhesive layer (loop tack according to FINAT 9) is at least three times, preferably at least five times, particularly preferably at least ten times the tack of the second adhesive layer (loop tack according to FINAT 9).
  • the second adhesive layer comprises a high-tack adhesive.
  • the first adhesive layer preferably comprises a low-tack adhesive.
  • the tack of the second adhesive layer (loop tack according to FINAT 9) is at least three times, preferably at least five times, particularly preferably at least ten times the tack of the first adhesive layer (loop tack according to FINAT 9).
  • the first layer of adhesive comprises two parallel elongate lines of adhesive separated by an intermediate zone not covered with adhesive. This allows the foil strip to be easily removed from the adhesive layer.
  • the second layer of adhesive preferably covers only the central portion of the second cheek.
  • the base body is preferably made from a thermoplastic foam material.
  • the foams used are preferably soft, open-cell, partially open-cell or closed-cell foams, in particular based on polyolefin, PVC or polystyrene or combinations thereof.
  • the foam material is preferably not impregnated.
  • the base body is made of an ethylene-butyl acrylate-based and/or an ethylene-vinyl acrylate-based polymer material.
  • the base body is made of one crosslinked polymer material. The sealing strip thus has an aging resistance that is suitable for the construction sector.
  • the average cell size of the foam material is preferably 0.6mm to 1.5mm, particularly preferably 0.9mm to 1.5mm.
  • the average cell size is the diameter of a sphere that has the same volume as the average cell.
  • the first end face and/or the second end face are convex in relation to the base body.
  • the torsional stability of the sealing strip is increased by the convex configuration, so that during use undesired twisting along the axis of the sealing strip is prevented or at least greatly reduced. This prevents the adhesive layers from sticking together when the sealing strip is in a twisted position. This makes processing the sealing strip easier and speeds up the sealing process. Furthermore, the quality and uniformity of the bond is improved.
  • the sealing strip can be glued in the exact position along the depth of the joint.
  • the first end face of the base body of the sealing strip has a cross section that is at least approximately in the shape of a segment of a circle or a segment of an ellipse.
  • the second end face of the base body of the sealing strip has an at least approximately circular segment-shaped or elliptical segment-shaped cross section.
  • the first end face and the second end face are mirror-symmetrical to one another.
  • the sealing strip can be rolled up.
  • the elongate sealing strip can be transported and stored in a space-saving manner.
  • the sealing strip can preferably be rolled up in such a way that the same film strip covers both the adhesive layer on the first cheek side and the adhesive layer on the second cheek side on one side and prevents them from sticking together. Both layers of adhesive can thus be covered with just a single strip of film.
  • the base body preferably has a density of at most 50 kg/m 3 , particularly preferably at most 30 kg/m 3 .
  • the width of the base body essentially corresponds to the height of the base body.
  • the width designates the distance between the first cheek surface and the second cheek surface.
  • the height designates the distance between the first end face and the second end face.
  • the base body has a compressive strength (according to DIN ISO 3386-01) at 50% compression of at most 30 kPa, preferably at most 15 kPa, particularly preferably at most 7 kPa.
  • the compression hardness is low enough to be able to move a window frame by hand into the end position of the screw connection against the sealing strip.
  • the compressive strength is high enough to ensure that the base body is pressed against the window frame and thus that the transition point is sealed.
  • Sealing strips according to the invention are preferably suitable for sealing joints with joint widths between 3mm and 200mm, preferably between 3mm and 150mm, even more preferably between 3mm and 100mm, and most preferably between 4mm and 60mm.
  • a single sealing strip or at least a small number of differently dimensioned sealing strips can preferably be used for different joint widths, which reduces the space and storage requirements on a construction site.
  • the sealing strip preferably has a dimension of 5 to 400 mm in width and/or height.
  • the length of the sealing strip before installation is preferably several meters, with the sealing strip being easily cut to any required length.
  • the first end face of the base body and/or the second end face of the base body is preferably impervious to driving rain or airtight in accordance with DIN 18542/EN1027 or in accordance with ift guideline MO-01/1.
  • the base body is impervious to driving rain or airtight in accordance with DIN 18542/EN1027.
  • impervious to driving rain means impervious in particular to a pressure of more than 600 Pa.
  • the production of the sealing strip is not subject to any particular restrictions and is carried out using the methods known to those skilled in the art.
  • the sealing strip is preferably produced by extrusion, particularly preferably by co-extrusion, lamination or by packaging.
  • sealing strip according to the invention for sealing a joint between masonry or woodwork and a window or door is also the subject of this invention.
  • Fig. 1a shows the base body 11 of a sealing strip 1 according to the invention in a first embodiment.
  • the base body 11 is delimited by a first cheek side 111, a second cheek side 111', a first end face 112 and a second end face 112'.
  • the first end face 112 is delimited by a lateral delimitation 1121 which marks the line connecting the first end face 112 to the first cheek side 111 .
  • the second end face 112' is delimited by a lateral delimitation 1121' which marks the connecting line of the second end face 112' with the first cheek side 111.
  • the first cheek side 111 is concave in relation to the base body 11 .
  • the coordinate system shown defines the orientation of the terms width (W), length (L) and height/depth (H) used in this application.
  • Fig. 1b shows a sealing strip 1 according to the invention with the base body 11 Fig. 1a .
  • an adhesive layer 13, 13' is arranged on the cheek sides 111, 111'.
  • the adhesive layers 13, 13' cover the corresponding cheek sides 111, 111' over a large area along the length.
  • FIG. 1c shows the sealing strip 1 Fig. 1b with an adhesive layer 13 covered by a film strip 14.
  • the film strip 14 is designed in such a way that both the cheek side 111 and the adhesive layer 13 arranged thereon are completely covered.
  • a projection 14A, 14B is formed on both sides of the foil strip 14 .
  • Figure 2a shows the sealing strip 1 Fig. 1b in a cross section.
  • the base body 11 is delimited by two cheek sides 111, 111' and two end faces 112, 112'.
  • An adhesive layer 13, 13' is arranged on each of the two cheek sides 111, 111'.
  • the first cheek side 111 is concave with respect to the base body 11 .
  • Figure 2b a second embodiment of a sealing strip 1 according to the invention in a cross section.
  • the end faces 112, 112' are longer than the cheek faces 111, 111'. This allows very wide joints to be sealed.
  • Figure 2c shows a third embodiment of a sealing strip 1 according to the invention in a cross section.
  • the base body 11 is delimited by two cheek sides 111, 111' and two end faces 112, 112'.
  • An adhesive layer 13, 13' is arranged on each of the two cheek sides 111, 111'.
  • the two cheek sides 111, 111' are each formed concavely with respect to the base body 11.
  • Fig. 2d shows a fourth embodiment of a sealing strip 1 according to the invention in a cross section.
  • the end faces 112, 112' are each designed convex with respect to the base body 11.
  • the two Cheek sides 111, 111' are each configured concavely with respect to the base body 11.
  • Figure 2e shows a fifth embodiment of a sealing strip 1 according to the invention in a cross section.
  • the base body 11 has a stiffening zone 11A, which extends from the first end face 112 to the second end face 112'.
  • the stiffening zone 11A is integrated in the base body 11 and merges into the base body 11 without a transition.
  • Fig. 2f shows a sixth embodiment of a sealing strip 1 according to the invention in a cross section.
  • the adhesive layer 13 is designed as two non-touching strips which only partially cover the first cheek side 111 .
  • the adhesive layer 13' on the second cheek side 111 covers this only partially.
  • FIG. 2g shows the base body 11 Fig. 1a in a cross section.
  • the auxiliary plane HE is spanned by the lateral boundary 1121 of the first end face 112 and the lateral boundary 1121′ of the second end face 112′.
  • the auxiliary plane HE forms the imaginary boundary surface up to which the term concave is used within the meaning of the present invention.
  • Concave in the sense of the present invention means that the first cheek side 111 is located at least predominantly with respect to the auxiliary plane HE on the side facing the base body 11 .
  • Fig. 2h shows the base body 11 of a seventh embodiment according to the invention in a cross section.
  • the first cheek side 111 is concave with respect to the auxiliary plane HE and has two indentations.
  • the first cheek side 111 has a transition surface 1111, 1112 aligned along the auxiliary plane HE on both sides.
  • the transition surfaces 1111, 1112 each adjoin the respective lateral boundaries 1121, 1121' of the end faces 112, 112'.
  • FIG. 3 shows a sealing strip 1 according to the invention in a joint 7.
  • the base body 11 is at least partially compressed, whereby the cheek sides 111, 111' or the adhesive layers 13, 13' arranged thereon are at least partially pressed against the masonry 8 and the window or door 9 .
  • the Adhesive layers 13, 13' stick to the masonry 8 and the window or door 9, whereby the sealing and adhesion of the sealing strip 1 is improved.
  • Figures 4a to 4d illustrate the use according to the invention of a sealing strip 1 according to the invention for sealing a joint 7.
  • Figure 4a shows a schematic masonry 8 and a schematic window or door 9 with a sealing strip 1 aligned along it.
  • Figure 4b shows the masonry 8 and the window or door 9 from Figure 4a with arranged on the masonry 8 sealing strip 1.
  • the foil strip of the sealing strip 1 is opposite Figure 4a been removed. Due to the concave shape of the first cheek side 111, the base body 11 is only slightly glued to the masonry 8 in the edge regions. The sealing strip 1 thus remains in the desired mounting position. At the same time, the sealing strip 1 can also be easily detached from the masonry 8 and repositioned if it is incorrectly positioned.
  • the base body 11 can be compressed by pressing it against the masonry 8, so that the first cheek side 111 and the adhesive layer 13 arranged thereon are pressed against the masonry 8 and bond thereto.
  • Figure 4c shows the masonry 8 and the window or door 9 from Figure 4b with sealing strip 1 glued to the masonry 8.
  • the first cheek side 111 is aligned coplanar to the masonry 8 and remains in this geometric shape.
  • the adhesive layer 13' on the second cheek side 111' is exposed so that a window or door 9 can be pressed against it.
  • Figure 4d shows a joint 7 formed between the masonry 8 and the window or door 9 from Figure 4c with a sealing strip 1 sealing the joint.
  • the window or door 9 is glued to the sealing strip 1 via the adhesive layer 13'.
  • the base body 11 is at least slightly compressed, so that a restoring and sealing force is exerted by the base body 11 on the masonry 8 and the window or door 9 .
  • the sealing effect is additionally improved by gluing on both sides.
  • Figure 5a shows a top view of a corner joint 7 sealed with two sealing strips 1, 1'.
  • the two sealing strips 1 and 1' have been shortened in such a way that the corner area is sealed by the base body 11 of the respective sealing strips 1 and 1'.
  • the sealing strips 1, 1' are each bonded to the masonry 8 and the window or door 9.
  • Figure 5b shows a corner joint 7 sealed with a sealing strip 1 in a plan view.
  • the sealing strip 1 is glued to the window or door 9 along the corner without interruption.
  • On the opposite side of the sealing strip 1 is glued to the masonry along the corner without interruption with this.
  • the corner area is only sealed by the base body 11 . Due to the partially compressed body, it exerts a force along the arrows. This achieves a good pressing effect against the wall 8 in the corner area and the window or door 9 opposite.
  • the sealing strip according to the invention is not only suitable for sealing joints in the construction sector, but is also suitable for joints in mechanical engineering, the automotive sector or other areas.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
EP22186046.3A 2021-08-04 2022-07-20 Bandes d'étanchéité Pending EP4130418A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021208456.7A DE102021208456A1 (de) 2021-08-04 2021-08-04 Dichtstreifen

Publications (1)

Publication Number Publication Date
EP4130418A1 true EP4130418A1 (fr) 2023-02-08

Family

ID=82656756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22186046.3A Pending EP4130418A1 (fr) 2021-08-04 2022-07-20 Bandes d'étanchéité

Country Status (2)

Country Link
EP (1) EP4130418A1 (fr)
DE (1) DE102021208456A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008011758U1 (de) * 2008-09-03 2008-11-20 M + S Silicon Gmbh & Co. Kg Dichtungsband mit Stabilisierungselement
CA3093870A1 (fr) * 2018-03-16 2019-09-19 Silu Verwaltung Ag Bandes d'etancheite

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH661761A5 (de) 1983-03-16 1987-08-14 Dow Chemical Europ Randdaemmstreifen zum trennen geheizter schwimmender boeden von der wand in gebaeuden.
DE29613232U1 (de) 1996-07-31 1996-09-19 Polytherm Vertriebsgesellschaft Haustechnischer Artikel Mbh, 48607 Ochtrup Keilförmig profilierter Dichtungsstrang für Bauzwecke
ATE429550T1 (de) 2007-02-14 2009-05-15 Iso Chemie Gmbh Rückstellfähiges dichtband
WO2011038215A2 (fr) 2009-09-24 2011-03-31 Zipwall, Llc Systèmes de montage de cloisons, kits d'assemblage de cloisons, ruban adhésif double face et procédés d'installation et d'application
BE1026558B1 (de) 2018-08-23 2020-03-26 Nmc Sa Gegenstände aus polymerschaum

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008011758U1 (de) * 2008-09-03 2008-11-20 M + S Silicon Gmbh & Co. Kg Dichtungsband mit Stabilisierungselement
CA3093870A1 (fr) * 2018-03-16 2019-09-19 Silu Verwaltung Ag Bandes d'etancheite

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DE102021208456A1 (de) 2023-03-09

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