DE10247711A1 - Process for making a thermoplastic natural fiber product - Google Patents

Process for making a thermoplastic natural fiber product

Info

Publication number
DE10247711A1
DE10247711A1 DE2002147711 DE10247711A DE10247711A1 DE 10247711 A1 DE10247711 A1 DE 10247711A1 DE 2002147711 DE2002147711 DE 2002147711 DE 10247711 A DE10247711 A DE 10247711A DE 10247711 A1 DE10247711 A1 DE 10247711A1
Authority
DE
Germany
Prior art keywords
characterized
method according
preceding
component
natural fiber
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.)
Withdrawn
Application number
DE2002147711
Other languages
German (de)
Inventor
Helmut Hiendl
Original Assignee
Helmut Hiendl
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 to DE2002110107 priority Critical patent/DE10210107A1/en
Priority to DE10226826 priority
Application filed by Helmut Hiendl filed Critical Helmut Hiendl
Priority to DE2002147711 priority patent/DE10247711A1/en
Priority claimed from AU2003223845A external-priority patent/AU2003223845A1/en
Publication of DE10247711A1 publication Critical patent/DE10247711A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00Pretreatment of moulding material
    • B27N1/02Mixing the material with binding agent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/28Moulding or pressing characterised by using extrusion presses

Abstract

The invention relates to a novel method for producing a thermoplastic natural fiber product by treating at least one natural fiber component and at least one thermoplastic plastic component in a mixing and comminuting device with at least one mixing and comminuting element provided in the treatment room of this device to achieve a mixed or intermediate product. which has at least the natural fiber component in comminuted form and at least partially deposited on it the plastic component.

Description

  • The invention relates to a method for producing a thermoplastic Natural fiber material or a thermoplastic natural fiber product Preamble of claim 1.
  • A material consisting of shredded wood or a cellulose is known thermoplastic (EP 0 667 375 A1). This known material lies the proportion of plastic between 25 and 80 percent by weight and the proportion of crushed cellulose or on crushed natural fiber component at about 20 to 75 Weight. A fundamental disadvantage is that especially when if wood is used as the natural fiber component, this component is very contains a high proportion of water (up to 15 percent by weight). This proportion of water must removed and / or neutralized, either by heating the Total mass of wood and plastic or by an undesirable per se Add water-neutralizing additives or fillers, such as. B. CaO, or but through the use of special, water neutralizing or absorbing Plastics.
  • The water content of the natural fiber component is particularly troublesome because he later processing of the wood-plastic mass into molded parts, etc. for Formation of vapor bubbles and thus u. a. to unwanted recesses or Bumps in the outer surface of the molded part.
  • A method for producing plates, hollow plates, profiles is also known or hollow profiles made of lignocellulosic or similar material, such as wood chips, Fibers etc. (DE-OS 16 53 263). In this known method, the wet, cut raw material in several drying mixers Frictional heat of the mixing tools, by heating the used Mixer container and dried by supplying hot air. The dried, heated raw material is then in a glue mixer under continuous Addition of a powdered binder glued. So with the binder Mixed raw material is then turned into the respective product in an extruder processed.
  • The object of the invention is to demonstrate an improved method. To the solution this object is a method according to claim 1 is formed. In the method according to the invention, the at least one Plastic component from the thermoplastic in the treatment room fed as a strand. This strand is then in the treatment room by the in Mixing and separating device arranged in the treatment room is also separated. This may be done with the heating of the treatment room through the crushing work, the stretching and shearing work, the friction work, etc. a gentle and controllable partial heating of those in the process Components, so that on the one hand the water content by evaporation from the Natural fiber component reliably removed without damaging it and on the other hand the thermoplastic component is heated to the extent that it is Component at least partially as a coating on the finely crushed Separates natural fiber component, so a "mixed product" is obtained, which finely shredded particles or fibers of the natural fiber component with the Contains plastic component coated. The cutting is done by tearing, Breaking, shearing, cutting, etc. By inserting the plastic component as a strand there is also the possibility of a very precise and simple one Dosage.
  • In a preferred embodiment, wood is used as the natural fiber component, preferably used as wood pellets, with which then also for Natural fiber component provides a simple and accurate dosing option. such Wood pellets are known to the person skilled in the art and are made using special pelleting presses (e.g. ring die presses) made of shredded wood, e.g. wood flour, Wood shavings or other wood remnants are produced, namely in that these Wood components when pelleting under pressure and without additives, solely due to the substances naturally present in the wood (resin, lignin, etc.) into pellets be shaped.
  • Developments of the invention are the subject of the dependent claims. The invention The following is based on the figure, which is a simplified schematic representation reproduces the various steps of a method according to the invention explained.
  • The central element of the system shown in the figure for carrying out the method according to the invention is an agglomerator 1 known as a mixing and comminuting or separating device, which essentially consists of a treatment room or container 2 which is open at the top and which is arranged in the interior of the container and there is a separating and stirring element 4 driven around the vertical axis of the container by a drive 3 . The rotational speed of the fly-knife-like separating and stirring element can be regulated by appropriate control of the drive 3 and / or a gear, not shown.
  • The container 2 is fed via a feed hopper 5, the natural fiber component 6 , which is essentially wood chips in pelletized form in the embodiment shown. The use of the natural fiber component in pellet form allows, among other things, simplified handling and also a more precise and simplified metering when the natural fiber component 6 is added to the container 2 .
  • In the container 2 , the plastic component formed by at least one thermoplastic is also introduced, specifically via a metering extruder 7 , which is arranged with its outlet 8 above the opening of the container 2 , so that at least one strand 9 of the plastic component produced by the metering extruder 7 in the container 2 is introduced continuously with the continuous addition of the natural fiber component, specifically in the proportion of natural fiber component / plastic component corresponding to the recipe and with the mixing and separating element 4 rotating.
  • The proportion of plastic can vary within wide limits, e.g. B. 60 to 20 Weight percent based on the starting recipe and is, for example 40 to 20 weight percent based on the total weight of the manufactured thermoplastic natural fiber product. A share of plastic at around 15 Weight percent or lower may a. be appropriate for cost reasons.
  • In the agglomerator 1 , the plastic strand 9 is cut and comminuted by cutting, tearing, etc. At the same time, the natural component 6 supplied as pellets is comminuted in the container 2 and the two components are "mixed".
  • The treatment of the two components in the container 2 takes place in such a way that at the end of the mixing and comminution process carried out there is an intermediate product which has the natural fiber or wood component in finely comminuted form or as fibers with a coating of the plastic component.
  • During mixing and crushing, considerable energy is partially introduced into the components, among other things through the crushing work when crushing the components, through stretching work, in particular when crushing the strand 9 , through friction and shearing work while crushing the strand 9 and when the two are mixed components, etc. in the container 2 is introduced further incorporate the present in the plastic strand 9 thermal energy, in principle it is also possible, the plastic strand 9 still in the liquid or partially liquid state into the container 2, so that in this case then also the enthalpy of liquid plastic can be used. Due to the energy introduced into the mixing components during the mixing and crushing, the necessary drying of the natural fiber component is achieved, if necessary with the auxiliary heating of the container 2 . Due to the constant circulation of the components during the treatment in the container 2 , the escape of moisture in the form of water vapor from the mixed product is significantly accelerated.
  • The mixed or intermediate product, which actually consists of the comminuted and dried natural fiber component, on the particles or fibers of which the plastic component is at least partially applied or deposited, is fed via an outlet 10 to the feed hopper 11 of a metering device 12 of a pelletizer 13 . The metering device 12 is a screw metering device in the illustrated embodiment. The starting product of the pelletizer is thus pellets 14 made of the dried and shredded natural fiber or wood component and the plastic of the plastic component that holds these pellets 14 together.
  • The pellets 14 can be stored and traded as starting or raw material for further production, as indicated by the arrow 15 in the figure, or the pellets 14 are fed to a device 16 for producing molded parts 17 , for example an extruder.
  • The molded parts 17 can be of the most varied types and basically have the advantage that only a small proportion of plastic (for example only about 15 percent by weight) is required for their production, while the rest is formed by the inexpensive natural fiber or wood component available on the market. Furthermore, the molded parts 17 can be produced with an attractive external appearance and with high strength.
  • A wide variety of variants are conceivable in the method described above. For example, it is possible to carry out the mixing and crushing, that is to say the material preparation, in a closed container 2 which is subjected to negative pressure, in order to accelerate and improve the drying of the natural fiber or wood component. Furthermore, it is possible to introduce further additives in the material preparation, for example tannin or tannin-containing natural substances or wood materials, for example bark from acacia, and / or rosin and / or adhesion promoters, ie substances which prevent the plastic from adhering to the comminuted natural fiber or wood component and / or improved on other components introduced into the prepared mixture and / or on components used later in the processing into the molded parts 17 . There is also the possibility of introducing water-binding additives, for example anhydrides, e.g. B. maleic anhydrides so as to further accelerate and improve the drying process.
  • Especially when the thermoplastic natural fiber product for the production of Products or molded parts with high strength are used, it is possible at the Material preparation to introduce an additional fiber material, namely for example, that in addition to that, the matrix in the material preparation of the thermoplastic natural fiber product plastic fibrous plastic material, for example as at least one other Plastic strand is introduced. This further plastic material is then z. B. like this chosen that it remains essentially fibrous in the material preparation, d. H. for example one in comparison to the plastic material forming the matrix has a higher melting point.
  • There is also the possibility of supplying the plastic component forming the matrix in several strands 9 to the material preparation in the container 2 , the shape of the strand or strands being basically arbitrary, that is to say, for example, as a fibrous strand, as an extruded film-shaped strand, as a reticulated strand or reticulated Structure etc.
  • Instead of the agglomerator 1 described above with only one mixing and comminuting element 4 , other mixing and comminuting devices can of course also be used, in particular also those which have a plurality of individually controllable mixing and / or comminuting elements and / or viewing elements.
  • By controlling, in particular the duration and / or intensity of the material preparation, the consistency of the mixed product can be changed and adapted to the needs of the subsequent devices, for example the metering device 12 and the pelletizer 13 . For example, by controlling the processing time and / or the processing intensity, a fine-grained or coarse-grained intermediate or mixed product can optionally be obtained, in which case the natural fiber or wood component, which is also finely comminuted there, is baked together into larger particles in the coarser-grained intermediate product. The control of the duration and / or intensity of the material preparation is effective with virtually no delay on the components in the process.
  • The speed of the agglomerator 1 or the mixing and separating element 4 there is, however, chosen to be sufficiently high so that the strand 9 is actually cut and not wound up by the rotating mixing and separating element 4 .
  • Suitable for the plastic component in the method according to the invention basically all thermoplastics, but especially those that have a sufficiently high modulus of elasticity (tensile modulus of elasticity and / or flexural modulus of elasticity). Suitable thermoplastics are, for example, ABS, PS, thermoplastic elastomers, PP, PE in various modifications, possibly also PA and PC. For the Natural fiber components are particularly suitable for those already mentioned above Wood pellets, but also sawdust, wood chips, wood fibers and / or others Natural fibers, such as B. straw, fibers from corn plants, fibrous waste from the Natural fiber production such as B. hemp shives. Also additives from synthetic fibers and / or modified natural fibers (e.g. cellulose fibers) are conceivable.
  • It was assumed above that the mixing system is formed by a single mixer or agglomerator 1 . Versions are also conceivable in which the mixer system is cascaded, for example, to increase performance, that is to say it consists of a plurality of mixers which are connected in the processing or production sequence and which follow one another, for. B. from a pre-mixer with a shredding system and / or from an upstream shredding device, which is then, for example, equipped with a system or a device (eg classifier) for adjusting the particle size. The natural fiber component is then, for example, fed to this premixer and / or this comminution device, while the plastic component is mixed with the natural fiber component in a subsequent mixer.
  • Furthermore, it is conceivable that several mixers are provided in the production sequence in succession and in connection with one another, via which the plastic component is added gradually, ie in several steps. Finally, the mixer system can also have a cooling mixer with comminution components or elements in order to control the grain size of the agglomerate, which in the embodiment shown in the figure is then fed to the feed hopper 11 of the metering device 12 .
  • The formation of the strand 9 fed to the agglomerator 1 or another mixing system can also be carried out by coextrusion using at least two different plastics which, for example, differ in their properties of interest and / or of which one component is particularly cheaply available on the market, while one further component z. B. has special, necessary for the manufacture of the product or optimal properties, for example, is particularly compatible with the natural fiber component used in each case.
  • In this sense, it is possible, for example, to manufacture the strand 9 with a core component made of PP homopolymer (stiff and higher melting) and with a surface layer made of PP copolymer (softer, more impact resistant and low melting), the surface layer then possibly also with a Additive z. B. is modified with a maleic acid polymer.
  • Furthermore, it is e.g. B. possible to produce the strand 9 with a core component made of HD-PE (solid, rigid and inexpensive available) and with a surface layer made of EVAC (ethylene vinyl acetate), the properties of which are elastic, sticky and fillers absorbing well.
  • Furthermore, it is possible to extrude the strand 9 in such a way that its core consists of an inexpensive mass plastic (PP, HD-PE) or of another plastic, for example polyamide, thermoplastic elastomer, etc., the core of cover layers made of such plastics, Plastic compounds or copolymers is surrounded, which are particularly well tolerated with plant fibers. In such a multi-layer design, the core of the strand 9 consists, for example, of HD-PE or of HD-PE / EVAC compound or copolymer, a subsequent intermediate layer of EVAC (ethylene-vinyl acetate) and an outer cover layer of a plastic Cellulose, for example from cellulose acetate or cellulose propionate, e.g. B. partially modified (compounded or copolymerized) with EVAC.
  • In order to improve the adhesion between the generally hydrophobic plastic and the hydrophilic natural fiber components, it is also possible to carry out an electrical pretreatment of the plastic in the agglomerator 1 or in a mixer of another mixing system, for example a corona treatment or a treatment by plasma discharge to increase the polarity, especially of non-polar plastics, and to improve the adhesion.
  • It is also possible to add foam additives in the production sequence in order to improve, among other things, the impact resistance, weather resistance and / or nailability of the end product 17 produced. As foam additives such. B. sodium bicarbonate, citric acid and derivatives. Here, the process control must of course be selected so that foaming only takes place in the molding tool, for example in the extruder 16 , which is used to produce the product.
  • The impact strength of the product can be further improved by adding additional fibers, for example cellulose fibers. LIST OF REFERENCES 1 agglomerator
    2 containers
    3 drive
    4 mixing and / or separating element
    5 feed hoppers for the natural fiber component
    6 wood pellet
    7 dosing extruders
    8 extruder head
    9 strands
    10 outlet
    11 hopper
    12 dosing device
    13 pelletizers
    14 thermoplastic natural fiber product in the form of pellets
    15 Storage or resale
    16 mold, for example extruder
    17 Product made from thermoplastic natural fiber material

Claims (20)

1. A method for producing a thermoplastic natural fiber material or a thermoplastic natural fiber product ( 14 , 17 ), by treating at least one natural fiber component ( 6 ) and at least one thermoplastic plastic component ( 9 ) in a mixing and comminuting device ( 1 ) with at least one in the treatment room ( 2 ) this device provided mixing and comminuting element to achieve a mixed or intermediate product which has at least the natural fiber component in comminuted form and at least partially deposited on the plastic component, characterized in that the plastic component to the treatment room ( 2 ) of the mixing and comminuting device ( 1 ) as at least one strand ( 9 ) is supplied.
2. The method according to claim 1, characterized in that the mixed or intermediate product is pelletized ( 14 ).
3.. Method according to Claim 1 or 2, characterized in that an agglomerator ( 1 ) with a container ( 2 ) forming the treatment space and with at least one mixing and separating element which is arranged in the container ( 2 ) and can be driven in rotation is an agglomerator ( 1 ).
4. The method according to any one of the preceding claims, characterized in that the natural fiber component ( 6 ) is introduced at least partially in the form of pellets in the treatment room ( 2 ).
5. The method according to any one of the preceding claims, characterized in that the natural fiber component ( 6 ) is at least partially wood, for example sawdust, wood chips and / or wood pellets.
6. The method according to any one of the preceding claims, characterized in that the plastic component is supplied as at least one cured strand ( 9 ).
7. The method according to any one of the preceding claims, characterized in that the at least one plastic component ( 6 ) is supplied to the treatment room ( 2 ) as an even softer or liquid strand.
8. The method according to any one of the preceding claims, characterized in that the treatment room ( 2 ) is heated.
9. The method according to any one of the preceding claims, characterized by at least one extruder ( 7 ) for producing the at least one strand ( 9 ) of the plastic component.
10. The method according to any one of the preceding claims, characterized in that the treatment room ( 2 ) at least one further component, for example a further plastic component, for example in fiber or strand form, and / or at least one filler and / or an adhesion promoter and / or natural Resins or wood components, such as. B. tannin and / or rosin.
11. The method according to any one of the preceding claims, characterized in that the treatment room ( 2 ) is subjected to a negative pressure during mixing and crushing.
12. The method according to any one of the preceding claims, characterized in that the mixed or intermediate product and / or pellets ( 14 ) produced therefrom are used as starting material for molding molded parts ( 17 ), preferably by extrusion.
13. The method according to any one of the preceding claims, characterized in that a mixer arrangement is used as the mixing and comminuting device which is connected to each other and to each other in the production sequence connected has at least two mixers.
14. The method according to claim 13, characterized in that each mixer Plastic component is supplied.
15. The method according to any one of the preceding claims, characterized in that at least a part of the natural fiber component ( 6 ) is treated in a pre-mixer with comminution device and preferably with classifier before mixing with the plastic component ( 9 ).
16. The method according to any one of the preceding claims, characterized in that the mixed or intermediate product in a cooling mixer Crushing components to control the grain size of the mixing or Intermediate (agglomerate) is treated.
17. The method according to any one of the preceding claims, characterized in that that the natural fiber component or part of this component and / or that Mixed or intermediate product in a shredding and classifying system Control of grain size is treated.
18. The method according to any one of the preceding claims, characterized in that the plastic component is at least partially a coextruded strand ( 9 ) consisting of at least two different plastics, for example one plastic is a core of the strand ( 9 ) and another plastic is at least one Core enclosing layer forms.
19. The method according to any one of the preceding claims, characterized by the Addition of a foaming agent, for example sodium hydrogen carbonate and and acid, for example citric acid.
20. The method according to any one of the preceding claims, characterized in that that in the at least one mixing and crushing device an electrical Pretreatment, the plastic component is done.
DE2002147711 2002-03-08 2002-10-12 Process for making a thermoplastic natural fiber product Withdrawn DE10247711A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2002110107 DE10210107A1 (en) 2002-03-08 2002-03-08 Production of thermoplastics/natural fiber products (e.g. chipboard) is improved by introducing the plastics components in strand form
DE10226826 2002-06-15
DE2002147711 DE10247711A1 (en) 2002-03-08 2002-10-12 Process for making a thermoplastic natural fiber product

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE2002147711 DE10247711A1 (en) 2002-03-08 2002-10-12 Process for making a thermoplastic natural fiber product
AU2003223845A AU2003223845A1 (en) 2002-03-08 2003-03-06 Method for the production of a thermoplastic natural fibre product
EP20030720144 EP1483091B1 (en) 2002-03-08 2003-03-06 Method for the production of a thermoplastic natural fibre product
AT03720144T AT337899T (en) 2002-03-08 2003-03-06 Method for producing a thermoplastic natural fiber product
PCT/DE2003/000727 WO2003076147A1 (en) 2002-03-08 2003-03-06 Method for the production of a thermoplastic natural fibre product
DE2003504855 DE50304855D1 (en) 2002-03-08 2003-03-06 Method for producing a thermoplastic natural fiber product

Publications (1)

Publication Number Publication Date
DE10247711A1 true DE10247711A1 (en) 2003-09-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE2002147711 Withdrawn DE10247711A1 (en) 2002-03-08 2002-10-12 Process for making a thermoplastic natural fiber product

Country Status (1)

Country Link
DE (1) DE10247711A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335139A1 (en) * 2003-07-31 2005-02-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the production of lightweight components as well as lightweight construction profiles that can be produced by the process
DE10348804A1 (en) * 2003-10-21 2005-06-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the production of lightweight components with wood fibers and lightweight profiles which can be produced by the process
EP1782932A2 (en) * 2005-11-02 2007-05-09 Reimelt Henschel MischSysteme GmbH Method for the production of wood-particles coated with at least one type of thermoplastic material, and the composition obtained by said method
DE102006032947A1 (en) * 2006-07-17 2008-01-24 Kaindl Flooring Gmbh Process for the production of material plates and material plate
DE102007038408A1 (en) * 2007-08-14 2009-02-26 Agm Mader Gmbh Process for producing a shaped body, in particular for the construction or furniture industry, and a component, such a shaped body, such a structural component and a molding compound for producing the shaped body
EP2138288A1 (en) 2008-06-24 2009-12-30 AGM Mader GmbH Mould for the construction or furniture industry, mould assembly and method of manufacturing a mould

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335139A1 (en) * 2003-07-31 2005-02-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the production of lightweight components as well as lightweight construction profiles that can be produced by the process
DE10348804A1 (en) * 2003-10-21 2005-06-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the production of lightweight components with wood fibers and lightweight profiles which can be produced by the process
EP1782932A2 (en) * 2005-11-02 2007-05-09 Reimelt Henschel MischSysteme GmbH Method for the production of wood-particles coated with at least one type of thermoplastic material, and the composition obtained by said method
EP1782932A3 (en) * 2005-11-02 2009-02-25 Reimelt Henschel MischSysteme GmbH Method for the production of wood-particles coated with at least one type of thermoplastic material, and the composition obtained by said method
DE102006032947A1 (en) * 2006-07-17 2008-01-24 Kaindl Flooring Gmbh Process for the production of material plates and material plate
DE102007038408A1 (en) * 2007-08-14 2009-02-26 Agm Mader Gmbh Process for producing a shaped body, in particular for the construction or furniture industry, and a component, such a shaped body, such a structural component and a molding compound for producing the shaped body
DE102007038408B4 (en) * 2007-08-14 2011-04-21 Agm Mader Gmbh Process for producing a shaped body, in particular for the construction or furniture industry, and molding compound for producing a shaped body
EP2138288A1 (en) 2008-06-24 2009-12-30 AGM Mader GmbH Mould for the construction or furniture industry, mould assembly and method of manufacturing a mould
DE102008029882A1 (en) 2008-06-24 2010-01-28 Agm Mader Gmbh Shaped body for the construction or furniture industry, molding arrangement and method for producing a shaped body
DE102008029882B4 (en) * 2008-06-24 2010-03-04 Agm Mader Gmbh Shaped body for the construction or furniture industry, molding arrangement and method for producing a shaped body

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Effective date: 20110502