EP0109928B1 - Matériau isolant caché - Google Patents

Matériau isolant caché Download PDF

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Publication number
EP0109928B1
EP0109928B1 EP83810476A EP83810476A EP0109928B1 EP 0109928 B1 EP0109928 B1 EP 0109928B1 EP 83810476 A EP83810476 A EP 83810476A EP 83810476 A EP83810476 A EP 83810476A EP 0109928 B1 EP0109928 B1 EP 0109928B1
Authority
EP
European Patent Office
Prior art keywords
water
material according
sheet structure
impregnated
underlay material
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
EP83810476A
Other languages
German (de)
English (en)
Other versions
EP0109928A1 (fr
Inventor
Hans Widler
Marcel Hauser
Patrick M. Lindt
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.)
FORBO-STAMOID AG
Original Assignee
Forbo-Stamoid 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
Application filed by Forbo-Stamoid AG filed Critical Forbo-Stamoid AG
Priority to AT83810476T priority Critical patent/ATE60640T1/de
Publication of EP0109928A1 publication Critical patent/EP0109928A1/fr
Application granted granted Critical
Publication of EP0109928B1 publication Critical patent/EP0109928B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
    • E04D1/36—Devices for sealing the spaces or joints between roof-covering elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
    • E04D12/002—Sheets of flexible material, e.g. roofing tile underlay

Definitions

  • the present invention relates to a beam material which is used primarily for construction purposes, for example under tiled roofs, behind curtain walls, etc., for sealing against rainwater, snow, dust, soot, etc.
  • Finished kraft papers with and without thread reinforcement are also offered as lining material. Although these have a sufficiently high water vapor transmission coefficient k o of up to 26 mglm 2 hPa, they are insufficient in terms of mechanical strength, so that they can easily break or tear during processing. In addition, they are easily flammable.
  • fabrics and nonwovens coated with soft PVC are also used as the underlay material, which, however, have a water vapor transmission coefficient k o of, for example, 0.065 mg / m 2 hPa, so that special, complex ventilation structures are necessary to prevent the formation of condensation.
  • roof sheeting which consists of a nonwoven made of thermoplastic spinnable threads, the nonwoven outer surfaces optionally being heat-sealed to a greater or lesser extent to adjust the breathability. These webs have closed surfaces whose water vapor permeability is insufficient.
  • a roof tarpaulin of a similar type is proposed in DE-U-7.336.983. They also consist of a nonwoven made of synthetic fibers, which is consolidated on at least one side by calendering. The desired water vapor permeability cannot be achieved here either due to the closed surface.
  • a roofing membrane which consists of a fleece or a fabric and a plastic foam layer used for thermal insulation.
  • the foam is either provided with closed pores on the outside or sealed with an additional plastic layer. The desired water vapor permeability cannot be achieved.
  • the present invention was therefore based on the object of creating a beam material which does not have the disadvantages mentioned above.
  • the lining material according to the invention for construction applications which consists of a tear-resistant, water vapor-permeable, watertight and flame-retardant fabric made of synthetic fibers and is optionally water-repellent and / or flame-retardant, is characterized in that the fabric is at least partially impregnated with a self-crosslinking dispersion, and that it has a water vapor transmission coefficient k o of at least 12 mg / m 2 hPa at 23 ° C and a tensile strength of at least 250 N / 5 cm, the combustion class V according to VKF from 1976 has been achieved and it remains sealed for at least 20 hours under a water column of at least 40 mm .
  • Such a material excludes any condensation or condensation, has excellent tear and tear resistance for the stresses that arise, is waterproof and flame-retardant. For easy installation, it is recommended to use the material in sheet form.
  • Nonwoven fabrics are particularly suitable as fabrics, but also fabrics and knitted fabrics.
  • the flat structure preferably as a non-woven fabric, can be selected in such a thickness that additional thermal insulation is achieved.
  • the fabric can be impregnated in a watertight and flame-resistant manner or can be produced from appropriately pretreated fibers. If flame-retardant fibers are used, flame retardant treatment is generally not necessary.
  • a flat structure such as a dense fabric, knitted fabric or nonwoven fabric, e.g. a nonwoven fabric of preferably 1.5 denier fine synthetic, normally or flame-retardant, organic or inorganic fibers, e.g. Polyester or polyacrylic fibers or glass fibers, etc. impregnated with a mixture of flame retardants, water repellents and binders by known methods, e.g. by dipping and squeezing and then drying. However, the mixture can also be applied with a doctor blade or sprayed on under pressure.
  • Particularly suitable flame retardants are organic halogen compounds, such as chlorinated paraffins, polyvinyl chloride and bromine compounds, in a mixture with antimony oxide and aluminum hydroxide. Phosphorus compounds can also be used, especially organic which cannot be washed out.
  • Suitable hydrophobicizing agents are, for example, emulsions which contain paraffins, fat-modified synthetic resins, silicones or fluorocarbons.
  • the nonwoven or the woven or knitted fabric can be provided with a water vapor permeable, compressed foam layer before impregnation.
  • a layer can e.g. by ordering one.
  • Foam compound can be applied in a known manner by the coating process and then compressing the fabric coated on one or both sides.
  • a compatible hydrophobizing agent for example an aqueous fluorocarbon
  • a tangled nonwoven web consisting of polyacrylic fibers with a titer of 1.5 denier, which are needled with the finest needles in such a way that a uniformly dense needle felt of approximately 2 mm thickness and a weight of 150 to 160 g / m 2 is produced in immersed in an impregnation trough in an impregnation liquor and then squeezed between foulard rollers, so that the absorption of the fleece in the impregnation liquor is approximately 290% of the fleece weight.
  • the impregnation liquor has the following composition:
  • the web After squeezing between the foulard rollers, the web is dried in a tenter in the hot air duct, it being important to ensure that the web is tensioned to a minimum.
  • the temperature in the hot air duct rises from 100 ° C at the entrance to 150 to 160 ° C at the exit. In order to achieve good drying, a high level of air circulation and an appropriate air supply and discharge are necessary. In a 13 m long canal you can drive at around 6 m / minute. After leaving the channel, the web is cooled and rolled up.
  • the product obtained in this way which can be produced in almost any color by appropriate selection of the pigment dyes, has good tear and tear propagation strengths of 350 N / 5 cm in the longitudinal direction and 250 N / 5 cm in the transverse direction or 20 N in the longitudinal and 15 N in the transverse direction, has a thickness of 1.5 mm and, after testing by the Association of Cantonal Fire Insurers (VKF), reaches fire class V.
  • the measured water vapor transmission coefficient k o is 23 mg / m 2 h Pa.
  • the product resists two weeks of irrigation in the laboratory without allowing water to pass through. It is also heat, cold and light resistant.
  • a compound of the following composition is first produced by homogeneously mixing with a high-speed stirrer:
  • This mixture is foamed to 200 g / liter by blowing in air using a continuous foam mixer and with a doctor blade on a roller 0.7 mm thick onto a thermally bonded random web of polyethylene terephthalate fibers with a weight of 120 to 130 g / m 3 and a thickness of 0.3 to 0.4 mm, dried in a hot air duct of 13 m length at 70 to 135 ° C and compressed immediately after leaving the heating duct in the warm state with a roller under a pressure of 6 bar.
  • the web speed is 6 m / minute.
  • Example 1 As in Example 1, it is impregnated and dried.
  • the material obtained has similar properties in terms of water vapor permeability, tear resistance and flame resistance to that from Example 1, but an increased water resistance of over 20 hours under a 100 mm water column.
  • a finely needled random-fiber nonwoven web consisting of polyacrylonitrile fibers, as described in Example 1, is coated with a squeegee on a rubber blanket with impregnating compound.
  • the procedure is as follows:
  • the speed of the driven rubber blanket is set so that it transports the fleece so that it is not stretched, which is clearly visible from the fact that the coated fleece "sags" somewhat after the rubber blanket, as a result of which only a very weak longitudinal pull due to its own weight of the fleece is created.
  • the flow behavior of the impregnating composition is set so that it does not penetrate the fleece completely, but only about 2/3 of the thickness, which results in an application amount of approximately 330 g impregnating composition (wet) per m 2 . If this were to penetrate completely through the fleece, the wet fleece would slip on the rubber blanket and would no longer be transported without warping.
  • the fleece coated in this way is guided shortly after the rubber blanket with the least possible longitudinal and transverse tension in a tenter frame and dried in the hot air duct at a rising temperature of 150 to 170 ° C and condensed at 170 ° C for about 50 seconds. Following the heating duct, the still warm material is smoothed with a roller under 6 bar pressure.
  • the back (second side) is then coated in the same way. It is advantageous if the impregnating compound has a slightly lower viscosity than that for the front (first side).
  • the amount of impregnation compound applied is approximately 640 g (wet) per m 2 .
  • the impregnation compounds are prepared as follows:
  • the raw water is first acidified with acetic acid and 100.00 parts by weight of it is stirred with the "Ukaprint K" (dispersant) until a homogeneous solution arose.
  • Alumina hydrate and pigments are homogeneously dispersed in this solution using a high-speed stirrer.
  • 41.8 parts by weight or 221.8 parts by weight for the second side of the acidified raw water are added, then the polyacrylic dispersion, then the decabromodiphenyl oxide / antimony oxide dispersion and finally the fluorocarbon dispersion, premixed with the remaining 20.00 parts by weight of acidified raw water.
  • Adhering to the mode of operation is very important for the stability of the mixture, which should still be stirred well before use.
  • the product obtained according to Example 3 has the following properties: tear resistance in the longitudinal direction 448 N / 5 cm, in the transverse direction 404 N / 5 cm.
  • the tear resistance is 15 N in the longitudinal direction and 17 N in the transverse direction.
  • the measured water vapor transmission coefficient k o is 21 mg / m 2 h Pa.
  • the material is sealed under a water column of 100 mm for over 20 hours. Firing class V according to VKF, even at 200 ° C.
  • An impregnation mixture consisting of flame-retardant and hydrophobizing agents is knife-coated onto a thermally bonded nonwoven web consisting of polyethylene terephthalate fibers, as described in Example 2, with an air knife so that the fleece fibers are completely enclosed by the impregnation mixture.
  • the application quantity is approximately 460 g (wet) per m 2 . It is then dried in the stenter in the hot air duct at a rising temperature of 150 to 180 ° C.
  • a mixture mechanically foamed according to a known method by blowing in air to 300 to 350 g / liter, consisting of aqueous self-crosslinking polyacrylic dispersion of flame retardant and hydrophobic agents, pigments and foam stabilizer in one Spread a thickness of 0.5 to 0.6 mm, corresponding to approx.
  • Second 2.00 parts by weight of "Latekoll AS" (BASF) are homogeneously stirred with 4.00 parts by weight of 50% aqueous ammonium stearate. 10.00 parts by weight of an aqueous, self-crosslinking, medium-hard polyacrylic dispersion are added to this mixture and also homogeneously stirred, then added in sequence and each time homogeneously stirred: after 40.00 parts by weight of the same polyacrylic dispersion, 50.00 parts by weight of an aqueous, self-crosslinking, hard Polyacrylic dispersion, 11.20 parts by weight of a homogeneously dispersed mixture of 5.20 parts by weight of pigment (for example iron oxides) in 6.00 parts by weight of water, 10.00 parts by weight of an aqueous decabromodiphenyl oxide / antimony oxide dispersion, 6.00 parts by weight of aqueous fluorocarbon dispersion. Keep stirring until the components are homogeneously mixed. This mixture should be stirred well again before foaming.
  • the product obtained according to Example 4 has the following properties:

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Sealing Material Composition (AREA)
  • Paper (AREA)
  • Building Environments (AREA)

Claims (7)

1. Sous-couverture souple pour l'usage dans la construction de bâtiments, se composant d'une feuille résistante à la déchirure, perméable à la vapeur d'eau, étanche à l'eau et difficilement combustible, faite de fibres synthétiques, le cas échéant imprégnée hydrofuge et/ou ignifuge, caractérisée par le fait que cette feuille est imprégnée au moins partiellement par une dispersion autoréticulante et qu'elle a un coefficient de perméabilité à la vapeur d'eau ko d'au moins 12 mglm2 h Pa à 23°C et une résistance à la déchirure d'au moins 250 N/5 cm, qu'elle atteint l'indice d'incendie V selon l'AEAI de 1976 et qu'elle reste étanche sous une colonne d'eau d'au moins 40 mm pendant au moins 20 heures.
2. Sous-couverture selon la revendication 1, caractérisé en ce que la feuille se compose d'une toison fibreuse.
3. Sous-couverture selon la revendication 1, caractérisée en ce que la feuille se compose d'un tissu ou d'un tricot.
4. Sous-couverture selon l'une des revendications 1 à 3, caractérisée en ce que l'épaisseur de la feuille est choisie de façon à avoir en plus en effet d'isolant thermique.
5. Sous-couverture selon l'une des revendications 1 à 4, caractérisée en ce que la feuille est imprégnée de façon a être hydrofuge et ignifuge.
6. Sous-couverture selon l'une des revendications 1 à 5, caractérisée en ce que pour améliorer l'étanchéité la feuille est recouverte d'un côté au moins par une mousse perméable à la vapeur d'eau et que l'ensemble du matériau est imprégné pour être hydrofuge et ignifugé.
7. Sous-toiture se composant d'un matériau selon l'une des revendications 1 à 6.
EP83810476A 1982-10-18 1983-10-17 Matériau isolant caché Expired - Lifetime EP0109928B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810476T ATE60640T1 (de) 1982-10-18 1983-10-17 Unterzugsmaterial.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH606282 1982-10-18
CH6062/82 1982-10-18

Publications (2)

Publication Number Publication Date
EP0109928A1 EP0109928A1 (fr) 1984-05-30
EP0109928B1 true EP0109928B1 (fr) 1991-01-30

Family

ID=4303623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810476A Expired - Lifetime EP0109928B1 (fr) 1982-10-18 1983-10-17 Matériau isolant caché

Country Status (3)

Country Link
EP (1) EP0109928B1 (fr)
AT (1) ATE60640T1 (fr)
DE (2) DE3382148D1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124560A1 (de) * 1991-07-24 1993-01-28 Wacker Chemie Gmbh Beschichtungsmittel zur herstellung von wasserdichten, dampfdurchlaessigen und flammverzoegernden beschichtungen
JPH08218567A (ja) * 1995-02-17 1996-08-27 Japan Gore Tex Inc コンクリート防水処理用透湿性複合シート
AT401941B (de) * 1995-04-27 1996-12-27 Chemiefaser Lenzing Ag Dachunterspannbahn
NL1001978C2 (nl) 1995-12-22 1997-06-24 Dsm Nv Bouwfolie.
DE29606763U1 (de) 1996-04-13 1996-06-27 Christian Heinrich Sandler GmbH & Co KG, 95126 Schwarzenbach a d Saale Schalungsbahn, insbesondere für den Steildachbereich
DE20018453U1 (de) * 2000-10-27 2001-01-18 Wirz Peter Streifenförmige Materialbahn für eine First- und/oder Gratabdeckung
DE10157286C1 (de) * 2001-11-22 2003-05-08 Lafarge Roofing Components Material für die Herstellung von Verbindungen zwischen einem Dachstein und einem Firststein
DE102008033891A1 (de) 2008-07-18 2010-02-04 Ipt Gmbh & Co. Kg Grundmaterial mit mehrschichtig, wenigstens einseitig aufgebrachter, wässriger, mit Füll- und Zuschlagstoffen versehener, lösemittelfreier Beschichtung auf Acrylatbasis, deren Zusammensetzung/en, Herstellung und Verwendung
WO2016178057A1 (fr) * 2015-05-04 2016-11-10 Pratrivero S.P.A. Procédé de fabrication d'un tissu multicouche ignifuge et/ou étanche à l'eau, et tissu multicouche ignifuge et/ou étanche à l'eau

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7336983U (de) * 1974-01-17 Freudenberg C Dachunterspannplane
DE1945686A1 (de) * 1969-09-10 1971-03-18 Metallgesellschaft Ag Dachunterspannbahn
DE7814466U1 (de) * 1978-05-12 1978-08-31 Bemberg Folien Gmbh, 5600 Wuppertal Dachunterspannbahn

Also Published As

Publication number Publication date
EP0109928A1 (fr) 1984-05-30
ATE60640T1 (de) 1991-02-15
DE3382148D1 (de) 1991-03-07
DE8329925U1 (de) 1984-04-19

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