EP0648286A1 - Verfahren zum herstellen von mineralfaserprodukten und vorrichtung zur durchführung des verfahrens. - Google Patents
Verfahren zum herstellen von mineralfaserprodukten und vorrichtung zur durchführung des verfahrens.Info
- Publication number
- EP0648286A1 EP0648286A1 EP93915823A EP93915823A EP0648286A1 EP 0648286 A1 EP0648286 A1 EP 0648286A1 EP 93915823 A EP93915823 A EP 93915823A EP 93915823 A EP93915823 A EP 93915823A EP 0648286 A1 EP0648286 A1 EP 0648286A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mineral fiber
- needles
- fiber web
- needle
- surface area
- 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
Links
- 239000002557 mineral fiber Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- 230000035515 penetration Effects 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000036961 partial effect Effects 0.000 claims description 12
- 238000009950 felting Methods 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 21
- 239000000047 product Substances 0.000 description 13
- 239000007795 chemical reaction product Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 239000002344 surface layer Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
-
- 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
- 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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/488—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
Definitions
- the invention relates to a method for producing mineral fiber products with compacted surface areas from mineral fiber webs, the fibers within the mineral fiber web being essentially parallel or perpendicular or oblique to the large surfaces of the
- a method of the aforementioned type and a device for carrying out the method have become known above all through Canadian Patent 1,057,183.
- a partial web is cut off here by a horizontal cut running parallel to the large surfaces of the mineral fiber web.
- This partial web is then lifted from the remaining mineral fiber web and pressed together between pressure rollers and thus compressed.
- This compressed partial web is then returned to the remaining mineral fiber web.
- This is followed by a common pass through a hardening furnace in which the binder which has hitherto not been cured in the mineral fiber web and also in the partial web is cured.
- the invention is based on the object of providing a method for producing mineral fiber products with compressed surface areas or layers create through which high tear strength and an intensive fiber composite can be achieved.
- the object is achieved according to the invention in that at least one surface area is subjected to needle impact to a predetermined depth of penetration, so that the fibers become matted and at the same time the surface area is compressed.
- the end product is usually plates which are cut to a predetermined length after the treated mineral fiber web has passed through the hardening furnace.
- the stroke frequency of the needles in relation to the normal conveying speed of the mineral fiber web is an important factor for both the degree of compaction and the matting.
- a change in the strength properties of the end product can thus be achieved by changing the stroke frequency of the needle strokes and is adjustable. With a high stroke frequency, there is the advantage that the mineral fiber layer not hit by the needles is not deformed or even compressed due to the inertia.
- An advantageous further development of the method is further achieved in that an endless mineral fiber web is moved continuously, is subjected to a first mechanical precompression, is then further compacted and matted in the given surface area by means of needle strokes and, under a second compression, is subjected to heat treatment to harden the Binder is supplied.
- the needle joints for compacting and felting are distributed uniformly over the entire surface area.
- the production of board material can be increased while the conveying speed remains the same in that the mineral fiber web is cut open in a cutting plane parallel to the large surfaces after the binder has hardened, so that two mineral fiber boards with a compacted layer are formed.
- mineral fiber products that are used on curved surfaces, e.g. B. need to be attached to pipes.
- a matting between the compressed surface layer and the non-compressed mineral fiber layer can be further promoted and the tear resistance increased by treating with different needle types or needle shapes.
- the surface area is compacted and felted by means of short needles, and that part of the fibers are pushed out of the outer, compressed surface area into the inner, uncompressed area of the mineral fiber web by means of longer needles.
- a plate-shaped end product which has a surface layer which is as hard and pressure-resistant as possible, this can be achieved in a simple manner.
- additional additives are introduced through hollow needles for additional reinforcement of the surface area. After hardening, these additives can act to a certain extent like small stamps. However, they can also be injected in such a way that they penetrate into the area between the adjacent fibers and thus bring about an even greater degree of cohesion within the compacted surface layer.
- the additives can also be introduced into the uncompressed mineral fiber layer, so that in addition to the felting in the
- a thin fleece made of a fiber material preferably of glass fibers, is placed on the surface of the mineral fiber web and the needle-pushing process is then carried out is so that part of the nonwoven fibers is embedded in the mineral fiber web.
- the thin fleece or the fabric can also consist of a different fiber material than mineral fibers, such. B. made of plastic fibers, textile fibers or metal fibers.
- FIG. 1 shows a basic illustration of the conveying path of a mineral fiber web with conveying devices and a compacting and felting machine
- FIG. 2 shows an embodiment of a needle
- Figure 3 shows another embodiment of a needle
- Figure 4 is a side view of a section of a mineral fiber web compressed and matted on both sides in an enlarged view
- FIG. 5 shows a schematic diagram according to FIG. 1, but with compression and felting machines on both sides.
- a mineral fiber web 1 is continuously fed in the direction of arrow 22 between endless conveyor belts 2 and 3 with a certain thickness.
- the mineral fiber web comes from a known, unsigned collecting chamber, in which the mineral fibers produced are deposited into a layer on an air-permeable conveyor belt after the addition of a binder.
- the mineral fiber web is then initially held in a relatively loose state between the two conveyor belts 2, 3, which are guided around deflection rollers 4 and 5. There is then a certain somewhat exaggerated pre-compression of the mineral fiber web between pressure rollers 6, 7 to 8, 9 or between appropriately arranged and guided conveyor belts.
- the mineral fiber web can be mechanically precompressed very homogeneously in this first conveying section until a pre-compressed mineral fiber web 10 of a predetermined thickness is produced.
- the mineral fiber web 10 pre-compressed in this way then arrives in a compression and felting device which is shown in simplified form in FIG. It has a plurality of needles 13 which are connected in groups or together with a lifting device which carries out a high-frequency lifting movement in the direction of arrow 15.
- a lifting device is arranged on at least one surface side, either on the upper or lower side, of the mineral fiber web 10, 17 and is provided with a lifting drive (not shown).
- the needles 13 are fastened to a plate-like carrier 11.
- This plate-like carrier is connected to the lifting device and the drive, in such a way that the needles penetrate into the surface area of the mineral fiber web 10, 17 up to a predetermined penetration depth and compress it in the preselected surface area and simultaneously matt it.
- the stroke of the lifting device is advantageously adjustable and adjustable to a certain height, and the stroke frequency can be regulated via the drive. It is also advantageous if the impact forces of the needles 13 can be regulated. By limiting the impact forces, the compression needles can be prevented from deforming within the mineral fiber web when unwanted wool inclusions occur, so that the risk of the needles breaking off is reduced. In practice, these previously mentioned settings and controls can be accomplished in a simple manner by the fact that the lifting device can be actuated pneumatically or hydraulically.
- the needles 13, in particular the compression needles used for compression, have a chisel-like widened head 27 or 30 which, according to FIGS. 2 and 3, are molded onto the end of the needle shaft 26 or 29.
- the needle head 27 has a cutting edge 28 at the lower end which, when opened, meet the fibers force them into a loop shape and thus result in a matting with the neighboring fibers.
- a needle tip 31 which projects downward is provided on the chisel head 30. Instead, several needle tips can be arranged.
- the needle tips expediently have small lateral hooks 32 and 33, which lead to further deformation and matting of mineral fibers, particularly in the boundary region between the compressed surface region on the one hand and the non-compressed region of the mineral fiber web.
- Another constructive embodiment serves the same goal of felting and connection between the two aforementioned layers, according to which at least two different needle groups, namely a group of short front needles and a group of longer post needles, are provided.
- the needles or plungers have a larger diameter and, as shown in FIGS. 2 and 3, other shapes than are known from the textile industry, for example in the case of multi-needle sewing machines.
- the arrangement of the compression needles should suffice for a random stitch arrangement, so that the outer surface areas or layers are pre-compressed as uniformly and evenly as possible in a punctiform manner and according to the stroke frequency to be set. It is important to concentrate the impact stress caused by the needles on a small area in relation to the surface of the entire mineral fiber web, so that the impact forces compress the outer zones explained and due to the force distribution at point loads, the layers below are only slightly stressed Experienced.
- compression needles e.g. B. with a short front needle, the fibers are forced out of the outer compressed layers into the underlying undensified fiber layers, so that additional connections are created which further favorably influence the bending and tearing behavior of the finished product.
- the compression Needles themselves are advantageously made of light and abrasion-resistant material.
- the aim here is to reduce the mass of the needles and the components to be moved as much as possible, so that correspondingly higher stroke frequencies are possible. This is particularly important at high line speeds in the production of the mineral fiber webs.
- the compaction and felting can be carried out either on the top or bottom of the mineral fiber web or, as shown in FIG. 5 and in particular FIG. 4 on an enlarged scale, on both sides.
- the mineral fiber web 17 compressed on both sides then has two compacted and matted surface areas 34 and 35 and an intermediate, undensified and non-matted middle layer 17 and 37, however, a good connection between the layers is ensured.
- a slicing device (not shown) can be used to cut a mineral fiber web 17 or 21 matted and compacted on both sides in accordance with the separating cut 36 (FIG. 4) in two Partial webs may be provided.
- the compressed mineral fiber web 17 emerging from the needling or felting machine is fed via conveyor rollers 18, 19 or corresponding endless conveyor belts to a hardening furnace 20, in which the mineral fiber web 21, for example, between another endless belt, not shown can receive slight post-compaction, especially to smooth the surfaces.
- the binder which has not been cured until then is finally cured in the curing oven 20.
- the mineral fiber web emerges from the hardening furnace in the direction of arrow 23 and can be separated into suitable plate pieces and processed into the end product. or the separation cut 36 described according to FIG. 4 can cause the separation into plate parts.
- Figures 1 and 5 show yet another embodiment of the device according to the invention, namely that one side ( Figure 1) or both sides ( Figure 5) between the plate-like needle carriers 11 and 12 on the one hand and the mineral fiber web 10, 17 on the other hand each have a further plate 24 and 25 is provided, in which the needles 13, 14 are guided.
- These plates 24 and 25 can also be connected to the lifting device. They can bring about a certain additional surface compaction, but above all these plates can be used to push fibers that may have been torn out of the surface back into the surface.
- the lifting devices arranged on both sides according to FIG. 5 are advantageously operated in the direction of arrows 15 and 16 with the same lifting frequency and in push-pull mode, ie. H. if the upper lifting device moves downwards, the lower lifting device is moved upwards at the same time and vice versa during the back stroke. Since the device according to FIG. 5 is essentially symmetrical or a mirror image of the horizontal central plane, the same reference numerals have been used for the same or equivalent parts.
- a further embodiment of the invention is achieved in that the needles are designed as hollow needles and are connected to a feed device for additives, preferably liquid additives.
- the needles for adaptation to the conveying speed of the mineral fiber web are each intermittently movable, preferably pivotable, on the lifting device during the puncture in the conveying direction. In this way, the needles are protected, friction and thus an avoiding warming and practically completely eliminating the risk of a break-off.
- Position of origin can be achieved by simple mechanical gear arrangements, e.g. B. by means of eccentrics.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonwoven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4222207 | 1992-07-07 | ||
DE4222207A DE4222207C3 (de) | 1992-07-07 | 1992-07-07 | Verfahren zum Herstellen von Mineralfaserprodukten und Vorrichtung zur Durchführung des Verfahrens |
PCT/EP1993/001758 WO1994001608A1 (de) | 1992-07-07 | 1993-07-07 | Verfahren zum herstellen von mineralfaserprodukten und vorrichtung zur durchführung des verfahrens |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0648286A1 true EP0648286A1 (de) | 1995-04-19 |
EP0648286B1 EP0648286B1 (de) | 1996-06-05 |
EP0648286B2 EP0648286B2 (de) | 2001-08-29 |
Family
ID=6462618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93915823A Expired - Lifetime EP0648286B2 (de) | 1992-07-07 | 1993-07-07 | Verfahren zum herstellen von mineralfaserprodukten und vorrichtung zur durchführung des verfahrens |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0648286B2 (de) |
AT (1) | ATE138985T1 (de) |
CZ (1) | CZ323194A3 (de) |
DE (2) | DE4222207C3 (de) |
HU (1) | HUT69480A (de) |
SK (1) | SK280293B6 (de) |
WO (1) | WO1994001608A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10703668B2 (en) | 2011-09-30 | 2020-07-07 | Owens Corning Intellectual Capital, Llc | Method of forming a web from fibrous material |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19728523A1 (de) * | 1997-07-04 | 1999-01-07 | Erfurtgemuese E G | Verfahren und Vorrichtung zur Herstellung textiler Flächengebilde |
DE19734532C2 (de) * | 1997-07-31 | 2002-06-13 | Thueringer Daemmstoffwerke Gmb | Dämmelement |
DE59810045D1 (de) | 1997-07-31 | 2003-12-04 | Thueringer Daemmstoffwerke Gmb | Dämmelement aus Mineralwolle und Verfahren zur seinen Herstellung |
DE19756113C2 (de) * | 1997-12-17 | 2002-01-03 | Oesterr Heraklith Gmbh | Vorrichtung und Verfahren zum Nadeln von Faservliesen zur Herstellung einer Dämmatte |
FR2780420B1 (fr) * | 1998-06-25 | 2000-08-11 | Mci Technologies | Procede de fabrication d'un revetement de fibres de verre |
DE19906734C1 (de) * | 1999-02-18 | 2000-07-27 | Rockwool Mineralwolle | Dämmstoffelement und Vorrichtung zur Herstellung eines Dämmstoffelementes |
DE19919004A1 (de) * | 1999-04-27 | 2000-11-02 | Rockwool Mineralwolle | Verfahren und Vorrichtung zur Herstellung von Dämmstoffen aus Mineralfasern sowie Dämmstoffelement aus Mineralfasern |
DE10148376B4 (de) * | 2001-09-29 | 2006-06-22 | Piechatzek, Günter Alois, Dipl.-Ing. | Dämmstoff-Matte auf der Basis von Hanf-Fasern sowie Verfahren und Anlage zu deren Herstellung |
DE10241231B4 (de) * | 2002-03-11 | 2006-02-09 | Deutsche Rockwool Mineralwoll Gmbh + Co Ohg | Wärme- und/oder Schalldämmsystem sowie Dämmelement |
DE10261988B4 (de) * | 2002-07-19 | 2007-01-25 | Deutsche Rockwool Mineralwoll Gmbh + Co Ohg | Dämmschicht aus Mineralfasern |
DE10338001C5 (de) * | 2003-08-19 | 2013-06-27 | Knauf Insulation Gmbh | Verfahren zur Herstellung eines Dämmelementes und Dämmelement |
DE102009038564A1 (de) * | 2009-03-31 | 2010-10-14 | IKJ S.à.r.l. | Faservlies und deren Herstellung |
DE102012112670A1 (de) | 2012-12-19 | 2014-06-26 | Saint-Gobain Isover G+H Ag | Nadelfilz |
CN108442041B (zh) * | 2018-04-23 | 2019-08-16 | 武汉纺织大学 | 一种蜂巢多孔结构棉的压实刺织***及其使用方法 |
CN110126432B (zh) * | 2018-04-23 | 2021-05-28 | 武汉纺织大学 | 一种蜂巢多孔结构棉的制备*** |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1947789A1 (de) * | 1969-09-20 | 1971-03-25 | Basf Ag | Verfahren zur Herstellung von Vliesstoffen |
US3731352A (en) * | 1970-06-15 | 1973-05-08 | Toray Industries | Method of manufacturing a fibrous sheet |
GB1346894A (en) * | 1971-04-19 | 1974-02-13 | Wool Ind Res Assoc | Needling methods and apparatus |
DE2232785C3 (de) * | 1972-07-04 | 1985-08-08 | Bayerische Wollfilzfabriken KG, Offermann, Zeiler Schmid & Co, 8875 Offingen | Poröses Nadelvlies sowie zugehörige Herstellungsverfahren und Anwendungen |
US4070519A (en) * | 1976-04-27 | 1978-01-24 | Huyck Corporation | High temperature filter fabrics |
CA1057183A (en) * | 1976-05-06 | 1979-06-26 | Malcolm J. Stagg | Method and apparatus for producing multiple density fibrous product |
US4309800A (en) * | 1979-08-02 | 1982-01-12 | Foster Needle Co. | Felting needle |
DE2940425A1 (de) * | 1979-10-05 | 1981-04-16 | Erste Deutsche Basaltwolle Kg A. Messler, 8712 Volkach | Matte aus mineralfasern |
DE3701592A1 (de) * | 1987-01-21 | 1988-08-04 | Rockwool Mineralwolle | Verfahren zur kontinuierlichen herstellung einer faserdaemmstoffbahn und vorrichtung zur durchfuehrung des verfahrens |
FR2617208B1 (fr) * | 1987-06-26 | 1989-10-20 | Inst Textile De France | Procede et materiel d'aiguilletage de mat de verre et produit composite realise a partir dudit mat |
GB8905793D0 (en) * | 1989-03-14 | 1989-04-26 | Emhart Materials Uk | Graduated density felt |
FR2663961B1 (fr) * | 1990-06-29 | 1994-04-29 | Asselin Ets | Procede d'aiguilletage et machine pour sa mise en óoeuvre, en particulier pour fibres minerales courtes. |
DE4135623C2 (de) * | 1991-02-01 | 1995-04-27 | Heraklith Baustoffe Ag | Verfahren und Vorrichtung zum Herstellen von Mineralfaserplatten sowie danach hergestellte Mineralfaserplatten |
DE9117005U1 (de) * | 1991-02-01 | 1995-02-02 | Heraklith Baustoffe AG, Fürnitz | Mineralfaserplatte und Vorrichtung zu ihrer Herstellung |
-
1992
- 1992-07-07 DE DE4222207A patent/DE4222207C3/de not_active Expired - Fee Related
-
1993
- 1993-07-07 WO PCT/EP1993/001758 patent/WO1994001608A1/de not_active Application Discontinuation
- 1993-07-07 SK SK1604-94A patent/SK280293B6/sk unknown
- 1993-07-07 HU HU9403604A patent/HUT69480A/hu unknown
- 1993-07-07 DE DE59302837T patent/DE59302837D1/de not_active Expired - Fee Related
- 1993-07-07 CZ CZ943231A patent/CZ323194A3/cs unknown
- 1993-07-07 AT AT93915823T patent/ATE138985T1/de not_active IP Right Cessation
- 1993-07-07 EP EP93915823A patent/EP0648286B2/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9401608A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10703668B2 (en) | 2011-09-30 | 2020-07-07 | Owens Corning Intellectual Capital, Llc | Method of forming a web from fibrous material |
US11939255B2 (en) | 2011-09-30 | 2024-03-26 | Owens Corning Intellectual Capital, Llc | Method of forming a web from fibrous material |
Also Published As
Publication number | Publication date |
---|---|
DE59302837D1 (de) | 1996-07-11 |
HUT69480A (en) | 1995-09-28 |
DE4222207C2 (de) | 1995-11-09 |
SK160494A3 (en) | 1995-05-10 |
EP0648286B1 (de) | 1996-06-05 |
HU9403604D0 (en) | 1995-02-28 |
SK280293B6 (sk) | 1999-11-08 |
DE4222207A1 (de) | 1994-01-13 |
CZ323194A3 (en) | 1995-04-12 |
ATE138985T1 (de) | 1996-06-15 |
WO1994001608A1 (de) | 1994-01-20 |
EP0648286B2 (de) | 2001-08-29 |
DE4222207C3 (de) | 2002-04-04 |
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