EP0446822B1 - Voile support pour travées de sous-pente de toiture - Google Patents

Voile support pour travées de sous-pente de toiture Download PDF

Info

Publication number
EP0446822B1
EP0446822B1 EP19910103645 EP91103645A EP0446822B1 EP 0446822 B1 EP0446822 B1 EP 0446822B1 EP 19910103645 EP19910103645 EP 19910103645 EP 91103645 A EP91103645 A EP 91103645A EP 0446822 B1 EP0446822 B1 EP 0446822B1
Authority
EP
European Patent Office
Prior art keywords
base felt
spunbonded
filaments
melting point
fusible binder
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
EP19910103645
Other languages
German (de)
English (en)
Other versions
EP0446822A1 (fr
EP0446822B2 (fr
Inventor
Karl-Christian Zerfass
Franz Kaulich
Michael Schöps
Hans Dr. Wagner
Bertrand Claude Weiter
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.)
Johns Manville
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6402119&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0446822(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0446822A1 publication Critical patent/EP0446822A1/fr
Publication of EP0446822B1 publication Critical patent/EP0446822B1/fr
Application granted granted Critical
Publication of EP0446822B2 publication Critical patent/EP0446822B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/153—Mixed yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components
    • 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]
    • Y10T442/681—Spun-bonded nonwoven fabric

Definitions

  • the invention relates to a carrier sheet for roofing membranes and a roofing membrane manufactured with this carrier membrane.
  • roofing membranes are known to be installed under the tiles or slate slabs of steep roofs or the like as protection against flying snow, dust etc.
  • roofing membranes should on the one hand be impermeable to water and on the other hand permeable to air and steam.
  • roofing membranes made of grid-reinforced foils are widespread. Although these films have good tear strength; However, the tear resistance and often also the vapor permeability remain unsatisfactory.
  • a roofing membrane made of a polyurethane film is known, which is covered with a non-woven layer of e.g. Polyester is covered.
  • a non-woven layer of e.g. Polyester is covered.
  • an underlay which consists of highly tear-resistant polyester spunbonded fabric and is provided with a water-repellent and breathable special coating in the form of a paste.
  • EP-PS 0027750 describes a carrier web for a roofing membrane which consists of a nonwoven fabric made of polypropylene, polyethylene, polyester or polyvinyl and has a weight per unit area between 85 and 200 g / m 2 .
  • the nonwoven fabric is provided with a bitumen layer on one side by warmly coating the nonwoven fabric with the bitumen and then cooling it to produce microholes or microcracks.
  • This publication does not reveal anything about the structure of the nonwoven fabric - apart from the fiber material used and the weight per unit area.
  • the invention has for its object to provide a carrier sheet for roofing underlay, which ensures high strength, in particular tear resistance of the roofing underlay and which has good dimensional stability even at high processing temperatures.
  • a carrier web for roofing underlay which consists of a spunbond made of polyester, in particular polyethylene terephthalate filaments
  • this object is achieved in that the spunbonded fabric has a basis weight of 50 to 100 g / m 2 with a single titer of the filaments of 1 to 8 dtex has and is solidified by a melt binder consisting of a polymer with a melting point which is lower than the melting point of the supporting filaments.
  • the carrier web is given good dimensional stability even at high processing temperatures due to the structure of the spunbonded fabric according to the invention. This is important for the production of roofing underlays in which the carrier sheet is provided with bitumen. Processing temperatures of 160 to 180 ° C. prevail in particular when impregnating the carrier web with bitumen. As has been shown, the carrier web designed according to the invention has good dimensional stability even at these high temperatures, which is essential for processing the carrier web. Carrier sheets made of polypropylene, which has a softening point of approx. 156 ° C, are less suitable for bituminization, for example.
  • the carrier web is preferably used in connection with bitumen to produce a roofing underlay.
  • the carrier web is preferably impregnated with bitumen; instead, the carrier web can also be coated with bitumen, it preferably being coated on both sides with bitumen.
  • the carrier web designed in accordance with the invention has a tear resistance of the order of 20 N to 80 N, a nail tear resistance of 50 N to 180 N and a perforation stability of 400 N to 1200 N.
  • bitumen instead of bitumen, another material, e.g. Polyethylene or polyvinyl chloride can be used with the spunbonded fabric according to the invention.
  • the low basis weight of the spunbonded fabric is advantageous in terms of vapor permeability and material consumption.
  • the weight per unit area of the spunbonded fabric is preferably 70 to 90 g / m 2 .
  • the fine individual titer of the spunbonded filaments results in good adhesion of the material associated with the spunbonded nonwoven, in particular the bitumen, due to the high specific surface area of the spunbonded nonwoven.
  • the individual titer of the spunbonded nonwoven filaments is preferably 2 to 5 dtex, in particular 4 dtex.
  • melt binders are polymers whose melting point is lower than the melting point of the filaments which form the spunbonded nonwoven - the so-called supporting filaments.
  • the melting point of the melt binder is expediently 10 ° C., preferably 30 ° C. below the melting point of the supporting filaments.
  • melt binders consist of polyesters, preferably polybutylene terephthalate or modified polyesters with a correspondingly lowered melting point, preferably modified polyethylene terephthalate.
  • the melt binder is preferably introduced in fiber form.
  • the bonding takes place by heat treatment of the fleece, in particular by means of a calender, whereby this smooth or profiled rollers, e.g. Embossing rollers with engraving.
  • the consolidation can be carried out exclusively by the calender or by means of a calender (pre-consolidation) and subsequent further heat treatment, e.g. by means of hot air or radiation energy.
  • the melt binders mentioned above can be used particularly advantageously in the form of binding filaments in the nonwoven during manufacture, i.e. when depositing the filaments on the conveyor belt.
  • the binding filaments melt completely or partially and form the desired binding points (binding sail) at the crossing points of the supporting filaments.
  • the proportion of binder is advantageously 5 to 25% by weight, preferably 10 to 15% by weight.
  • a spunbonded nonwoven made of polyethylene terephthalate filaments with a single titer of 4 dtex and binding filaments made from a modified polyester with a share of 9% was used as the carrier web.
  • the spunbonded web was thermomechanically pre-consolidated by embossing rollers and then finally consolidated by hot air.
  • the basis weight of the carrier was 100 g / m 2.
  • the carrier web was then bituminized in a roofing system, coated on both sides with bitumen and sanded. An excellent dimensional stability during the processing process was noticed.
  • the roofing membrane produced in this way had the following properties:

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Particle Accelerators (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Tents Or Canopies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Claims (11)

1. Bande de support pour des bandes de mise en tension de toit, qui est constituée par une nappe non-tissée formée de filaments de polyester et notamment de téréphtalate de polyéthylène, caractérisée en ce que la nappe non-tissée possède un poids par unité de surface de 50-100 g/m2 pour un titre individuel des filaments de 1 à 8 dtex, et est renforcée par un liant fusible, constitué par un polymère ayant un point de fusion inférieur au point de fusion des filaments porteurs.
2. Bande de support selon la revendication 1, caractérisée en ce que le poids par unité de surface de la nappe non-tissée est compris entre 70 et 90 g/m2.
3. Bande de support selon la revendication 1 ou 2, caractérisée en ce que le titre individuel des filaments de la nappe non-tissée est compris entre 2 et 5 dtex.
4. Bande de support selon la revendication 1, caractérisée en ce que le point de fusion du liant fusible est inférieur de 10°C et de préférence de 30°C au point de fusion des filaments de support.
5. Bande de support selon au moins l'une des revendications 1 à 4, caractérisée en ce que le liant fusible est constitué par des polyesters, de préférence du téréphtalate de polybutylène ou des polyesters modifiés possédant un point de fusion abaissé de façon correspondante, de préférence du téréphtalate de polyéthylène modifié.
6. Bande de support selon l'une des revendications 1 à 5, caractérisée en ce que le liant fusible est présent sous la forme de filaments de liaison.
7. Bande de support selon l'une des revendications précédentes, caractérisée en ce que le pourcentage du liant fusible est compris entre 5 et 25 % en poids.
8. Bande de support selon la revendication 7, caractérisée en ce que le pourcentage du liant fusible est compris entre 10 et 15 % en poids.
9. Bande de mise en tension de toit comportant une bande de support selon au moins l'une des revendications précédentes, caractérisée en ce que la bande de support est imprégnée ou enduite de bitume et notamment est enduite de bitume sur ses deux faces.
10. Procédé pour fabriquer la bande de support selon la revendication 1 par fabrication d'une nappe non-tissée formée de filaments de polyester, d'une manière connue en soi, caractérisé en ce qu'on insère le liant fusible sous la forme de fibres et que l'on consolide la nappe non-tissée au moyen d'un traitement thermique.
11. Procédé selon la revendication 10, caractérisé en ce que le renforcement est obtenu à l'aide d'une calandre (prérenforcement) et au moyen d'un autre traitement thermique ultérieur.
EP19910103645 1990-03-14 1991-03-09 Voile support pour travées de sous-pente de toiture Expired - Lifetime EP0446822B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008043A DE4008043A1 (de) 1990-03-14 1990-03-14 Traegerbahn fuer dachunterspannbahnen
DE4008043 1990-03-14

Publications (3)

Publication Number Publication Date
EP0446822A1 EP0446822A1 (fr) 1991-09-18
EP0446822B1 true EP0446822B1 (fr) 1995-06-07
EP0446822B2 EP0446822B2 (fr) 1999-06-16

Family

ID=6402119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910103645 Expired - Lifetime EP0446822B2 (fr) 1990-03-14 1991-03-09 Voile support pour travées de sous-pente de toiture

Country Status (9)

Country Link
US (1) US5130178A (fr)
EP (1) EP0446822B2 (fr)
JP (1) JP3096311B2 (fr)
AT (1) ATE123538T1 (fr)
DE (2) DE4008043A1 (fr)
DK (1) DK0446822T4 (fr)
GR (1) GR3030982T3 (fr)
IE (1) IE67658B1 (fr)
PT (1) PT97025A (fr)

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US9682512B2 (en) 2009-02-06 2017-06-20 Nike, Inc. Methods of joining textiles and other elements incorporating a thermoplastic polymer material
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EP2486104B1 (fr) 2009-10-08 2018-07-25 Johns Manville Structure textile
EP2309046B1 (fr) 2009-10-08 2017-08-30 Johns Manville Matériaux de tissu multicouche pour applications de toiture
DE102011121136A1 (de) 2011-12-15 2013-06-20 Johns Manville Europe Gmbh Mehrlagiges Filtermedium
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DE102014010332A1 (de) 2014-07-14 2016-01-14 Johns Manville Europe Gmbh Verbundwerkstoffe umfassend Wabenkerne auf Basis von thermoplastischen Synthesefaservliesen
EP3086384B1 (fr) 2015-04-23 2017-10-25 Johns Manville Europe GmbH Poches tubulaires du type bande à cartouche pour batteries du type plomb-acide en une structure plate textile
DE102016015248A1 (de) 2016-12-21 2018-06-21 Johns Manville Europe Gmbh Hocheffizientes Filtermedium
CA3084636C (fr) 2019-06-24 2024-06-18 Owens Corning Intellectual Capital, Llc Doublure inferieure d`une toiture munie d`une fonction amelioree de marchabilite et de traction
CA3084635C (fr) 2019-06-24 2025-04-01 Owens Corning Intellectual Capital, Llc Doublure inférieure d’une toiture munie de noyau non tissé hydrophobe
US20210031129A1 (en) 2019-07-31 2021-02-04 Johns Manville Cleanable filter medium
EP4303353A1 (fr) 2022-07-05 2024-01-10 Johns Manville Matériau non tissé présentant un meilleur rapport md/cd, son procédé de fabrication et son utilisation
US20250154763A1 (en) 2023-11-15 2025-05-15 Johns Manville Nonwoven with new thermoplastic binder
EP4574231A1 (fr) 2023-12-18 2025-06-25 Johns Manville Europe GmbH Matériau filtrant et procédé de fourniture d'un matériau filtrant

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Also Published As

Publication number Publication date
IE910844A1 (en) 1991-09-25
GR3030982T3 (en) 1999-12-31
DE4008043A1 (de) 1991-09-19
IE67658B1 (en) 1996-04-17
JPH04214474A (ja) 1992-08-05
PT97025A (pt) 1993-03-31
EP0446822A1 (fr) 1991-09-18
DK0446822T4 (da) 1999-11-22
US5130178A (en) 1992-07-14
JP3096311B2 (ja) 2000-10-10
ATE123538T1 (de) 1995-06-15
DE59105638D1 (de) 1995-07-13
EP0446822B2 (fr) 1999-06-16
DK0446822T3 (da) 1995-10-16

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