WO1996026310A1 - A mineral wool insulation board and a method for producing the same - Google Patents

A mineral wool insulation board and a method for producing the same Download PDF

Info

Publication number
WO1996026310A1
WO1996026310A1 PCT/EP1996/000307 EP9600307W WO9626310A1 WO 1996026310 A1 WO1996026310 A1 WO 1996026310A1 EP 9600307 W EP9600307 W EP 9600307W WO 9626310 A1 WO9626310 A1 WO 9626310A1
Authority
WO
WIPO (PCT)
Prior art keywords
mineral wool
insulation board
open
pore
pressed
Prior art date
Application number
PCT/EP1996/000307
Other languages
French (fr)
Inventor
Johannes Horres
Original Assignee
Isover Saint-Gobain
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 Isover Saint-Gobain filed Critical Isover Saint-Gobain
Priority to SK1345-96A priority Critical patent/SK284242B6/en
Priority to DE69604033T priority patent/DE69604033T2/en
Priority to EP96902253A priority patent/EP0756647B1/en
Priority to HU9602905A priority patent/HU219472B/en
Priority to PL96316944A priority patent/PL181096B1/en
Priority to DK96902253T priority patent/DK0756647T3/en
Publication of WO1996026310A1 publication Critical patent/WO1996026310A1/en
Priority to NO964437A priority patent/NO308909B1/en
Priority to FI964215A priority patent/FI118266B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • 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
    • D04H13/00—Other non-woven fabrics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
    • E04C2/18—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like with binding wires, reinforcing bars, or the like

Definitions

  • the present invention relates to a mineral wool insula ⁇ tion board and to a method for producing the mineral wool in ⁇ sulation board according to the preambles of claims 1 and 6.
  • Such mineral wool insulation boards are used m particu ⁇ lar for thermal insulation of flat roofs, for facade facings or for lining walls and ceilings of buildings.
  • Such insula ⁇ tion boards are chiefly an integrated part of an interlinked heat system, the boards being fastened to walls, ceilings anc facades using suitable fastening elements such as dowels and the like, and a plaster system then being applied to the boards.
  • a sufficient surface stiffness of the boards is desired to facilitate their handling on the spot, but in particular also for re ⁇ ceiving the tensile and pressure loads that act on the boards due to wind suction forces on facades or due to subsequently applied plaster systems.
  • the boards are used for insulating roofs, in particular flat roofs, it is also desirable to be able to walk on the mineral wool boards, for which purpose they are designed accordingly in terms of strength and compressed accordingly to attain high surface sti fness.
  • DE-A-42 05 38U discloses a product for insulation, in particular a glass wool mat, wnich is provided witn at Also, DE-A-42 05 380 discloses a product for insulation, in particular a glass wool mat, which is provided with at least one air-permeable cover layer of porous gauze. The gauze is applied to a main surface of the mat by depositing the produced glass wool on the gauze directly in the fall shaft. The glass fibers are thereby connected with one an ⁇ other and with the porous cover layer by means of a thermo- setting binder.
  • the method and product disclosed in this document also fail to solve the abovementioned problem. The stiffness-increasing effect is limited and the cover layer can come off the glass wool mat under tensile and pressure stresses.
  • the problem of the invention is to provide with simple measures a mineral wool insulation board with high surface stiffness which can absorb comparatively high pressure and tensile forces so as to prevent for example an unbuttoning or tearing out of fastening means such as dowels and the like which are used for fastening insulation boards to walls, ceilings and facades of buildings.
  • a mineral wool insulation board is stiffened on one or both main surfaces by an open- pore, flat formation which spans the particular main surface of the board, the open-pore formation being embedded in the surface of the board with positive locking, the cavities of the open-pore formation being simultaneously backfilled by the mineral wool of the board in the near-surface areas.
  • Em ⁇ bedding the open-pore formation by pressing it into the sur ⁇ face layer of the mineral wool body produces a both positive and nonpositive compound of the open-pore formation with the mineral wool body, whereby the pressure forces acting on the mineral wool insulation board under load are distributed uni ⁇ formly over a sufficiently large surface and the embedded cross strands with a sufficient grid width to permit suitable backfilling of the grid spaces for the positive and nonposi- tive lock.
  • a suitable formation is in particular a wire net as is used for example for rabbit hutches and the like.
  • the mineral wool insulation board is obtained by pressing the stiffening material into its surface. This is preferably done during production of the mineral wool insulation boards themselves, whereby in a pre ⁇ ferred embodiment of the production method a sheet of mineral wool or several superimposed layers of mineral wool are com ⁇ pressed within a creper. This results in a gradual longitudi ⁇ nal compression which is obtained by the speed of passage through the creper being lower than the speed of preceding feed of mineral wool fiber layers, and pressure being addi ⁇ tionally exerted on an upper band and/or lower band of the creper, thereby compacting the compressed mineral wool fur ⁇ ther.
  • the stiffening material to be applied to the surface of the mineral wool body is fed to the sheet of mineral wool.
  • the stiffening material can be fed from above or from below with respect to the sheet of mineral wool. It is likewise possible to feed stiffening material to the sheet of mineral wool from both sides so that the mineral wool is sandwiched between the layers of stiffening material. Due to the compression and compacting of the sheet of mineral wool the fibers tend to escape. This escaping material passes into the spaces in the arriving stiffening material during compression or compact ⁇ ing, thereby resulting in a firm, positive and nonpositive compound between the forming mineral wool body and the stiff ⁇ ening material.
  • the inventive method for producing the min ⁇ eral wool insulation board with at least one stiffened sur ⁇ face within an already existing production step obtains a product improvement without requiring any high additional in ⁇ vestment.
  • ditional binder which in particular lowers the fire load of the final product.
  • Fig. 1 shows a schematic, perspective view of a detail of an inventive mineral wool insulation board
  • Fig. 2 shows a schematic view of the production method for the inventive mineral wool insulation board.
  • Fig. 1 shows a schematic view of a detail of inventive mineral wool insulation board 1 in the surface of which gridlike stiffening material 2 consisting of parallel longi ⁇ tudinal strands and perpendicular cross strands is embedded in uniform arrangement.
  • gridlike stiffening material 2 consisting of parallel longi ⁇ tudinal strands and perpendicular cross strands is embedded in uniform arrangement.
  • An especially suitable grid is for example one with diagonally extending strands limiting loz- enged openings therebetween.
  • the grid is embedded within the insulation board in such a way that the outer surface of the embedded grid along with the mineral wool areas backfilling the grid spaces limit the outer surface of the insulation board.
  • the longitudinal and cross strands have a thickness of about 2 mm with a board thickness of 40 mm, the distance between the cross struts being about 12 mm and that between the longitudinal struts about 20 mm.
  • Fig. 2 shows a preferred embodiment of a method for pro ⁇ ducing the inventive mineral wool body with a stiffened sur ⁇ face.
  • Mineral fibers la are fed in layers by transport bands 3 to creper 4, 4a and passed on from there to removing device or recompacting device 5 in the area of the curing furnace.
  • the speeds of the various successive steps decrease so that at least V3 > V4 holds.
  • the speed difference between V3 and V4 already obtains a compression and compacting of the min ⁇ eral fiber layers.
  • Pressure P is additionally exerted on the compressed mineral fiber layers via the upper band of creper 4a, which leads to further compacting.
  • strengthening material 2 is pacting.
  • strengthening material 2 is introduced into the creper so that mineral fibers la come to lie on this strengthening ma ⁇ terial. Due to the compacting and the additional pressure via the upper band of creper 4a the strengthening material is pressed into at least one surface of the compacted mineral fiber material and connected positively therewith. When the pressed mineral fiber material connected with the strengthen ⁇ ing material leaves the curing furnace via transport bands 5, it constitutes finished mineral wool fiber product 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Thermal Insulation (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Cell Separators (AREA)
  • Insulating Bodies (AREA)
  • Glass Compositions (AREA)

Abstract

In a mineral wool insulation board stiffened by an open-pore, flat formation, the open-pore formation is embedded in the surface of the insulation board with positive locking, the mineral wool being pressed into the cavities of the open-pore formation in the surface area of the insulation board.

Description

A mineral wool insulation board and a method for producing the same
The present invention relates to a mineral wool insula¬ tion board and to a method for producing the mineral wool in¬ sulation board according to the preambles of claims 1 and 6.
Such mineral wool insulation boards are used m particu¬ lar for thermal insulation of flat roofs, for facade facings or for lining walls and ceilings of buildings. Such insula¬ tion boards are chiefly an integrated part of an interlinked heat system, the boards being fastened to walls, ceilings anc facades using suitable fastening elements such as dowels and the like, and a plaster system then being applied to the boards. With such a use of insulation boards a sufficient surface stiffness of the boards is desired to facilitate their handling on the spot, but in particular also for re¬ ceiving the tensile and pressure loads that act on the boards due to wind suction forces on facades or due to subsequently applied plaster systems. In particular when the boards are used for insulating roofs, in particular flat roofs, it is also desirable to be able to walk on the mineral wool boards, for which purpose they are designed accordingly in terms of strength and compressed accordingly to attain high surface sti fness.
To strengthen the surface of mineral wool insulation boards it is known (DE-AS-1 186 613) to apply a cover layer consisting of preoound glass fioers to the mineral wool foun¬ dation, apply additional binding resin to the mineral wool foundation and preoound cover layer, ana guide tne formaticr- consisting cf mineral wool foundation and applied cover layer through a pressing un t. However t nas turned out tnat tnese mineral wool insulation boards do net meet today's require¬ ments for surface strength and m particular tne cover layer can easily come off. Furthermore tne hign consumption of binding resin is a disadvantage.
Also, DE-A-42 05 38U discloses a product for insulation, in particular a glass wool mat, wnich is provided witn at Also, DE-A-42 05 380 discloses a product for insulation, in particular a glass wool mat, which is provided with at least one air-permeable cover layer of porous gauze. The gauze is applied to a main surface of the mat by depositing the produced glass wool on the gauze directly in the fall shaft. The glass fibers are thereby connected with one an¬ other and with the porous cover layer by means of a thermo- setting binder. The method and product disclosed in this document also fail to solve the abovementioned problem. The stiffness-increasing effect is limited and the cover layer can come off the glass wool mat under tensile and pressure stresses.
The problem of the invention is to provide with simple measures a mineral wool insulation board with high surface stiffness which can absorb comparatively high pressure and tensile forces so as to prevent for example an unbuttoning or tearing out of fastening means such as dowels and the like which are used for fastening insulation boards to walls, ceilings and facades of buildings.
This problem is solved according to the invention by the features contained in the characterizing part of the claim, a suitable method for producing such a mineral wool insulation board being determined by the measures in the characterizing part of claim 5. Expedient developments of the invention are characterized by the features contained in the subclaims.
According to the invention a mineral wool insulation board is stiffened on one or both main surfaces by an open- pore, flat formation which spans the particular main surface of the board, the open-pore formation being embedded in the surface of the board with positive locking, the cavities of the open-pore formation being simultaneously backfilled by the mineral wool of the board in the near-surface areas. Em¬ bedding the open-pore formation by pressing it into the sur¬ face layer of the mineral wool body produces a both positive and nonpositive compound of the open-pore formation with the mineral wool body, whereby the pressure forces acting on the mineral wool insulation board under load are distributed uni¬ formly over a sufficiently large surface and the embedded cross strands with a sufficient grid width to permit suitable backfilling of the grid spaces for the positive and nonposi- tive lock. A suitable formation is in particular a wire net as is used for example for rabbit hutches and the like.
According to the invention the mineral wool insulation board is obtained by pressing the stiffening material into its surface. This is preferably done during production of the mineral wool insulation boards themselves, whereby in a pre¬ ferred embodiment of the production method a sheet of mineral wool or several superimposed layers of mineral wool are com¬ pressed within a creper. This results in a gradual longitudi¬ nal compression which is obtained by the speed of passage through the creper being lower than the speed of preceding feed of mineral wool fiber layers, and pressure being addi¬ tionally exerted on an upper band and/or lower band of the creper, thereby compacting the compressed mineral wool fur¬ ther. Before the sheet of mineral wool runs into the creper the stiffening material to be applied to the surface of the mineral wool body is fed to the sheet of mineral wool. The stiffening material can be fed from above or from below with respect to the sheet of mineral wool. It is likewise possible to feed stiffening material to the sheet of mineral wool from both sides so that the mineral wool is sandwiched between the layers of stiffening material. Due to the compression and compacting of the sheet of mineral wool the fibers tend to escape. This escaping material passes into the spaces in the arriving stiffening material during compression or compact¬ ing, thereby resulting in a firm, positive and nonpositive compound between the forming mineral wool body and the stiff¬ ening material. The inventive method for producing the min¬ eral wool insulation board with at least one stiffened sur¬ face within an already existing production step obtains a product improvement without requiring any high additional in¬ vestment. One thus not only obtains high-quality products whose stiffening layer cannot come off the actual mineral wool body, but also saves additional working steps such as spraying an additional binder, which in particular lowers the fire load of the final product. ditional binder, which in particular lowers the fire load of the final product.
In the following some preferred embodiments of the in¬ vention will be described with reference to the drawing, in which:
Fig. 1 shows a schematic, perspective view of a detail of an inventive mineral wool insulation board;
Fig. 2 shows a schematic view of the production method for the inventive mineral wool insulation board.
Fig. 1 shows a schematic view of a detail of inventive mineral wool insulation board 1 in the surface of which gridlike stiffening material 2 consisting of parallel longi¬ tudinal strands and perpendicular cross strands is embedded in uniform arrangement. An especially suitable grid is for example one with diagonally extending strands limiting loz- enged openings therebetween. One can clearly see how fibers la of the inventive mineral wool body embrace individual com¬ ponents 2a of the stiffening material so that a positive com¬ pound arises. The grid is embedded within the insulation board in such a way that the outer surface of the embedded grid along with the mineral wool areas backfilling the grid spaces limit the outer surface of the insulation board. In the embodiment shown, the longitudinal and cross strands have a thickness of about 2 mm with a board thickness of 40 mm, the distance between the cross struts being about 12 mm and that between the longitudinal struts about 20 mm.
Fig. 2 shows a preferred embodiment of a method for pro¬ ducing the inventive mineral wool body with a stiffened sur¬ face. Mineral fibers la are fed in layers by transport bands 3 to creper 4, 4a and passed on from there to removing device or recompacting device 5 in the area of the curing furnace. The speeds of the various successive steps decrease so that at least V3 > V4 holds. The speed difference between V3 and V4 already obtains a compression and compacting of the min¬ eral fiber layers. Pressure P is additionally exerted on the compressed mineral fiber layers via the upper band of creper 4a, which leads to further compacting. At the same time as the mineral wool fiber layers, strengthening material 2 is pacting. At the same time as the mineral wool fiber layers, strengthening material 2 is introduced into the creper so that mineral fibers la come to lie on this strengthening ma¬ terial. Due to the compacting and the additional pressure via the upper band of creper 4a the strengthening material is pressed into at least one surface of the compacted mineral fiber material and connected positively therewith. When the pressed mineral fiber material connected with the strengthen¬ ing material leaves the curing furnace via transport bands 5, it constitutes finished mineral wool fiber product 1.

Claims

Claims
1. A mineral wool insulation board or sheet which is stiffened by an open-pore, flat formation spanning at least one main surface of the insulation board, characterized in that the open-pore formation (2) is embedded in the surface of the insulation board with positive locking, the mineral wool being pressed into the cavities of the open-pore forma¬ tion in the surface area of the insulation board.
2. The insulation board of claim 1, characterized in that the open-pore formation is formed by a wide-meshed for¬ mation, preferably by a net- or gridlike stiffening material.
3. The insulation board of claim 1 or 2, characterized in that the stiffening material is formed from plastic or wire.
4. The insulation board of any of the above claims, characterized in that the open-pore formation is pressed in with the mineral wool body being pressed or compressed in the surface thereof, thereby filling the cavities or spaces in the formation with mineral wool.
5. A method for producing the mineral wool insulation board of claims 1 to 4, characterized in that one or more su¬ perimposed sheets of mineral wool with an open-pore formation placed on at least one main surface are guided through an ap¬ paratus exerting compressing forces, preferably a creper.
6. The method of claim 5, characterized in that at the same time as the sheet of mineral wool is compacted and com¬ pressed it is pressed together with the supplied stiffening material within the creper, resulting in a positive connec¬ tion between mineral wool body and stiffening material.
PCT/EP1996/000307 1995-02-21 1996-01-25 A mineral wool insulation board and a method for producing the same WO1996026310A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SK1345-96A SK284242B6 (en) 1995-02-21 1996-01-25 A mineral wool insulation board and a method for producing the same
DE69604033T DE69604033T2 (en) 1995-02-21 1996-01-25 MINERAL WOOL INSULATION BOARD AND METHOD FOR THE PRODUCTION THEREOF
EP96902253A EP0756647B1 (en) 1995-02-21 1996-01-25 A mineral wool insulation board and a method for producing the same
HU9602905A HU219472B (en) 1995-02-21 1996-01-25 A mineral wool insulation board or sheet and a method for producing the board
PL96316944A PL181096B1 (en) 1995-02-21 1996-01-25 Insulating board made of mineral wool and method of making same
DK96902253T DK0756647T3 (en) 1995-02-21 1996-01-25 Mineral wool insulation board and method for its manufacture
NO964437A NO308909B1 (en) 1995-02-21 1996-10-18 Mineral wool insulation plate, and method of making it
FI964215A FI118266B (en) 1995-02-21 1996-10-18 Insulating board made of mineral wool and its manufacturing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19505969.7 1995-02-21
DE19505969A DE19505969A1 (en) 1995-02-21 1995-02-21 Mineral wool insulation board and method of manufacturing the same

Publications (1)

Publication Number Publication Date
WO1996026310A1 true WO1996026310A1 (en) 1996-08-29

Family

ID=7754626

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/000307 WO1996026310A1 (en) 1995-02-21 1996-01-25 A mineral wool insulation board and a method for producing the same

Country Status (12)

Country Link
EP (1) EP0756647B1 (en)
AT (1) ATE184058T1 (en)
CZ (1) CZ287078B6 (en)
DE (2) DE19505969A1 (en)
DK (1) DK0756647T3 (en)
ES (1) ES2137661T3 (en)
FI (1) FI118266B (en)
HU (1) HU219472B (en)
NO (1) NO308909B1 (en)
PL (1) PL181096B1 (en)
SK (1) SK284242B6 (en)
WO (1) WO1996026310A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857900A1 (en) * 2003-07-23 2005-01-28 Saint Gobain Isover Sandwich material for architectural thermal and/or acoustic insulation applications, notably roofing, comprises a core of a material with a base of mineral fibres, and two facing elements

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SK286220B6 (en) * 2003-04-04 2008-05-06 �Stav Materi�Lov A Mechaniky Strojov Sav Method of producing reinforced structural member, structural member and use thereof
CZ306153B6 (en) * 2015-05-14 2016-08-24 Zdeněk Pavlík Thermally insulating composite panel with breather filler

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GB1504834A (en) * 1976-02-06 1978-03-22 Rockwool Ab Method for the production of a composite sheet of bonded mineral wool fibres
CH597453A5 (en) * 1974-09-23 1978-04-14 Nolco Bv Sound absorbent ceiling plate

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CH597453A5 (en) * 1974-09-23 1978-04-14 Nolco Bv Sound absorbent ceiling plate
GB1504834A (en) * 1976-02-06 1978-03-22 Rockwool Ab Method for the production of a composite sheet of bonded mineral wool fibres

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857900A1 (en) * 2003-07-23 2005-01-28 Saint Gobain Isover Sandwich material for architectural thermal and/or acoustic insulation applications, notably roofing, comprises a core of a material with a base of mineral fibres, and two facing elements
WO2005019124A1 (en) * 2003-07-23 2005-03-03 Saint-Gobain Isover Mineral fibre-based sandwich structure and method for the production thereof
EA007862B1 (en) * 2003-07-23 2007-02-27 Сэн-Гобэн Изовер Mineral fibre-based sandwich structure and method for the production thereof
US7399510B2 (en) 2003-07-23 2008-07-15 Saint-Gobain Isover Mineral fibre-based sandwich structure and method for the production thereof
AU2004266860B2 (en) * 2003-07-23 2010-03-25 Saint-Gobain Isover Mineral fibre-based sandwich structure and method for the production thereof

Also Published As

Publication number Publication date
SK284242B6 (en) 2004-12-01
NO964437D0 (en) 1996-10-18
FI118266B (en) 2007-09-14
SK134596A3 (en) 1997-05-07
EP0756647B1 (en) 1999-09-01
DE19505969A1 (en) 1996-08-22
HUP9602905A2 (en) 1997-05-28
DK0756647T3 (en) 1999-12-13
PL181096B1 (en) 2001-05-31
NO964437L (en) 1996-10-18
FI964215A0 (en) 1996-10-18
CZ299896A3 (en) 1997-01-15
HUP9602905A3 (en) 1998-03-02
DE69604033D1 (en) 1999-10-07
DE69604033T2 (en) 2000-05-04
CZ287078B6 (en) 2000-08-16
EP0756647A1 (en) 1997-02-05
NO308909B1 (en) 2000-11-13
ATE184058T1 (en) 1999-09-15
ES2137661T3 (en) 1999-12-16
PL316944A1 (en) 1997-02-17
HU219472B (en) 2001-04-28
FI964215A (en) 1996-10-18

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