DE29603564U1 - Composite - Google Patents
CompositeInfo
- Publication number
- DE29603564U1 DE29603564U1 DE29603564U DE29603564U DE29603564U1 DE 29603564 U1 DE29603564 U1 DE 29603564U1 DE 29603564 U DE29603564 U DE 29603564U DE 29603564 U DE29603564 U DE 29603564U DE 29603564 U1 DE29603564 U1 DE 29603564U1
- Authority
- DE
- Germany
- Prior art keywords
- composite material
- material according
- scraps
- plates
- plate
- 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.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title claims description 34
- 239000000463 material Substances 0.000 claims description 19
- 239000011230 binding agent Substances 0.000 claims description 12
- 239000011111 cardboard Substances 0.000 claims description 4
- 239000011087 paperboard Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 claims description 2
- 241000233866 Fungi Species 0.000 claims description 2
- 241000238631 Hexapoda Species 0.000 claims description 2
- 239000002761 deinking Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- -1 newspapers Substances 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 1
- 239000013590 bulk material Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 229920002522 Wood fibre Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- 244000198134 Agave sisalana Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 244000299461 Theobroma cacao Species 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000007966 viscous suspension Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE 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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/70—Scrap or recycled material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Glass Compositions (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Description
KERN , BREHM & PARTNERKERN, BREHM & PARTNERS
Karsten Weibrecht Westerndorferstr. 47 G 83024 RosenheimKarsten Weibrecht Westerndorferstr. 47 G 83024 Rosenheim
Wei-8947/GMWei-8947/GM
24. April 199624 April 1996
83024 Rosenheim83024 Rosenheim
Die Erfindung betriffi einen Verbundwerkstoff aus mechanisch aufgeschlossenen, zeflulosehaM-gen Stoffen, die durch Druck- und Wärmeeinwirkung miteinander verbunden werden.The invention relates to a composite material made of mechanically broken down, cellulose-containing materials which are bonded together by the application of pressure and heat.
Ein bekannter Verbundwerkstoff dieser Art (P 45 40 241.9) besteht aus harzgetränktem Fasermaterial, insbesondere Holzfesem, aber auch anderen pflanzlichen, insbesondere langen Fasern, beispielsweise Sisal-, Hanf-, Flachs-, Jute- oder Kakaofesem. Aus diesem bekannten Verbundwerkstoff sollen Trennwände, Sitz- und Raumverkleidungen sowie Abdeckungen von Maschinengehäusen und Verkleidungen für Kraftfährzeuge hergestellt werden, wobei an die dreidimensionale Verformbarkeit sowie Widerstandsfähigkeit des Werkstoffs gegen Stoß und mechanische Beschädigungen und auch seine mechanische Bearbeitbarkeit relativ hohe Anforderungen gestellt werden.A known composite material of this type (P 45 40 241.9) consists of resin-impregnated fiber material, in particular wood fibers, but also other plant fibers, especially long fibers, for example sisal, hemp, flax, jute or cocoa fibers. This known composite material is to be used to make partition walls, seat and room paneling as well as covers for machine housings and paneling for motor vehicles, whereby relatively high demands are placed on the three-dimensional deformability and resistance of the material to impact and mechanical damage as well as its mechanical workability.
Es sind femer Schichtstoffe aus Hartpapier und Harzgewebe bekannt, die sehr gute Festigkeitseigenschaften und günstige elektrische Wert aufweisen, jedoch bezüglich ihrer Verformbarkeit zu wünschen übrig lassen.Furthermore, laminates made of hard paper and resin fabric are known, which have very good strength properties and good electrical values, but leave something to be desired in terms of their deformability.
Des weiteren sind Hartfeserplatten bekannt, die aus geschnitzelten und zu einer zähflüssigen Suspension verarbeiteten Hölzern gewöhnlich minderer Qualität hergestellt werden, denen ein so Bindemittel zugesetzt wird. Derartige Platten sind jedoch relativ feuchtigkeitsertpfindlich undFurthermore, hardboards are known, which are made from wood that has been chipped and processed into a viscous suspension, usually of inferior quality, to which a binding agent is added. However, such boards are relatively sensitive to moisture and
infolge ihrer hohen Dichte auch schwer und daher trotz der weiten Verbreitung, die sie gefimden haben, fur die Verwendung als Bauplatten, insbesondere im Innenbereich, verhältnismäßig unhandlich. Due to their high density, they are also heavy and therefore, despite their widespread use, relatively unwieldy for use as building panels, especially indoors.
Darüber hinaus sind auch noch harzgetränkte Holzfaserplatten bekannt geworden, deren Steifigkeit und Festigkeit jedoch zu wünschen übrig lassen.In addition, resin-impregnated wood fiber boards have also become known, but their rigidity and strength leave much to be desired.
All diesen bekannten Verbundwerkstoffen ist jedoch die Tatsache eigen, daß sie aus zeflulosehaltigen Naturstoffen hergestellt werden, die zu diesem Zwecke mit einem mehr oder weniger großen Kostenaufwand erzeugt werden müssen und deshalb nicht als umweltschonende und ressourcensparende Stoffe zu betrachten sind.However, all of these known composite materials have the common feature that they are made from natural materials containing cellulose, which have to be produced for this purpose at a greater or lesser cost and therefore cannot be considered as environmentally friendly and resource-saving materials.
EHe Aufgabe der Erfindung besteht deshalb darin, einen Verbundwerkstoff zu entwickeln, der im Hinblick auf das gewachsene Umweltbewußtsein aus Stoffen aufgebaut ist, die Wertstoffe im Sinne der gängigen Definition darstellen und die nicht oder in einem weit geringerem Ausmaß die Ressourcen belasten, wobei auch ein Beitrag zur Entlastung der Kreislaufwirtschaft geleistet werden soll, ohne daß der neue Verbundwerkstoff qualitativ hinter den bekannten Werkstoffen der genannten Art zurücksteht.The object of the invention is therefore to develop a composite material which, in view of the increased environmental awareness, is made up of materials which represent valuable materials in the sense of the common definition and which do not burden resources or burden them to a much lesser extent, while also contributing to relieving the burden on the circular economy without the new composite material being inferior in quality to the known materials of the type mentioned.
Diese Aufgabe wird gemäß Anspruch 1 dadurch gelöst, daß die Stoffe aus recycelten Wertstoffen aus wenigstens einem der Materialien wie Wellpappe, Zeitungen, Deinkingware, Endlospapier, Papier und Pappe bestehen, die zu Scraps (Schnitzeln) zerschnitzelt, danach mit einem synthetischen oder organischen Bindemittel zumindest teilweise benetzt und unter Bildung von LufleinschKissen zusammengeschüttet und zu Platten oder Formkörpern verpreßt worden sind.This object is achieved according to claim 1 in that the materials consist of recycled valuable materials from at least one of the materials such as corrugated cardboard, newspapers, deinking goods, continuous paper, paper and cardboard, which have been shredded into scraps, then at least partially wetted with a synthetic or organic binding agent and poured together to form air-filled shred cushions and pressed into plates or molded bodies.
Zur Herstellung eines solchen Verbundwerkstoffes dient ein Verfahren, wonach die recycelten Wertstoffe zu Scraps zerrissen oder zerschnitzelt und danach mit einem synthetischen oder organischen Bindemittel benetzt und zu einem Schüttguthaufen zusammengeschüttet und unter einem Druck von 160 bis 230 bar und einer Temperatur von 100 bis 200 0C zu einer Platte unter Aufrechterhaltung von Lufteinschlüssen verpreßt werden. Dabei haben sich in einer Versuchsanlage ein mittlerer Druck von 180 bar und eine mittlere Temperatur von 160 0C besonders bewährt. A process is used to produce such a composite material, whereby the recycled materials are torn or shredded into scraps and then wetted with a synthetic or organic binding agent and piled up into a bulk material pile and pressed into a plate under a pressure of 160 to 230 bar and a temperature of 100 to 200 ° C while maintaining air inclusions. In a test facility, an average pressure of 180 bar and an average temperature of 160 ° C have proven particularly effective.
Durch diese Maßnahmen wird ein Verbundwerkstoff geschaffen, der im wesentlichen ausschließlich aus recycelten Wertstoffen besteht und dessen Eigenschaften mit denjenigen anderer bekannter Verbundwerkstoffe, insbesondere Spanplatten, vergleichbar sind.These measures create a composite material that consists essentially exclusively of recycled materials and whose properties are comparable to those of other known composite materials, in particular chipboard.
Vorteilhafte Ausführungsmöglichkeiten des eifindungsgemäßen Verbundwerkstoffes werden im folgenden unter Bezugnahme auf die in derAdvantageous design options for the composite material according to the invention are described below with reference to the
MEIS9A7A.DOC . ..···· MEIS9A7A.DOC . ..····
Zeichnung schematisch dargestellten beiden Ausführungsbeispiele plattenförmiger Verbundwerkstoffkörper näher erläutert.The two embodiments of plate-shaped composite material bodies shown schematically in the drawing are explained in more detail.
In der Zeichnung zeigenShow in the drawing
Fig. 1 eine Draufsicht einer Platte des Verbundwerkstoffs,
Fig. 2 eine Querschnittsansicht der Platte von Fig. 1 undFig. 1 is a plan view of a plate of the composite material,
Fig. 2 is a cross-sectional view of the plate of Fig. 1 and
Fig. 3 eine Querschnittsansicht einer aus drei Schichten bzw. einzelnen Platten unterFig. 3 is a cross-sectional view of a three-layer or single-plate structure under
schiedlicher Qualität sandwichartig zusammengebauten Platte ähnlich der von Fig. 1, wobei die Dicke der Einzelpktten kleiner ist als der von Fig. 1.of different quality sandwiched together similar to that in Fig. 1, where the thickness of the individual points is smaller than that in Fig. 1.
Die in den Fig. 1 und 2 gezeigte Platte von im wesentlichen homogener Struktur besteht aus einem recycelten Werkstoff in Form von mit bekannten Apparaten zu Scraps zerschnitzelten Zeitungen, die mit einem synthetischen oder organischen Bindemittel benetzt wurden und zu einem Schüttguthaufen zusammengeschüttet und unter einem Druck von 160 bis 230 bar bei einer Temperatur von 100 bis 200 0C miteinander verpreßt worden sind, wobei die in dem Schüttgut vorhandenen Lufleinschlüsse zumindest teilweise aufrechterhalten wurden. Eine Vorsortierung der Scraps nach Größe war vorgenommen worden ebenso eine Trocknung der zusammengeschütteten Scraps auf eine Restfeuchte von 0,1 bis 10 %.The plate shown in Fig. 1 and 2, which has an essentially homogeneous structure, consists of a recycled material in the form of newspapers shredded into scraps using known equipment, which were wetted with a synthetic or organic binding agent and piled together to form a bulk material pile and pressed together under a pressure of 160 to 230 bar at a temperature of 100 to 200 ° C, whereby the air inclusions present in the bulk material were at least partially retained. The scraps were pre-sorted according to size and the piled-up scraps were dried to a residual moisture content of 0.1 to 10%.
Des weiteren wurden vor ihrer Verpressung Zusatzstoffe in den Schüttguthaufen zwecks Abwehr von Feuchtigkeit, Pilzen, Bakterien, Insekten und dgl eingemischt, und zwar entweder in gasformiger oder flüssiger Form. Wahlweise wurde auch ein gewünschter Farbstoff zugesetzt, um für die fertiggepreßte Platte eine gewünschte Farbgebung zu erzielen.Furthermore, additives were mixed into the bulk material pile before it was pressed in order to ward off moisture, fungi, bacteria, insects, etc., either in gaseous or liquid form. Optionally, a desired dye was also added in order to achieve the desired color for the finished pressed plate.
Die in den Fig. 1 und 2 gezeigte Platte ist aus feinen Scraps aufgebaut und qualitativ hochwertig. Dies wurde dadurch erreicht, daß die Benetzung der Scraps mit Klebstoff in einem Fließbett oderThe plate shown in Fig. 1 and 2 is made of fine scraps and is of high quality. This was achieved by wetting the scraps with adhesive in a fluid bed or
so Wirbelbett erfolgte, in dem durch Düsen das Bindemittel in die Wirbelschicht aus Feststoff undso fluidized bed was carried out in which the binder was injected through nozzles into the fluidized bed of solid and
Luft eingesprüht worden ist und daß die Verpressung der Scraps danach zu Platten gewünschter Größe und Dichte in einer kontinuierlich arbeitenden Kontaktpresse vorgenommen wurde, wobei dafür gesorgt wurde, daß durch die im Schüttgut der Scraps vorhandenen Lufleinschlüsse ein gewünschtes Luftvolumen erhalten blieb, das das spezifische Gewicht bzw. die Dichte der Platte 1 bestimmt.Air was sprayed in and the scraps were then pressed into plates of the desired size and density in a continuously operating contact press, whereby it was ensured that the air inclusions present in the bulk material of the scraps maintained a desired air volume, which determines the specific weight or density of the plate 1.
Darüber hinaus wurde bei der Verpressung der Platte 1 darauf geachtet, daß ihre beiden Oberflächen eine vollständig geschlossene oder überwiegend geschlossene Struktur erhalten, so daß sich der spätere Farbmengenbedarf, falls die Platte, die beispielsweise für den Innenausbau vorgesehen ist, entsprechend angestrichen oder imprägniert werden muß, in Grenzen hält.In addition, when pressing plate 1, care was taken to ensure that its two surfaces had a completely closed or predominantly closed structure, so that the subsequent amount of paint required if the plate, which is intended for interior work, for example, has to be painted or impregnated accordingly, is kept within limits.
Die in Fig. 3 dargestellte Platte 2 ist sandwichartig aus einzelnen übereinanderliegenden Schichten 3,4, 5 oder FJnzelplatten der in den Fig. 1 und 2 mit 1 bezeichneten Art aufgebaut, wobei die einzelnen Platten durch Druckeinwirkung im noch nicht ausgehärteten Zustand des Bindemittels miteinander verbunden worden sind. Zusätzlich wurde auf die miteinander zu verbindenden Oberflächen 6, 7 der einzelnen Platten oder Schichten, die sich bezüglich ihrer Struktur dadurch unterscheiden, daß die beiden äußeren Platten aus feinen Scraps und die innere Platte aus groben Scraps aufgebaut sind, ein Bindemittel aufgetragen.The plate 2 shown in Fig. 3 is constructed in a sandwich-like manner from individual superimposed layers 3, 4, 5 or individual plates of the type designated 1 in Figs. 1 and 2, whereby the individual plates have been connected to one another by the action of pressure in the not yet hardened state of the binding agent. In addition, a binding agent was applied to the surfaces 6, 7 of the individual plates or layers to be connected to one another, which differ in terms of their structure in that the two outer plates are made of fine scraps and the inner plate is made of coarse scraps.
Die aus einer einzelnen Platte 1 oder aus mehreren übereinanderliegenden Platten 3, 4, 5 bestehende Werkstoffplatte bildet einen Verbundwerkstoff, der sich nicht nur leicht verarbeiten läßt, sondern auch ein vergleichsweise geringes Gewicht aufweist bei einer überraschend guten Biegefestigkeit und Steifigkeit. Darüber hinaus zeichnet sich dieser Verbundwerkstoff durch eine relativ hohe Druckfestigkeit sowie gute Wärmeisolierungs- und Schallisolierungseigenschaften aus. Dadurch, daß das Ausgangsmaterial dieses Verbundwerkstoffs aus den genannten recycelten Materialien besteht, ist er auch umweltfreundlich, wobei in Anbetracht der Tatsache, daß allein in Deutschland derzeit jährlich etwa 3 Millionen Tonnen Altpapier anfeilen, die mangels einer anderen Verwertungsmöglichkeit thermisch entsorgt werden müssen, die erfindungsgemäße Art der Verwertung erhebliche Vorteile bietet und damit gesamtwirtschaftlich gesehen zu einer wesentlichen Schonung der Ressourcen beiträgt.The material plate consisting of a single plate 1 or several plates 3, 4, 5 lying on top of one another forms a composite material that is not only easy to process, but also has a comparatively low weight with surprisingly good bending strength and rigidity. In addition, this composite material is characterized by a relatively high compressive strength and good thermal and sound insulation properties. Because the starting material for this composite material consists of the recycled materials mentioned, it is also environmentally friendly, and in view of the fact that in Germany alone around 3 million tons of waste paper are currently filed every year, which have to be thermally disposed of due to a lack of other recycling options, the type of recycling according to the invention offers considerable advantages and thus contributes to a significant conservation of resources from an overall economic perspective.
Claims (17)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29603564U DE29603564U1 (en) | 1996-02-27 | 1996-02-27 | Composite |
| DE19643246A DE19643246A1 (en) | 1996-02-27 | 1996-10-19 | Composite material used for internal structural material etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29603564U DE29603564U1 (en) | 1996-02-27 | 1996-02-27 | Composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29603564U1 true DE29603564U1 (en) | 1996-07-25 |
Family
ID=8020179
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29603564U Expired - Lifetime DE29603564U1 (en) | 1996-02-27 | 1996-02-27 | Composite |
| DE19643246A Withdrawn DE19643246A1 (en) | 1996-02-27 | 1996-10-19 | Composite material used for internal structural material etc. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19643246A Withdrawn DE19643246A1 (en) | 1996-02-27 | 1996-10-19 | Composite material used for internal structural material etc. |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE29603564U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007025063A1 (en) * | 2007-05-29 | 2008-12-04 | Werzalit Gmbh + Co. Kg | Multi-layered composite molded part manufacturing method for press tool, involves pressing upper and lower layers together with inserted molded part e.g. oriented strand board mat, by pressure and temperature effects |
| DE102007028374A1 (en) * | 2007-06-11 | 2008-12-18 | Ava - Anhaltinische Verfahrens- Und Anlagentechnik Gmbh | Process for producing a wood-plastic composite material |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE513336C2 (en) * | 1998-10-14 | 2000-08-28 | Tetra Laval Holdings & Finance | MDF fiber board, methods of making the same, and the use of recycled cellulose fibers for the manufacture of such fiber boards |
| DE102006062285B4 (en) * | 2006-12-22 | 2009-05-28 | Fritz Egger Gmbh & Co. | Fiberboard and process for its production |
| DE102008024155A1 (en) * | 2008-02-28 | 2009-09-03 | Ben Dratz | Process for the production of a molded article from waste paper and / or waste cardboard, shaped article and building part |
| DE102012108446A1 (en) * | 2012-09-11 | 2014-03-13 | Birco Gmbh | Gutter covering useful for drainage gutters, comprises a molded body made of a paper-containing material which is impregnated with plastic |
| US20240165905A1 (en) * | 2022-11-22 | 2024-05-23 | SA29StudioDesigns LLC | Process for the repurposing of corrugated material to create a hard cardboard material |
-
1996
- 1996-02-27 DE DE29603564U patent/DE29603564U1/en not_active Expired - Lifetime
- 1996-10-19 DE DE19643246A patent/DE19643246A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007025063A1 (en) * | 2007-05-29 | 2008-12-04 | Werzalit Gmbh + Co. Kg | Multi-layered composite molded part manufacturing method for press tool, involves pressing upper and lower layers together with inserted molded part e.g. oriented strand board mat, by pressure and temperature effects |
| DE102007025063B4 (en) * | 2007-05-29 | 2009-05-20 | Werzalit Gmbh + Co. Kg | Process for producing a multilayer composite molding |
| DE102007028374A1 (en) * | 2007-06-11 | 2008-12-18 | Ava - Anhaltinische Verfahrens- Und Anlagentechnik Gmbh | Process for producing a wood-plastic composite material |
| DE102007028374B4 (en) * | 2007-06-11 | 2009-04-23 | Ava - Anhaltinische Verfahrens- Und Anlagentechnik Gmbh | Process for producing a wood-plastic composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19643246A1 (en) | 1998-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19960905 |
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| R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: B32B0029000000 Ipc: D21J0001000000 Effective date: 19961030 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 19990720 |
|
| R157 | Lapse of ip right after 6 years |
Effective date: 20020829 |