EP2444537A1 - Non-woven fabric for acoustic applications with increased sound absorption characteristics - Google Patents

Non-woven fabric for acoustic applications with increased sound absorption characteristics Download PDF

Info

Publication number
EP2444537A1
EP2444537A1 EP11180322A EP11180322A EP2444537A1 EP 2444537 A1 EP2444537 A1 EP 2444537A1 EP 11180322 A EP11180322 A EP 11180322A EP 11180322 A EP11180322 A EP 11180322A EP 2444537 A1 EP2444537 A1 EP 2444537A1
Authority
EP
European Patent Office
Prior art keywords
nonwoven fabric
micro hollow
hollow body
nonwoven
micro
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.)
Granted
Application number
EP11180322A
Other languages
German (de)
French (fr)
Other versions
EP2444537B1 (en
Inventor
Stilla Rott
Hohmuth Dr. Hagen
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.)
eswegee Vliesstoff GmbH
Original Assignee
eswegee Vliesstoff GmbH
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 eswegee Vliesstoff GmbH filed Critical eswegee Vliesstoff GmbH
Priority to PL11180322T priority Critical patent/PL2444537T3/en
Publication of EP2444537A1 publication Critical patent/EP2444537A1/en
Application granted granted Critical
Publication of EP2444537B1 publication Critical patent/EP2444537B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • D04H1/413—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 containing granules other than absorbent substances
    • 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
    • D04H1/587—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 characterised by the bonding agents used
    • 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
    • D04H1/64—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 the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process

Definitions

  • the invention relates to a nonwoven fabric for acoustic applications with increased sound absorption properties, consisting of longitudinally oriented or cross-laid, in particular preconsolidated plastic fibers with a basis weight of 20g / m 2 to 100g / m 2 , preferably 30g / m 2 to 80g / m 2 , according to claim 1, a method for producing such a nonwoven fabric and the use of the nonwoven fabric material produced by the process according to the invention.
  • Known ceiling panels for sound absorption have a perforation to effect the desired sound insulation by total reflection.
  • High-quality sound absorption panels achieve a maximum absorption coefficient of 0.60.
  • Standard panels are classified according to DIN 4102 in fire protection class B1. By selecting the appropriate material, the fire protection class A2 can also be achieved.
  • the US 3,676,288 A shows a method with gas-filled microcavities, which serve to bind fibers together and perform an increase in volume.
  • Binders which consist of thermoplastic particles and wherein a foam blowing agent is supplied.
  • the nonwoven fabric for acoustic applications with increased sound absorption properties, which achieves a sound absorption coefficient of> 0.6.
  • the nonwoven material should have a high flow resistance or a low air permeability at a low weight.
  • the material should not be flammable, so that the DIN 53438 K1 is met.
  • it is necessary to form the nonwoven material so that a high tensile strength in the longitudinal and transverse direction and a high rigidity is present while maintaining the necessary flexibility of the corresponding sheet material.
  • the object of the invention is achieved by the nonwoven fabric according to combination of features according to claim 1, by the method for producing such a nonwoven material and by the inventive use of the inventively produced nonwoven fabric.
  • nonwoven fabric for acoustic applications with increased sound absorption properties, wherein the nonwoven fabric of a longitudinal or cross-laid, in particular preconsolidated plastic fiber material having a basis weight of 20g / m 2 to 100g / m 2 , preferably 30g / m 2 to 80g / m 2 consists.
  • the filler used is unexpanded hollow microbodies with a proportion of about 0.5 to 4% by weight.
  • the binder used is a high molecular weight polyester material for fixing the hollow microbodies to the nonwoven fibers and for increasing the rigidity and tear resistance.
  • any common aqueous-based polymer binder or binder mixture of acrylate, styrene butadiene or vinyl acetate polymers may be used.
  • the nonwoven fabric is dried at temperatures such that expansion of the micro-hollow bodies occurs, whereby the pores of the nonwoven fabric are sealed, resulting in the desired sound absorption properties.
  • a flame retardant of known type can readily be added to the equipment.
  • the hollow microbodies consist of thermoplastic shells filled with propellant gas.
  • unexpanded micro hollow bodies of propellant gas with a thermoplastic shell made of PVC or vinylidene chloride-acrylonitrile copolymers are used to densify the nonwoven fabric and to improve the acoustics as soon as the hollow microbodies are inflated.
  • the drying is carried out according to the invention at temperatures between 100 ° C and 200 ° C, preferably between 140 ° C and 180 ° C.
  • the amount of finish of the finishing formulation is about 20% to 50%, especially 30% to 40% of the web weight.
  • the nonwoven material produced in this way can be used as a cover fleece for acoustic cover plates, for thermal insulation and sealing or else as cover and acoustic fleece in the automotive industry.
  • the nonwoven base material is a per se known thermal nonwoven or otherwise prepared by, for example, hydroentanglement nonwoven material of longitudinal fibers, resulting in a uniform nonwoven image.
  • the fibers used are PES, CoPES or similar fiber materials.
  • the basis weight is in the range of 20 g / m 2 to 100 g / m 2 , ideally in the range between 30 g / m 2 to 80 g / m 2 with an air permeability of 1500 to 3000 l / m 2 ⁇ s (200 Pa).
  • the finishing formulation contains a high molecular weight polyester binder for the necessary stiffness and for increasing the tensile strength or elongation and for bonding micro hollow bodies used according to the invention to the nonwoven fibers.
  • a flame retardant z As red phosphorus or other commercially available flame retardants used.
  • the nonwoven fabric is formed by adding initially unexpanded micro hollow bodies of propellant gas with a thermoplastic shell of PVC or vinylidene chloride-acrylonitrile copolymers.
  • the hollow microbodies serve to densify the nonwoven material and to provide the desired improvement in acoustics after thermal treatment and consequent bloat.
  • cover fleece can be coated with thermosetting or thermosetting adhesives.
  • the coating is not applied over the entire surface in order to obtain the desired acoustic effect.
  • the equipment is e.g. with a standard foulard.
  • the drying takes place at temperatures which allow the hollow microspheres to expand into spheres to close the relatively large pores of the nonwoven material.
  • the drying temperatures are in the range between 100 ° C and 200 ° C, preferably between 140 ° C and 180 ° C.
  • the total amount of the formulation is 20% to 50% of the web weight, preferably 30% to 40% of the web weight.
  • the proportion of micro hollow bodies in the nonwoven is according to the invention only 0.5% by weight to 4% by weight.
  • the sealing of the nonwoven pores can be influenced in a wide range.
  • the proportion can be increased to up to 20 wt .-%.
  • the total amount of the capacity of the fiber structure is not overstressed in order to prevent the micro-hollow body rest on the surface and are easily abradable.
  • the amount of added flame retardant depends on the fire protection requirements.
  • a coating is made with commercially available thermoplastic or thermosetting adhesives in order to ensure a common type of further treatment for special cover fleece, which by means of pressure and temperature treatment to another medium, eg. As metal ceiling panels, glass fiber mats or polyurethane foam sheets are laminated.
  • the fleece can be produced as a longitudinal or cross-laid binder fleece.
  • the usual binder recipe here the micro hollow body are added directly. If necessary, the flame retardants are also added to the formulation. As a result, an equipment operation can be saved.
  • Both manufacturing variants may include a calendering step to enhance the optics, i. H. to optimize the surface of the nonwoven material by removing imperfections without adversely affecting the tightness and desired acoustic properties.
  • FIG. 1 shown schematic diagram shows an arrangement of synthetic fibers 1, in the already expanded micro hollow body 2 are introduced, with a large part of the fiber pores is closed by the micro hollow body 2, so that there is the desired increased sound absorption.
  • FIG. 2 illustrates the above with reference to a photographic enlarged image of an inventively realized nonwoven fabric for acoustic applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Nonwoven fabric with increased sound absorption properties, comprises a longitudinally directed or crosswise pre-consolidated synthetic fiber material with a surface weight output of 20-100 g/m 2>, preferably 30-80 g/m 2>, an equipment comprising an unexpanded micro hollow body (0.5-4 wt.%) as a filler, and a high molecular weight polyester material that is applied as a binder for fixing the micro hollow body to the nonwoven fibers, and dried for increasing the stiffness and tensile strength, which leads to expansion of the micro hollow body and sealing of the pores of the fabric. An independent claim is also included for producing the nonwoven fabric, comprising adding the unexpanded micro hollow bodies to the equipment in addition to binder, where depending on the proportion of the micro hollow body in the equipment, the micro hollow body expanding into spheres during the subsequent drying, seals the nonwoven pores.

Description

Die Erfindung betrifft einen Vliesstoff für akustische Anwendungen mit erhöhten Schallabsorptionseigenschaften, bestehend aus längsgerichteten oder kreuzgelegten, insbesondere vorverfestigten Kunststofffasern mit einem Flächenausgangsgewicht von 20g/m2 bis 100g/m2, bevorzugt 30g/m2 bis 80g/m2, gemäß Patentanspruch 1, ein Verfahren zur Herstellung eines derartigen Vliesstoffes sowie die Verwendung des nach dem erfindungsgemäßen Verfahren hergestellten Vliesstoffmaterials.The invention relates to a nonwoven fabric for acoustic applications with increased sound absorption properties, consisting of longitudinally oriented or cross-laid, in particular preconsolidated plastic fibers with a basis weight of 20g / m 2 to 100g / m 2 , preferably 30g / m 2 to 80g / m 2 , according to claim 1, a method for producing such a nonwoven fabric and the use of the nonwoven fabric material produced by the process according to the invention.

Bekannte Deckenplatten zur Schallabsorption weisen eine Perforierung auf, um die gewünschte Schalldämmung durch Totalreflexion zu bewirken. Bei hochwertigen Schallabsorptions-Platten werden Schallabsorptionskoeffizienten von maximal 0,60 erreicht.Known ceiling panels for sound absorption have a perforation to effect the desired sound insulation by total reflection. High-quality sound absorption panels achieve a maximum absorption coefficient of 0.60.

Standardplatten sind nach DIN 4102 in der Brandschutzklasse B1 eingestuft. Durch eine entsprechende Materialauswahl kann auch die Brandschutzklasse A2 erreicht werden.Standard panels are classified according to DIN 4102 in fire protection class B1. By selecting the appropriate material, the fire protection class A2 can also be achieved.

Es ist ebenfalls bekannt, Deckenplattenkonstruktionen zusätzlich mit einem Vliesmaterial abzudecken oder zu beaufschlagen. Derartige Verkleidungen sollen die Akustik in Räumen verbessern, die eine entsprechende Deckenplattenkonstruktion aufweisen.It is also known to additionally cover or apply ceiling tile constructions to a nonwoven material. Such panels are intended to improve the acoustics in rooms having a corresponding ceiling panel construction.

Um die jeweiligen Brandschutzanforderungen zu erfüllen, bestehen bekannte Vliesmaterialien für derartige Abdeckanwendungen aus Glas- oder Mineralfaserstoffen mit all den hierdurch verbundenen Nachteilen bei der Handhabung und der möglicherweise hieraus folgenden Belastung der Raumluft.In order to meet the respective fire protection requirements, known nonwoven materials for such cover applications made of glass or mineral fiber materials with all the associated disadvantages in handling and possibly resulting burden of indoor air.

Die US 3,676,288 A zeigt ein Verfahren mit gasgefüllten Mikrohohlkörpern, die dazu dienen, Fasern aneinander zu binden und eine Volumenerhöhung durchzuführen.The US 3,676,288 A shows a method with gas-filled microcavities, which serve to bind fibers together and perform an increase in volume.

Aus der DE 10 2008 057 058 A1 ist ein Abdeckvlies vorbekannt, wobei auf eine spezielle Flottenzusammensetzung der Ausrüstung eingegangen wird.From the DE 10 2008 057 058 A1 a cover fleece is previously known, wherein a special fleet composition of the equipment is discussed.

Gemäß der Lehre nach DE 10 2005 044 504 A1 erfolgt eine WirkstoffFreisetzung, wobei sich die eigentlichen Wirkstoffe in Mikrokapseln befinden. Derartig realisierte Textilien werden bei der Herstellung von Funktionsbekleidungsstücken verwendet.According to the teaching DE 10 2005 044 504 A1 there is an active ingredient release, wherein the actual active ingredients are in microcapsules. Such realized textiles are used in the manufacture of functional garments.

Bei den mattenförmigen Formteilen nach DE 34 12 660 A1 kommen Bindemittel zum Einsatz, die aus thermoplastischen Partikeln bestehen und wobei ein Schaumtreibmittel zugeführt ist.At the mat-shaped parts after DE 34 12 660 A1 Binders are used which consist of thermoplastic particles and wherein a foam blowing agent is supplied.

Aus dem Vorgenannten ist es Aufgabe der Erfindung, einen Vliesstoff für akustische Anwendungen mit erhöhten Schallabsorptionseigenschaften anzugeben, der einen Schallabsorptionskoeffizienten von > 0,6 erreicht. Das Vliesstoffmaterial soll einen hohen Strömungswiderstand bzw. eine geringe Luftdurchlässigkeit bei einem geringen Gewicht aufweisen. Darüber hinaus soll das Material nicht brennbar sein, so dass die DIN 53438 K1 erfüllt ist. Ergänzend gilt es, das Vliesstoffmaterial so auszubilden, dass eine hohe Reißfestigkeit in Längs- und Querrichtung besteht und eine hohe Steifigkeit vorhanden ist bei gleichzeitigem Erhalt der notwendigen Flexibilität des entsprechenden bahnförmigen Materials.From the foregoing, it is an object of the invention to provide a nonwoven fabric for acoustic applications with increased sound absorption properties, which achieves a sound absorption coefficient of> 0.6. The nonwoven material should have a high flow resistance or a low air permeability at a low weight. In addition, the material should not be flammable, so that the DIN 53438 K1 is met. In addition, it is necessary to form the nonwoven material so that a high tensile strength in the longitudinal and transverse direction and a high rigidity is present while maintaining the necessary flexibility of the corresponding sheet material.

Die Lösung der Aufgabe der Erfindung erfolgt durch den Vliesstoff gemäß Merkmalskombination nach Patentanspruch 1, durch das Verfahren zur Herstellung eines solchen Vliesstoffmaterials und durch die erfindungsgemäße Verwendung des erfindungsgemäß produzierten Vliesstoffes.The object of the invention is achieved by the nonwoven fabric according to combination of features according to claim 1, by the method for producing such a nonwoven material and by the inventive use of the inventively produced nonwoven fabric.

Es wird demnach von einem Vliesstoff für akustische Anwendungen mit erhöhten Schallabsorptionseigenschaften ausgegangen, wobei der Vliesstoff aus einem längsgerichteten oder kreuzgelegten, insbesondere vorverfestigten Kunststofffasermaterial mit einem Flächenausgangsgewicht von 20g/m2 bis 100g/m2, bevorzugt 30g/m2 bis 80g/m2 besteht.It is therefore assumed that a nonwoven fabric for acoustic applications with increased sound absorption properties, wherein the nonwoven fabric of a longitudinal or cross-laid, in particular preconsolidated plastic fiber material having a basis weight of 20g / m 2 to 100g / m 2 , preferably 30g / m 2 to 80g / m 2 consists.

Bei der Ausrüstung des Vliesstoffes werden als Füllstoff ungeblähte Mikrohohlkörper mit einem Anteil von ca. 0,5 bis 4 Gew.-% eingesetzt. Als Binder kommt ein hochmolekulares Polyestermaterial zum Fixieren der Mikrohohlkörper an den Vliesfasern sowie zur Erhöhung der Steifigkeit und Reißfestigkeit zur Anwendung. Es kann jedoch grundsätzlich jeder übliche Polymerbinder oder Bindermischung auf wässriger Basis, aus Acrylat, Styrolbutatien oder Vinylacetat-Polymeren verwendet werden. Der Vliesstoff wird bei solchen Temperaturen getrocknet, dass es zu einem Expandieren der Mikrohohlkörper kommt, wodurch die Poren des Vlieses verschlossen werden mit der Folge der gewünschten Schallabsorptionseigenschaften.In the finishing of the nonwoven fabric, the filler used is unexpanded hollow microbodies with a proportion of about 0.5 to 4% by weight. The binder used is a high molecular weight polyester material for fixing the hollow microbodies to the nonwoven fibers and for increasing the rigidity and tear resistance. However, in principle, any common aqueous-based polymer binder or binder mixture of acrylate, styrene butadiene or vinyl acetate polymers may be used. The nonwoven fabric is dried at temperatures such that expansion of the micro-hollow bodies occurs, whereby the pores of the nonwoven fabric are sealed, resulting in the desired sound absorption properties.

Erfindungsgemäß kann der Ausrüstung ohne weiteres ein Flammschutzmittel bekannter Art zugegeben werden.According to the invention, a flame retardant of known type can readily be added to the equipment.

Die Mikrohohlkörper bestehen aus thermoplastischen Schalen, gefüllt mit Treibgas. Insbesondere kommen ungeblähte Mikrohohlkörper aus Treibgas mit einer thermoplastischen Schale aus PVC oder Vinylidenchlorid-Acrylnitril-Copolymeren zur Verdichtung des Vlieses und zur Verbesserung der Akustik, sobald die Mikrohohlkörper aufgebläht werden, zum Einsatz.The hollow microbodies consist of thermoplastic shells filled with propellant gas. In particular, unexpanded micro hollow bodies of propellant gas with a thermoplastic shell made of PVC or vinylidene chloride-acrylonitrile copolymers are used to densify the nonwoven fabric and to improve the acoustics as soon as the hollow microbodies are inflated.

Die Trocknung erfolgt erfindungsgemäß bei Temperaturen zwischen 100°C und 200°C, bevorzugt zwischen 140°C und 180°C.The drying is carried out according to the invention at temperatures between 100 ° C and 200 ° C, preferably between 140 ° C and 180 ° C.

Die Auflagemenge der Ausrüstungsrezeptur beträgt etwa 20% bis 50%, insbesondere 30% bis 40% des Vliesgewichts.The amount of finish of the finishing formulation is about 20% to 50%, especially 30% to 40% of the web weight.

Bei dem erfindungsgemäßen Verfahren zur Herstellung des vorstehend erläuterten Vliesstoffes werden der Ausrüstung neben einem Bindemittel, z. B. einem hochmolekularen Polyestermaterial, ungeblähte Mikrohohlkörper zugegeben, wobei über den Anteil der Mikrohohlkörper in der Ausrüstung die bei der späteren Trocknung zu Kugeln expandierenden, diese eine Abdichtung der Vliesporen bewirken.In the method according to the invention for the preparation of the above-described nonwoven fabric of the equipment in addition to a binder, for. As a high molecular weight polyester material, unenclosed micro hollow body added, over the proportion of micro hollow body in the equipment which in the later drying to balls expanding, this effect a sealing of the non-woven pores.

Das derart hergestellte Vliesstoffmaterial kann als Abdeckvlies für Akustik-Deckplatten, zur thermischen Isolierung und Abdichtung oder aber auch als Abdeck- und Akustikvlies im Automobilbau angewendet werden.The nonwoven material produced in this way can be used as a cover fleece for acoustic cover plates, for thermal insulation and sealing or else as cover and acoustic fleece in the automotive industry.

Die Erfindung soll nachstehend anhand eines Ausführungsbeispiels näher erläutert werden.The invention will be explained below with reference to an embodiment.

Das Vliesstoffgrundmaterial ist ein an sich bekanntes Thermovlies oder ein anderweitig, z.B. durch Wasserstrahlverfestigung vorbereitetes Vliesmaterial aus längsgerichteten Fasern, wodurch sich ein gleichmäßiges Vliesbild ergibt. Als Fasern kommen PES, CoPES oder ähnliche Fasermaterialien zum Einsatz. Das Flächengewicht liegt im Bereich von 20g/m2 bis 100g/m2, idealerweise im Bereich zwischen 30g/m2 bis 80g/m2 bei einer Luftdurchlässigkeit von 1500 bis 3000 l/m2×s (200 Pa).The nonwoven base material is a per se known thermal nonwoven or otherwise prepared by, for example, hydroentanglement nonwoven material of longitudinal fibers, resulting in a uniform nonwoven image. The fibers used are PES, CoPES or similar fiber materials. The basis weight is in the range of 20 g / m 2 to 100 g / m 2 , ideally in the range between 30 g / m 2 to 80 g / m 2 with an air permeability of 1500 to 3000 l / m 2 × s (200 Pa).

Die Ausrüstungsrezeptur enthält einen hochmolekularen Polyester-Binder für die notwendige Steifheit und zur Erhöhung der Reißfestigkeit bzw. Dehnung und zur Bindung von erfindungsgemäß zur Anwendung kommenden Mikrohohlkörpern an die Vliesfasern. Als Flammschutzmittel werden z. B. roter Phosphor oder andere handelsübliche Flammschutzmittel eingesetzt.The finishing formulation contains a high molecular weight polyester binder for the necessary stiffness and for increasing the tensile strength or elongation and for bonding micro hollow bodies used according to the invention to the nonwoven fibers. As a flame retardant z. As red phosphorus or other commercially available flame retardants used.

Der Vliesstoff wird durch Beigabe von zunächst ungeblähten Mikrohohlkörpern aus Treibgas mit einer thermoplastischen Schale aus PVC oder Vinylidenchlorid-Acrylnitril-Copolymeren gebildet. Die Mikrohohlkörper dienen der Verdichtung des Vliesmaterials und der gewünschten Verbesserung der Akustik nach thermischer Behandlung und hierdurch bedingtem Aufblähen.The nonwoven fabric is formed by adding initially unexpanded micro hollow bodies of propellant gas with a thermoplastic shell of PVC or vinylidene chloride-acrylonitrile copolymers. The hollow microbodies serve to densify the nonwoven material and to provide the desired improvement in acoustics after thermal treatment and consequent bloat.

Zur weiteren Verarbeitung kann das Abdeckvlies mit thermo- oder duroplastischen Klebern beschichtet werden. Die Beschichtung wird hierbei nicht vollflächig aufgebracht, um die gewünschte akustische Wirkung zu erhalten.For further processing, the cover fleece can be coated with thermosetting or thermosetting adhesives. The coating is not applied over the entire surface in order to obtain the desired acoustic effect.

Die Ausrüstung erfolgt z.B. mit einem Standard-Foulard.The equipment is e.g. with a standard foulard.

Die Trocknung erfolgt bei Temperaturen, die die Mikrohohlkörper zu Kugeln expandieren lassen, um die relativ großen Poren des Vliesmaterials zu verschließen. Die Trocknungstemperaturen liegen im Bereich zwischen 100°C und 200°C, bevorzugt zwischen 140°C und 180°C.The drying takes place at temperatures which allow the hollow microspheres to expand into spheres to close the relatively large pores of the nonwoven material. The drying temperatures are in the range between 100 ° C and 200 ° C, preferably between 140 ° C and 180 ° C.

Durch das Aufblähen und das Verschließen der Poren verbessert sich die Akustik des Vliesmaterials. Gleichzeitig steigt die Dichtigkeit als Abdeckvlies und der sich hierdurch ergebende bessere Rieselschutz.The puffing and closing of the pores improves the acoustics of the nonwoven material. At the same time the tightness as Abdeckvlies and thereby resulting better trickle protection increases.

Die Auflagemenge der gesamten Rezeptur liegt bei 20% bis 50% des Vliesgewichts, bevorzugt bei 30% bis 40% des Vliesgewichts.The total amount of the formulation is 20% to 50% of the web weight, preferably 30% to 40% of the web weight.

Der Anteil der Mikrohohlkörper im Vlies beträgt erfindungsgemäß nur 0,5 Gew.% bis 4 Gew.-%. Durch eine erfindungsgemäße Variation der eingesetzten Menge der Mikrohohlkörper kann die Abdichtung der Vliesporen in einem weiten Bereich beeinflusst werden. Bei der Anwendung als Abdeckvlies in der Automobiltechnik kann der Anteil auf bis zu 20 Gew.-% erhöht werden.The proportion of micro hollow bodies in the nonwoven is according to the invention only 0.5% by weight to 4% by weight. By a variation of the amount of micro hollow body used according to the invention, the sealing of the nonwoven pores can be influenced in a wide range. When used as Abdeckvlies in automotive technology, the proportion can be increased to up to 20 wt .-%.

Es gilt zu beachten, dass die Gesamtmenge die Aufnahmefähigkeit der Faserstruktur nicht überbeansprucht wird, um zu verhindern, dass die Mikrohohlkörper auf der Oberfläche aufliegen und leicht abreibbar sind. Die Menge des zugegebenen Flammschutzmittels richtet sich nach den brandschutzseitigen Anforderungen.It should be noted that the total amount of the capacity of the fiber structure is not overstressed in order to prevent the micro-hollow body rest on the surface and are easily abradable. The amount of added flame retardant depends on the fire protection requirements.

Bei einer weiteren Ausführungsform wird in Weiterbildung der Erfindung eine Beschichtung mit handelsüblichen thermoplastischen oder duroplastischen Klebern vorgenommen, um eine übliche Art der Weiterbehandlung für spezielle Abdeckvliese zu gewährleisten, die mittels Druck- und Temperaturbehandlung auf ein anderes Medium, z. B. Metalldeckenplatten, Glasfasermatten oder Polyurethanschaumgebilde aufkaschiert werden.In a further embodiment of the invention, a coating is made with commercially available thermoplastic or thermosetting adhesives in order to ensure a common type of further treatment for special cover fleece, which by means of pressure and temperature treatment to another medium, eg. As metal ceiling panels, glass fiber mats or polyurethane foam sheets are laminated.

Bei einer erfindungsgemäßen Variante kann das Vlies als längs- oder kreuzgelegtes Bindervlies erzeugt werden. Der üblichen Binderrezeptur werden hier die Mikrohohlkörper direkt zugesetzt. Bei Notwendigkeit werden die Flammschutzmittel ebenfalls der Rezeptur zugegeben. Hierdurch kann ein Ausrüstungsarbeitsgang eingespart werden.In a variant according to the invention, the fleece can be produced as a longitudinal or cross-laid binder fleece. The usual binder recipe here the micro hollow body are added directly. If necessary, the flame retardants are also added to the formulation. As a result, an equipment operation can be saved.

Beide Herstellungsvarianten können einen Kalanderschritt umfassen, um die Optik, d. h. die Oberfläche des Vliesmaterials zu optimieren, indem Unebenheiten beseitigt werden, ohne dass die Dichtigkeit und die gewünschten akustischen Eigenschaften nachteilig beeinflusst sind.Both manufacturing variants may include a calendering step to enhance the optics, i. H. to optimize the surface of the nonwoven material by removing imperfections without adversely affecting the tightness and desired acoustic properties.

Die in der Figur 1 gezeigte Prinzipskizze lässt eine Anordnung von Kunstfasern 1 erkennen, in die bereits expandierte Mikrohohlkörper 2 eingebracht sind, wobei ein Großteil der Faserporen durch die Mikrohohlkörper 2 verschlossen ist, so dass sich die gewünschte erhöhte Schallabsorption ergibt.The in the FIG. 1 shown schematic diagram shows an arrangement of synthetic fibers 1, in the already expanded micro hollow body 2 are introduced, with a large part of the fiber pores is closed by the micro hollow body 2, so that there is the desired increased sound absorption.

Figur 2 illustriert das Vorstehende anhand einer fotografischen vergrößerten Abbildung eines erfindungsgemäß realisierten Vliesstoffes für akustische Anwendungen. FIG. 2 illustrates the above with reference to a photographic enlarged image of an inventively realized nonwoven fabric for acoustic applications.

Claims (7)

Vliesstoff für akustische Anwendungen mit erhöhten Schallabsorptionseigenschaften, bestehend aus einem längsgerichteten oder kreuzgelegten, insbesondere vorverfestigten Kunststofffasermaterial mit einem Flächenausgangsgewicht von 20g/m2 bis 100g/m2, bevorzugt 30g/m2 bis 80g/m2, dadurch gekennzeichnet, dass
bei der Ausrüstung als Füllstoff ungeblähte Mikrohohlkörper mit einem Anteil von ca. 0,5 bis 4 Gew.-% eingesetzt werden, wobei als Binder ein hochmolekulares Polyestermaterial zum Fixieren der Mikrohohlkörper an den Vliesfasern sowie zur Erhöhung der Steifigkeit und der Reißfestigkeit zur Anwendung kommt und eine Trocknung bei solchen Temperaturen erfolgt, die zu einem Expandieren der Mikrohohlkörper führt, um die Poren des Vlieses zu verschließen.Nonwoven fabric for acoustic applications with improved sound absorption properties, consisting of a longitudinal or cross-layered, in particular preconsolidated synthetic fiber material having a basis starting weight of 20 g / m 2 to 100g / m 2, preferably 30g / m 2 to 80g / m 2, characterized in that
used in the equipment as a filler unexpanded micro hollow body in a proportion of about 0.5 to 4 wt .-%, being used as a binder, a high molecular weight polyester material for fixing the micro hollow body to the nonwoven fibers and to increase the rigidity and tear strength is used and a drying takes place at such temperatures, which leads to an expansion of the micro-hollow body in order to close the pores of the nonwoven fabric. Vliesstoff nach Anspruch 1,
dadurch gekennzeichnet, dass
die Ausrüstung ein Flammschutzmittel umfasst.Nonwoven fabric according to claim 1,
characterized in that
the equipment comprises a flame retardant. Vliesstoff nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
die Mikrohohlkörper aus thermoplastischen Schalen bestehen, die mit Treibgas gefüllt sind.Nonwoven fabric according to claim 1 or 2,
characterized in that
the micro hollow body consist of thermoplastic shells filled with propellant gas. Vliesstoff nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
die Trocknung bei Temperaturen zwischen 100°C bis 200°C, bevorzugt zwischen 140°C und 180°C erfolgt.Nonwoven fabric according to one of the preceding claims,
characterized in that
the drying takes place at temperatures between 100 ° C to 200 ° C, preferably between 140 ° C and 180 ° C. Vliesstoff nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
die Auflagemenge der Ausrüstungsrezeptur (trocken) 20% bis 50%, insbesondere 30% bis 40% des Vliesgewichts beträgt.Nonwoven fabric according to one of the preceding claims,
characterized in that
the amount of dressing of the finishing formulation (dry) is 20% to 50%, especially 30% to 40% of the web weight. Verfahren zur Herstellung eines Vliesstoffes für akustische Anwendungen mit erhöhten Schallabsorptionseigenschaften, bestehend aus einem längsgerichteten oder kreuzgelegten, insbesondere vorverfestigten Kunststofffasermaterial mit einem Flächenausgangsgewicht von 20g/m2 bis 100g/m2, bevorzugt 30g/m2 bis 80g/m2,
dadurch gekennzeichnet, dass
bei der Ausrüstung mit ungeblähten Mikrohohlkörpern über den Anteil der Mikrohohlkörper in der Ausrüstung die bei der späteren Trocknung zu Kugeln expandierenden Mikrohohlkörper eine Abdichtung der Vliesporen bewirken, wobei der Anteil der Mikrohohlkörper im Vlies zwischen 0,5 Gew.-% und 20 Gew.-% liegt, um eine Überbeanspruchung der Aufnahmefähigkeit der Faserstruktur und ein Aufliegen von Mikrohohlkörpern auf der Oberfläche zu verhindern.A process for producing a nonwoven fabric for acoustic applications with improved sound absorption properties, consisting of a longitudinal or cross-layered, in particular preconsolidated synthetic fiber material having a basis starting weight of 20 g / m 2 to 100g / m 2, preferably 30g / m 2 to 80g / m 2,
characterized in that
in the case of the equipment with unexpanded micro hollow bodies over the proportion of micro hollow bodies in the equipment, the hollow microspheres expanding into spheres during the later drying effect a sealing of the non-woven pores, the proportion of micro hollow bodies in the nonwoven being between 0.5% by weight and 20% by weight is to prevent overuse of the capacity of the fiber structure and a micro-cavities on the surface to prevent. Verwendung eines Vliesstoffes, hergestellt nach einem Verfahren gemäß Anspruch 6 als Abdeckvlies für Akustik-Deckplatten, zur thermischen Isolierung und Abdichtung oder als Abdeck- und Akustikvlies im Automobilbau.Use of a nonwoven fabric prepared by a process according to claim 6 as cover fleece for acoustic cover plates, for thermal insulation and sealing or as cover and acoustic fleece in the automotive industry.
EP11180322.7A 2010-09-13 2011-09-07 Non-woven fabric for acoustic applications with increased sound absorption characteristics Active EP2444537B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11180322T PL2444537T3 (en) 2010-09-13 2011-09-07 Non-woven fabric for acoustic applications with increased sound absorption characteristics

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010045191 2010-09-13
DE102010047533A DE102010047533A1 (en) 2010-09-13 2010-10-05 Nonwoven fabric for acoustic applications with increased sound absorption properties

Publications (2)

Publication Number Publication Date
EP2444537A1 true EP2444537A1 (en) 2012-04-25
EP2444537B1 EP2444537B1 (en) 2013-11-13

Family

ID=45756173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11180322.7A Active EP2444537B1 (en) 2010-09-13 2011-09-07 Non-woven fabric for acoustic applications with increased sound absorption characteristics

Country Status (6)

Country Link
EP (1) EP2444537B1 (en)
DE (2) DE202010017776U1 (en)
DK (1) DK2444537T3 (en)
ES (1) ES2444143T3 (en)
PL (1) PL2444537T3 (en)
PT (1) PT2444537E (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016101816A1 (en) * 2016-02-02 2017-08-03 Claus Schierz layer material
DE102016207604A1 (en) 2016-05-03 2017-11-09 Volkswagen Aktiengesellschaft Process for producing a fiber composite plastic component
CN113808562B (en) * 2021-09-29 2024-06-04 哈尔滨工程大学 Three-dimensional chiral acoustic metamaterial with high bearing capacity and low-broadband vibration suppression performance

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676288A (en) 1970-05-04 1972-07-11 Kendall & Co Low-density bonded nonwoven fabrics and process therefor
GB1427647A (en) * 1973-07-20 1976-03-10 Firet Bv Process for producing fibrous fabrics for use in fibre-reinforced plastics
DE3412660A1 (en) 1984-04-02 1985-10-10 Günter H. 1000 Berlin Kiss METHOD FOR THE PRODUCTION OF MOLDED PARTS FROM FIBROUS MATERIAL AND FIBER MAT FOR THE PRODUCTION OF MOLDED PARTS
JPH0482950A (en) * 1990-07-19 1992-03-16 Sekisui Chem Co Ltd Production of lightweight structural material
JPH04281054A (en) * 1991-03-08 1992-10-06 Asahi Chem Ind Co Ltd Nonwoven fabric
WO2001057301A1 (en) * 2000-02-03 2001-08-09 Sai Automotive Sal Gmbh Acoustically effective fibrous material
DE102005044504A1 (en) 2005-09-16 2007-03-29 BLüCHER GMBH Functional textile material loaded with active ingredient-containing microcapsules and its use
DE102008057058A1 (en) 2008-11-13 2010-05-27 Eswegee Vliesstoff Gmbh Manufacturing fabric combining lower density with increased stability, for noise protection or composite reinforcement, treats fleece in bath containing expansible microspheres

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT51904B (en) 1909-04-30 1912-01-25 Willy Anders Device to indicate the direction of roads, footpaths and dirt roads.
NL8500242A (en) * 1985-01-29 1986-08-18 Firet Bv METHOD FOR MANUFACTURING A FIBER FLUSH INCLUDING MICROBOLLES.
JP2939827B2 (en) * 1990-10-04 1999-08-25 日本バイリーン株式会社 Nonwoven fabric interior material and method for producing the same
US6497787B1 (en) 2000-04-18 2002-12-24 Owens-Corning Veil Netherlands B.V. Process of manufacturing a wet-laid veil

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676288A (en) 1970-05-04 1972-07-11 Kendall & Co Low-density bonded nonwoven fabrics and process therefor
GB1427647A (en) * 1973-07-20 1976-03-10 Firet Bv Process for producing fibrous fabrics for use in fibre-reinforced plastics
DE3412660A1 (en) 1984-04-02 1985-10-10 Günter H. 1000 Berlin Kiss METHOD FOR THE PRODUCTION OF MOLDED PARTS FROM FIBROUS MATERIAL AND FIBER MAT FOR THE PRODUCTION OF MOLDED PARTS
JPH0482950A (en) * 1990-07-19 1992-03-16 Sekisui Chem Co Ltd Production of lightweight structural material
JPH04281054A (en) * 1991-03-08 1992-10-06 Asahi Chem Ind Co Ltd Nonwoven fabric
WO2001057301A1 (en) * 2000-02-03 2001-08-09 Sai Automotive Sal Gmbh Acoustically effective fibrous material
DE102005044504A1 (en) 2005-09-16 2007-03-29 BLüCHER GMBH Functional textile material loaded with active ingredient-containing microcapsules and its use
DE102008057058A1 (en) 2008-11-13 2010-05-27 Eswegee Vliesstoff Gmbh Manufacturing fabric combining lower density with increased stability, for noise protection or composite reinforcement, treats fleece in bath containing expansible microspheres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 1992-352308, XP002663171, NAKAJIAMA HISASHI: "Production of lightweight structural material" *

Also Published As

Publication number Publication date
DK2444537T3 (en) 2014-01-27
PT2444537E (en) 2014-01-03
DE102010047533A1 (en) 2012-03-15
ES2444143T3 (en) 2014-02-24
PL2444537T3 (en) 2014-04-30
DE202010017776U1 (en) 2012-08-30
EP2444537B1 (en) 2013-11-13

Similar Documents

Publication Publication Date Title
DE19821532A1 (en) Lower cost, heat and noise absorbing shroud, manufacturing method and use of shroud in an engine vehicle compartment
DE10039982A1 (en) Adhesive tapes with a textile backing for wrapping elongated goods, such as, in particular, cable sets
DE2264808A1 (en) FABRIC WITH GOOD ACOUSTIC INSULATION PROPERTIES
EP2444537B1 (en) Non-woven fabric for acoustic applications with increased sound absorption characteristics
DE1200458B (en) Vibration-absorbing materials with a wide temperature range and high effectiveness made from mixtures of high-polymer materials with external plasticizers
DE10143167A1 (en) Heat-insulating and sound-absorbing lining for engine compartment of motor vehicles, has microperforated heat reflector in contact with polyurethane foam layer on engine side and cover layer facing away from engine side
WO2018115062A1 (en) Adhesive tape having flame protection properties
DE10001778A1 (en) Laminar material, e.g. for lining walls and ceilings
DE102011005162A1 (en) Adhesive tape for cable bandaging
WO2004002780A1 (en) Soundproofing floor covering and method for the production thereof
DE19755070C2 (en) Insulating material with a layered structure and process for its production
EP0752458B1 (en) Process for flame-proofing treatment of textile sheet materials and products treated by such process
DE102007037137B4 (en) Ventilation or duct
DE102008057058B4 (en) A process for the production of a nonwoven fabric with low density and increased stability, nonwoven produced by this process and uses of the nonwoven fabric
DE60024205T2 (en) Coated mineral wool product and method for its production
DE202012104480U1 (en) Wood veneer and veneered building board
EP3003707B1 (en) Acoustic module
DE10129858A1 (en) Surface coating of acoustically effective foam materials
DE202013105547U1 (en) protective cover
KR102155876B1 (en) Manufacturing method of flame retardant sheet for construction and automobile interior material and its flame retardant sheet
KR102188309B1 (en) Manufacturing method of laminated interior material for construction and automobile and its laminated interior material
KR102155878B1 (en) Manufacturing method of flame retardant sheet for construction and automobile interior material and its flame retardant sheet
CA2652282A1 (en) Fiber-containing article and method of manufacture
DE102023125620A1 (en) Joint tape for processing in a building material surface
DE102012108258A1 (en) Method for producing a flat-panel loudspeaker

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

17P Request for examination filed

Effective date: 20120703

17Q First examination report despatched

Effective date: 20121213

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130430

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 640631

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20131226

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011001601

Country of ref document: DE

Effective date: 20140109

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: REUTELER AND CIE S.A., CH

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20140123

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2444143

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20140224

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: HR

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: 20131113

Ref country code: NO

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: 20140213

Ref country code: IS

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: 20140313

Ref country code: LT

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: 20131113

Ref country code: FI

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: 20131113

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

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

Ref country code: CY

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: 20131113

Ref country code: LV

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: 20131113

Ref country code: RS

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: 20131113

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

Ref country code: EE

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: 20131113

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011001601

Country of ref document: DE

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

Ref country code: SK

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: 20131113

Ref country code: RO

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: 20131113

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

Effective date: 20140814

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011001601

Country of ref document: DE

Effective date: 20140814

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

Ref country code: SI

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: 20131113

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20140930

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

Ref country code: CZ

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

Effective date: 20140907

Ref country code: LU

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: 20140907

Ref country code: MC

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: 20131113

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Ref country code: SE

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

Effective date: 20140908

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

Ref country code: PT

Ref legal event code: MM4A

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

Effective date: 20150609

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150529

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

Ref country code: NL

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

Effective date: 20150401

Ref country code: BE

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

Effective date: 20140930

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

Ref country code: PT

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

Effective date: 20150609

Ref country code: LI

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

Effective date: 20140930

Ref country code: CH

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

Effective date: 20140930

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

Ref country code: FR

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

Effective date: 20140930

Ref country code: IE

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

Effective date: 20140907

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20151026

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

Ref country code: DK

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

Effective date: 20140930

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

Ref country code: GB

Payment date: 20150930

Year of fee payment: 5

REG Reference to a national code

Ref country code: PL

Ref legal event code: LAPE

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

Ref country code: IT

Payment date: 20150925

Year of fee payment: 5

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

Ref country code: ES

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

Effective date: 20140908

Ref country code: PL

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

Effective date: 20140907

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

Ref country code: SM

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: 20131113

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

Ref country code: BG

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: 20131113

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: 20140214

Ref country code: MT

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: 20131113

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

Ref country code: TR

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: 20131113

Ref country code: HU

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

Effective date: 20110907

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160907

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

Ref country code: GB

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

Effective date: 20160907

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

Effective date: 20160907

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 640631

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160907

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

Ref country code: AT

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

Effective date: 20160907

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

Ref country code: MK

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: 20131113

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

Ref country code: AL

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: 20131113

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

Ref country code: DE

Payment date: 20230929

Year of fee payment: 13