EP2666947B1 - Dichtband - Google Patents

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Publication number
EP2666947B1
EP2666947B1 EP13168333.6A EP13168333A EP2666947B1 EP 2666947 B1 EP2666947 B1 EP 2666947B1 EP 13168333 A EP13168333 A EP 13168333A EP 2666947 B1 EP2666947 B1 EP 2666947B1
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EP
European Patent Office
Prior art keywords
sealing tape
incision
barrier layer
foam body
barrier coat
Prior art date
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Application number
EP13168333.6A
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German (de)
English (en)
French (fr)
Other versions
EP2666947A2 (de
EP2666947A3 (de
Inventor
Helmar Nauck
Alfred KÖPPL
Markus Komma
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 Illbruck Produktion GmbH
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Application filed by Tremco Illbruck Produktion GmbH filed Critical Tremco Illbruck Produktion GmbH
Priority to PL13168333T priority Critical patent/PL2666947T3/pl
Publication of EP2666947A2 publication Critical patent/EP2666947A2/de
Publication of EP2666947A3 publication Critical patent/EP2666947A3/de
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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
    • 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
    • E06B2001/628—Separate flexible joint covering strips; Flashings

Definitions

  • the invention relates to a foam sealing tape, for example, for sealing between two structural parts, in particular between a frame member and the associated structure, wherein the sealing strip has a foam body and opposite, the building parts assignable broadsides and transversely extending to these narrow sides, wherein the sealing strip further from one of the narrow sides to the other is permeable to air and permeable to water vapor permeable and wherein the sealing tape has a barrier layer of a different material of the Schaumstoffdichtbandmaterial which extends at least partially over the cross section of the air passage path, wherein the barrier layer is at least partially disposed within the sealing strip.
  • the air permeability properties of the sealing strip can be adapted to the respective requirements, in particular independently of the foam material of the sealing strip used, so that they can be optimized independently of each other.
  • a film acting as a barrier layer This film can surround the foam body on one narrow side and partly on the two adjacent broad sides.
  • the pre-assembled sealing strip arranged on a roll is to be unrolled at a suitable installation, the film web is led laterally to the sealing strip and partially recirculated this folded and the thus provided with the film web sealing tape is then rolled up again.
  • the sealing band section, to which the film web is attached thus has the cross-sectional geometry, in particular width, of the sealing tape which can be used for joint sealing.
  • the production of such a sealing tape is thus very expensive.
  • the barrier layer is attached to the outside of the sealing tape and can be easily damaged. Furthermore, this specifies the position of the barrier layer to the sealing strip.
  • the DE 196 41 415 A1 describes a sealing tape with disposed therein the same barrier layer, for the production of individual layers of the foam material are arranged alternately with laminate layers and then laminated blocks are produced by laminating the layers. These laminate blocks are then cut into sheets which are then rolled up to give ready-to-use sealing tape rolls. Also, this manufacturing process is extremely expensive.
  • the EP 2 309 090 discloses a foam sealing tape having a foam body and opposite, the building parts assignable broad sides and extending transversely to these narrow sides, wherein the sealing strip is further formed from one of the narrow sides to the other air-permeable and permeable to water vapor diffusion permeable and wherein the sealing tape is a barrier layer of one of the foam sealing material comprises different material which extends at least partially over the sealing strip cross section, wherein the barrier layer is at least partially disposed within the sealing strip, wherein the barrier layer extends only partially over the height of the foam body, such that the barrier layer in an incision of the foam body of Sealing tape extends, which passes through the sealing tape only partially with the fate of a foam material web and that the web, the two of the barrier layer opposite portions of the foam body e instinctively interconnects, and wherein the barrier layer opens into a broad side of the sealing strip and the sealing tape is impregnated for delayed recovery and that barrier layer material
  • the invention is therefore the object of a sealing tape provide barrier layer, which is easy to produce and allows to adapt the barrier layer to different requirements.
  • a sealing tape according to claim 1, wherein the barrier layer extends in an incision of the sealing strip, wherein the incision penetrates the sealing tape only partially leaving a foam material web, so that the web, the two of the barrier layer opposite portions the foam body integrally connects with each other.
  • the sealing tape therefore has an at least low air permeability according to DIN 18542 over the remaining foam web.
  • the barrier layer thus extends only partially over the height of the foam body or the sealing tape.
  • the position and depth of the incision of the sealing strip can be varied virtually arbitrarily, for example, with respect to its extension to the broad sides and / or its distance from the narrow sides of the sealing strip, thereby varying the position of the barrier layer within the sealing tape virtually arbitrarily can be to optimally adapt the sealing tape to different requirements.
  • About the depth of the incision and the cross-sectional extent of the barrier layer so the braking effect of the sealing strip can be varied as desired.
  • the barrier layer material can be varied in many ways. For example, it is not mandatory that the barrier layer material also have an adhesive effect on the foam material (or possibly even a single-sided adhesive effect thereon), as the foam body is held together by the remaining bridge.
  • the sealing tape by the method described below is simple and accurate to manufacture.
  • the barrier layer By the barrier layer, the air permeability of the sealing tape is reduced by 80-98%, compared to a sealing tape without barrier layer, which is otherwise identical to horrgenanntem, when measured according to DIN EN ISO 1026.
  • the incision is thus produced by cutting into the foam body by means of a suitable cutting device, for example a knife-like device, a laser or the like.
  • a suitable cutting device for example a knife-like device, a laser or the like.
  • the depth extent of the incision thus usually corresponds to the depth of penetration of the cutting device into the foam body, with partial severing of the two side sections delimiting the incision of the foam body preform.
  • the cutting blade preferably performs a rotary or lifting movement during the cutting process.
  • the object is achieved by a sealing tape in which the barrier layer extends only partially over the height of the foam body, in a section extending between broad side to broadside separation of the foam body, through the barrier layer, the air permeability of the sealing tape by 80- 98% is reduced, when measured according to DIN EN ISO 1026.
  • the remaining barrier-free body area acts here in the manner of a bypass, so that the air passage path can bypass the barrier layer.
  • This also makes the air passage braking effect of the sealing strip practically arbitrarily adjustable over a wide range, namely independently of each other on the one hand by the air permeability of the barrier layer and on the other by the extension of the same over the height of the foam body and the sealing strip.
  • the foam material of the body on both sides of the barrier layer may in particular be the same material, optionally as parts of the same preform, even in embodiment with transection.
  • the foam material of the body can be equipped differently on both sides of the barrier layer, for example, impregnated, for example, with respect to the resilience of the material, watertightness or other material properties, which may be present in the presence of an incision, in particular with complete transection of the body. This may apply to a portion or the entire body material on the respective barrier layer side.
  • the foam areas may be adhered to each other or bonded, in particular glued, preferably each by a diffusion-open connection, this can apply the below remarks in relation to the remaining bridge according to alternative 1.
  • the two body regions abut each other without adhesive or connecting means, optionally a bridging means may be provided on the facing broad side, as described below.
  • the barrier layer reduces the air permeability of the sealing tape by 80-98% when measured according to DIN EN ISO 1026.
  • the air permeability reduction of the sealing tape by the barrier layer can be ⁇ 82.5-85% or ⁇ 90-95%.
  • the braking effect of the sealing strip can be varied to low values, but still a certain air permeability is given, which may be desirable, for example, to achieve a certain ventilation.
  • This can also apply in particular to variant 1 of the sealing strip with an incision.
  • the reduction of the air permeability of the sealing tape through the barrier layer is understood, of course, compared to a sealing tape without barrier layer, which is otherwise identical to lovedgenanntem.
  • the incision or the transection is formed planar, rectilinear in cross-section.
  • the Incision introduced by introducing the cutting device from a broadside in the foam body By cutting into the foam body, therefore, the incision on the body can also be present in its completely (outside the joint) relaxed and deformation-free state.
  • the incision is formed closed with completely relaxed sealing band (outside the joint), so the opposite, forming the incision flanks abut each other or on the barrier layer, preferably at least at the incision or over the entire incision depth.
  • the position of the barrier layer is also stabilized in the incision.
  • the information on the configuration of the sealing strip such as, for example, the position and extent of the incision and the barrier layer, the incision height and height of the barrier layer, height of the remaining foam web, air permeability, etc., respectively, unless otherwise clear from the context, to the complete (free) relaxed sealing tape.
  • the incision or the transection extends in particular in the longitudinal direction of the sealing strip, wherein the sealing strip comprising the incision or transection over its length has a preferably constant cross section. This preferably also relates to the arrangement of the barrier layer in the sealing tape.
  • the incision extending to about 50-55% or more of the height of the sealing strip, preferably over ⁇ 60 to 75% or more preferably ⁇ 80 to 90% of the height thereof, the incision may, for example, also over 95 to 98% of Extend height of the sealing tape or beyond.
  • the embodiment of the sealing tape with indentation is limited to a reduction of the air permeability through the barrier layer by 80-98%.
  • a limitation of the incision depth is given by the fact that the remaining connecting web of foam material still has sufficient strength to connect the two opposite Schaumstoffkorpusteil Schemee integrally manageable together.
  • the depth of the incision here refers to the cross-sectional height of the sealing strip at the outside mouth of the incision, the same applies to the barrier layer height.
  • this is the height of the sealing strip at the incision interface of the respective sealing strip broadside. If the incision opens out on a narrow side of the sealing strip, this is the height of the narrow side.
  • the height of the narrow side can generally correspond to the sealing band height. As a result, therefore, the air permeability properties of the sealing strip can be largely determined by the barrier layer. Under certain circumstances, however, the incision may also extend over a smaller height of the sealing strip, for example only over 25% or only over 33% of the sealing strip height, and possibly even less.
  • the barrier layer extends over 50-55% or more of the height of the foam body, preferably over ⁇ 60 to 75%, or more preferably ⁇ 80 to 90% of its height, for example, the barrier layer may also reach over 95 to 98% of its height extend the foam body or beyond. This is especially true for a sealing tape with incision, in the variant 2 with continuous carcass separation under the proviso of the given air permeability reduction.
  • the barrier layer extends at least approximately or completely to the recess base, the distance between the barrier layer and the recess base is preferably ⁇ 10 to 20% or ⁇ 2 to 5% of the incision depth.
  • the connecting web made of foam material may have a height of ⁇ 1 to 2 mm, optionally also ⁇ 3 to 5 mm, preferably, the web has a height of ⁇ to 10 mm, if necessary ⁇ 5 mm.
  • the distance of the cut bottom or the cut through from the next broad side adjacent thereto may be smaller than the distance of the same from the next narrow side, e.g. ⁇ 150% of the same, more preferably a multiple thereof, such as ⁇ 2-3 times or ⁇ 5-10 times (possibly larger).
  • the sipe may thus have a large depth but the sipe bottom is spaced from the narrow side so that the foam body portion has sufficient inherent stability and the narrow side portion will not be weakened by the sipe which otherwise could compromise the watertightness of driving water into the sipe.
  • the barrier layer may generally extend in the invention over part or preferably all of the flank extension of the incision (or depth thereof), in particular over ⁇ 55 to 75% or ⁇ 80 to 90% of the depth of the incision.
  • the incision or the transection extends at least approximately perpendicular to at least one or both of the broad sides of the sealing strip.
  • the incision or transection may have a deviation of 25 ° or ⁇ 5 ° to 10 ° degrees from the vertical.
  • the incision / cutting extends obliquely to at least one of the broad sides of the sealing strip, for example at an angle of 30 ° to 60 ° or preferably about 45 ° to the sealing strip broadside, or even at a shallower angle to this for example, at an angle of 25 ° or ⁇ 10-20 °.
  • the incision / cut runs at an angle of 20 ° to 25 ° to the sealing strip broadside.
  • the barrier layer Due to the oblique position of incision / transection and thus also of the barrier layer to the sealing strip broad side, the barrier layer is pressurized in a direction perpendicular to its main extension direction in compression of the sealing tape, in contrast to a barrier layer with greater compression and wrinkling arranged approximately perpendicular to one of the broad sides. so that the barrier layer is less mechanically stressed during sealing band compression.
  • Said depth extension of the incision and / or its orientation to the broad side refers in each case to the completely free relaxed sealing tape (outside the joint).
  • the barrier layer is preferably arranged planar in the incision / the transection, possibly also in another shape.
  • the barrier layer extends on the outside of the foam body at least partially over the broad or narrow side, in which the incision opens or adjacent to which. Due to the arrangement on the outside of a barrier layer section, the barrier layer can (additionally) be fixed on the outside with respect to the sealing strip or the foam body, particularly preferably the barrier layer is fixed with a section on the outside directly on the foam body.
  • the sealing strip By fixing the position a secure fit of the barrier layer is also made possible within the incision, especially because the sealing strip during its compression, for example during a pre-assembly and the subsequent (at least partially) relax within the joint considerable deformations, which could lead to changes in position of the barrier layer , Furthermore, this also makes a temporary or permanent fixation of the barrier layer on the foam body or the sealing strip during manufacture the same allows, for example, at a time when other fastening means for the barrier layer are not yet provided.
  • the barrier layer may in this case extend partially or completely over the respective broad or narrow side, at which the incision opens, or beyond. In this way, if appropriate, at the same time the fitting in the mounting position on the sealing tape component, which faces the Einburgeinmündung, partially covered by the barrier layer and thus protected, for example, from moisture.
  • the incision and thus the barrier layer can each be arranged adjacent to one of the narrow sides of the sealing strip, in particular the sealing strip narrow side to be arranged on the inside of the space.
  • the barrier layer is thus preferably offset with respect to the sealing belt center plane to one of the narrow sides, preferably completely in the region between the narrow side and the main center plane of the sealing strip.
  • the barrier layer may be arranged in a range of 2 to 50%, preferably 5 to 45%, in particular 10 to 35% of the width of the sealing strip.
  • the barrier layer is fixed to the sealing tape extending beyond the foam body by a fastening means.
  • the attachment means may in particular be an adhesive layer, in particular self-adhesive layer, or another adhesive.
  • other fasteners such as sewing or the like are applicable.
  • the fastening means preferably fixes the barrier layer section arranged on the outside directly to the foam body.
  • the fastening means can cover at least partially or completely on the outside the barrier layer section arranged outside the foam body.
  • the fastening means preferably extends beyond the barrier layer section arranged on the outside in the circumferential direction of the sealing strip, particularly preferably while fixing it to the foam body.
  • the fastener can here over the entire Area of the outside arranged barrier layer portion and at least partially extend over one or both of the adjacent foam body regions.
  • the fastening means can also extend over the entire sealing strip broad side, on which the barrier layer section is arranged on the outside of the sealing strip or the incision opens. The same can also be true if the incision opens at a sealing narrow band side.
  • the fastening means for the barrier layer can simultaneously serve for fastening the sealing tape to another component, in particular the adjacent component forming the joint, such as a masonry area or frame component.
  • attachment here is also an adhesion for fixing the position of the sealing tape construed.
  • the fastening means may be formed in each case as a double-sided adhesive or adhesive such as double-sided adhesive tape, wherein optionally further carrier layers or the like may be arranged between the two adhesive layers.
  • the fastening means is deformable and allows a rolling up of the sealing strip.
  • a fastening means may be provided which acts between the barrier layer and the foam body, so that the fastening means is thus at least partially or completely covered by the barrier layer portion arranged on the outside of the foam body.
  • the barrier layer is fixed within the incision on the foam body by a fastening means, optionally as an alternative or in addition to a fastening means, which defines a barrier layer section arranged on the outside of the foam body in relation thereto.
  • a fastening means which defines a barrier layer section arranged on the outside of the foam body in relation thereto.
  • an indirect determination may be present, so that other components such.
  • foils or areas of profiles such as plastic profiles or the like between barrier layer portion and foam body are arranged and a positional fixation of the barrier layer portion opposite co-create the foam body.
  • the positional fixation restricts a change in position of the barrier layer section; if appropriate, it prevents a change in position of the barrier layer section with respect to the foam body, at least virtually completely.
  • the barrier layer portion within the incision may be fixed to the foam body in regions or over the entire surface.
  • a line or strip-like definition is possible.
  • the attachment means is also here preferably an adhesive or adhesive, for example a double-sided self-adhesive layer, or even an adhesive layer, which may be directly on the barrier layer (or optionally also on the foam body) attached.
  • the barrier layer is fixed to the end face of the same at the bottom of the recess and / or to the foam body, preferably by fasteners such as a suture muzzle.
  • Adhesive optionally in the form of an adhesive bead. In this way, it is ensured that the barrier layer does not undesirably change its desired position at critical subregions, in particular at the incision base and / or at the incision opening, in the case of a relaxation of a precompressed sealing strip.
  • a plurality of fastening regions of the barrier layer are provided on the foam body, then these are preferably arranged such that when the sealing tape is completely relaxed within the joint or in particular when the sealing tape is completely free (outside the joint), the barrier layer is not tensioned or does not hinder the expansion of the sealing tape or opposes this one force.
  • the barrier layer is at least partially two or more layers, preferably two layers, arranged within the incision, wherein the two- or multi-layer arrangement preferably over ⁇ 50 to 75% or ⁇ 80 to 90 %, particularly preferably 95 to 100% of the extent of the barrier layer extends over the depth of the incision (these values can also apply to the extent of a single-layer barrier layer.)
  • both longitudinal edges of the barrier layer extend outside the incision, optionally also only one
  • both longitudinal edges of the barrier layer are fixed in position relative to the foam body, particularly preferably by adhesion to the same This is particularly easy to arrange in the incision, since only the central area of the same has to be pressed into the incision for the incision base, irrespective of this, with a certain air permeability of the barrier layer d
  • the multi-layer also results in an increase in the barrier effect.
  • the folding associated with the incision base may be fixed to the sealing tape by suitable fastening means such as an adhesive layer or adhesive bead.
  • the sealing tape on the incision on a bridging means which bridges the incision to the sealing tape outside partially or completely towards the narrow side narrow side. With complete bridging the bridging means so also closes the incision mouth.
  • the bridging means may be fixed on one side, preferably on both sides of the incision relative to the foam body, preferably directly on the latter.
  • the incision or the barrier layer arranged therein is protected, for example from foreign substances, which may also be particles detaching from the adjacent masonry.
  • the sealing tape in its handling such as insertion into the Groove in the incision area can be held together by the bridging means.
  • the bridging means may at the same time define the barrier layer on the sealing tape or foam body, but if necessary, it may only cover the recess or the outside barrier layer sections.
  • the bridging means is fixed in position on both opposite sides of the incision relative to the foam body to prevent opening of the incision in the handling of the sealing strip, optionally also the bridging means can be arranged on one side positionally variable or free relative to the foam body, so that it only perceives a masking function.
  • the bridging means is arranged such that when completely free relaxed sealing strip of the incision is closed at the mouth.
  • the bridging means may generally also cover at least one or all barrier layer sections arranged on the outside of the incision.
  • the bridging means may alternatively or additionally be fixed to the outer-side barrier-layer sections or merely cover them loosely.
  • the bridging means preferably extends in the band longitudinal direction.
  • the bridging agent preferably bridges the incision by ⁇ 30-50% or ⁇ 75-90% of its length in the sealing band longitudinal direction or at least substantially completely.
  • the bridging on one or both sides of the incision is preferably at least 3-5 mm larger than the folded-over foil.
  • the bridging agent may in particular be formed as a film or film or possibly also as a strip or the like.
  • the bridging means allows the sealing tape to roll up.
  • the sealing tape may be provided on the incision ground facing broad side at the level of the recess base with a reinforcing layer of suitable material to stabilize the connecting web of the foam material.
  • this reinforcing agent can serve as a fastening means for the sealing strip on another component such as a masonry reveal.
  • the reinforcing agent may for example be formed as an adhesive layer, single-sided or double-sided adhesive tape, glued-on foil or the like, preferably while allowing the sealing strip to roll up.
  • the wide side provided with the incision opening may be provided with an outer adhesive layer, in particular a self-adhesive layer, or another fastening means which extends at least partially or completely over the barrier layer section lying outside of the incision.
  • the fastening means in particular adhesive layer such as e.g. double-sided self-adhesive layer, the positional fixation of the barrier layer with respect to the foam body and / or attachment of the sealing tape to another component such. a masonry reveal or serve on a frame member.
  • the fastening means may define at least one or all of the barrier layer sections lying outside the incision on the sealing strip or foam body.
  • the bridging means may be provided in addition to or identical to the attachment means.
  • the barrier layer can be adhered within the incision at least in sections or over its entire height only on one side with the foam body.
  • the foam body in a completely free relaxed state (outside the joint) of the sealing strip, the foam body preferably bears on both sides against the barrier layer, on both sides respectively 25-50% or ⁇ 75-90% or practically 100% of the surface extent of the two incision flanks of the foam body ,
  • the adhesive compound is in each case by an adhesive layer.
  • the barrier layer is readily compressible with the sealing band body and does not hinder the expansion of the compressed sealing band.
  • the barrier layer on both sides of the same area may not be adhesively bonded to the foam body.
  • the barrier layer on one of the sides thereof is not adhesively bonded to the foam body, on the other side in regions or over the entire surface.
  • the barrier layer sections which are not adhesively bonded to the foam body preferably extend over ⁇ 20 to 35% or preferably ⁇ 50 to 65% or particularly preferably ⁇ 75 to 90% over the height of the barrier layer or virtually over the entire barrier layer height.
  • the barrier layer is not adhered to the foam body over said height of ⁇ 20 to 35%, ⁇ 50 to 65%, or more preferably ⁇ 75 to 90% on either side thereof.
  • a non-adhesion of ⁇ 75 to 90% or about 100% is preferred, taking into account a height of the sealing tape of about 35% when placed in a joint based on the fully relaxed state (outside the joint).
  • the respective adhesive for adhering the barrier layer to the foam body preferably produces an adhesion force which is greater than any stickiness of an impregnate of the foam material, preferably 2- 2 to 5 times or ⁇ 10 to 20 times the same.
  • the barrier layer on one side thereof is not adhesively bonded to the foam body over its entire height.
  • the barrier layer may also be connected to the foam body at least in sections, over its entire height, on both sides, on both flanks of the cut.
  • the barrier layer is formed as a film, preferably as a continuous film without openings.
  • the film can also Have openings.
  • the film is preferably limp, so that it does not hinder compression or subsequent relaxation of the sealing strip.
  • the film may be of a conventional air permeability reducing material, for example a polyolefin such as polyethylene, a polyamide, polyester, polyacrylate or the like, optionally also a film whose water vapor transmission resistance changes with humidity such as an ionomer film.
  • the barrier layer can also consist, for example, of a paper material, dense fleece, self-adhesive film on one side or the like.
  • the barrier layer can also be formed by a coating composition, for example a coating compound that sets air or oxygen, a hot melt adhesive (hotmelt) or the like.
  • a coating composition for example a coating compound that sets air or oxygen, a hot melt adhesive (hotmelt) or the like.
  • hotmelt hot melt adhesive
  • Such a mass can be introduced into the laterally widened incision, wherein the incision is brought back into its initial position preferably after setting or cooling of the coating mass in a non-sticky state.
  • the coating composition may be, for example, a silicone or thermoplastic material.
  • the sealing tape is impregnated for delayed recovery.
  • the impregnate may in particular contain an acrylate as essential component, in particular a polyacrylate.
  • the barrier layer material is formed so that this does not obstruct the delayed recovery of the sealing tape or only insignificantly.
  • An adhesive or adhesive described in the context of the invention has this a stronger bonding force to the barrier layer than any stickiness of the impregnate, for example greater than or equal to the factor 2-5 or greater / equal to the factor 10-20, for example, until then, that the barrier layer only with destruction of the adjacent sealing strip material from the sealing tape is removable.
  • the barrier layer may have an air permeability of ⁇ 2-5 l / m 2 s or preferably ⁇ 0.5-1 l / m 2 s or ⁇ 0.1-0.25 l / m 2 s or particularly preferably ⁇ 0.01 0.05 l / m 2 s at a measuring pressure (negative pressure) of 1 mbar have (measuring area 100 cm 2 ).
  • the air permeability is determined here, and generally in the context of the invention, according to DIN EN ISO 9237.
  • the braking effect of the sealing strip can be further varied overall, which may be desired for special cases, if necessary, also varies more precisely than the Schaumstoffstegiere, since the material properties of the barrier layer are more precisely defined the geometric cross-sectional extent of the barrier layer.
  • the foam material of the sealing strip (in the ready-to-use or impregnated state) has an air permeability of up to 600-800 l / m 2 s, for example in the range from 100 to 600 l / m 2 s or 100 to 400 l / m 2 s or even only up to 100-150 l / m 2 s or even only 50-75 l / m 2 / s or less.
  • This is understood in each case and also generally within the scope of the invention under the test conditions
  • Frank test device No. 21443 100 cm 2 sample diameter, 1 cm sample thickness, 0.5 mbar differential pressure, relaxed state, DIN EN ISO 9237.
  • the barrier layer material is preferably formed such that it is water vapor diffusion-braking, if necessary also open to diffusion.
  • the barrier layer can the water vapor diffusion (WDD) resistance of the sealing tape can be increased by a factor of 1.5-500 or 2-150 relative to the sealing tape without a barrier layer, generally greater than or equal to the factor 1.5-2 or greater / equal to 5-10.
  • the material of the foam web remaining at the incision base has practically the same or at least approximately one WDD resistance (SD value according to DIN EN ISO 12572), like the two substructures of the foam body opposite the barrier layer, preferably with a difference of ⁇ 50 to 75%. or ⁇ 10 to 30% of the s D value thereof (although certain differences may be achieved by additional impregnation of the foam web or by other suitable means, although this is not usually required).
  • SD value according to DIN EN ISO 12572
  • the foam body is preferably made of an impregnated, soft, compression-recoverable foam material.
  • the broad sides generally have a greater width than the narrow sides when the sealing strip is completely relaxed, but this is not generally mandatory. In general, the broad sides in installation position of the band facing the joint edges (soffits), the narrow sides of the open sides of the joint.
  • a foam body preform is provided for this purpose, the width of which is a multiple of the width of a ready-to-use sealing tape, preferably an integer multiple thereof, for example ⁇ 2-3 times or ⁇ 5-20 times the width of the same.
  • the preform may for example have a width of about 50 cm to 2 m.
  • the provided foam body preform is preferably made of soft, resilient foam material, preferably PU foam.
  • the preform may be impregnated for delayed recovery.
  • the preform may, for example, be wound up on a roll or may be added continuously from a preceding process step, for example impregnation (for example for delayed recovery) and drying to a cutting device for producing the cuts in the foam body preform.
  • the device for generating the incision added only a sealing tape, which corresponds to the sealing bandwidth of the ready-to-use sealing tape.
  • the sealing tape is then provided with a cut in the longitudinal direction of the tape, leaving a foam web connecting the two foam sections opposite the cut.
  • the preform is provided with a number of cuts, which extend in the sealing tape longitudinal direction, preferably parallel to each other.
  • the incision number preferably corresponds to said multiple.
  • these different cuts are arranged at a constant lateral distance from each other.
  • the cuts can be made by suitable knives, for example by rotating knives.
  • the incision depth and / or incision position is constant over the length of the sealing strip.
  • the incision of the sealing band or the plurality of incisions of the sealing band preform is opened by suitable opening means (opening step) in order to facilitate the introduction of the barrier layer into the incision.
  • the opening means may be in the form of a curved surface or in the manner of a mandrel whose direction of curvature is substantially transverse or perpendicular to the sealing band longitudinal direction, and at the cross-sectional contour of the sealing strip is adjusted.
  • the sealing strip is thus transferred in relation to its width in a curved state.
  • the incisions are in this case arranged on the side facing away from the curved surface or the mandrel, so that the incisions open to the outside.
  • opening means may be introduced in the manner of plowshares in the cuts under the expansion. This step can be done simultaneously for several or all of the cuts simultaneously.
  • the barrier layer is introduced (introduction step), for example by means of an insertion tool or a delivery device.
  • the Einterrorism ground facing the barrier area can be pressed into the incision.
  • the barrier layer is arranged in two or more layers in the incision.
  • the introduction device for example, have an insertion tool in the form of a strip or a turntable, which penetrates into the incision, preferably approaching to the vicinity or up to the incision reason.
  • the insertion tool in the region of the barrier layer which is adjacent to the incision base next to the barrier layer, press it into its desired position into the incision. This step can be done simultaneously for several or all of the cuts done simultaneously.
  • the supplied web of the barrier material for this purpose has a suitable width, which may be greater than the width of the sealing strip preform.
  • the continuous web of the barrier layer material can first be introduced in sections into the respective cuts of the preform, so that the web is subsequently subsequently cut strip-like in the sealing strip longitudinal direction together with the sealing strip or temporally upstream or downstream therefrom. This means that a broad side of the web can be completely covered with the brake material and all incisions can be filled.
  • the barrier layer web can also be cut in strips or be divided and the respective longitudinal strips are each introduced individually into the incisions, wherein the barrier layer strips can be connected to one another in another longitudinal section of the barrier layer web.
  • the incisions are then closed, for example, by returning the sealing strip or the sealing strip preform to its initial state.
  • an adhesive can be inserted into or attached to the incision or an adjacent region of the sealing strip in order to indirectly or directly adhere the barrier layer to the foam body by means of this.
  • the introduction of the adhesive into the recess may occur before the barrier material is introduced into the recess.
  • the adhesive may also be attached to the portions of the barrier sheet and incorporated with it into the cut. The adhesive is then brought to setting or adhering, preferably after closing the incision, optionally also before.
  • the coating agent is preferably brought to setting or cooling (ie in a no longer sticky or adhesive state having), so that then after closing the incision, the coating material is adhesively bonded to only one side of the incision, but not with the opposite side, to facilitate compression and expansion of the sealing tape.
  • the impregnated wet preform can be cut, wherein the barrier film sections, which need not necessarily be self-adhesive, are introduced into the incision and stick together during the subsequent drying process with the foam impregnate.
  • a designated Hotmelt (hot melt) equipment of the film can be activated during thermal drying. Advantages of this variant are easy insertion of the film in the "greasy" because still wet impregnated foam. Eventually no additional glue is necessary. Use of the drying process for hotmelt activation is possible.
  • the method thus comprises the steps of providing a foam body, introducing at least one incision into the foam body, preferably opening the incision, preferably introducing a fastener in the recess for fixing the barrier layer, introducing a barrier layer in the incision (the last two steps also, if necessary in reverse order), fixing the barrier layer in the incision.
  • the method comprises the steps of providing a foam body preform having a width of multiple sealing tape width, inserting a plurality of juxtaposed cuts in the foam body, inserting a barrier layer in the respective incision (the last two steps possibly also in reverse order), fixing the barrier layer in the incision (optionally attachment of a bridging means and / or outside fastener to the respective preform section with incision), compressing and dividing the preform into several Sealing tapes, preferably according to the number of incisions.
  • the plurality of incisions introduced into the preform are then arranged after being divided into different sealing bands.
  • the incisions are opened before the barrier layer is introduced into them.
  • a respective fastening means is introduced into the incisions for fixing the respective barrier layer in the respective incision, particularly preferably in combination with the incision opening.
  • the incisions may each be introduced in groups, for example by means of incision means arranged one behind the other, such as e.g. Knives, each of the groups comprising a plurality of cutting means. This applies in particular to one or more of the method steps of incision insertion, incision opening, barrier layer insertion.
  • both body parts can be held together by a bridging means or by two bridging means on both broad sides, additionally or alternatively also by a bond such as bonding in the barrier-free region of the body.
  • sealing band body with usable width (width of preform equal to sealing band width) can be.
  • FIG. 1a shows a sealing tape 1 for sealing between two structural parts (s. Fig. 4 ), for example, between a frame member such as window frame and masonry reveal.
  • the sealing tape 1 has two opposite broad sides 2, which are arranged in the joint opposite the building parts and preferably abut sealingly on these. Furthermore, 2 extending narrow sides 3 of the sealing strip 1 are provided transversely to the broad sides, which face the open joint sides in installation position of the sealing strip 1. Between the opposite narrow sides 3 extends a continuous air permeability path LD, which can occupy the entire cross section of the sealing strip.
  • the sealing tape 1 thus has a body 4 made of a foam material, which is bounded by the two broad sides 2 and two narrow sides 3. The foam material is permeable to air and permeable to water vapor diffusion.
  • the sealing tape 1 comprises a barrier layer 5 made of a different material from the foam, which extends at least partially over the cross section of the air permeability path.
  • the barrier layer 5 is in this case arranged at least partially within the sealing strip.
  • the two opposite narrow sides 3 are not covered on the outside by the barrier layer 5, even if this is possible (at least in part).
  • the barrier layer 5 is arranged in an incision 6, the incision 6 penetrating the sealing tape 1 only partially leaving a foam web 7, so that the web 7 integrally connects the two barrier regions 5 opposite portions 4a, 4b of the foam body 4 (only for graphical representation of the incision is shown with a certain width).
  • the incision 6 in this case extends over the greater part of the sealing strip cross-section, so that the web 7 is dimensioned comparatively small and accounts for about 2 to 10% of the height of the completely free relaxed band.
  • almost the entire cross-sectional area of the sealing strip 1 with respect to the air permeability through the barrier layer 5 is determined (if necessary, however, the web can also have a greater height relative to the sealing strip height).
  • the web may, for example, have a height of 2 to 5 mm.
  • the barrier layer extends here over the entire depth of the incision 6, that is, from the incision opening 6a (arranged here on the broad side) to the incision base 6b, even if a smaller depth extension is possibly possible.
  • the barrier layer is formed continuously and without interruption.
  • the incision 6 is here arranged perpendicular to one or both broad sides 2 of the sealing strip 1.
  • the incision for example, also extend obliquely to at least one of the broad sides of the sealing strip, the remaining embodiments of the embodiments relate to such a cut arrangement.
  • the incision 6 in the band cross-sectional direction is rectilinear, ie in the manner of a flat incision formed.
  • the incision 6 therefore does not have an incision region which extends at the incision base or another subregion of the incision 6 transversely to the incision region opening out on the outside of the sealing strip 1.
  • the incision 6 opens at a broad side 2 of the sealing strip 1, where appropriate, this may also lead to a narrow side 3, the remaining embodiments of the embodiments relate to this, unless otherwise stated in the context.
  • the barrier layer 5 is disposed within the incision and optionally on the broad sides of the sealing strip, the visible in the joint areas of the sealing strip, i. the side surfaces thereof, not covered by the barrier layer, so that the visual appearance of the sealing tape 1 in the joint is not changed by the barrier layer.
  • the barrier layer material can also be brought at least to directly on the narrow side 3 of the sealing strip 1, so that even when mounted in the joint sealing strip is recognizable, from which side of the barrier layer - or closer to which of the narrow sides - the barrier layer is arranged ,
  • the barrier layer 5 is formed of a film material, here from a pliable film, which does not or hardly obstructs a provision of the sealing strip 1 from a compressed state.
  • the barrier layer 5 is arranged with a partial section 5a within the recess 6, with another partial section 5b outside the recess 6.
  • the partial section 5a is partially or completely connected to one (preferably only one) of the incision flanks of the foam body 7.
  • the barrier layer material is adhesively bonded to the foam body 4 in the area of the recess bottom 6b, for example by an adhesive 6c.
  • the barrier layer is connected to the foam body 7 in the region of the cutout 6a, preferably within the recess 6.
  • the portion 5b of the barrier layer arranged outside the foam body 7 is preferably adhesively bonded to the foam body 4, including the barrier layer, for example as a film, with a self-adhesive layer equipped can be.
  • the individual adhesive areas may be provided in combination or independently of each other.
  • other fastening means for fixing the barrier layer 5 to the foam body 4 may be provided in each case.
  • the incision 6 On the side (wide or narrow side), with the incision opening 6a, the incision 6 is covered by a bridging means 8.
  • the bridging means can be adhered to one, here on both sides of the incision, opposite the foam body 4, in this case absorbing tensile force.
  • the attachment regions 8a of the bridging means 8 are here each directly connected to the foam body 7.
  • the attachment regions 8a here are each the end regions of the bridging means.
  • the bridging means 8 is in this case at the same time designed as a fastening means for fastening the sealing strip 1 to another component such as a frame member or masonry reveal, which limit the joint.
  • the bridging agent is formed as a double-sided adhesive, for example double-sided adhesive tape or double-sided self-adhesive layer.
  • the bridging means and the fastening means for fixing the sealing strip 1 on the other component may also be formed as different means, the bridging means may extend laterally (narrow side to narrow side) only over a portion of the broad side, the fastening means over another part the broadside, for example, the entire broadside (in each case with respect to the tape cross-section).
  • the bridging means and the fastener may generally vary in extent have the Dichtbandbreitseite. It is generally understood that outside adhesive layers are protected by a cover sheet 8b such as silicone paper before use.
  • the bridging means extends over the entire length of the incision.
  • a reinforcing layer 9 is provided on the broad side facing the cutting base, for example in the form of an adhesive layer or an adhesive tape, optionally double-sided adhesive with cover layer. As a result, the connecting web 7 is additionally stabilized.
  • the barrier layer here consists of a foil, e.g. a polyolefin or polyamide film, optionally also from a paper layer, nonwoven layer, ionomer film or combinations thereof.
  • a plurality of incisions 6 with barrier layers may also be provided on the sealing band, which may have different functions or water vapor diffusion resistances.
  • the various cuts 6 may each be attached to the same side (broad or narrow side) or on different or opposite sides of the sealing strip. This can generally apply in the context of the invention.
  • FIG. 2a shows a modification of the embodiment according to FIG. 1a , to which reference is otherwise made.
  • the barrier layer here has two (possibly only one) subsections 5d, 5e, which are arranged outside the notch on the outside of the sealing strip.
  • the two sections 5d, 5e are folded down to different narrow sides.
  • Both of the sections 5d, 5e are here respectively adhered to the foam body 4, for example by adhesive 4a.
  • the recess 6 is preferably bridged by a bridging means, which is at least on one side, here on both sides of the recess 6 adhesively bonded to the foam body 4 to the incision 6 against ingress of foreign substances protect, preferably this together when handling the sealing strip 1.
  • the bridging means 8 extends here beyond the two longitudinal edges 5f, 5g on the barrier layer 5 beyond the respective sealing band side (corresponding to at Fig. 1 on one side).
  • bridging means 8 and fastening means 10 for fastening sealing tape 1 to another component are designed here as different components (with cover layer 10a), if necessary bridging means 8 are at the same time fastening means 10 (preferably provided with cover layer).
  • the bridging means and / or the fastening means may be formed as a double-acting adhesive, for example double-sided self-adhesive layer.
  • the fastening means extends here over the entire width of the sealing strip 1, without this being always necessary.
  • a layer of the barrier layer 5 is adhered to the foam body 4, for example by an adhesive layer, but not the other barrier layer layer.
  • the adhesion of the one layer takes place over the entire surface, possibly over part of the area.
  • only one of the two incision flanks of the foam body can be provided with an adhesive, for which purpose then the barrier layer 5 is introduced into the incision 6.
  • both barrier layer layers may be partially adhesively bonded to the foam body 4, for example in the region of the recess base and the muzzle, in particular, only at these areas within the incision 6.
  • the adhesion region extend the barrier layer 5 at the incision bottom over a certain height of the incision 6, wherein here also a two-sided adhesion to the two incision flanks of the foam body 7 can take place, so that the connection region of the two body parts is reinforced at the connecting web 7.
  • FIG. 3a shows a further embodiment as a modification of FIG. 1a , in which case the barrier layer is produced by a setting coating material 11.
  • the set coating agent 11 has no adhesion to newly contacted with this objects. If the coating agent applied to an incision side of the foam body 4 is thus brought to set, then it adheres to this same incision side, but not to the opposite one. If then (below) the recess 6 is closed, for example by relaxing the sealing tape 1 or transfer to its initial position (elongated cross-sectional arrangement), the barrier layer is only on one side within the recess 6 with the foam body 4, resulting in compression of the sealing strip 1 or whose provision facilitates.
  • the barrier layer 5 can be connected to the foam body 4 on both sides over a small part of the notch height.
  • the sealing tape 1 according to the embodiments 1a, 2a, 3a is produced by a method as set out in the introduction to the description, preferably using a foam body preform with multiple sealing tape broadside. Several of the cuts, which are then assigned after separation of the foam body different sealing bands are introduced simultaneously into the foam body.
  • FIGS. 1a . 2a . 3a show modifications of each of the embodiments of the FIGS. 1a . 2a . 3a , wherein instead of the incision, a sealing tape body completely penetrating through-cut 25 is provided.
  • a sealing tape body completely penetrating through-cut 25 is provided.
  • the Both body parts 21a, 21b made of foam may in this case consist in particular of the same material, possibly with different equipment such as restoring and / or driving rain impregnation. According to the example, both body parts are formed from the same preform by severing it.
  • the barrier layer-free areas 21c of the two body parts after the Figures 1b . 2 B . 3b can not be adhered or glued to each other, the two body parts can be adhered or glued to each other via the barrier layer.
  • the two body parts 21a, 21b by means of the barrier layer-free contact areas of the body parts are stuck together or glued together, whereby a provision of the compressed sealing tape is less hindered.
  • the adhesion or adhesion is here water vapor diffusion-braking. at Fig.
  • the barrier layer layers can also be connected to one another by an adhesive or adhesive or a bridging agent.
  • both end regions of the transection can also be bridged by a bridging means. If there is no additional bridging agent, preferably a full-surface self-adhesive assembly takes over this function.
  • FIG. 4 shows an arrangement of a sealing strip 1 according to the invention within a building joint 101, which is bounded by the two components 100, for example, frame part and masonry reveal. This can apply accordingly for all embodiments.
  • the sealing strip is in this case arranged in the joint such that the barrier layer 5 is arranged pointing towards the interior space RI, with reference to the median plane 1a of the sealing strip 1.
  • the sealing band body 1 is impregnated for delayed recovery, for example by means of a polyacrylate.
  • the foam material of the body in this case has an air permeability of about 200 lm 2 / s according to the test conditions described, the barrier layer is virtually impermeable to air (air permeability ⁇ 0.5 lm 2 / s).

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP13168333.6A 2012-05-23 2013-05-17 Dichtband Active EP2666947B1 (de)

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PL2990553T3 (pl) 2014-08-26 2020-06-29 Iso-Chemie Gmbh Sposób wytwarzania rolki taśmy uszczelniającej
PL2990576T3 (pl) * 2014-08-26 2020-04-30 Iso-Chemie Gmbh Taśma uszczelniająca do uszczelniania szczeliny
DK2990575T3 (da) * 2014-08-26 2020-03-02 Iso Chemie Gmbh Tætningsbånd til tætning af en fuge
PL2990551T3 (pl) 2014-08-26 2019-11-29 Iso Chemie Gmbh Sposób wytwarzania rolki taśmy uszczelniającej
DE102015116667A1 (de) 2015-10-01 2017-04-06 Tremco Illbruck Produktion Gmbh Verfahren zum Herstellen eines Abdichtbands und Abdichtband
DE102017105323A1 (de) * 2017-03-14 2018-09-20 Tremco Illbruck Produktion Gmbh Dichtband und Verfahren zum Herstellen eines Dichtbandes
DE102017110856A1 (de) 2017-05-18 2018-12-06 tremco illbruck GmbH Herstellungsverfahren für Dichtband und Dichtband
EP3453806B2 (de) 2017-09-01 2023-10-11 ISO-Chemie GmbH Dichtelement
DK3608496T3 (da) 2018-08-07 2021-04-12 Iso Chemie Gmbh Tætningsbåndrulle af et tætningsbånd med indvendigt liggende spærrelag
EP3608481B1 (de) * 2018-08-07 2020-10-14 ISO-Chemie GmbH Dichtbandrolle aus einem dichtband mit innenliegenden sperrschichten
EP4008871A1 (de) * 2020-01-20 2022-06-08 ISO-Chemie GmbH Dichtbandrolle

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PL2666947T3 (pl) 2018-01-31
EP2666947A3 (de) 2014-12-17
DE202012005049U1 (de) 2013-08-26

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