EP0242524B1 - Genadelter Schichtstoff - Google Patents

Genadelter Schichtstoff Download PDF

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Publication number
EP0242524B1
EP0242524B1 EP87102221A EP87102221A EP0242524B1 EP 0242524 B1 EP0242524 B1 EP 0242524B1 EP 87102221 A EP87102221 A EP 87102221A EP 87102221 A EP87102221 A EP 87102221A EP 0242524 B1 EP0242524 B1 EP 0242524B1
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EP
European Patent Office
Prior art keywords
laminate
fiber web
web
preconsolidated
mineral
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.)
Expired - Lifetime
Application number
EP87102221A
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English (en)
French (fr)
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EP0242524A3 (en
EP0242524A2 (de
Inventor
Wolfgang Greiser
Kurt Plötz
Hans Dr. Wagner
Karl-Christian Zerfass
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Johns Manville
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Hoechst AG
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Priority claimed from DE19863605830 external-priority patent/DE3605830A1/de
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0242524A2 publication Critical patent/EP0242524A2/de
Publication of EP0242524A3 publication Critical patent/EP0242524A3/de
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/12—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/04—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by applying or incorporating chemical or thermo-activatable bonding agents in solid or liquid form
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31815—Of bituminous or tarry residue
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/643—Including parallel strand or fiber material within the nonwoven fabric
    • Y10T442/644—Parallel strand or fiber material is glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/682—Needled nonwoven fabric
    • Y10T442/684—Containing at least two chemically different strand or fiber materials
    • Y10T442/686—Containing polymeric and natural strand or fiber materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]

Definitions

  • the present invention relates to an improvement of the laminate according to the earlier European patent application publication no. 0176847, which consists of a pre-consolidated synthetic fiber fleece and a pre-consolidated mineral fiber fleece, which are connected by needling, and which is used as a carrier web for the production of roofing and sealing membranes.
  • Laminates according to the European patent application publication no. 0176847 and the bitumen membranes made from it show good thermomechanical properties and significantly improved fire behavior.
  • the small values of the dimensional change of 0.2 to 0.5% even allow the bitumen sheets to be laid on the roof in one layer.
  • the present invention has for its object, while maintaining all the advantages of the laminate according to the European patent application publication no. 0176847 to further improve the dimensional stability, especially in the transverse direction, in order to obtain even more security when used as a carrier sheet for single-layer roofing sheets.
  • Glass fiber fleeces with reinforcing yarns made of glass are particularly useful.
  • the aim is to combine a steep starting module of the glass yarns, which is important for processing into bitumen sheets, with the subsequent flatter K-D course of the polyester in such a way that the transition in the K-D course is as constant as possible.
  • the family of longitudinal, parallel reinforcement yarns made of glass improves the thermomechanical properties of the laminate in the longitudinal direction. Surprisingly, however, the improvement in dimensional stability in the transverse direction is significantly more pronounced than in the longitudinal direction. There are improvements in cross-dimensional stability by a factor of 15 to 30, in particular 19 to 30.
  • the laminate according to the invention is excellent as a carrier sheet for roofing and sealing sheets, and also for the production of special sheets such as Roll lamination sheets, cold self-adhesive sheets, shingles suitable.
  • Installed roofing membranes can reach temperatures of 70 to 80 ° C under certain conditions (calm, intense and long sun exposure).
  • the dimensional change at 80 ° C should characterize the behavior of the roofing membrane under the temperature fluctuations on the roof. It is determined as follows: In a piece of roofing membrane (approx. 30 cm x 30 cm), two measuring sections of 25 cm in longitudinal and transverse directions are recorded. The test specimens are then placed in a heating cabinet for 1 hour, the temperature of which is kept exactly at 80 ° C ( ⁇ 1 ° C). After the heat treatment, the still soft roof membrane test specimen is carefully removed from the heating cabinet together with the base, a close-knit V2A wire mesh. The test specimen is slowly raised at two corners at the same time and then placed on a paper web, for example crepe paper, so that there is no hindrance to a possible contraction during cooling.
  • a paper web for example crepe paper
  • the distances between the markings are determined and the changes - based on the starting distances - are given in percent.
  • This measurement specification was developed based on SIA standard 281 and the UEAtc guideline for roof sealing systems. It was also used in the following examples to determine the dimensional change.
  • the laminate according to the invention is also suitable as a carrier sheet for coatings of bitumen modified with elastomers or plastomers, for sealing sheets in road and bridge construction and similar applications.
  • a comparison of the changes in transverse dimensions in the laminates of Examples A and B with the changes in transverse dimensions of the laminates of Example C according to the invention shows the surprising improvement in the transverse dimension stability by a factor of 19.

Description

  • Die vorliegende Erfindung betrifft eine Verbesserung des Schichtstoffs nach der früheren Europäischen Patentanmeldung Veröffentlichungs-Nr. 0176847, der aus einem vorverfestigten Synthesefaservlies und einem vorverfestigten Mineralfaservlies, die durch Vernadeln miteinander verbunden sind, besteht, und der als Trägerbahn für die Herstellung von Dach- und Dichtungsbahnen eingesetzt wird.
  • Schichtstoffe nach der Europäischen Patentanmeldung Veröffentlichungs-Nr. 0176847 und die daraus hergestellten Bitumen-Bahnen zeigen gute thermomechanische Eigenschaften und ein deutlich verbessertes Brandverhalten. Die geringen Werte der Dimensionsänderung von 0,2 bis 0,5 % erlauben sogar ein einlagiges Verlegen der Bitumen-Bahnen auf dem Dach.
  • Die vorliegende Erfindung hat nun zur Aufgabe, unter Wahrung aller Vorteile des Schichtstoffes nach der Europäischen Patentanmeldung Veröffentlichungs-Nr. 0176847, die Dimensionsstabilität nochmals zu verbessern, speziell auch in Querrichtung, um noch mehr Sicherheit bei seinem Einsatz als Trägerbahn für einlagige Dachbahnen zu erhalten.
  • Überraschenderweise erreicht man eine deutliche Verbesserung der Dimensionsstabilität in Querrichtung durch die Verwendung eines vorverfestigten Mineralfaservlieses, das in Längsrichtung mineralische Verstärkungsgarne enthält.
  • Besonders bewähren sich Glasfaservliese mit Verstärkungsgarnen aus Glas.
  • Einzel- und Gesamttiter dieser Verstärkungsgarne werden der jeweiligen Aufgabenstellung angepaßt, ebenso der Abstand der längslaufenden Verstärkungsgarne.
  • Im üblichen und bevorzugten Anwendungsbereich, wie ihn auch die Europäischen Patentanmeldung Veröffentlichungs-Nr. 0176847 beschreibt, d.h., bei Flächengewichten des Polymervliesstoffes von 50 bis 350 g/m² und 10 bis 100 g/m² für das Glasfaservlies, bewähren sich Abstände der Glasgarne von 5 bis 25 mm bei einem Titer von 500 bis 2500, vorzugsweise 1100 dtex. Die Abstände der Glasgarne müssen dabei nicht exakt eingehalten werden.
  • Durch die Wahl der Filamenttiter und des Abstands der Verstärkungsgarne kann man den Kraft-Dehnungs-Verlaufe der Schichtstoffe bestimmen. Ziel ist dabei, einen für die Verarbeitung zu Bitumen-Bahnen wichtigen steilen Anfangsmodul der Glasgarne mit dem anschließenden flacheren K-D-Verlauf des Polyesters so zu kombinieren, daß ein möglichst stetiger Übergang im K-D-Verlauf erreicht wird.
  • Die Schar der längslaufenden, parallelen Verstärkungsgarne aus Glas verbessert erwartungsgemäß die thermomechanischen Eigenschaften des Schichtstoffs in Längsrichtung. Überraschenderweise ist aber die Verbesserung der Dimensionsstabilität in Querrichtung deutlich ausgeprägter als in Längsrichtung. Es ergeben sich Verbesserungen der Querdimensionsstabilität um den Faktor 15 bis 30, insbesondere 19 bis 30.
  • Besonders bevorzugte Ausführungsformen der vorliegenden Erfindung sind gekennzeichnet durch die in den Patentansprüchen 2 bis 6 angegebenen Merkmale.
  • Der erfindungsgemäße Schichtstoff ist hervorragend als Trägerbahn für Dach- und Dichtungsbahnen, ferner auch zur Herstellung von Sonderbahnen wie z.B. Rollkaschierbahnen, Kaltselbstklebebahnen, Schindeln geeignet.
  • Verlegte Dachbahnen können unter bestimmten Bedingungen (Windstille, intensive und lange Sonneneinstrahlung) Temperaturen von 70 bis 80°C erreichen.
  • Die Dimensionsänderung bei 80°C soll das Verhalten der Dachbahn unter den Temperaturschwankungen auf dem Dach charakterisieren. Sie wird wie folgt ermittelt:
    In einem Dachbahnenstück (ca. 30 cm x 30 cm) werden zwei Meßstrecken von 25 cm in Längs- und Querrichtung aufgezeichnet. Dann werden die Prüflinge 1 Stunde lang in einen Wärmeschrank eingelegt, dessen Temperatur genau auf 80°C (± 1°C) gehalten wird. Nach der Wärmebehandlung wird der noch weiche Dachbahnenprüfling vorsichtig zusammen mit der Unterlage, einem engmaschigen V2A-Drahtgitter, aus dem Wärmeschrank entnommen. Der Prüfling wird an zwei Ecken gleichzeitig langsam angehoben, und dann auf einer Papierbahn, z.B. Kreppapier, abgelegt, damit bei der Abkühlung keine Behinderung einer möglichen Kontraktion auftritt.
  • Nach 1 Stunde Abkühlzeit werden die Abstände der Markierungen ermittelt und die Veränderungen - bezogen auf die Ausgangsabstände - in Prozenten angegeben.
  • Diese Meßvorschrift wurde in Anlehnung an die SIA-Norm 281 bzw. die UEAtc-Richtlinie Dachabdichtungssysteme entwickelt. Sie wurde auch bei den folgenden Beispielen zur Ermittlung der Dimensionsänderung angewandt.
  • Die folgenden Beispiele zeigen die Vorteile des erfindungsgemäßen Schichtstoffs als Trägerbahn für Bitumen-Bahnen. Der erfindungsgemäße Schichtstoff eignet sich aber auch als Trägerbahn für Beschichtungen von mit Elastomeren oder Plastomeren modifiziertem Bitumen, für Dichtungsbahnen im Straßen- und Brückenbau und ähnliche Anwendungen.
    • Beispiele
    • A) Ein Schichtstoff wird nach dem Stand der Tecknik hergestellt aus einem Polyestervlies mit einem Flächengewicht von 250 g/m², das durch Nadelung verfestigt wurde, und einem nicht vernadelten Glasfaservlies mit einem Flächengewicht von 50 g/m². Die Dimensionsänderung längs/quer, gemessen nach dem oben beschriebenen Verfahren, beträgt -0,45/+0,32 %.
    • B) Ein Schichtstoff wird nach der Europäischen Patentanmeldung Veröffentlichungs-Nr. 0176847 hergestellt, indem man ein Polyestervlies mit einem Flächengewicht von 160 g/m² durch Nadelung mit geringer Stichzahl vorverfestigt und mit einem ebenfalls vorverfestigten Glasfaservlies mit einem Flächengewicht von 60 g/m², das keine Fadenverstärkung aufweist, vernadelt und mit einem üblichen Binder endverfestigt. Die Dimensionsänderung längs/quer, gemessen nach dem oben beschriebenen Verfahren, beträgt -0,44/+0,19 %.
    • c) Ein erfindungsgemäßer Schichtstoff wird hergestellt, indem man ein Polyestervlies mit einem Flächengewicht von 280 g/m² durch Nadeln mit geringer Stichzahl vorverfestigt und mit einem gleichfalls vorverfestigten Glasvlies mit einem Flächengewicht von 50 g/m², das 0,6 Fäden/cm eines Verstärkungsgarns eines Titers von 550 dtex aufweist, vernadelt und mit einem üblichen Binder endverfestigt. Die Dimensionsänderung längs/quer, gemessen anch dem oben beschriebenen Verfahren, beträgt -0,26/+0,01 %.
  • Ein Vergleich der Querdimensionsänderungen bei den Schichtstoffen der Beispiele A und B mit der Querdimensionsänderung der erfindungsgemäßen Schichtstoffs des Beispiels C zeigt die überraschende Verbesserung der Querdimensionsstabilität um den Faktor 19.

Claims (7)

  1. Schichtstoff aus einem vorverfestigten Synthesefaservlies und einem vorverfestigten Mineralfaservlies, die durch Vernadelung miteinander verbunden sind, wobei das Mineralfaservlies längslaufende Verstärkungsgarne aus einem mineralischen Werkstoff enthält.
  2. Schichtstoff nach Anspruch 1, dadurch gekennzeichnet, daß das Synthesefaservlies aus Polethylenterephthalat-Fasern besteht.
  3. Schichtstoff nach mindestens einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das Synthesefaservlies ein Filamentvliesstoff ist, der durch an sich bekannte Verfahren vorverfestigt ist.
  4. Schichtstoff nach Anspruch 3, dadurch gekennzeichnet, daß das Flächengewicht des Filamentvliesstoffs 50 bis 350 g/m², bei einem Einzeltiter von 3 bis 8 dtex, beträgt.
  5. Schichtstoff nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Mineralfaservlies ein naß gelegtes Stapelfaservlies ist.
  6. Schichtstoff nach mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Mineralfaservlies ein Flächengewicht zwischen 30 und 60 g/m² aufweist.
  7. Verwendung des Schichtstofs des Anspruchs 1 als Trägerbahn für Dach- und Dichtungsbahnen.
EP87102221A 1986-02-22 1987-02-17 Genadelter Schichtstoff Expired - Lifetime EP0242524B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863605830 DE3605830A1 (de) 1984-09-28 1986-02-22 Schichtstoff
DE3605830 1986-02-22

Publications (3)

Publication Number Publication Date
EP0242524A2 EP0242524A2 (de) 1987-10-28
EP0242524A3 EP0242524A3 (en) 1989-10-18
EP0242524B1 true EP0242524B1 (de) 1993-09-22

Family

ID=6294779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102221A Expired - Lifetime EP0242524B1 (de) 1986-02-22 1987-02-17 Genadelter Schichtstoff

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Country Link
US (1) US4755423A (de)
EP (1) EP0242524B1 (de)
JP (1) JP2609242B2 (de)
AT (1) ATE94922T1 (de)
AU (1) AU6911287A (de)
CA (1) CA1275901C (de)
FI (1) FI89189C (de)
NO (1) NO169397C (de)
ZA (1) ZA871245B (de)

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DE19935531A1 (de) * 1999-07-30 2001-02-08 Johns Manville Int Inc Zweilagenschichtstoff
DE19952432A1 (de) * 1999-10-30 2001-06-21 Johns Manville Int Inc Schichtstoff
DE10151411B4 (de) * 2001-10-18 2006-09-14 Johns Manville Europe Gmbh Schichtstoff mit verbesserten Eigenschaften

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DE3435643A1 (de) * 1984-09-28 1986-04-10 Hoechst Ag, 6230 Frankfurt Schichtstoff
FR2611752B1 (fr) * 1987-03-02 1989-05-05 Cofpa Procede de fabrication de feutres humides et machine de densification des nappes
DE3741669A1 (de) * 1987-12-09 1989-06-22 Basf Ag Faserverstaerktes, thermoplastisches halbzeug
DE3831271A1 (de) * 1988-09-14 1990-03-15 Hoechst Ag Traegerbahn fuer dachunterspannbahnen
US4964891A (en) * 1988-11-13 1990-10-23 Ppg Industries, Inc. Programmably controlled fiber glass strand feeders and improved methods for making glass fiber mats
FR2640288B1 (fr) * 1988-12-13 1993-06-18 Rhone Poulenc Fibres Support a base de nappe non tissee en textile chimique et son procede de fabrication
DE3901152A1 (de) * 1989-01-17 1990-07-19 Hoechst Ag Flammfeste traegerbahn fuer bitumenbahnen und verfahren zu ihrer herstellung
FR2648482B1 (fr) * 1989-06-16 1992-05-15 Chomarat & Cie Complexes textiles multicouches a base de nappes fibreuses ayant des caracteristiques differentes et procede pour leur obtention
DE4008043A1 (de) * 1990-03-14 1991-09-19 Hoechst Ag Traegerbahn fuer dachunterspannbahnen
US5314556A (en) * 1990-05-08 1994-05-24 Bay Mills Limited Process for manufacturing reinforced roofing membranes
DE9207367U1 (de) 1992-05-30 1992-09-10 Hoechst Ag, 6230 Frankfurt, De
US5290522A (en) * 1993-01-07 1994-03-01 Minnesota Mining And Manufacturing Company Catalytic converter mounting mat
EP0678128B1 (de) * 1993-01-07 1996-09-25 Minnesota Mining And Manufacturing Company Biegsamer fliesstoff
FR2715957B1 (fr) * 1994-02-10 1996-05-03 Freudenberg Spunweb Sa Procédé de fabrication d'une armature bicouche textile destinée à la réalisation de chapes d'étanchéité bitumineuses pour toiture et armature ainsi obtenue.
US5474838A (en) * 1994-02-22 1995-12-12 Milliken Research Corporation Roofing membrane comprising fiberglass scrim stitched to a polyester mat
DE19618775A1 (de) † 1996-05-10 1997-11-13 Hoechst Trevira Gmbh & Co Kg Trägereinlage, Verfahren zu deren Herstellung und deren Verwendung
EP1046742A1 (de) * 1999-04-23 2000-10-25 Wattex Trägerbahn für Bitumenbahnen
US7351673B1 (en) * 1999-07-30 2008-04-01 Johns Manville Laminates including two or more layers of organic synthetic filament non-wovens and glass fiber webs and scrims
IL166089A0 (en) * 2002-07-20 2006-01-15 Idalex Technologies Inc Evaporative duplex counterheat exchanger
EP1447213A1 (de) * 2003-02-11 2004-08-18 Saint-Gobain Vetrotex France S.A. Struktur enthaltend einen trockengelegten Vliesstoff aus Glasfasern und einen Vliesstoff aus organischen Fasern
US10982441B2 (en) 2018-03-09 2021-04-20 Tamko Building Products, Llc Multiple layer substrate for roofing materials

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US3125404A (en) * 1964-03-17 Tensile strength
NL189176B (nl) * 1956-07-13 1900-01-01 Hisamitsu Pharmaceutical Co Pleister op basis van een synthetische rubber.
GB1488649A (en) * 1973-10-30 1977-10-12 Ici Ltd Needled fibrous structure
GB1577561A (en) * 1976-04-29 1980-10-29 Cons Fiberglass Prod Fibreglass mat
JPS58983B2 (ja) * 1978-07-24 1983-01-08 三井化学株式会社 アスフアルト防水用基材
FR2514695B1 (fr) * 1981-10-20 1986-01-03 Aerospatiale Demi-produit a base de fibres preimpregnees de resine polymerisable
US4522876A (en) * 1984-07-05 1985-06-11 Lydall, Inc. Integral textile composite fabric
DE3435643A1 (de) * 1984-09-28 1986-04-10 Hoechst Ag, 6230 Frankfurt Schichtstoff

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19935531A1 (de) * 1999-07-30 2001-02-08 Johns Manville Int Inc Zweilagenschichtstoff
DE19935531C2 (de) * 1999-07-30 2001-11-29 Johns Manville Int Inc Zweilagenschichtstoff
DE19952432A1 (de) * 1999-10-30 2001-06-21 Johns Manville Int Inc Schichtstoff
DE19952432B4 (de) * 1999-10-30 2004-10-07 Johns Manville International, Inc., Denver Schichtstoff
DE10151411B4 (de) * 2001-10-18 2006-09-14 Johns Manville Europe Gmbh Schichtstoff mit verbesserten Eigenschaften

Also Published As

Publication number Publication date
CA1275901C (en) 1990-11-06
NO870683L (no) 1987-08-24
US4755423A (en) 1988-07-05
FI870512A0 (fi) 1987-02-09
ATE94922T1 (de) 1993-10-15
JPS62199861A (ja) 1987-09-03
AU6911287A (en) 1987-08-27
JP2609242B2 (ja) 1997-05-14
EP0242524A3 (en) 1989-10-18
NO169397C (no) 1992-06-17
FI89189B (fi) 1993-05-14
FI89189C (fi) 1994-07-12
NO169397B (no) 1992-03-09
FI870512A (fi) 1987-08-23
NO870683D0 (no) 1987-02-20
ZA871245B (en) 1987-08-12
EP0242524A2 (de) 1987-10-28

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