EP1106743A2 - Procédé et dispositif de fabrication d'une bande d'isolation fibreuse - Google Patents

Procédé et dispositif de fabrication d'une bande d'isolation fibreuse Download PDF

Info

Publication number
EP1106743A2
EP1106743A2 EP00710034A EP00710034A EP1106743A2 EP 1106743 A2 EP1106743 A2 EP 1106743A2 EP 00710034 A EP00710034 A EP 00710034A EP 00710034 A EP00710034 A EP 00710034A EP 1106743 A2 EP1106743 A2 EP 1106743A2
Authority
EP
European Patent Office
Prior art keywords
fleece
partial webs
cover layer
secondary fleece
hardening furnace
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
EP00710034A
Other languages
German (de)
English (en)
Other versions
EP1106743A3 (fr
EP1106743B1 (fr
Inventor
Gerd-Rüdiger Dr. Klose
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.)
Deutsche Rockwool Mineralwoll GmbH and Co OHG
Original Assignee
Deutsche Rockwool Mineralwoll GmbH and Co OHG
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
Priority claimed from DE19958973A external-priority patent/DE19958973C2/de
Application filed by Deutsche Rockwool Mineralwoll GmbH and Co OHG filed Critical Deutsche Rockwool Mineralwoll GmbH and Co OHG
Priority to EP00710034A priority Critical patent/EP1106743B1/fr
Publication of EP1106743A2 publication Critical patent/EP1106743A2/fr
Publication of EP1106743A3 publication Critical patent/EP1106743A3/fr
Application granted granted Critical
Publication of EP1106743B1 publication Critical patent/EP1106743B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4234—Metal fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4242—Carbon fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • 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
    • D04H13/00—Other non-woven fabrics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E04B1/7662—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7683—Fibrous blankets or panels characterised by the orientation of the fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7687—Crumble resistant fibrous blankets or panels using adhesives or meltable fibres

Definitions

  • the invention relates to a method for producing a particular one Insulation panels made of mineral fibers with essentially divisible fiber insulation web mineral fibers oriented at right angles to their large surfaces, in which the mineral fibers are withdrawn from a collecting chamber and placed on a Conveyor belt as a primary fleece with essentially parallel to the large surfaces aligned mineral fibers are stored.
  • the invention further relates to a device for performing the method with a conveyor belt for conveying a primary fleece made of mineral fibers from a collection chamber to one Shuttle station.
  • Mineral wool insulation materials consist of glassy solidified fibers, which are used to preserve the elastic, resilient properties, but also to be classified as non-combustible insulation materials, with only less than 8% by mass, with mineral wool insulation materials made of stone wool with approx. 2 to 4% by mass of binders, especially phenol-formaldehyde-urea resins. Inorganic binders such as organic silicic acid compounds that react via sol-gel processes are also used. Flexible, compressible mineral wool insulation materials made from glass wool have bulk densities of less than 30 kg / m 3 . Comparable mineral wool insulation materials made of rock wool, which contain not inconsiderable proportions of non-fibrous components, are manufactured with bulk densities between approx. 23 to 45 kg / m 3 .
  • mineral wool insulation materials which can be subjected to mechanical loads are known, for example for insulating flat roof constructions, which have bulk densities of greater than 130 kg / m 3 . Insulation materials of this type can also be used as plaster base boards in composite thermal insulation systems.
  • the mechanical and thermal protection properties of the mineral wool insulation materials include depending on the orientation of the individual fibers. Are the fibers across the large surfaces of the mineral wool insulation aligned, the insulation is compressible. At the same time the insulation material also has low transverse tensile strength and thermal conductivity across the fiber orientation. Mineral wool insulation materials with great strength values to manufacture, it is necessary to predominantly the individual fibers to be aligned at right angles to the large surfaces. This is usually a fiber mass flow with its fibers lying horizontally and inclined flat through a continuous horizontal compression in one area unfolded between 1 to 2.5 and 1 to 3 with vertical compression at the same time.
  • the primary fleece points along the slideways reduced adhesion between the fibers or fiber layers. This Areas of reduced adhesion are preferred along the original surfaces the primary fleece arranged. These are fiber layers that subtracted from a collecting chamber in thin material and to larger ones Stacks are continuously placed on top of each other. During transport and that Laying the primary fleece layers on top of each other will result in the fibers near the surface Zones of the primary fleece reoriented.
  • the primary fleece layers accumulate on these surfaces Low-fiber flakes and recycled fibers form a composite weaken the fibers in this area from the outset. These weak areas are particularly effective if the insulation materials are repeated or continuously exposed to hydromechanical loads during use are.
  • the unfolding or folding of the fibers using the described method is in the Height limited, because with increasing thickness and increasing forces Forming mutual effects, such as parallel bearings to the large surfaces. Decreases with increasing material thickness also the uniformity of the structure.
  • the method described above is improved by that the fiber mass flow is guided through a system of deflection rollers is, whereby the individual fibers are stored horizontally in the deflection areas become.
  • This additional process step affects the transverse tensile strength of the primary fleece.
  • the suspended primary fleece is called a secondary fleece referred to which to increase its transverse tensile strength is processed that in the area of the two large surfaces of the Secondary fleece of horizontally stored fibers after the binder has hardened be separated into an area in which almost exclusively there are fibers arranged at right angles to the large surfaces.
  • Insulation materials with a low material thickness of, for example, 100 mm must be up to 20% of the original volume can be removed in this way to create a mineral wool insulation product to achieve that mostly perpendicular to the big ones Has surface-oriented single fibers.
  • the endless fiber mass flow is before Hardening furnace cut into individual sections, which sections then around Rotated 90 °, compressed horizontally and compressed vertically by 20%. With this method too, the fibers are below the large surfaces predominantly stored horizontally, so that these areas can be reached optimal transverse tensile strength must be removed.
  • Mineral wool insulation materials manufactured according to this process have a maximum Material thickness of approx. 220 mm. Since in all process variants Unfolding in the direction of production is the bending, tensile and shear strength across the direction of production many times higher than in production and Direction of folding. In order to achieve high transverse tensile strengths with possibly even reduced ones To be able to achieve raw densities, insulation boards are made from such produced mineral wool insulation materials parallel to the production and unfolding direction cut into slices according to the desired insulation thickness. This process is relatively complex since it is not based on the actual one Production line can take place, but mostly using large format Sheets as primary material on separate cutting and deflection systems must be carried out.
  • Lamellar panels produced in this way which are often used as plaster base panels in thermal insulation composite systems or as a load-bearing insulation layer in sandwich constructions with sheet metal or lightweight wood wool panels as top layers, are used to achieve high shear and connection stiffness as well as high transverse tensile strength of particularly intensive folding Subjected to fiber layers.
  • the bulk densities of such lamella plates are in a range between approximately 70 to 105 kg / m 3 .
  • the invention has for its object to provide a generic method or a generic device for performing the method in such a way that fiber insulation webs with an intensive folding of the mineral fibers can be produced in a simple and inexpensive manner, the mechanical properties in the two main axes of the horizontal plane are the same or almost the same.
  • the solution to this problem in a method according to the invention provides that the primary nonwoven is divided into at least two, preferably several, in particular the same partial webs by cuts made at right angles to the large surfaces, that the partial webs are then rotated by 90 ° about their longitudinal axis and that the partial webs are leveled and joined to form a secondary fleece.
  • a conventional Primary fleece produced in this way in several on a conveyor belt side by side lying partial webs is divided, which partial webs subsequently by 90 ° their longitudinal axis are rotated, whereupon the partial webs become a secondary fleece be leveled up. It can be provided here that all the partial webs together to be leveled to a secondary fleece or that individual partial webs leveled and the leveled partial webs to a secondary fleece be put together.
  • the partial webs of Primary fleece one above the other before rotating about its longitudinal axis relative to the conveying plane to be ordered.
  • the partial webs are their rotation around their longitudinal axis and together a pendulum device fed, which pendulates the stack of partial webs to the primary fleece.
  • the oscillation takes place in the horizontal direction in the conveying direction of the secondary fleece receiving conveyor belt.
  • the partial webs and / or the secondary fleece are preferably during and / or compressed after swinging up.
  • the compression takes place in two directions substantially perpendicular to each other.
  • the secondary fleece or the partial webs are made by laterally arranged pressure bands compressed to the desired width.
  • the compression is preferably carried out continuously to produce a uniformly compressed product.
  • the secondary fleece is then fed to a hardening furnace to harden the binder.
  • the cover layer can be from the secondary fleece either before or after the hardening furnace be separated.
  • the mineral fibers are parallel to the large surfaces. If the top layer is separated after the hardening furnace, so this results in a marketable product with an extremely laminar structure, with a corresponding bulk density, for example for impact sound insulation can be used under floating screed.
  • the cover layer is separated before the secondary fleece is fed to a hardening furnace.
  • the cover layer has uncured binder, so that the top layer after separation still with regard to its material properties can be changed.
  • the application-specific required density of the top layer by compression of the top layer should be set if the binder has not hardened.
  • the cover layer only after the passage the secondary fleece is separated by the hardening furnace.
  • the inventive method has the advantage that over several pendulums several layers of fleece are guided to each other, for example a fiber insulation web to produce, which is constructed like a sandwich.
  • a fiber insulation web to produce which is constructed like a sandwich.
  • the primary nonwoven with one or more nonwoven layers, in particular different properties is put together. It can therefore, for example Fleece layers with higher and / or lower bulk density or with a higher or lower degree of compression, the joining of the different layers of fleece in front of the hardening furnace takes place so that the connection between the fleece layers in particular through the not yet hardened binder.
  • the primary fleece before or during the swinging up.
  • the surfaces of the Partial webs are impregnated with binders before the partial webs are brought together become.
  • a further development of the method according to the invention provides that between adjacent sub-webs reinforcing fabrics and / or nonwovens made of, for example Glass, carbon, metal, temperature-resistant plastic and / or Natural fibers are arranged.
  • Such fabrics can be used as reinforcement Fiber insulation sheets serve and increase the resilience of this fiber insulation sheet manufactured insulation boards.
  • the secondary fleece is preferably at right angles before and / or in the hardening furnace compresses its large surfaces. In this way, a fiber insulation web produced with defined dimensions, without the risk of bulging the fiber mass in the hardening furnace.
  • Hot air is preferably both perpendicular to the large ones in the hardening furnace Surfaces, as well as passed through the long sides of the secondary fleece a higher efficiency of the hardening furnace and thus an improved hardening to achieve the binder.
  • the secondary fleece is also up to After the binder has cured, it is clamped on all sides.
  • the secondary fleece becomes parallel to it large surfaces cut into individual sections.
  • This approach has the advantage that a downstream dryer for the fiber insulation web in compact design can be designed.
  • the individual sections are stacked next to and / or one above the other and fed to the dryer.
  • Of course can also pass through the fiber insulation web at this time cuts into individual panels perpendicular to their large surfaces cuboidal configuration can be divided.
  • the above-mentioned object of the invention is used in a generic device for performing the above Process solved in that the conveyor belt has a cutting device with which the primary fleece in side by side on the conveyor belt lying partial webs is divisible and that the cutting device has a rotating device is connected with which the individual partial webs relative to their longitudinal axis can be rotated by 90 ° before entering the shuttle station to form a secondary fleece break in.
  • the cutting device has one corresponding to the number n of the required partial webs Number of n-1 saws, especially as band or circular saws are trained.
  • a shuttle station are preferably arranged in pairs or Roller tracks are provided for all partial tracks.
  • the shuttle station as a pair of pressure tapes or roller conveyors for each form a partial web, so that the device according to the invention a the number of partial webs corresponding to the number of partial webs Has printing tapes or roller conveyors.
  • the shuttle station has a hardening furnace with at least two Print tapes is connected on the large surfaces of the secondary fleece rest and through which a heated gas, in particular hot air becomes.
  • the pressure bands on the long sides are adjustable relative to each other arranged in the hardening furnace so that they are attached to secondary webs of different widths can be adjusted or, if set appropriately, an intended one Transfer compression to the secondary fleece.
  • the pressure tapes on the long sides of the secondary fleece are permeable to air formed and in particular have openings through which heated Gas, especially hot air, is conducible to additional thermal energy insert the secondary fleece to harden the binder.
  • the impregnated with a binder in a collection chamber collected primary fleece depending on the width and the thickness in divided two or more partial webs.
  • the partial webs are then overlapped and individually deflected by 90 ° around their longitudinal axis and thus guided on one side onto a collective conveyor belt.
  • the one above the other arranged partial webs are then fed to a pendulum, which consists of two parallel conveyor belts, around a common oscillate vertical axis, so that the partial webs meandering together be placed on the collective conveyor belt.
  • the compression can also be achieved by stroke-like movement of these construction elements be carried out.
  • the direction of movement of the printing tapes or Pressure rolls are preferably carried out at right angles to the conveying direction of the secondary fleece. But there is also the possibility of compression under one execute any angle in the direction of the conveying direction.
  • the opposite conveyor belts or transport rollers are adjustable relative to each other, a compression of the partial webs combined with an intensive unfolding or folding of the fibers.
  • the compression and folding of the partial webs can be individual for the individual partial webs be made so that when merging the individual partial webs a sandwich element with sections of different characteristics can be manufactured. For example, it is used in the manufacture of wide fiber insulation webs sensible to densify the inner partial webs and to fold as the outer so as not to be undesirable due to excessive side forces different densification of the entire fiber mass or the fiber insulation web across the width.
  • the conveyor belts or transport rollers can increase the large surfaces with trapezoidal surfaces, for example in the shape of sheep's feet, be trained.
  • the large surfaces of the partial webs can also be used be impregnated with binders to the partial webs after merging adhere better to each other, taking the additional binder is finally cured in the downstream hardening furnace and becomes a contributes to further improved adhesion of the partial webs to one another.
  • reinforcing elements have a particular effect on the transverse tensile strength of the insulation boards and are capable of the inevitable time-dependent, through hygrothermal and / or hydromechanical Strength-related losses in the strength of such insulation materials not only increase compensate, but also lead to more security in the use of such Insulation materials.
  • the collective conveyor belt can be used to optimally control the compression and folding from several individual conveyor belts or from roller sets or combinations of both construction elements exist, with decreasing Operate speed and thus a compression of the secondary fleece effect in the direction of transport. Furthermore, in the direction of transport, i.e. across the width of the production line several narrow strips or Roll sets can be arranged distributed across the width of the production line different speeds are driven. This ensures that the compression and folding also in the central areas of the secondary fleece can be influenced.
  • a lower conveyor belt supplemented by a mirror-image arranged upper pressure band, which on the fiber mass to be folded or compacted acts.
  • This print tape has primarily the task of favoring the folding, being too large Compression in the horizontal direction should be excluded as far as possible.
  • the folding effect in the direction of transport can be the lower and upper sub-bands with projections protruding from their surface be formed, which engage in the fiber mass, in particular the secondary fleece and move the fibers relative to each other.
  • the secondary fleece can have a material thickness between 200 and 2000 mm with a bulk density of approx. 40 to 300 kg / m 3 .
  • the secondary nonwoven has fibers in the area below its large surfaces at a certain depth which are not essentially perpendicular to the large surfaces. Since a fiber insulation web is to be produced which has mineral fibers oriented almost exclusively at right angles to the large surfaces, these areas are subsequently separated from the secondary fleece by horizontally guided cutting tools.
  • the separated fibers can be fed to an internal recycling process in a known manner and melted again. However, there is also the possibility that the separated fiber layers are fed back to the primary nonwoven directly or to the fiber mass flow in the collecting chamber after appropriate loosening.
  • the secondary fleece is held together mainly by the lateral pressure tapes is the possible reorientation of the mineral fibers due to its own weight low in the support area of the fiber web.
  • An upper print band is created here only so much pressure that a bulging of the secondary fleece by the Pressure of the side profile strips is prevented.
  • Such a hardening furnace usually consists of two stable ones arranged one above the other Pressure tapes through which hot air is drawn.
  • the secondary fleece remains approx. 2 to 15 minutes, preferably less than 10 minutes in the curing oven so that relatively hot air with temperatures of approx. 250 to 320 ° C can be used in order to achieve sufficient hardening of the binder.
  • relatively hot air with temperatures of approx. 250 to 320 ° C can be used in order to achieve sufficient hardening of the binder.
  • the oils, oil emulsions added to make the fibers hydrophobic or the like is not yet substantially volatile.
  • the secondary nonwovens presented with the method according to the invention have a width between 500 and 2400 mm width and material thicknesses up to 2000 mm.
  • the guidance of the hot air through the secondary fleece naturally occurs the shortest route, i.e. with the shown variations between thicknesses and Widths both from top to bottom or vice versa and in sections Reversal.
  • side pressure tapes which are also partially air-permeable, hot air can also be added continuously sucked or pressed through the fiber mass from top to bottom and additionally can be entered or subtracted from the side pressure tapes.
  • binders such as phenolic, Formaldehyde, urea resin mixtures or the like together with the existing moisture in the order of 3 to 10% by mass within of about 2 to 8 minutes is needed, taking the secondary fleece to a temperature from about 120 to 170 ° C is heated.
  • binders like silica dispersed as nanoparticles, which harden through sol-gel processes, Appropriate changes in the heating up and holding times must be provided.
  • the structure of the secondary fleece is fixed so that the endless secondary fleece can be transported freely can.
  • the secondary fleece is now integrated into one to avoid energy losses heated and adequately thermally insulated drying tunnel in which the Evaporate water present in inclusions or the resin enriched there can.
  • a drying time of approx. 40 to 80 minutes At a temperature of approx. 150 ° C a drying time of approx. 40 to 80 minutes. By pre-drying the air in the drying tunnel the drying process is effectively supported at less than 30% relative humidity or abbreviated if necessary.
  • the fiber mass After leaving the drying tunnel, the fiber mass is exposed to room air cooled down.
  • the energy content of the exhaust air can heat the dryer air be used.
  • the endless secondary fleece is now cut open horizontally or divided into individual sections, which then form insulation boards.
  • the secondary fleece can be cured of the binder can be divided into sections in the hardening furnace. These block-like Sections are stacked next to and / or on top of each other. The through this procedure Any energy losses that have occurred must be replaced by a corresponding Increasing the temperature, but especially due to a longer residence time in the dryer can be compensated.
  • the secondary fleece conventionally cooled down by room air after the binder has hardened and horizontally in insulation boards with the desired dimensions and split vertically.
  • These insulation boards are then individually or passed in stacks over an air-permeable belt and using hot air heated to about 120 to 170 ° C, preferably 150 to 160 ° C and then piled up to larger units to avoid energy losses and after-dried according to the process technology described.
  • Figure 1 shows a plan view of a portion of a device for producing a Fiber insulation web that can be split into individual insulation panels made of mineral fibers 1.
  • a primary fleece 2 is fed to a cutting device 3, which Cutting device 3 has three band saws 4, which the primary fleece 2 in four lying side by side on a conveyor, not shown Divides partial webs 5.
  • the partial webs 5 are then guided one above the other and then in an area 6 rotated by 90 ° about its longitudinal axis.
  • the meandering partial webs 5 of the primary fleece 2 are then laterally arranged pressure tapes 10 supplied with their the pendulum device 7 opposite ends are aligned towards each other. Between the sub-webs 5 of the primary fleece 2 are compressed in the printing bands 10. The partial webs 5 of the primary fleece 2 form a secondary fleece at this time 11.
  • the secondary fleece 11 is essentially characterized in that its individual fibers predominantly at right angles to the large surfaces of the secondary fleece 11 are aligned.
  • the mineral fibers in the primary fleece 2 an orientation essentially parallel to the large ones Have surfaces of the primary fleece 2. Only in the immediate area of the large surfaces are the individual mineral fibers of the secondary fleece 11 by the compression and the unfolding of the primary fleece 2 or secondary fleece 11 substantially parallel to the large surfaces of the secondary fleece 11 aligned.
  • the secondary fleece 11 is connected to the printing tapes 10 further printing tapes 12 supplied according to Figure 3, which on the large surfaces of the secondary fleece 11 act.
  • a further cutting device 14 is arranged, which consists of two saws 15, which saws 15 horizontally and parallel to the large surfaces of the secondary fleece 11 are aligned so that 15 top layers 16 by means of these saws in the area of both large surfaces of the secondary nonwoven 11 can.
  • the cover layers 16 comprise the area of the secondary fleece 11, the one Grain course arranged parallel to the large surfaces of the secondary fleece 11 Has mineral fibers.
  • the hardening furnace 13 thus becomes a secondary fleece 11 with almost exclusively at right angles to the large surfaces of the Secondary fleece 11 fed fiber arrangement.
  • the hardening furnace 13 in turn consists of two acting on the large surfaces Conveyor belts 17 which are air-permeable so that hot air in Diffuse in the direction of the arrows 18 shown in FIG. 3 through the secondary fleece 11 can.
  • the secondary fleece 11 does not become one after leaving the hardening furnace 13 Dryer shown in detail, then after drying to be cut into individual insulation boards.
  • FIG. 2 An alternative embodiment of the section according to FIG. 1 is shown in FIG. 2.
  • the partial webs are individual pendulum devices 19 supplied, each consisting of two roller tracks 20, which a distance from each other that decreases in the conveying direction according to arrow 21 to have.
  • the individually suspended partial webs 5 are then together fed two further roller conveyors 100, between which the individually suspended Partial webs 5 are interconnected and compressed.
  • the Roller tracks 100 also have a decreasing in the conveying direction according to arrow 21 Distance from each other and perform the same task as that Printing tapes 10 of the embodiment according to FIG. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
EP00710034A 1999-12-08 2000-11-20 Procédé et dispositif de fabrication d'une bande d'isolation fibreuse Expired - Lifetime EP1106743B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00710034A EP1106743B1 (fr) 1999-12-08 2000-11-20 Procédé et dispositif de fabrication d'une bande d'isolation fibreuse

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19958973 1999-12-08
DE19958973A DE19958973C2 (de) 1999-12-08 1999-12-08 Verfahren und Vorrichtung zur Herstellung einer Faserdämmstoffbahn
EP00123506 2000-10-27
EP00123506 2000-10-27
EP00710034A EP1106743B1 (fr) 1999-12-08 2000-11-20 Procédé et dispositif de fabrication d'une bande d'isolation fibreuse

Publications (3)

Publication Number Publication Date
EP1106743A2 true EP1106743A2 (fr) 2001-06-13
EP1106743A3 EP1106743A3 (fr) 2003-01-15
EP1106743B1 EP1106743B1 (fr) 2005-04-06

Family

ID=34317033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00710034A Expired - Lifetime EP1106743B1 (fr) 1999-12-08 2000-11-20 Procédé et dispositif de fabrication d'une bande d'isolation fibreuse

Country Status (1)

Country Link
EP (1) EP1106743B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616985A1 (fr) * 2004-07-09 2006-01-18 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Fabrication d' une nappe isolante en fibres minérales dont les fibres sont essentiellement droites
WO2006042720A3 (fr) * 2004-10-15 2007-02-15 Rockwool Mineralwolle Toit de batiment, structure a couche d'isolation et element d'isolation a fibres minerales destine a un toit de batiment
DE102012018481A1 (de) * 2012-09-19 2014-03-20 Sandler Ag Dämmstoff
WO2018156691A1 (fr) * 2017-02-23 2018-08-30 Zephyros, Inc. Structure de fibres non-tissées destinée à être utilisée comme isolant

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1136806A (en) * 1965-05-17 1968-12-18 Du Pont Producing fibrous sheet products
FR2172361A1 (fr) * 1972-02-17 1973-09-28 Rockwool Ab
DE2501045A1 (de) * 1975-01-13 1976-07-15 Ihlefeld Karl Helmut Vorrichtung zum schneiden von faserlamellen aus mineralwolle
EP0277500A2 (fr) * 1987-01-21 1988-08-10 Deutsche Rockwool Mineralwoll-GmbH Procédé pour la fabrication en continu d'une feuille de matériau fibreux isolant, et appareil pour exécuter ce procédé
WO1992010602A1 (fr) * 1990-12-07 1992-06-25 Rockwool International A/S Procede de fabrication de panneaux isolants composes d'elements en fibre minerale en forme de baguettes et reciproquement relies
WO1995028533A1 (fr) * 1994-04-13 1995-10-26 Rockwool International A/S Element d'isolation et son procede de fabrication
DE4432866C1 (de) * 1994-09-15 1996-02-01 Rockwool Mineralwolle Verfahren zur Herstellung einer Mineralfaserlamellenbahn und Vorrichtung zur Durchführung des Verfahrens
EP0831162A1 (fr) * 1996-09-04 1998-03-25 Shinih Enterprise Co., Ltd. Procédé pour la production d'un garnissage fibreux de densité variable, ondulé, lié à une résine ou thermiquement et la structure produite selon ledit procédé

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1136806A (en) * 1965-05-17 1968-12-18 Du Pont Producing fibrous sheet products
FR2172361A1 (fr) * 1972-02-17 1973-09-28 Rockwool Ab
DE2501045A1 (de) * 1975-01-13 1976-07-15 Ihlefeld Karl Helmut Vorrichtung zum schneiden von faserlamellen aus mineralwolle
EP0277500A2 (fr) * 1987-01-21 1988-08-10 Deutsche Rockwool Mineralwoll-GmbH Procédé pour la fabrication en continu d'une feuille de matériau fibreux isolant, et appareil pour exécuter ce procédé
WO1992010602A1 (fr) * 1990-12-07 1992-06-25 Rockwool International A/S Procede de fabrication de panneaux isolants composes d'elements en fibre minerale en forme de baguettes et reciproquement relies
WO1995028533A1 (fr) * 1994-04-13 1995-10-26 Rockwool International A/S Element d'isolation et son procede de fabrication
DE4432866C1 (de) * 1994-09-15 1996-02-01 Rockwool Mineralwolle Verfahren zur Herstellung einer Mineralfaserlamellenbahn und Vorrichtung zur Durchführung des Verfahrens
EP0831162A1 (fr) * 1996-09-04 1998-03-25 Shinih Enterprise Co., Ltd. Procédé pour la production d'un garnissage fibreux de densité variable, ondulé, lié à une résine ou thermiquement et la structure produite selon ledit procédé

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616985A1 (fr) * 2004-07-09 2006-01-18 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Fabrication d' une nappe isolante en fibres minérales dont les fibres sont essentiellement droites
WO2006042720A3 (fr) * 2004-10-15 2007-02-15 Rockwool Mineralwolle Toit de batiment, structure a couche d'isolation et element d'isolation a fibres minerales destine a un toit de batiment
DE102012018481A1 (de) * 2012-09-19 2014-03-20 Sandler Ag Dämmstoff
WO2018156691A1 (fr) * 2017-02-23 2018-08-30 Zephyros, Inc. Structure de fibres non-tissées destinée à être utilisée comme isolant

Also Published As

Publication number Publication date
EP1106743A3 (fr) 2003-01-15
EP1106743B1 (fr) 2005-04-06

Similar Documents

Publication Publication Date Title
DE3701592C2 (fr)
DE69425051T3 (de) Verfahren zur herstellung einer isolierenden mineralfaserbahn
DE69530181T3 (de) Verfahren zur Herstellung einer Mineralfaserbahn
DE69909454T2 (de) Verfahren und vorrichtung zur herstellung eines mineralfaserprodukts.
EP1616985A1 (fr) Fabrication d' une nappe isolante en fibres minérales dont les fibres sont essentiellement droites
EP0678137B1 (fr) Procede et installation de production d'une bande isolante en fibres minerales
EP1182177B2 (fr) Elément d'isolation , Procédé et installation pour la fabrication de matériaux isolants ainsi que nappe d'enveloppe en fibres minérales
EP1708876B1 (fr) Procede de fabrication d'une bande de materiau isolant a partir de fibres minerales et bande de materiau isolant ainsi obtenue
DE2307577B2 (de) Verfahren zum herstellen von ebenen mineralwollplatten sowie anlage zur durchfuehrung des verfahrens
EP1559845B1 (fr) Procédé de fabrication d' une nappe isolante en fibres minérales et nappe isolante
EP1106743B1 (fr) Procédé et dispositif de fabrication d'une bande d'isolation fibreuse
EP1561847B1 (fr) Procédé et dispositif pour la fabrication de matériaux isolants en feuilles ou plaques à base de fibres minérales
DE19958973C2 (de) Verfahren und Vorrichtung zur Herstellung einer Faserdämmstoffbahn
DE102004047193A1 (de) Verfahren zur Herstellung einer Dämmstoffbahn aus Mineralfasern sowie Dämmstoffbahn
DE10057431C2 (de) Verwendung von Deckschichten einer Faserdämmstoffbahn
DE2930940A1 (de) Einblasisoliermaterial und verfahren zu dessen herstellung
AT516749B1 (de) Verfahren und Vorrichtung zur Herstellung von Dämmstoffelementen aus Mineralfasern
EP3276064B1 (fr) Noyau sandwich comprenant un matériau à base de fibres et procédé de fabrication ainsi que panneau sandwich
DE10057430A1 (de) Verfahren zur Herstellung einer Faserdämmstoffbahn
DE4432866C1 (de) Verfahren zur Herstellung einer Mineralfaserlamellenbahn und Vorrichtung zur Durchführung des Verfahrens
DE102005002649A1 (de) Verfahren und Vorrichtung zur Herstellung von bahnen-oder plattenförmigen Dämmstoffen aus Mineralfasern
DE60038566T2 (de) Glasfaserbahnrolle und Herstellungsverfahren von Rolle und Glasfaserbahn
WO2009043492A2 (fr) Procédé et dispositif pour fabriquer des éléments de matériau isolant
CH692114A5 (de) Vorrichtung und Verfahren zur Herstellung einer Mineralfaserplatte.
EP1743970B1 (fr) produit parallélépipèdique à base de fibres minérales

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: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DEUTSCHE ROCKWOOL MINERALWOLL GMBH & CO. OHG

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7E 04B 1/78 A, 7D 04H 1/70 B, 7D 04H 1/74 B, 7D 01G 25/00 B

17P Request for examination filed

Effective date: 20021219

AKX Designation fees paid

Designated state(s): AT DE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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): AT DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50009978

Country of ref document: DE

Date of ref document: 20050512

Kind code of ref document: P

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

Ref country code: AT

Payment date: 20051111

Year of fee payment: 6

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

Ref country code: DE

Payment date: 20051117

Year of fee payment: 6

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: 20060110

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: 20061120

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

Ref country code: DE

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

Effective date: 20070601