EP2927386A1 - Matériau de plaque à plusieurs parois et ruban d'étanchéité pour celui-ci - Google Patents

Matériau de plaque à plusieurs parois et ruban d'étanchéité pour celui-ci Download PDF

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Publication number
EP2927386A1
EP2927386A1 EP15161515.0A EP15161515A EP2927386A1 EP 2927386 A1 EP2927386 A1 EP 2927386A1 EP 15161515 A EP15161515 A EP 15161515A EP 2927386 A1 EP2927386 A1 EP 2927386A1
Authority
EP
European Patent Office
Prior art keywords
plate material
carrier
filter layer
walled plate
size
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.)
Granted
Application number
EP15161515.0A
Other languages
German (de)
English (en)
Other versions
EP2927386B1 (fr
Inventor
Johannes Wilhelmus Gerardus Hooft
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.)
Multifoil BV
Original Assignee
Multifoil BV
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Filing date
Publication date
Application filed by Multifoil BV filed Critical Multifoil BV
Publication of EP2927386A1 publication Critical patent/EP2927386A1/fr
Application granted granted Critical
Publication of EP2927386B1 publication Critical patent/EP2927386B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/54—Slab-like translucent elements
    • E04C2/543—Hollow multi-walled panels with integrated webs

Definitions

  • the present invention relates to a multi-walled plate material comprising a first plate body and a second plate body which are separated from each other by at least one intermediate cavity, which cavity opens with a cavity opening on at least one outer end, wherein the cavity is sealed at the outer end with a breathing sealing tape which is at least substantially dust-tight but water vapour-permeable.
  • Such plate material is applied particularly in an outdoor environment as usually transparent or translucent roof covering in light corridors, roof coverings and other situations in which entry of daylight is desired under a watertight canopy.
  • the plate material lies horizontally here or at a certain incline for an adequate drainage.
  • such plate material is also increasingly being applied in the interior of offices, dwellings and other buildings as transparent or partially transparent partition wall, wherein the plate material is applied substantially vertically.
  • a critical factor here is the internal moisture management in the cavity or cavities which are present in the plate material and which enhance thermal insulation of the material.
  • a certain cold and heat exchange unavoidably takes place between the cavity and the surrounding area, whereby condensation can occur in the cavity.
  • the cavity In order to avoid this resulting in an ideal breeding ground for fungi, bacteria and other (micro-)organisms, the cavity has to be sealed as dust-tightly as possible in order to prevent penetration thereof while a water vapour exchange and drainage to the surrounding area nevertheless remains possible.
  • EP 376386 of applicant specifies a sealing tape which can be applied to the end surface of a multi-walled plate material and which, while being permeable to water vapour and water, is also dust-tight.
  • the tape comprises a carrier here in the form of an aluminium tape in which macroscopic openings are provided which are in register with the cavity outer ends.
  • a filter tape Arranged at least over the openings on a side facing toward the cavity is a filter tape in the form of a non-woven textile of polyester or other fibres with a more or less random pore structure which provides for the desired dust-tightness for particles from a size of roughly 45 micron, while the structure is nevertheless sufficiently open to allow vapour and moisture transport therethrough.
  • the present invention has for its object, among others, to provide a multi-walled plate material and a sealing tape which meets this requirement.
  • a plate material of the type described in the preamble and a sealing tape have the feature according to the present invention that the sealing tape comprises a micro-porous carrier with at least a breathing zone which is permeable to water and water vapour but is dust-tight for particles from a first size, that at least the zone of the carrier is covered with a filter layer which comprises at least one breathing membrane wall which is at least water vapour-permeable but dust-tight for particles from a second size, which second size is smaller than the first size, and that the tape is folded with at least the carrier round the outer end of both plate bodies and is received with opposite longitudinal sides above respective edge parts of the first plate body and the second plate body, wherein the filter layer extends at least over the cavity opening.
  • the pores of the carrier are thus sealed at least at the position of the zone by the at least one membrane wall of the filter layer in a manner such that at least water vapour-exchanging communication with the surrounding area is maintained.
  • the carrier functions as buffer and support for the filter layer and also as pre-filter which blocks particles from the first size, while the actual filter layer will also exclude smaller particles of a dimension between the first and second sizes.
  • the carrier is permeable here to both moisture and water vapour, while the filter layer is at least vapour-permeable.
  • the cavity of the plate material is therefore also hermetically sealed to these small particles while an adequate moisture management nevertheless remains available inside the cavity.
  • the filter layer can be embodied per se in various ways with a breathing membrane.
  • a first preferred embodiment of the sealing tape and plate material has in this respect the feature that the filter layer comprises a film forming the membrane, and a more particular embodiment that the film comprises a porous polytetrafluoroethylene film.
  • Such a membrane film is commercially available under various brand names, among others the brand name Gore-Tex®, and has the characteristic feature that it is to a certain extent permeable to water vapour while the material is substantially watertight up to a certain hydrostatic pressure.
  • the present invention couples an additional feature hereto, namely that particles from the second size will also be blocked thereby.
  • the membrane is preferably embodied here such that said hydrostatic pressure is minimal, for instance in the order of only several pascal, so as to form a minimal barrier to condensation, also in the liquid phase. This is particularly advantageous when the plate material is applied at an incline, for instance as roof or covering.
  • a second preferred embodiment of the sealing tape and plate material has in this respect the feature that the filter layer comprises a foam with cells which are separated from each other by a wall forming the membrane, and in a more particular embodiment the foam comprises a hydrophilic foam, more particularly a hydrophilic polyurethane foam.
  • Foamed plastics in particular are suitable in this respect for application within the scope of the invention because of their durability.
  • Ultra-thin cell walls are formed during foaming which are found to be to great extent dust-tight but sufficiently thin and 'open' to nevertheless breathe and allow passage of water vapour. This process can be precisely controlled and managed using so-called foaming agents, whereby the wall thickness of the cell walls and other properties of the foam can be influenced.
  • hydrophilic foam layer functions here as it were as moisture buffer which absorbs and slowly but surely relinquishes condensation from the cavity in both vapour form and liquid form which is then evacuated.
  • the filter layer thus contributes in significant measure toward a reduction in visible condensation and staining caused thereby in the cavity.
  • a further preferred embodiment of the plate material and the sealing tape is characterized according to the invention in that the carrier comprises a porous hydrophilic material.
  • the hydrophilic carrier thus enhances moisture transport from or to the filter layer. Exceptionally good results have been achieved in this respect with a particular embodiment of the sealing tape and plate material according to the invention which is characterized in that the carrier comprises a non-woven tape of hydrophilic synthetic fibres, in particular hydrophilic (coated) polyester fibres.
  • a particularly practical embodiment of the plate material and sealing tape according to the invention has the feature that the carrier comprises adhesive strips which adhere to the longitudinal sides and with which the tape is fixed, and that the filter layer is optionally arranged on the same main surface between the adhesive strips on the carrier.
  • the sealing tape can be arranged here by being glued simultaneously, or be provided beforehand at the position of the adhesive strips with a (self-)adhesive layer which is covered until the moment of adhesion with a protective film, for instance of silicone paper.
  • a particular embodiment of the sealing tape and the plate material has the feature here according to the invention that the carrier comprises the filter layer on a side remote from the adhesive strips. Evacuation of moisture thus remains possible in accordance with the above described mechanism even if the filter layer breathes and is vapour-permeable but to a certain extent leakproof.
  • a further particular embodiment of the plate material and sealing tape is characterized according to the invention in that the carrier is provided on a side remote from the adhesive strips with a hydrophobic masking layer in a pattern completely sealing the carrier locally but leaving it clear elsewhere.
  • the hydrophobic masking layer functions here as a barrier to moisture which could otherwise penetrate from outside through the sealing tape into the cavity. Sufficient surface area of the carrier can nevertheless remain free thereof so that the overall breathing and (water) vapour-permeable capacity of the sealing tape is not thereby compromised.
  • the plate material and the sealing tape are characterized according to the invention in that the first size lies in a range of about 1 to 20 micron and the second size in a range of about 25 to 50 micron.
  • the invention also relates to a sealing tape of the type as applied in the above described multi-walled plate material according to invention, and will be further elucidated hereinbelow on the basis of a number of exemplary embodiments and an associated drawing.
  • a sealing tape of the type as applied in the above described multi-walled plate material according to invention will be further elucidated hereinbelow on the basis of a number of exemplary embodiments and an associated drawing.
  • Figure 1 shows a double-walled plate material constructed from a first plate body 10 and a second plate body 20 which are separated from each other and held at a distance from each other by a number of parallel ribs 25.
  • a wholly transparent plastic such as polymethyl methacrylate (PMMA) or polycarbonate, and the parts are glued together.
  • PMMA polymethyl methacrylate
  • the cavity channels finally debouch at an opposite end surface of the plate material, one of which is shown in figure 2 .
  • Cavity channels 15 open with a cavity opening 16 on the end surfaces.
  • a sealing tape 30 according to the invention.
  • This sealing tape 30 is dust-tight but breathing and thereby allows more or less free passage of water vapour.
  • Sealing tape 30 extends over a whole end surface and is in turn covered with a closing profile 40 of aluminium or a suitable plastic. This closing profile maintains internally a distance from the breathing surface of sealing tape 30 which hereby retains the breathing and optionally a drainage capacity.
  • the sealing tape of figure 2 is shown in more detail in figure 3 .
  • It comprises a breathing carrier 31 in the form of a non-woven textile of hydrophilic synthetic fibres, in this example of polyester fibres which have been provided with a hydrophilic coating.
  • the carrier has a thickness in the order of 200 to 900 micron and, because of its hydrophilic properties, is highly capable of transporting condensation moisture possibly occurring in cavity channels 16.
  • Carrier 31 comprises on opposite longitudinal sides adhesive strips at the position of which an adhesive layer 33 is arranged for the purpose of being folded round the outer end of the plate material and being adhered to the surface of the first and second plate bodies 10,20. This adhesion is further supported by closing profile 40 which is pushed tightly over the sealing tape and will exert a certain clamping force on adhesive strips 33.
  • Carrier 31 with its more less random non-woven structure is able to filter dust particles and micro-organisms from a first size in the order of 25 to 50 micron, but will allow passage of smaller particles and micro-organisms.
  • carrier 31 has a micro-fine pore structure with an average pore size in the order of 30 micron.
  • carrier 31 is permeable to both water and water vapour and is in addition able to absorb and thus buffer a relatively large amount of water.
  • the carrier 31 is provided in a central zone with a filter layer 32 which is able to effectively block particles from a second size in the order of 10 to 20 micron.
  • Filter layer 32 comprises for this purpose a breathing microporous membrane film with micropores of the stated fine dimensions, in this example a stretched polytetrafluoroethylene film, which is freely available commercially under for instance the brand name Gore-Tex®, or similar film. Film 32 is glued to carrier 31 along opposite longitudinal edges thereof and retains its breathing and filtering properties therebetween.
  • the filter layer 32 is provided solely in the central zone of carrier 31, although the filter layer can instead also be arranged over the whole surface area. What is important here is that the cavity openings 16 will always be fully covered as shown in figure 2 .
  • Figure 4 shows a second exemplary embodiment of a sealing tape according to the invention which can be applied as alternative.
  • This embodiment is largely similar to that of figure 3 , although in this example a microporous foam layer 32 is arranged as filter layer on the carrier instead of a microporous membrane film.
  • Use is made here of hydrophilic polyurethane foam, although other foamed plastics can also be applied instead.
  • the cells of the foam formed herefrom are separated from each other by extremely thin cell walls, wherein because of their small thickness the cell walls retain a breathing and moisture-permeable capacity while being to large extent dust-tight for particles from a second size of only several micron or even less than one micron.
  • the foam of this example is dust-tight for particles from in the order of about 5 micron.
  • the foam layer is advantageously foamed directly onto the carrier, thereby ensuring an adequate mutual adhesion.
  • This process can be controlled in great measure using so-called foaming agents, whereby a cell wall thickness, a cell size and hydrophilic properties are adjustable.
  • foaming agents whereby a cell wall thickness, a cell size and hydrophilic properties are adjustable.
  • such a foam has a high swelling capacity upon contact with water. It is hereby able to take up and absorb more than its own original volume of moisture and then gradually allow passage thereof.
  • Such a foam is therefore highly suitable for the application described here.
  • FIG. 5 A third exemplary embodiment of a sealing tape according to the invention is shown in figure 5 .
  • filter layer 32 is not arranged on a side of the carrier remote from adhesive strips 33 but on the same side.
  • Filter layer 32 is preferably also water-permeable in such a case in order to also allow draining of condensation in the liquid phase.
  • a hydrophobic masking layer 35 can be provided on the tape which fully seals the tape at the position of a pattern arranged therein but leaves the pattern clear in between, as shown by way of illustration in the exemplary embodiment of figure 6 .
  • Masking layer 35 comprises for instance a watertight hydrophobic ink or glue arranged by means of screenprinting or printing on carrier 31.
  • the hydrophobic properties hereof impart a great water-repellent character to the tape despite the hydrophilic properties of the carrier located thereunder.
  • a lesser or greater water repellence of the sealing tape can be adjusted by selecting a finer or coarser pattern of the carrier.
  • the invention has been further elucidated on the basis of double-walled plate material, the invention can likewise be applied in multi-walled plate material assembled from more than two plate bodies with cavity channels between them in each case.
  • the materials and dimensions which have been given, although being particularly practical in use, are exchangeable for other materials and dimensions, particularly when a specific application requires this.
  • the plate material can be applied horizontally, optionally at an incline, and vertically, for instance as partition wall.
  • an upper outer end of the plate material will be sealed with a sealing tape according to the invention in order to enhance natural ventilation of the cavity, although the same manner of sealing can also be applied at a lower outer end.
  • Both the given embodiments of the filter layer can be arranged internally as well as externally of the carrier and here be provided full-face, i.e. over the whole surface, or only in one or more zones of the carrier. In this latter case the zones will in any case lie over a full cross-sectional area of the cavity opening(s).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP15161515.0A 2014-04-02 2015-03-27 Matériau de plaque à plusieurs parois et ruban d'étanchéité pour celui-ci Not-in-force EP2927386B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2012549A NL2012549B1 (nl) 2014-04-02 2014-04-02 Meerwandig plaatmateriaal en afsluitband daarvoor.

Publications (2)

Publication Number Publication Date
EP2927386A1 true EP2927386A1 (fr) 2015-10-07
EP2927386B1 EP2927386B1 (fr) 2017-06-28

Family

ID=51022989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15161515.0A Not-in-force EP2927386B1 (fr) 2014-04-02 2015-03-27 Matériau de plaque à plusieurs parois et ruban d'étanchéité pour celui-ci

Country Status (2)

Country Link
EP (1) EP2927386B1 (fr)
NL (1) NL2012549B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3428363A1 (fr) * 2017-07-13 2019-01-16 Multifoil B.V. Materiau en forme de plaque à parois multiples et bande filtrante

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838641A1 (de) * 1988-11-15 1990-05-17 Power Systeme Ges Fuer Tech Ge Stegdoppelplatte od. dgl.
EP0376386A1 (fr) 1988-12-29 1990-07-04 Multifoil B.V. Procédé pour brancher les ouvertures dans la surface d'un matériau plan multicouche synthétique et feuille à cet effet
EP0825309A1 (fr) * 1996-08-22 1998-02-25 Multifoil B.V. Ruban d'étanchéité, panneau en matériau synthétique étanchéifié avec celui-ci et procédé d'étanchéification de panneaux en matériau synthétique
EP0920899A1 (fr) * 1997-11-25 1999-06-09 Harry George Rhodes Ensemble de filtration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838641A1 (de) * 1988-11-15 1990-05-17 Power Systeme Ges Fuer Tech Ge Stegdoppelplatte od. dgl.
EP0376386A1 (fr) 1988-12-29 1990-07-04 Multifoil B.V. Procédé pour brancher les ouvertures dans la surface d'un matériau plan multicouche synthétique et feuille à cet effet
EP0825309A1 (fr) * 1996-08-22 1998-02-25 Multifoil B.V. Ruban d'étanchéité, panneau en matériau synthétique étanchéifié avec celui-ci et procédé d'étanchéification de panneaux en matériau synthétique
EP0920899A1 (fr) * 1997-11-25 1999-06-09 Harry George Rhodes Ensemble de filtration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3428363A1 (fr) * 2017-07-13 2019-01-16 Multifoil B.V. Materiau en forme de plaque à parois multiples et bande filtrante
NL2019243B1 (nl) * 2017-07-13 2019-01-30 Multifoil Bv Meerwandig plaatmateriaal en filterband

Also Published As

Publication number Publication date
EP2927386B1 (fr) 2017-06-28
NL2012549B1 (nl) 2016-02-15
NL2012549A (nl) 2016-01-12

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