EP0263248B1 - Bituminous roofing membrane - Google Patents

Bituminous roofing membrane Download PDF

Info

Publication number
EP0263248B1
EP0263248B1 EP87110339A EP87110339A EP0263248B1 EP 0263248 B1 EP0263248 B1 EP 0263248B1 EP 87110339 A EP87110339 A EP 87110339A EP 87110339 A EP87110339 A EP 87110339A EP 0263248 B1 EP0263248 B1 EP 0263248B1
Authority
EP
European Patent Office
Prior art keywords
bitumen
roofing sheet
bituminous
roofing
sheet according
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
Application number
EP87110339A
Other languages
German (de)
French (fr)
Other versions
EP0263248A1 (en
Inventor
Karl Dr. Rühl
Ernst Scherp
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.)
Ruetgers Germany GmbH
Original Assignee
Ruetgerswerke 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 Ruetgerswerke AG filed Critical Ruetgerswerke AG
Priority to AT87110339T priority Critical patent/ATE48870T1/en
Publication of EP0263248A1 publication Critical patent/EP0263248A1/en
Application granted granted Critical
Publication of EP0263248B1 publication Critical patent/EP0263248B1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y10T428/2817—Heat sealable
    • Y10T428/2826—Synthetic resin or polymer
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers
    • 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]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31641—Next to natural rubber, gum, oil, rosin, wax, 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
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2369—Coating or impregnation improves elasticity, bendability, resiliency, flexibility, or shape retention of the fabric
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2738—Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith

Definitions

  • the invention relates to a bituminous roofing membrane modified with polymers.
  • Bituminous trays for roof waterproofing consist of a carrier material, such as foils, nonwovens or fabric, which may be impregnated with bitumen and which is coated on at least one side with a bituminous covering compound.
  • the surface of the covering compound is provided with a release agent that prevents the web from sticking when rolled up and, if necessary, can also perform other functions, such as protection against UV rays in the top layer of the roof waterproofing.
  • bituminous coverings are modified with bitumen-compatible polymers. They increase the plasticity range and the viscosity of the melt.
  • the addition of rubber and rubber-like polymers not only increases the softening point, but also improves the flexibility at low temperatures.
  • the elasticity of the bituminous mass is increased.
  • the lower aging resistance of these double bond-containing polymers, in particular against UV radiation, is a drawback.
  • the addition of polyolefins such as polyethylene has a more favorable effect on aging behavior, but an improvement in cold flexibility is generally not achieved and the elasticity is only slightly improved.
  • the range of plasticity of polymer bitumen, which has been modified with elastomers, is between 125 and -35 ° C and for olefin-modified ones between 150 and -15 ° C.
  • the range of plasticity is roughly the same, but shifted by about 25 K. This is just as important for the selection of a roof sealing membrane as the adhesive and welding behavior or the resistance to chemicals and aging.
  • a roofing membrane which consists of a carrier material which is coated on at least one side with a covering material made of polymer bitumen and optionally impregnated with bitumen materials, the covering material comprising a bitumen / rubber mixture in the ratio of bitumen to rubber between 17/3 and 19 1 contains and has been radiation cross-linked after manufacture of the web.
  • the backing material is coated on both sides with the crosslinkable covering compound.
  • the surfaces can be sprinkled with mineral release agents or laminated with foils, as is usual with roofing membranes depending on the intended use.
  • Bituminous hotmelt or cold adhesive layers can also be applied before or after the irradiation. However, it is also possible to coat the underside of the carrier material directly with the bituminous adhesive. Welding tracks of this type are known from DE-OS 30 42 943, but their upper cover layer consists of a vulcanized rubber mixture with a low bitumen content.
  • a polyester fiber fleece (230 g / m 2 ) is impregnated in a conventional plant for the production of bituminous roofing membranes with a mixture of 90 parts by weight of distilled bitumen B 200 and 10 parts by weight of styrene-butadiene rubber and on both sides with a mixture of 63 Parts by weight of distilled bitumen B 200, 7 parts by weight of styrene-butadiene rubber and 30 parts by weight of slate powder coated with a grain ⁇ 100 gm in a thickness of 1 mm each.
  • the upper side is sprinkled with slate chippings (grit ⁇ ottp "1.5 mm) and the underside with fine sand.
  • the web passes through an electron accelerator and is irradiated with a radiation dose of 16.104 Gy.
  • a radiation dose of 16.104 Gy One of each of the irradiated and the non-irradiated material was Sampled and examined, the results are in the Table 1 compared.
  • the plasticity range (temperature range between the cold resistance of the web according to DIN 52123 and the softening point (RuK) of the covering compound according to DIN 52011) has been expanded by irradiation in both directions and has increased by 70 K.
  • the softening point is above the usual olefin-modified masses.
  • Example 1 is repeated, the proportion of the styrene-butadiene rubber in the impregnating and the covering composition being replaced by the same amount of polybutadiene.
  • the results are compared in Table 2.
  • the plasticity range has increased by 161 K and in both directions exceeds the plasticity range of the irradiated web according to Example 1.
  • roofing sheets according to the invention according to Examples 1 and 2 are outstandingly suitable for bonding with a hot bitumen or a bituminous cold adhesive.
  • a cold self-adhesive roofing membrane is made from a polyester fiber fleece (230 g / m2) impregnated with a blown bitumen 85/40, which has a 1 mm thick covering compound according to Example 1 on the top and a 1 mm thickness on the underside 65 parts by weight of distilled bitumen B 200, 11 parts by weight of synthetic rubber, 8 parts by weight of rosin and 3 parts by weight of an extender.
  • the top is then sprinkled as in Example 1 and the bottom covered with siliconized paper.
  • the track is 8. 10 4 Gy, as described in Example 1, irradiated.
  • the adhesive strength of the underside of the web does not decrease. The cold glue therefore remains unchanged during the irradiation.
  • a welding track is produced from a glass fiber fleece (100 g / m 2 ), which is impregnated as in Example 2 and coated on the top.
  • the underside is covered with a 1 mm thick layer of blown bitumen 100/30.
  • the top is then sprinkled with slate chippings and the bottom is talcized.
  • the 6th 10 4 Gy irradiated web can be welded onto all common substrates like an untreated welding web, so hot-melt adhesive is not changed by the irradiation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Body Structure For Vehicles (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Cultivation Of Seaweed (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Paints Or Removers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Inorganic Insulating Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

A roofing strip with a very wide range of plasticity and based on elastomer-modified bitumen is prepared by covering a support with a bitumen/rubber mixture in the ratio of 17/3-19/1 and irradiating the strip at a rate between 6 and 16x104 Gy.

Description

Die Erfindung betrifft eine mit Polymeren modifizierte bituminöse Dachbahn.The invention relates to a bituminous roofing membrane modified with polymers.

Bituminöse Behnen für die Dachabdichtung bestehen aus einem gegebenenfalls mit Bitumen imprägnierten Trägermaterial wie Folien, Vliese oder Gewebe, das mindestens auf einer Seite mit einer bituminösen Deckmasse beschichtet ist. Die Oberfläche der Deckmasse ist mit einem Trennmittel versehen, das ein Verkleben der Bahn beim Aufrollen verhindert und gegebenenfalls noch weitere Funktionen erfüllen kann, wie beispielsweise den Schutz gegen UV-Strahlen bei der obersten Lage der Dachabdichtung.Bituminous trays for roof waterproofing consist of a carrier material, such as foils, nonwovens or fabric, which may be impregnated with bitumen and which is coated on at least one side with a bituminous covering compound. The surface of the covering compound is provided with a release agent that prevents the web from sticking when rolled up and, if necessary, can also perform other functions, such as protection against UV rays in the top layer of the roof waterproofing.

Zur Verbesserung der mechanischen Eigenschaften werden die bituminösen Deckmassen mit bitumenverträglichen Polymeren modifiziert. Sie bewirken eine Erhöhung der Plastizitätsspanne und die Viskosität der Schmelze. Der Zusatz von Kautschuk und kautschukähnlichen Polymeren bewirkt neben dem Ansteigen des Erweichungspunktes gleichzeitig eine Verbesserung der Kälteflexibilität. Außerdem wird die Elastizität der bituminösen Masse erhöht. Machteiliig ist die geringere Alterungsbeständigkeit dieser doppelbindungshaltigen Polymere insbesondere gegen UV-Strahlung. Der Zusatz von Polyolefinen wie Polyethylen wirkt sich günstiger auf das Alterungsverhalten aus, aber eine Verbesserung der Kälteflexibilität wird im allgemeinen nicht erreicht und auch die Elastizität wird nur geringfügig verbessert. Der Plastizitätsbereich von Polymerbitumen, das mit Elastomeren modifiziert wurde, liegt etwa zwischen 125 und -35 °C und bei olefinmodifiziertem etwa zwischen 150 und -15°C. Die Plastizitätsspanne ist also in etwa gleich, aber um etwa 25 K verschoben. Dies ist für die Auswahl einer Dachdichtungsbahn ebenso wesentlich wie das Klebe- und Schweißverhalten oder die Chemikalien- und Alterungsbeständigkeit.To improve the mechanical properties, the bituminous coverings are modified with bitumen-compatible polymers. They increase the plasticity range and the viscosity of the melt. The addition of rubber and rubber-like polymers not only increases the softening point, but also improves the flexibility at low temperatures. In addition, the elasticity of the bituminous mass is increased. The lower aging resistance of these double bond-containing polymers, in particular against UV radiation, is a drawback. The addition of polyolefins such as polyethylene has a more favorable effect on aging behavior, but an improvement in cold flexibility is generally not achieved and the elasticity is only slightly improved. The range of plasticity of polymer bitumen, which has been modified with elastomers, is between 125 and -35 ° C and for olefin-modified ones between 150 and -15 ° C. The range of plasticity is roughly the same, but shifted by about 25 K. This is just as important for the selection of a roof sealing membrane as the adhesive and welding behavior or the resistance to chemicals and aging.

In der DD 215 559 wird vorgeschlagen, die Formstabilität von Bitumenmischungen durch Zusätze von strahlungsvernetzten Polymeren, insbesondere von Polyethylen, auch bei höheren Temperaturen zu verbessern. Der Vernetzungsgrad ist dabei so zu wählen, daß noch eine ausreichende Löslichkeit des vemetzten Polymers im Bitumen gegeben ist, da stark vernetzte Polymere also Füllstoffe anzusehen sind, die die Eigenschaften der bituminösen Massen nur Geringfügig verändern. Durch die Vernetzung wird die Molmasse des Polymers erhöht, was sich bekanntermaßen positiv auf den Erweichungspunkt, aber negativ auf den Brechpunkt und die Penetration auswirkt (Straße und Autobahn, 1986, Seiten 3 - 9). Die erfindungsgemäßen Bitumenmischungen sind, wie aus der Beschreibung hervorgeht, in erster Linie für den Straßenbau bestimmt. Das geht auch aus der Bitumenauswahl in den Beispielen hervor, die die für Dachbahnendeckmassen ungeeigneten Bitumensorten B 50 und B 80 benennt.DD 215 559 proposes to improve the dimensional stability of bitumen mixtures by adding radiation-crosslinked polymers, in particular polyethylene, even at higher temperatures. The degree of crosslinking is to be selected so that there is still sufficient solubility of the crosslinked polymer in the bitumen, since highly crosslinked polymers can therefore be considered as fillers which only slightly change the properties of the bituminous compositions. The crosslinking increases the molar mass of the polymer, which is known to have a positive effect on the softening point, but has a negative effect on the breaking point and penetration (Straße und Autobahn, 1986, pages 3-9). As can be seen from the description, the bitumen mixtures according to the invention are primarily intended for road construction. This is also evident from the bitumen selection in the examples, which names the bitumen types B 50 and B 80 that are unsuitable for roofing membrane coverings.

Aufgabe der Erfindung ist es, eine alterungsbeständige, mit bituminösen Klebemassen heiß- und kaltverklebbare Dachbahn zu schaffen, die eine erweiterte Plastizitätsspanne aufweist, die die der polyolefin- und die der kautschukmodifizierten Bitumina umfaßt.The object of the invention is to provide an aging-resistant, with hot and cold adhesive bituminous adhesives roofing membrane which has an expanded plasticity range, which includes the polyolefin and rubber-modified bitumens.

Die Aufgabe wird erfindungsgemäß durch eine Dachbahn gelöst, die aus einem zumindest einseitig mit einer Deckmasse aus Polymerbitumen beschichteten und gegebenenfalls mit Bitumenmassen imprägnierten Trägermaterial besteht, wobei die Deckmasse ein Bitumen/Kautschuk-Gemisch im Verhältnis von Bitumen zu Kautschuk zwischen 17/3 und 19/1 enthält und nach Fertigung der Bahn strahlungsvernetzt worden ist.The object is achieved according to the invention by a roofing membrane which consists of a carrier material which is coated on at least one side with a covering material made of polymer bitumen and optionally impregnated with bitumen materials, the covering material comprising a bitumen / rubber mixture in the ratio of bitumen to rubber between 17/3 and 19 1 contains and has been radiation cross-linked after manufacture of the web.

Als Kautschuk können alle bitumenverträglichen und strahlungsvernetzbaren natürlichen oder künstlichen Kautschuke verwendet werden, wie beispielsweise Styrol-Butadien-Kautschuk und Polybutadien. Trägermaterialen sind alle üblichen Vliese, Gelege oder Gewebe aus Glas- oder temperaturbeständigen Synthesefasern oder auch Folien aus Metall oder bei der Vernetzung nicht abbaubarem Kunststoff. Die Faserbahnen werden vorzugsweise mit Bitumen imprägniert, das auch mit einem durch Elektronenstrahlen vernetzbaren Polymer modifiziert sein kann.All bitumen-compatible and radiation-crosslinkable natural or artificial rubbers, such as styrene-butadiene rubber and polybutadiene, can be used as the rubber. Backing materials are all the usual nonwovens, scrims or fabrics made of glass or temperature-resistant synthetic fibers or also foils made of metal or plastic that is not degradable when cross-linked. The fiber webs are preferably impregnated with bitumen, which can also be modified with a polymer that can be crosslinked by electron beams.

Bei nicht selbstklebend ausgerüsteten Bahnen wird das Trägermaterial beidseitig mit der vernetzbaren Deckmasse beschichtet. Die Oberflächen können mit mineralischen Trennmitteln abgestreut oder mit Folien kaschiert sein, wie dies bei Dachbahnen je nach Verwendungszweck üblich ist.In the case of webs which are not self-adhesive, the backing material is coated on both sides with the crosslinkable covering compound. The surfaces can be sprinkled with mineral release agents or laminated with foils, as is usual with roofing membranes depending on the intended use.

Bituminöse Schmelzkleber- oder Kaltkleberschichten können zusätzlich vor oder nach der Bestrahlung aufgebracht werden. Es ist aber auch möglich, die Unterseite des Trägermaterials direkt mit dem bituminösen Kleber zu beschichten. Schweißbahnen dieser Art sind zwar aus der DE-OS 30 42 943 bekannt, aber ihre obere Deckschicht besteht aus einer Vulkanisierten Kautschukmischung mit einem nur geringen Bitumenanteil.Bituminous hotmelt or cold adhesive layers can also be applied before or after the irradiation. However, it is also possible to coat the underside of the carrier material directly with the bituminous adhesive. Welding tracks of this type are known from DE-OS 30 42 943, but their upper cover layer consists of a vulcanized rubber mixture with a low bitumen content.

Die Erfindung wird anhand der nachfolgenden Beispiele näher erläutert:The invention is illustrated by the following examples:

Beispiel 1example 1

Ein Polyesterfaservlies (230 g/m2) wird in einer üblichen Anlage zur Fertigung bituminöser Dachbahnen mit einer Mischung aus 90 Gew.-Teilen destilliertem Bitumen B 200 und 10 Gew.-Teilen Styrol-Butadien-Kautschuk imprägniert und beidseitig mit einem Gemisch aus 63 Gew.-Teilen destilliertem Bitumen B 200, 7 Gew.-Teillen Styrol-Butadien-Kautschuk und 30 Gew.-Teilen Schiefermehl mit einer Kömung < 100 gm in einer Dicke von je 1 mm beschichtet. Die Oberseite wird mit Schiefersplitt (Körnung äottp" 1,5 mm) und die Unterseite mit feinem Sand abgestreut. Danach durchläuft die Bahn einen Elektronenbeschleuniger und wird mit einer Strahlendosis von 16 . 104 Gy bestrahlt. Von dem bestrahlten und dem unbestrahlten Material wurde je eine Probe genommen und untersucht. Die Ergebnisse sind in der Tabelle 1 gegenübergestellt. Der Plastizitätsbereich (Temperaturbereich zwischen Kältebeständigkeit der Bahn nach DIN 52123 und dem Erweichungspunkt (RuK) der Deckmasse nach DIN 52011) ist durch das Bestrahlen in beiden Richtungen erweitert worden und hat um 70 K zugenommen. Der Erweichungspunkt liegt über dem üblicher olefinmodifizierter Massen.

Figure imgb0001
A polyester fiber fleece (230 g / m 2 ) is impregnated in a conventional plant for the production of bituminous roofing membranes with a mixture of 90 parts by weight of distilled bitumen B 200 and 10 parts by weight of styrene-butadiene rubber and on both sides with a mixture of 63 Parts by weight of distilled bitumen B 200, 7 parts by weight of styrene-butadiene rubber and 30 parts by weight of slate powder coated with a grain <100 gm in a thickness of 1 mm each. The upper side is sprinkled with slate chippings (grit Äottp "1.5 mm) and the underside with fine sand. Then the web passes through an electron accelerator and is irradiated with a radiation dose of 16.104 Gy. One of each of the irradiated and the non-irradiated material was Sampled and examined, the results are in the Table 1 compared. The plasticity range (temperature range between the cold resistance of the web according to DIN 52123 and the softening point (RuK) of the covering compound according to DIN 52011) has been expanded by irradiation in both directions and has increased by 70 K. The softening point is above the usual olefin-modified masses.
Figure imgb0001

Beispiel 2Example 2

Das Beispiel 1 wird wiederholt, wobei der Anteil des Styrol-Butadien-Kautschuks in der Imprägnier-und der Deckmasse durch die gleiche Menge Polybutadien ersetzt wird. Die Ergebnisse sind in der Tabelle 2 gegenüber gestellt. Der Plastizitätsbereich hat um 161 K zugenommen und übertrifft in beiden Richtungen den Plastizitätsbereich der bestrahlten Bahn nach Beispiel 1.

Figure imgb0002
Example 1 is repeated, the proportion of the styrene-butadiene rubber in the impregnating and the covering composition being replaced by the same amount of polybutadiene. The results are compared in Table 2. The plasticity range has increased by 161 K and in both directions exceeds the plasticity range of the irradiated web according to Example 1.
Figure imgb0002

Die erfindungsgemäßen Dachbahnen nach den Beispielen 1 und 2 eignen sich hervorragend für die Verklebung mit einem Heißbitumen oder einem bituminösen Kaltkleber.The roofing sheets according to the invention according to Examples 1 and 2 are outstandingly suitable for bonding with a hot bitumen or a bituminous cold adhesive.

Beispiel 3Example 3

Eine kaltselbstklebend ausgerüstete Dachbahn wird aus einem mit einem geblasenen Bitumen 85/40 imprägnierten Polyesterfaservlies (230 g/m2) hergestellt, das auf der Oberseite mit einer 1 mm dicken Deckmasse entsprechend dem Beispiel 1 und auf der Unterseite in 1 mm Dicke mit einer Masse aus 65 Gew.-Teilen destilliertem Bitumen B 200, 11 Gew.-Teilen Synthesekautschuk, 8 Gew.-Teilen Kolophonium und 3 Gew.-Teilen eines Extenders besteht. Die Oberseite wird danach wie in Beispiel 1 abgestreut und die Unterseite mit einem silikonisiertem Papier abgedeckt. Die Bahn wird mit 8 . 104 Gy, wie im Beispiel 1 beschrieben, bestrahlt. Die Klebkraft der Bahnunterseite verringert sich dabei nicht. Der Kaltkleber bleibt also bei der Bestrahlung unverändert.A cold self-adhesive roofing membrane is made from a polyester fiber fleece (230 g / m2) impregnated with a blown bitumen 85/40, which has a 1 mm thick covering compound according to Example 1 on the top and a 1 mm thickness on the underside 65 parts by weight of distilled bitumen B 200, 11 parts by weight of synthetic rubber, 8 parts by weight of rosin and 3 parts by weight of an extender. The top is then sprinkled as in Example 1 and the bottom covered with siliconized paper. The track is 8. 10 4 Gy, as described in Example 1, irradiated. The adhesive strength of the underside of the web does not decrease. The cold glue therefore remains unchanged during the irradiation.

Beispiel 4Example 4

Eine Schweißbahn wird hergestellt aus einem Glasfaservlies (100 g/m2), das wie im Beispiel 2 imprägniert und auf der Oberseite beschichtet wird. Die Unterseite wird mit einer 1 mm dicken Schicht aus einem geblasenen Bitumen 100/30 versehen. Die Oberseite wird anschließend mit Schiefersplitt abgestreut und die Unterseite talkumiert. Die mit 6 . 104 Gy bestrahlte Bahn läßt sich wie eine unbehandelte Schweißbahn auf alle üblichen Untergründe aufschwei r Schmelzkleber wird durch die Bestrahlung also nicht verändert.A welding track is produced from a glass fiber fleece (100 g / m 2 ), which is impregnated as in Example 2 and coated on the top. The underside is covered with a 1 mm thick layer of blown bitumen 100/30. The top is then sprinkled with slate chippings and the bottom is talcized. The 6th 10 4 Gy irradiated web can be welded onto all common substrates like an untreated welding web, so hot-melt adhesive is not changed by the irradiation.

Claims (7)

1. A roofing sheet consisting of a base material coated on at least one side with a covering material of polymer bitumen and optionally impregnated with bituminous materials, characterized in that the covering material contains a bitumen/rubber mixture in a ratio of bitumen to rubber of between 17/3 and 19/1 and is cross-linked by radiation after preparation of the sheet.
2. A roofing sheet according to Claim 1, characterized in that the bitumen/rubber mixture contains styrene-butadiene rubber.
3. A roofing sheet according to Claim 1, characterized in that the bitumen/rubber mixture contains polybutadiene.
4. A roofing sheet according to Claims 1 to 3, characterized in that the sheet is irradiated in an electron accelerator with a radiation dosage of from 6x104 to 16×10+ Gy.
5. A roofing sheet according to Claims 1 to 4, characterized in that the base material is a fibre sheet which is impregnated with a bitumen which is modified with a polymer cross-linkable by electron radiation.
6. A roofing sheet according to Claims 1 to 5, characterized in that the underside of the roofing sheet is provided with a bituminous hot-melt adhesive.
7. A roofing sheet according to Claims 1 to 5, characterized in that the underside of the roofing sheet is provided with a bituminous cold adhesive.
EP87110339A 1986-10-03 1987-07-17 Bituminous roofing membrane Expired EP0263248B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87110339T ATE48870T1 (en) 1986-10-03 1987-07-17 BITUMINOUS ROOFING MEMBRANE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3633647 1986-10-03
DE19863633647 DE3633647A1 (en) 1986-10-03 1986-10-03 BITUMINOESE ROOF RAILWAY

Publications (2)

Publication Number Publication Date
EP0263248A1 EP0263248A1 (en) 1988-04-13
EP0263248B1 true EP0263248B1 (en) 1989-12-20

Family

ID=6310945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110339A Expired EP0263248B1 (en) 1986-10-03 1987-07-17 Bituminous roofing membrane

Country Status (11)

Country Link
US (1) US4780362A (en)
EP (1) EP0263248B1 (en)
JP (1) JPS6399379A (en)
CN (1) CN1013777B (en)
AT (1) ATE48870T1 (en)
CA (1) CA1297833C (en)
DD (1) DD262465A5 (en)
DE (2) DE3633647A1 (en)
ES (1) ES2002687B3 (en)
GR (1) GR880300079T1 (en)
HU (1) HU201105B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1208156B (en) * 1986-12-24 1989-06-06 Danese Marco Nord Bitumi COMPOSITE PANEL AND PROCEDURE TO FORM WATERPROOF COVERS.
GB2226764A (en) * 1989-01-06 1990-07-11 Fibredec Ltd Safety surface
FR2701502B1 (en) * 1993-02-11 1995-05-24 Roger Vallon Improved fire and flame resistance of cellulose and bitumen-based roofs.
DE29706868U1 (en) * 1997-04-16 1998-08-13 Kohl Dachbelag Bautenschutz Bituminous welding membrane for sealing bridge structures, parking decks or the like.
DE19908586C1 (en) * 1999-02-27 2000-10-26 Villas Austria Gmbh Fuernitz Sealing sheet comprises carrier layer with bituminous top and bottom layers on its opposite surfaces, with top cover layer provided with wetting agent which wets material of bottom cover layer
NL1012733C2 (en) * 1999-07-29 2001-02-05 Esha Holding B V Flame-resistant roofing membrane.
US6696125B2 (en) 2002-04-25 2004-02-24 Polyglass, U.S.A. Self-adhered modified bitumen roofing material
US8309211B2 (en) * 2003-11-06 2012-11-13 Building Materials Investment Corporation Breathable non-asphaltic roofing underlayment
US20050126102A1 (en) * 2003-12-15 2005-06-16 Swann Raymond C. Self-adhered roof system and components
US20060116449A1 (en) * 2004-12-01 2006-06-01 Fina Technology, Inc. Bitumen/rubber compositions crosslinked with polythiomorpholines, polysulfides and/or mercaptobenzimidazole
US8323770B2 (en) * 2005-06-17 2012-12-04 Building Materials Investment Corporation Breathable non-asphaltic roofing underlayment having tailorable breathability

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1400385A (en) * 1971-05-30 1975-07-16 Grace W R & Co Preformed sheet-like structures
US4210693A (en) * 1977-12-20 1980-07-01 Dowdflor Corporation Register emboss and method
JPS53129263A (en) * 1977-04-19 1978-11-11 Toshiba Corp Production of chemical plating substrate
DE2922242C2 (en) * 1979-05-31 1982-11-04 Tajima Roofing Co., Ltd., Tokyo Cover film
US4413019A (en) * 1979-06-06 1983-11-01 The Standard Products Company Radiation curable adhesive compositions and composite structures
JPS5692906A (en) * 1979-12-26 1981-07-28 Yokohama Rubber Co Ltd:The Ultraviolet-curable composition and its usage
US4333866A (en) * 1980-06-16 1982-06-08 Owens-Corning Fiberglas Corporation Asphalt composition
US4440816A (en) * 1980-07-14 1984-04-03 Owens-Corning Fiberglas Corporation Rubber-modified asphalt composition
DE3042943A1 (en) * 1980-11-14 1982-07-01 Phoenix Ag, 2100 Hamburg Roof sheeting comprising rubber and synthetic or glass fibre fabric - has quick acting bitumen adhesive with low softening point
US4420524A (en) * 1981-06-12 1983-12-13 Owens-Corning Fiberglas Corporation Bitumen, atactic polypropylene and propylene/ethylene copolymer compositions and water-proofing membranes using the same
DE3145266C2 (en) * 1981-11-14 1985-08-22 Fa. Carl Freudenberg, 6940 Weinheim Roofing and waterproofing membrane
US4528241A (en) * 1982-08-12 1985-07-09 Owens-Corning Fiberglas Corporation Chemically modified asphalts and glass fibers treated therewith
DD215559A1 (en) * 1983-05-24 1984-11-14 Akad Wissenschaften Ddr BITUMEN COMPOUND
DD221002A1 (en) * 1983-12-28 1985-04-10 Isolier Erzeugnisse Veb CORROSION BINDING
US4530652A (en) * 1984-01-12 1985-07-23 Buck Ollie G Asphalt composition
US4600635A (en) * 1985-04-17 1986-07-15 W. R. Grace & Co. Bitumen adhesive and waterproofing membranes containing same

Also Published As

Publication number Publication date
DE3761215D1 (en) 1990-01-25
DD262465A5 (en) 1988-11-30
HU201105B (en) 1990-09-28
US4780362A (en) 1988-10-25
GR880300079T1 (en) 1988-10-21
ATE48870T1 (en) 1990-01-15
HUT51316A (en) 1990-04-28
DE3633647A1 (en) 1988-04-14
EP0263248A1 (en) 1988-04-13
CN1013777B (en) 1991-09-04
ES2002687A4 (en) 1988-10-01
CA1297833C (en) 1992-03-24
ES2002687B3 (en) 1990-04-16
CN87106092A (en) 1988-04-13
JPS6399379A (en) 1988-04-30

Similar Documents

Publication Publication Date Title
DE3432813C2 (en) Laminated bituminous cover skin
CH646638A5 (en) THERMAL INSULATING AND WATERPROOF LAMINATE PANEL AND METHOD FOR PRODUCING A WATERPROOF COVER USING THIS LAMINATE PANEL.
EP0263248B1 (en) Bituminous roofing membrane
DE2611177A1 (en) PROCEDURE FOR APPLYING A BITUMINOE OR A WATERPROOF AND THERMAL INSULATION ROOF COVERING
DE3509037C2 (en)
DE3108473A1 (en) SEALING ROOF FOR ROOFS AND OTHER BUILDING PARTS
DE1944337C3 (en) Bituminous mass
DE602005006022T2 (en) FILLED BITUMEN MASTIX BASED ON THERMOPLASTIC RESIN
EP0305852B1 (en) Process for manufacturing fire-protected sealing webs
DE2846124C2 (en) Sealing for component surfaces, in particular concrete roofs
DE2157810C2 (en) Bituminous compounds for use as a self-adhesive layer when exposed to light pressure
EP0262317B1 (en) Bitumenous sealing substrate for bridges
EP0337282B1 (en) Bituminous composition and its uses
DE2156792A1 (en) Bitumastic sealing web - provided with external polyethylene foil(s) for attachment to articles to be protected to be protected ag
DE3534075C2 (en)
DE3042943A1 (en) Roof sheeting comprising rubber and synthetic or glass fibre fabric - has quick acting bitumen adhesive with low softening point
DE2024156A1 (en) Coating material, in particular for paper webs
DE2218564A1 (en) Fire-resistant asphalt roof membrane
DE2040960A1 (en) Modified bitumen - with rubber for insulating and damp course materials
DE10101781B4 (en) Root resistant bitumen membranes
DE3521597A1 (en) BITUMINOUS DIMENSIONS AND THEIR USE
DE2239196A1 (en) Road markers - comprising substrated, filled, hot-melt compsns based on atactic polyolefins
DE2221237C3 (en) Ethylene copolymer bituminous geomembrane used for the production of waterproof and acid-resistant coverings
DE19716543A1 (en) Polymer-modified sealing material with utilisable waste products
DE2755636A1 (en) SEALING OR SEALING MATERIALS WITH FLAME RESISTANT PROPERTIES

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

ITCL It: translation for ep claims filed

Representative=s name: BARZANO' E ZANARDO ROMA S.P.A.

17P Request for examination filed

Effective date: 19880218

GBC Gb: translation of claims filed (gb section 78(7)/1977)
TCNL Nl: translation of patent claims filed
EL Fr: translation of claims filed
17Q First examination report despatched

Effective date: 19890607

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19891220

Ref country code: BE

Effective date: 19891220

REF Corresponds to:

Ref document number: 48870

Country of ref document: AT

Date of ref document: 19900115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3761215

Country of ref document: DE

Date of ref document: 19900125

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910705

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19910711

Year of fee payment: 5

Ref country code: AT

Payment date: 19910711

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910719

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910721

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910730

Year of fee payment: 5

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910731

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910802

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19910806

Year of fee payment: 5

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920717

Ref country code: GB

Effective date: 19920717

Ref country code: AT

Effective date: 19920717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920718

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19920718

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920731

Ref country code: CH

Effective date: 19920731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 87110339.6

Effective date: 19930204

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19991007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050717