EP3728777B1 - Abstandshalter mit feuchtigkeitsaufnehmender struktur und zugehöriges herstellungsverfahren - Google Patents

Abstandshalter mit feuchtigkeitsaufnehmender struktur und zugehöriges herstellungsverfahren Download PDF

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Publication number
EP3728777B1
EP3728777B1 EP18822385.3A EP18822385A EP3728777B1 EP 3728777 B1 EP3728777 B1 EP 3728777B1 EP 18822385 A EP18822385 A EP 18822385A EP 3728777 B1 EP3728777 B1 EP 3728777B1
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EP
European Patent Office
Prior art keywords
spacer
absorbent unit
absorbent
unit
fixing
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.)
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EP18822385.3A
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English (en)
French (fr)
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EP3728777A1 (de
Inventor
Walter Schreiber
Hans-Werner Kuster
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.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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Priority claimed from FR1762910A external-priority patent/FR3075853B1/fr
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP3728777A1 publication Critical patent/EP3728777A1/de
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Publication of EP3728777B1 publication Critical patent/EP3728777B1/de
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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663Elements for spacing panes
    • E06B3/66309Section members positioned at the edges of the glazing unit
    • E06B3/66361Section members positioned at the edges of the glazing unit with special structural provisions for holding drying agents, e.g. packed in special containers
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663Elements for spacing panes
    • E06B3/66309Section members positioned at the edges of the glazing unit
    • E06B3/66323Section members positioned at the edges of the glazing unit comprising an interruption of the heat flow in a direction perpendicular to the unit
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663Elements for spacing panes
    • E06B3/667Connectors therefor

Definitions

  • This presentation relates to a spacer for insulating glazing and a method of manufacturing a spacer for insulating glazing.
  • insulating glazing can be obtained by joining a rigid spacer frame to the periphery of two sheets of glass.
  • the spacer frame is conventionally manufactured either by successive folding of a straight spacer, or by angular assembly at their ends of straight spacers, so as to obtain, for example, a rectangular frame.
  • the spacer frame delimits an internal cavity between the glass sheets, said cavity forming an insulating layer of air or of a gas that is less conductive of heat than air, for example argon, which makes it possible to limit losses. due to conduction or convection.
  • the spacer frame contains a moisture-absorbing product, also called a desiccant, intended to absorb the moisture present inside the glazing, in particular just after the glazing has been fitted.
  • a moisture-absorbing product also called a desiccant
  • this moisture-absorbing product is typically in the form of a powder, filling the interior space of the spacer.
  • the pulverulent product is introduced into the spacer through orifices drilled for this purpose in the framework and then filled, generally using butyl.
  • the disadvantage of such spacers is that they have a high thermal conductivity linked to the thermal conductivity of the moisture-absorbing product which fills the interior space. The thermal performance of insulating glazing incorporating these spacers is therefore limited.
  • Requirement EP 1 860 270 describes a different type of spacer obtained by extrusion.
  • the spacer here forms a bead intended to be fixed by gluing to the glass sheets of the glazing and comprising a moisture-absorbing core, coextruded with an at least partially moisture-permeable silicone shell.
  • this type of spacer also does not make it possible to obtain insulating glazing units having good thermal performance.
  • Requirement EP 3 184 725 A1 describes an insulating glass spacer.
  • the present presentation aims to provide an insulating glazing and a method of manufacturing such a spacer, making it possible to remedy the aforementioned problems.
  • the subject of the present presentation is thus an insulating glazing spacer extending in a longitudinal direction and comprising a first and a second fixing parts spaced from each other in a lateral direction and intended to be secured each to a sheet of glass of the insulating glazing unit by adhesive fixing means, and at least one transverse part connecting said first and second fixing parts and delimiting with them an interior space, the spacer comprising, in the interior space, a structure absorbing heat wetness formed of at least one absorbent unit attached to one of the first and the second attachment part, the other of the first and the second attachment part not being in contact with the absorbent unit.
  • Structure is understood to mean a “self-supporting” element or set of elements, that is to say that it exists as such, independently of any support or substrate, unlike a coating or a layer. deposited on a substrate.
  • the moisture-absorbing structure of the spacer according to the invention forms a compact element or set of elements, of finite dimensions.
  • each absorbent unit of the moisture-absorbing structure remaining at a distance from at least one of the fastening parts the structure does not influence the thermal conductivity of the spacer.
  • the thermal performance of the spacer is thus improved compared to that of prior art spacers.
  • the absorbent unit is fixed by adhesive means, for example a hot-melt adhesive.
  • the absorbent structure is arranged so that it is not in contact with the transverse part either.
  • the moisture absorbent structure may include a plurality of absorbent units which are preferably spaced apart in the longitudinal direction by gap areas. These interruption zones are preferably at least 2 mm in order to guarantee effective thermal separation.
  • the moisture absorbent structure may comprise an absorbent unit extending continuously in the longitudinal direction.
  • the absorbent unit forms a profile extending in the longitudinal direction.
  • profile is meant an elongated element, typically of constant or substantially constant section, for example rectangular.
  • the absorbent structure extends over at least 50%, preferably at least 80%, of the total length of the spacer, measured in its longitudinal direction.
  • the section of the absorbent unit measured in a plane orthogonal to the longitudinal direction, is between 30 and 300 mm 2
  • the width of the absorbent unit measured in the lateral direction, is between 0.6 and 0.99 times the total width of the spacer.
  • the absorbent unit can also comprise a combination of several absorbent materials chosen from one or both of the aforementioned categories.
  • the absorbent unit comprises a cohesive core formed of particles of at least one moisture-absorbing material, bound by a binder.
  • the binder can be any plastic material permeable to water vapour.
  • the binder preferably does not contain any volatile material.
  • the binder can thus comprise polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polymethylacrylate (PMMA), polycarbonate (PC), polyamide (PA), polyvinylchloride (PVC), polystyrene ( PS) and/or other styrenic polymers, copolymers (for example ABS, SAN, ASA, etc.) or any suitable combination of the aforementioned elements.
  • PP polypropylene
  • PE polyethylene
  • PET polyethylene terephthalate
  • PMMA polymethylacrylate
  • PC polycarbonate
  • PA polyamide
  • PVC polyvinylchloride
  • PS polystyrene
  • other styrenic polymers copolymers (for example ABS, SAN, ASA, etc.) or any suitable combination of the aforementioned elements.
  • the cohesive core of the absorbent unit is surrounded by a closed envelope permeable to water vapour.
  • the envelope prevents particles from becoming detached and polluting the internal cavity of the glazing. It is usually plastic.
  • the absorbent unit comprises a powdery, friable, liquid, or pasty, for example a powder or a silica gel, surrounded by a closed envelope permeable to water vapour.
  • the envelope is generally made of plastic.
  • This presentation also relates to a method of manufacturing a spacer for insulating glazing extending in a longitudinal direction and comprising a first and a second fixing parts spaced from each other in a lateral direction and intended to be secured each to a sheet of glass of the insulating glazing by means of fixing by bonding, and at least one transverse part connecting said first and second fixing parts and delimiting with them an interior space, the method comprising the fixing of at least one unit absorbent forming a moisture absorbing structure, to one of the first and the second fastening part, the other of the first and the second fastening part not being in contact with the absorbent unit.
  • Said absorbent structure is a self-supporting element or set of elements.
  • the absorbent unit is preextruded, then attached to the first or the second attachment part.
  • the preextruded absorbent unit is surrounded by a closed envelope permeable to water vapor before being attached to the first or second attachment part.
  • the absorbent unit can for example be fixed by gluing, for example by means of a hot-melt adhesive.
  • the absorbent unit is extruded directly on the first or the second fastening part.
  • the absorbent unit is fixed to the first or the second fixing part after securing together the first and second fixing parts.
  • the first and the second fixing parts are connected to the transverse part, so as to form the interior space, and then the absorbent unit is fixed to one of the fixing parts of the spacer.
  • the absorbent unit is fixed to the first or the second fixing part before joining together the first and second fixing parts.
  • the absorbent unit is fixed to the first fixing part, then this part is connected to the second fixing part via the transverse part.
  • This presentation finally relates to a method of manufacturing a spacer frame for insulating glazing comprising at least one spacer as defined above or manufactured according to the method defined above.
  • the spacer is folded to form at least two adjacent sides of the frame. It is understood that the folding is carried out around an axis extending in the lateral direction of the spacer.
  • the spacer comprises at least two absorbent units separated, in the longitudinal direction, by an interruption zone, and the spacer is folded at the level of said at least one interruption zone.
  • the moisture-absorbing structure comprises an absorbent unit extending continuously in the longitudinal direction of the spacer, at least a portion of said absorbent unit is removed prior to the folding step, so as to forming an interruption zone, and the spacer is folded at said at least one interruption zone.
  • At least two rectilinear spacers are assembled by mechanical assembly means, for example a connector inserted at a respective end of each spacer, so as to form two adjacent sides of the frame.
  • the at least one absorbent unit forming a moisture-absorbing structure can be fixed to the first or the second fixing part before or after formation of the frame.
  • the figure 1 shows a section of the periphery of an insulating glazing 1, here a double glazing, comprising an outer sheet of glass 2a, intended for example to face the outside of a building, an inner sheet of glass 2b, parallel to the outer sheet of glass 2a, and a spacer frame 3 extending continuously along the edge of the first and the second sheet of glass 2a, 2b, an internal sealed cavity 4 being delimited by the spacer frame between the two sheets of glass 2a, 2b.
  • a double glazing comprising an outer sheet of glass 2a, intended for example to face the outside of a building, an inner sheet of glass 2b, parallel to the outer sheet of glass 2a, and a spacer frame 3 extending continuously along the edge of the first and the second sheet of glass 2a, 2b, an internal sealed cavity 4 being delimited by the spacer frame between the two sheets of glass 2a, 2b.
  • the spacer frame 3 can be manufactured by successive folding of a straight spacer, or by angular assembly at their ends of straight spacers, so as to obtain a typically rectangular frame.
  • the spacer extends, at least in pieces, in a longitudinal direction parallel to an edge of the glazing.
  • the longitudinal direction is represented by the X axis.
  • the spacer 10 of the figure 1 comprises a first and a second fixing parts 12, 14 facing each other in a Y direction called the lateral direction of the spacer 10.
  • These fixing parts 12, 14 are typically made of metal , in particular aluminum or more preferably steel.
  • the first fixing part 12 here with a U-section, defines a first main fixing face 16a intended to be secured to the outer glass sheet 2a, and two returns extending laterally inwards 16b, 16c, on either side and on the other side of the first main fixing face 16a.
  • the second main fixing part 14 also of U-section, defines a first main fixing face 18a intended to be secured to the outer glass sheet 2a, and two returns extending laterally towards the inside 18b, 18c, of either side of the second main fixing face 18a.
  • the attachment to the glass sheets 2a, 2b is done, in a manner known per se, by at least one sealing bead respectively 5a, 5b forming bonding means, for example based on butyl.
  • a transverse direction Z of the spacer is defined as a direction orthogonal to the aforementioned longitudinal X and lateral Y directions.
  • the transverse direction Z is generally parallel to the main fixing faces 14a, 14b of the spacer 10.
  • the upper and lower adjectives used in the following are defined with respect to this transverse direction Z.
  • the upper elements are those oriented towards or closer to the internal cavity 4 of the glazing, in the mounted position of the window. spacer 10.
  • the lower elements are farther from the internal cavity 4 of the glazing, in the mounted position of the spacer 10.
  • the first and the second fastening parts 12, 14 are structurally linked together by a lower transverse part 20 and an upper transverse part 22 extending in the lateral direction Y and respectively forming the lower wall and the upper wall of the spacer 10.
  • each transverse part 20, 22 is glued at each of its lateral ends to a return 16b, 18b, respectively 16b, 18c of one of the fastening parts 12, 14.
  • the transverse parts 20, 22 delimit, with the first and second fixing parts 11, 12, an interior space 30 of the spacer 10.
  • the interior space 30 houses a moisture-absorbing structure 40, by definition self-supporting, formed of one or more absorbent units, each of finite dimensions.
  • the upper transverse part 22 of the spacer 10 is therefore not necessary like this could be the case in spacers of the prior art incorporating absorbent powders filling the interior space.
  • the function of the upper transverse portion 22 here is not to retain the absorbent structure 40. It is essentially aesthetic.
  • the structure 40 comprises an absorbent unit 41 in the form of a profile of rectangular constant section, extending in the longitudinal direction X of the spacer 10.
  • the absorbent unit 41 extends for at least 50%, preferably 80%, of the total length of the spacer, measured in its longitudinal direction X.
  • the section of the absorbent unit 41 measured in a plane orthogonal to the longitudinal direction X, is between 30 and 300 mm 2
  • width l1 measured in the lateral direction Y, is between 0.6 and 0.99 times the total width l of the spacer.
  • the structure 40 is not in contact with the second fixing part 14.
  • the absorbent structure 40 therefore does not form a thermal bridge between the two fixing parts 12, 14 of the spacer 10.
  • the structure 40 being free over a large majority of its periphery, it has a significant capacity for 'absorption.
  • the absorbent unit 41 is formed of a cohesive moisture-absorbing core 42, entirely solid.
  • FIG. 2 it is here formed of particles 44 of a moisture-absorbing material, in particular silica gel, bound by a hardened binder 46, in particular a plastic permeable to water vapour.
  • a moisture-absorbing material in particular silica gel
  • a hardened binder 46 in particular a plastic permeable to water vapour.
  • the absorbent unit 41 is for example obtained by preextrusion of the mixture of particles and binder forming the core 42.
  • the core 42 is fixed, by one of its sides (here a small side), to the first fixing part 12.
  • This fixing can take place by means of an adhesive 50, for example a hot-melt adhesive, as illustrated in the figure 1 .
  • a cohesive core 42 as defined above can be extruded directly onto one of the fixing parts 12, 14, to which it then adheres directly.
  • the spacer can thus have a different framework:
  • the first and second fixing parts can be formed in one piece with the lower transverse part, the spacer then having a main frame in one piece, U or C, plastic or metal, closed or not by an upper transverse part forming a cover.
  • the absorbent structure 40 can also take different forms:
  • the picture 3 thus illustrates another embodiment of a moisture-absorbing structure 140 in which, to prevent the release of particles 144 from the structure 140 into the internal space 4 of the glazing 1, the cohesive core 142 is surrounded by a casing 170, generally made of plastic, with a thickness comprised for example between 0.01 and 0.5 mm, permeable to water vapour.
  • the casing is preferably entirely closed, and covers the entire periphery as well as the longitudinal ends of the core 42.
  • the figure 4 illustrates yet another embodiment of a moisture-absorbing structure 240 having a pulverulent, friable, liquid, or pasty core 242, surrounded by a closed envelope, of thickness for example between 0.01 and 0.5 mm, permeable to water vapor, and usually plastic 270.
  • the absorbent structure 140, 240 is arranged so that it is not in contact with the transverse part.
  • the structure may be formed from a single absorbent unit of the type previously described, for example extending over substantially the entire length of the spacer in its longitudinal direction X.
  • the structure may be formed from a plurality of absorbent units which are preferably spaced in the longitudinal direction X by interruption zones. These interruption zones are preferably at least 2 mm in order to guarantee effective thermal separation.
  • the structure can be fixed to the fixing part 12, 14 either before or after securing the first and second fixing parts 12, 14 of the spacer 10.
  • the figures 5A to 5C thus illustrate a first embodiment of the method for manufacturing a spacer according to the invention, in which the moisture-absorbing structure comprises at least one absorbent unit formed of a cohesive core, deposited by extrusion on a part of spacer attachment.
  • the cohesive core 42 of an absorbent unit 41 is extruded onto the first free attachment part 12, that is to say not yet bonded to the second attachment part 14( figures 5A and 5B ).
  • first and second fixing parts 12, 14 are connected by means of the upper and lower transverse parts 20, 22, the core 42 being imprisoned in the interior space 30.
  • the figures 6A to 6C illustrate a second embodiment of the method for manufacturing a spacer according to the invention.
  • first and second fixing parts 12, 14 are secured together by means of the lower transverse part 20, with which they delimit the interior space 30.
  • the interior space 30 is open at its upper end, the upper transverse part 22 not yet being attached.
  • the cohesive core 42 of an absorbent unit 41 is then extruded directly onto the internal face of the first fastening part 12, through the upper opening of the interior space 30.
  • the upper transverse part 22 is fixed on the returns 16b, 18b of the first and second fixing parts 12, 14, closing the interior space 30 housing the core 42 ( Fig. 6C ).
  • the spacer frame 3 can be manufactured by successive folding of a straight spacer, or by angular assembly at their ends of straight spacers, so as to obtain a typically rectangular frame.
  • a structure 40 generally extends continuously over substantially the entire length of each spacer 10.
  • the spacers (typically four) 10a, 10b, 10c, 10d are then assembled by mechanical assembly means, for example four connectors 11 each inserted into two spacers intended to form two adjacent sides of frame 3.
  • the absorbent structure may comprise at least two absorbent units spaced apart from each other by an intermediate zone coinciding with the bending zone of the spacer.
  • the spacer 10 is generally provided, at each bending zone, with at least one through notch 60, with a constant V-shaped profile, the two facing edges of which form an angle of 90° between them.
  • the spacer advantageously comprises three notches, each intended to form a corner of the spacer frame.
  • the absorbent structure 40 advantageously comprises a plurality of absorbent units 41a, 41b, 41c, 41d spaced apart in the longitudinal direction X of the spacer 10 by interruption zones 43 coinciding with the notches 60.
  • Such an arrangement which emerges from the figure 8 , is particularly easy to obtain when the core 42 is extruded directly onto the fixing part 12.
  • the spacer On assembly, as shown in the figure 9 , the spacer is bent at right angles at each notch, and the two longitudinal ends of the spacer are joined, at the fourth corner, by a connector 11 of known type. Weld lines are finally made, at the junction of the edges of each notch, to restore the sealing of the first and second main fixing parts.
  • the spacer can also be manufactured with a single absorbent unit extending continuously over the entire length or substantially the entire length of the spacer, and at least a portion of said absorbent unit can be removed prior to the folding step, so as to form the interrupt zone or zones.
  • the notches 60 can optionally be cut at the same time as the absorbent unit.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)

Claims (23)

  1. Abstandshalter (10) für Isolierverglasung (1), der sich in einer Längsrichtung (X) erstreckt und einen ersten und einen zweiten Befestigungsteil (12, 14) umfasst, die in einer seitlichen Richtung (Y) voneinander beabstandet sind und dazu bestimmt sind, jeweils mit einer Glasscheibe (2a, 2b) der Isolierverglasung (1) durch Klebebefestigungsmittel (5a, 5b) fest verbunden zu werden, und mindestens einen Querteil (20, 22), der den ersten (12) und den zweiten (14) Befestigungsteil verbindet und mit ihnen einen Innenraum (30) begrenzt, wobei der Abstandhalter (10) in dem Innenraum (30) eine feuchtigkeitsaufnehmende Struktur (40, 140, 240) umfasst, die aus mindestens einer aufnehmenden Einheit (41, 41a, 41b, 41c, 41d; 141; 241) gebildet ist, die an einem von dem ersten und dem zweiten Befestigungsteil (12, 14) befestigt ist, wobei der andere von dem ersten und dem zweiten Befestigungsteil (12, 14) nicht in Kontakt mit der aufnehmenden Einheit (41, 41a, 41b, 41c, 41d; 141; 241) ist, wobei der Abstandshalter dadurch gekennzeichnet ist, dass die aufnehmende Struktur ein selbsttragendes Element oder eine selbsttragende Gruppe von Elementen ist.
  2. Abstandshalter (10) nach Anspruch 1, wobei die aufnehmende Einheit (41) durch Klebemittel (50), zum Beispiel einen Schmelzkleber, befestigt ist.
  3. Abstandshalter (10) nach Anspruch 1 oder 2, wobei die aufnehmende Einheit (41, 41a, 41b, 41c, 41d; 141; 241) ein Profil, insbesondere mit rechteckigem Querschnitt, bildet, das sich in der Längsrichtung (X) erstreckt.
  4. Abstandshalter (10) nach einem der Ansprüche 1 bis 3, wobei der Querschnitt der aufnehmenden Einheit (41, 41a, 41b, 41c, 41d; 141; 241), gemessen in einer Ebene senkrecht zur Längsrichtung (X), zwischen 30 und 300 mm2 beträgt.
  5. Abstandshalter (10) nach einem der Ansprüche 1 bis 4, wobei die Breite (11) der aufnehmenden Einheit (41, 41a, 41b, 41c, 41d; 141; 241), gemessen in der seitlichen Richtung (Y), zwischen dem 0,6- und 0,99-fachen der Gesamtbreite (1) des Abstandshalters (10) beträgt.
  6. Abstandshalter (10) nach einem der Ansprüche 1 bis 5, wobei die aufnehmende Einheit (41, 41a, 41b, 41c, 41d; 141) einen kohäsiven, feuchtigkeitsaufnehmenden Kern (42, 142) umfasst.
  7. Abstandshalter (10) nach Anspruch 6, wobei der kohäsive Kern (42, 142) aus Partikeln (44, 144) aus mindestens einem feuchtigkeitsaufnehmenden Material, zum Beispiel Siliziumdioxid, gebildet ist, die durch ein Bindemittel (46) gebunden sind.
  8. Abstandshalter (10) nach Anspruch 6 oder 7, wobei der kohäsive Kern (142) von einer geschlossenen, wasserdampfdurchlässigen Umhüllung (170) umgeben ist, die zum Beispiel in einem Kunststoffmaterial hergestellt ist.
  9. Abstandshalter (10) nach einem der Ansprüche 1 bis 5, wobei die aufnehmende Einheit (241) einen pulverförmigen, bröckeligen, flüssigen oder pastösen feuchtigkeitsaufnehmenden Kern (242) umfasst, der von einer geschlossenen, wasserdampfdurchlässigen Umhüllung (270) umgeben ist.
  10. Abstandshalter (10) nach einem der Ansprüche 1 bis 9, wobei die feuchtigkeitsaufnehmende Struktur (40) eine Vielzahl von aufnehmenden Einheiten (41a, 41b, 41c, 41d) umfasst, die in der Längsrichtung durch Unterbrechungszonen beabstandet sind.
  11. Abstandshalter (10) nach einem der Ansprüche 1 bis 9, wobei die feuchtigkeitsaufnehmende Struktur (40) eine aufnehmende Einheit (41; 141; 241) umfasst, die sich kontinuierlich in der Längsrichtung erstreckt.
  12. Verfahren zur Herstellung eines Abstandshalters (10) für Isolierverglasung (1), der sich in einer Längsrichtung (X) erstreckt und einen ersten und einen zweiten Befestigungsteil (12, 14) umfasst, die in einer seitlichen Richtung (Y) voneinander beabstandet sind und dazu bestimmt sind, jeweils mit einer Glasscheibe (2a, 2b) der Isolierverglasung (1) durch
    Klebebefestigungsmittel (5a, 5b) fest verbunden zu werden, und mindestens einen Querteil (20, 22), der den ersten und den zweiten Befestigungsteil (12, 14) verbindet und mit ihnen einen Innenraum (30) begrenzt, wobei das Verfahren die Befestigung mindestens einer aufnehmenden Einheit (41, 41a, 41b, 41c, 41d; 141; 241) umfasst, die eine feuchtigkeitsaufnehmende Struktur (40, 140, 240) an einem von dem ersten und dem zweiten Befestigungsteil (12, 14) bildet, wobei das andere von dem ersten und dem zweiten Befestigungsteil (12, 14) nicht in Kontakt mit der absorbierenden Einheit (41, 41a, 41b, 41c, 41d; 141; 241) ist, wobei die aufnehmende Struktur ein selbsttragendes Element oder eine selbsttragende Gruppe von Elementen ist.
  13. Verfahren nach Anspruch 12, wobei die aufnehmende Einheit (41, 141) vorextrudiert wird, dann auf dem ersten oder zweiten Befestigungsteil (12, 14) befestigt wird.
  14. Verfahren nach Anspruch 13, wobei die vorextrudierte aufnehmende Einheit (141) von einer geschlossenen, wasserdampfdurchlässigen Umhüllung umgeben wird, bevor sie auf dem ersten oder zweiten Befestigungsteil befestigt wird.
  15. Verfahren nach einem der Ansprüche 12 bis 14, wobei die aufnehmende Einheit (41, 141, 241) durch Kleben befestigt wird, zum Beispiel mittels eines Schmelzklebers (50).
  16. Verfahren nach Anspruch 12, wobei die aufnehmende Einheit (41) direkt auf den ersten oder zweiten Befestigungsteil (12, 14) extrudiert wird.
  17. Verfahren nach einem der Ansprüche 12 bis 16, wobei die aufnehmende Einheit (41, 41a, 41b, 41c, 41d; 141; 241) an dem ersten oder dem zweiten Befestigungsteil (12, 14) befestigt wird, nachdem der erste und der zweite Befestigungsteil (12, 14) fest miteinander verbunden wurden.
  18. Verfahren nach einem der Ansprüche 12 bis 16, wobei die aufnehmende Einheit (41, 41a, 41b, 41c, 41d; 141 241) an dem ersten oder dem zweiten Befestigungsteil (12, 14) befestigt wird, bevor der erste und der zweite Befestigungsteil (12, 14) fest miteinander verbunden wurden.
  19. Verfahren zur Herstellung eines Abstandshalterrahmens (3) für Isolierverglasung, der mindestens einen Abstandshalter (10) nach einem der Ansprüche 1 bis 11 umfasst.
  20. Verfahren nach Anspruch 19, wobei der Abstandshalter (10) gefaltet wird, um mindestens zwei angrenzende Seiten des Rahmens zu bilden.
  21. Verfahren nach Anspruch 20, wobei der Abstandshalter (10) mindestens zwei aufnehmende Einheiten (41a, 41b, 41c, 41d) aufweist, die in der Längsrichtung (X) durch eine Unterbrechungszone getrennt sind, und der Abstandshalter (10) auf Höhe der mindestens einen Unterbrechungszone gefaltet ist.
  22. Verfahren nach Anspruch 20, wobei die feuchtigkeitsaufnehmende Struktur (40) eine aufnehmende Einheit (41) umfasst, die sich kontinuierlich in der Längsrichtung des Abstandshalters erstreckt, wobei mindestens ein Abschnitt der aufnehmenden Einheit vor dem Schritt des Faltens entfernt wird, sodass eine Unterbrechungszone gebildet wird, und der Abstandshalter (10) auf Höhe der mindestens einen Unterbrechungszone gefaltet ist.
  23. Verfahren nach Anspruch 19, wobei mindestens zwei geradlinige Abstandshalter (10) durch mechanische Zusammenfügungsmittel, zum Beispiel einen Verbinder (11), der in ein jeweiliges Ende jedes Abstandshalters eingesetzt wird, so zusammengefügt werden, dass zwei angrenzende Seiten des Rahmens gebildet werden.
EP18822385.3A 2017-12-22 2018-12-21 Abstandshalter mit feuchtigkeitsaufnehmender struktur und zugehöriges herstellungsverfahren Active EP3728777B1 (de)

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FR1762910A FR3075853B1 (fr) 2017-12-22 2017-12-22 Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant
EP18194244 2018-09-13
PCT/EP2018/086459 WO2019122278A1 (fr) 2017-12-22 2018-12-21 Espaceur avec structure absorbante d'humidite et procede de fabrication correspondant

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EP3728777B1 true EP3728777B1 (de) 2022-07-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1585823A (en) * 1977-05-25 1981-03-11 Bfg Glassgroup Soldered multiple glazing unit
US5873203A (en) * 1997-09-02 1999-02-23 Ppg Industries, Inc. Photoelectrolytically-desiccating multiple-glazed window units
US6212756B1 (en) * 1998-08-14 2001-04-10 Truseal Technologies, Inc. Dispensable non-adhesive desiccated matrix system for insulating glass units
US7827761B2 (en) * 2003-06-23 2010-11-09 Ppg Industries Ohio, Inc. Plastic spacer stock, plastic spacer frame and multi-sheet unit, and method of making same
DE102006024402B4 (de) 2006-05-24 2008-01-03 Peter Lisec Isolierglaseinheit mit einem elastoplastischen Abstandhalterband und Applizzierverfahren für letzteres
US20140113098A1 (en) * 2012-10-22 2014-04-24 Guartdian IGU, LLC Spacer having a desiccant
MX2017003876A (es) 2014-09-25 2017-06-19 Saint Gobain Separador para unidades de acristalamiento aislantes.
EP3184725A1 (de) * 2015-12-23 2017-06-28 VKR Holding A/S Abstandshalter für eine mehrfachverglasungseinheit und eine mehrfachverglasung

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PL3728777T3 (pl) 2022-08-29
DK3728777T3 (da) 2022-08-22
WO2019122278A1 (fr) 2019-06-27

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