DE20014859U1 - Multilayer board (OSB) - Google Patents
Multilayer board (OSB)Info
- Publication number
- DE20014859U1 DE20014859U1 DE20014859U DE20014859U DE20014859U1 DE 20014859 U1 DE20014859 U1 DE 20014859U1 DE 20014859 U DE20014859 U DE 20014859U DE 20014859 U DE20014859 U DE 20014859U DE 20014859 U1 DE20014859 U1 DE 20014859U1
- Authority
- DE
- Germany
- Prior art keywords
- multilayer board
- board according
- osb
- wood chips
- bonded
- 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
- 239000002023 wood Substances 0.000 claims description 15
- 235000014466 Douglas bleu Nutrition 0.000 claims description 6
- 241000218683 Pseudotsuga Species 0.000 claims description 6
- 235000005386 Pseudotsuga menziesii var menziesii Nutrition 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 235000018185 Betula X alpestris Nutrition 0.000 claims description 2
- 235000018212 Betula X uliginosa Nutrition 0.000 claims description 2
- 241000219495 Betulaceae Species 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 240000000731 Fagus sylvatica Species 0.000 claims description 2
- 235000010099 Fagus sylvatica Nutrition 0.000 claims description 2
- 241000218657 Picea Species 0.000 claims description 2
- 241000219000 Populus Species 0.000 claims description 2
- 235000014443 Pyrus communis Nutrition 0.000 claims description 2
- 240000001987 Pyrus communis Species 0.000 claims description 2
- 244000100205 Robinia Species 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- 240000006909 Tilia x europaea Species 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims 2
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 claims 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 244000309464 bull Species 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 241000294754 Macroptilium atropurpureum Species 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 101150112468 OR51E2 gene Proteins 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000010998 test method Methods 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
-
- 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
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
-
- 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
- B32B2317/00—Animal or vegetable based
- B32B2317/16—Wood, e.g. woodboard, fibreboard, woodchips
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Description
Your letter ofYour letter
Your letter of
RA - Rechtsanwih/Attomey at Law
• - European Patent Attorney
&Lgr; - Brandenburg, zugelassen am OLG Brandenburg
D - Maiire cn Dmit
Alle zugelassen zur Vertretung vor dem Europäischen MaAenamt, Alicante
Professional Representation at the Commumly Trademark Office. AlkanePA - Pulent Attorney/Patent Altorney
RA - Rechtsanwih/Attomey at Law
• - European Patent Attorney
&Lgr; - Brandenburg, admitted to the Higher Regional Court of Brandenburg
D - Maiire cn Dmit
All admitted to represent before the European Office of Lawyers, Alicante
Professional Representation at the Commonly Trademark Office. Alkanes
Your ref.Your sign
Your ref.
Our ref.Our sign
Our ref.
(Gebrauchsmuster)New registration
(utility model)
Enno Roggemann GmbH & Co. KG, Steinweg 16, 16352 Basdorf
Mehrschichtplatte (OSB)Enno Roggemann GmbH & Co. KG, Steinweg 16, 16352 Basdorf
Multilayer board (OSB)
Die Erfindung betrifft eine Mehrschichtplatte mit mindestens zwei Außenschichten aus langen, schlanken, ausgerichteten Holzspänen mit vorbestimmter Form und Dicke und mit einem Bindemittel (Oriented Strand Board, OSB).The invention relates to a multilayer board with at least two outer layers made of long, slender, aligned wood chips with a predetermined shape and thickness and with a binding agent (Oriented Strand Board, OSB).
Gattungsgemäße Mehrschichtplatten, auf die nachfolgend als OSB Bezug genommen wird, sind allgemein bekannt und insbesondere in der europäischen Norm EN 300 beschrieben und hinsichtlich unterschiedlicher (Mindest-)Eigenschaften festgelegt.Generic multilayer boards, hereinafter referred to as OSB, are generally known and are described in particular in the European standard EN 300 and specified in terms of different (minimum) properties.
Bekannte OSB weisen den Nachteil auf, daß sie aufgrund der Verleimung mit Bindemitteln auf der Basis von bspw. Phenolharz, Melamin, Harnstoff-Harz und formaldehydhaltigen Harzen (z.B. „MUPF-Verleimung") Schadstoffe wie Formaldehyd und sonstige organische Ver-Known OSBs have the disadvantage that they contain harmful substances such as formaldehyde and other organic compounds due to the gluing with binding agents based on phenolic resin, melamine, urea resin and formaldehyde-containing resins (e.g. "MUPF gluing").
Hollerallee 32 · D-28209 Bremen · P.O.B. 10 71 27 · D-28071 Bremen · Telephon +49-421-34090 ■ Telefax +49-421-3491768Hollerallee 32 · D-28209 Bremen · P.O.B. 10 71 27 · D-28071 Bremen · Telephone +49-421-34090 ■ Fax +49-421-3491768
«-muH .UL- t ! fZ «-muH .UL- t ! fZ
- HÖHENKIRCHEN - ALICANTE- HIGH CHURCHES - ALICANTE
mm , «-muH .UL- t ! fZ mm , «-muH .UL- t ! fZ
MÜNCHEN - BREMEN - BERLIN - DUSSBLDeRV-VRANHFURy-JlEtEiELO - &Rgr;&Ogr;&idiagr;&idigr;&udigr;&Agr;&idiagr;. &Bgr;&Kgr;&Agr;&Ngr;&Ogr;&bgr;&Ngr;&Bgr;&Bgr;&Igr;&Igr;&Ogr; -%&psgr;&Igr;- - PApERgORlt-MUNICH - BREMEN - BERLIN - DUSSBLDeRV-VRANHFURy-JlEtEiELO - &Rgr;&Ogr;&idiagr;&idigr;&udigr;&Agr;&idiagr;. &Bgr;&Kgr;&Agr;&Ngr;&Ogr;&bgr;&Ngr;&Bgr;&Bgr;&Igr;&Igr;&Ogr;-%&psgr;&Igr;- -PApERgORlt-
• •http^wwwljQeJifhftffde* 1. . e-mail»pos*master@boehnftttde***••http^wwwljQeJifhftffde* 1. . e-mail»pos*master@boehnftttde***
e-mail»pos*[email protected]*e-mail»pos*[email protected]*
-2--2-
bindungen einschließlich kondensierbarer Bestandteile abgeben. Dies ist insbesondere bei Verwendung von OSB im Kraftfahrzeugbereich aufgrund der relativ kleinen Innenräume von Kraftfahrzeugen ein Problem, wobei sich dort relativ schnell Schadstoffkonzentrationen bilden, die oberhalb festgelegter Grenzwerte liegen. Dazu kommt häufig die Abgabe unangenehm riechender Bestandteile.compounds including condensable components. This is a problem especially when OSB is used in the automotive sector due to the relatively small interior spaces of motor vehicles, where pollutant concentrations that exceed specified limits can build up relatively quickly. In addition, unpleasant-smelling components are often released.
Die Aufgabe der Erfindung besteht darin, eine gattungsgemäße Mehrschichtplatte dahingehend zu verbessern, daß die Abgabe von Schadstoffen bzw. unangenehm riechender Stoffe deutlich reduziert wird.The object of the invention is to improve a generic multilayer board in such a way that the release of pollutants or unpleasant smelling substances is significantly reduced.
Diese Aufgabe wird erfindungsgemäß durch eine Mehrschichtplatte mit mindestens zwei Außenschichten aus langen, schlanken, ausgerichteten Holzspänen mit vorbestimmter Form und Dicke und mit einem Bindemittel (Oriented Strand Board, OSB) gelöst, die sich dadurch auszeichnet, daß die Holzspäne aus einer oder mehreren der folgenden Holzarten bestehen: Douglasie, Linde, Pappel, Fichte, Tanne, Erle, Birke, Rüster, Esche, Buche, Birnbaum, Robinie. This object is achieved according to the invention by a multilayer board with at least two outer layers of long, slender, aligned wood chips with a predetermined shape and thickness and with a binding agent (Oriented Strand Board, OSB), which is characterized in that the wood chips consist of one or more of the following types of wood: Douglas fir, lime, poplar, spruce, fir, alder, birch, elm, ash, beech, pear, robinia.
Es wurde überraschenderweise erkannt, daß sich bei Verwendung von holzinhaltsstoffarmen, insbesondere harzarmen Holzarten, wie sie die vorgenannten Holzarten darstellen, die Abgabe von Schadstoffen und sonstigen geruchsintensiven störenden Stoffen sehr stark reduzieren läßt.Surprisingly, it was discovered that the use of wood species that are low in wood constituents, particularly those that are low in resin, such as the aforementioned wood species, can greatly reduce the release of pollutants and other odorous, disruptive substances.
Vorzugsweise ist vorgesehen, daß die Mehrschichtplatte zwei Außenschichten und mindestens eine mittlere Schicht aufweist. Hierbei ist bevorzugt vorgesehen, daß die mindestens eine mittlere Schicht mit Isocyanat (PMDI) gebunden ist. Dabei sind die Außenschichten zweckmäßigerweise mit Phenolharz gebunden.Preferably, the multilayer board has two outer layers and at least one middle layer. Preferably, the at least one middle layer is bonded with isocyanate (PMDI). The outer layers are expediently bonded with phenolic resin.
In einer besonders bevorzugten Ausführungsform sind sämtliche Schichten mit Isocyanat (PMDI) gebunden, wobei allerdings ein Trennmittel eingesetzt werden muß, damit die PlatteIn a particularly preferred embodiment, all layers are bonded with isocyanate (PMDI), although a release agent must be used so that the plate
JJ JJJ J
-3--3-
nach dem Preßvorgang von den Preßblechen getrennt werden kann. Hierfür kommt bspw. eine Folie, ein Flies oder andere Trennschichten in Betracht.can be separated from the press plates after the pressing process. A film, fleece or other separating layers can be used for this.
Es kann vorgesehen sein, daß die Holzspäne zu mindestens 50%, bevorzugt zu mindestens 80% und weiter bevorzugt zu mindestens 90% aus Douglasie bestehen. Hervorragende Ergebnisse werden erzielt, wenn die Holzspäne im wesentlichen ausschließlich aus Douglasie bestehen.It can be provided that the wood chips consist of at least 50%, preferably at least 80% and more preferably at least 90% Douglas fir. Excellent results are achieved if the wood chips consist essentially exclusively of Douglas fir.
Durch Verwendung der genannten Holzarten und eines der genannten Bindemittel (anstelle der ansonsten weit verbreiteten MUPF-Verleimung) werden über die in der genannten europäischen Norm EN 300 genannten Mindestwerte folgende Grenzwerte eingehalten oder unterschritten. By using the above-mentioned wood species and one of the above-mentioned binding agents (instead of the otherwise widely used MUPF gluing), the following limit values are met or exceeded, in addition to the minimum values specified in the above-mentioned European standard EN 300.
In Bezug auf Formaldehyd wird bei Prüfung nach Flaschenmethode ein Wert von 10 mg/1000 g atro (absolut trocken) erreicht oder unterschritten, während die EN 300 lediglich einen Grenzwert von 8 mg/100 g artro vorschreibt.With regard to formaldehyde, a value of 10 mg/1000 g atro (absolutely dry) is reached or exceeded when testing using the bottle method, while EN 300 only prescribes a limit of 8 mg/100 g artro.
In Bezug auf den sogenannten Head-Space (Bestimmung der Emission organischer Verbindungen) wird ein Grenzwert von 50 pgC/g eingehalten bzw. unterschritten.With regard to the so-called head space (determination of the emission of organic compounds), a limit value of 50 pgC/g is met or exceeded.
In Bezug auf das sogenannte Fogging (Bestimmung kondensierbarer Bestandteile) wird ein Grenzwert von 2 mg eingehalten bzw. unterschritten.With regard to so-called fogging (determination of condensable components), a limit value of 2 mg is met or exceeded.
Bei der Geruchsprüfung wird eine Note von 3,0 oder besser erzielt.The odor test achieves a score of 3.0 or better.
Die für die Bestimmung der vorgenannten Schadstoffe und Grenzwerte verwendeten Prüfmethoden sind bei Automobilherstellern in eigenen Prüfvorschriften vorgeschrieben oder im Regelwerk VDA (Verband der Automobilindustrie) enthalten. Beispielhaft sei auf die DIN 75201 betreffend die Bestimmung des Fogging-Verhaltene von Werkstoffen der Kraftfahrzeug-Innenausstattung und auf eine entsprechende interne Norm der Volkswagen AG (VW 50180) verwiesen.The test methods used to determine the above-mentioned pollutants and limit values are prescribed by automobile manufacturers in their own test regulations or are included in the VDA (Association of the Automotive Industry) regulations. For example, reference is made to DIN 75201 concerning the determination of the fogging behavior of materials used in vehicle interiors and to a corresponding internal standard of Volkswagen AG (VW 50180).
. ^AHMEUr L· 0OEHMER.T
-4-. ^AHMEUr L· 0OEHMER.T
-4-
Die erfindungsgemäßen Mehrschichtplatten können den jeweiligen technischen Erfordernissen angepaßt werden, so daß geforderte Emissionswerte auf jeden Fall eingehalten werden, die technischen Daten im einzelnen allerdings durchaus entsprechen den Erfordernissen des jeweiligen Einsatzzwecks von den in der EN 300 genannten Werten abweichen können. So können bspw. die Mindestrohdichte und/oder die in der genannten Norm erwähnten Festigkeitswerte und Querzugwerte unterschritten werden. Die erfindungsgemäße Mehrschichtplatte ist daher nicht zwangsläufig mit einer genormten Kategorie, wie z.B. OSB/2, OSB/3 oder OSB/4 kompatibel.The multilayer boards according to the invention can be adapted to the respective technical requirements so that the required emission values are always met, although the technical data in detail may differ from the values specified in EN 300 depending on the requirements of the respective application. For example, the minimum bulk density and/or the strength and transverse tensile values mentioned in the standard mentioned may be undercut. The multilayer board according to the invention is therefore not necessarily compatible with a standardized category, such as OSB/2, OSB/3 or OSB/4.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20014859U DE20014859U1 (en) | 2000-08-28 | 2000-08-28 | Multilayer board (OSB) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20014859U DE20014859U1 (en) | 2000-08-28 | 2000-08-28 | Multilayer board (OSB) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20014859U1 true DE20014859U1 (en) | 2000-11-30 |
Family
ID=7945750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20014859U Expired - Lifetime DE20014859U1 (en) | 2000-08-28 | 2000-08-28 | Multilayer board (OSB) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE20014859U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005000982A1 (en) * | 2003-06-30 | 2005-01-06 | Dsm Ip Assets B.V. | Oriented strand boards |
| EP1527859A1 (en) * | 2003-10-28 | 2005-05-04 | Fritz Egger GmbH & Co | Osb-board |
| DE102017117917A1 (en) * | 2017-08-07 | 2019-02-07 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method for producing a material plate and material plate |
-
2000
- 2000-08-28 DE DE20014859U patent/DE20014859U1/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005000982A1 (en) * | 2003-06-30 | 2005-01-06 | Dsm Ip Assets B.V. | Oriented strand boards |
| EA009100B1 (en) * | 2003-06-30 | 2007-10-26 | ДСМ Ай Пи ЭССЕТС Б.В. | Oriented strand boards |
| US7422787B2 (en) | 2003-06-30 | 2008-09-09 | Dsm Ip Assets B.V. | Oriented strand boards |
| EP2014731A1 (en) * | 2003-06-30 | 2009-01-14 | DSMIP Assets B.V. | Oriented strand boards |
| EA013322B1 (en) * | 2003-06-30 | 2010-04-30 | ДСМ Ай Пи ЭССЕТС Б.В. | Oriented strand boards and a process for preparation thereof |
| EP1527859A1 (en) * | 2003-10-28 | 2005-05-04 | Fritz Egger GmbH & Co | Osb-board |
| WO2005042218A1 (en) * | 2003-10-28 | 2005-05-12 | Fritz Egger Gmbh & Co. | Osb panel |
| DE102017117917A1 (en) * | 2017-08-07 | 2019-02-07 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method for producing a material plate and material plate |
| DE102017117917B4 (en) | 2017-08-07 | 2022-07-21 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Process for producing a material panel and material panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102007017503B3 (en) | Method for producing a component with a printed real wood surface and component produced by the method | |
| EP0346864B1 (en) | Production method for multi-layered fibre boards | |
| WO2000053380A1 (en) | Method of producing panel-shaped products | |
| EP0012169B1 (en) | Multi-layered, mainly aminoplast-bound particle or fibre board | |
| DE102009023643B4 (en) | Wood-based product and process for its preparation | |
| DE3933279C1 (en) | ||
| DE20014859U1 (en) | Multilayer board (OSB) | |
| EP0372404A2 (en) | Process for preparing a composite structure | |
| DE4020969C1 (en) | Moulding with improved mechanical properties and density - comprises mixt. of wood or cellulose material shavings and potato pulp, waste paper and binder | |
| EP0573039A1 (en) | Fibre mats containing a binding agent made from cellulosic and ligno-cellulosic fibres | |
| DE102007055415B9 (en) | Method for reducing the emission of saturated and unsaturated aldehydes from wood-based materials | |
| EP2439031A1 (en) | Use of popcorn for wood and compound materials | |
| DE10049050A1 (en) | Oriented strand board with a shavings core and long chip outer layers, are obtained inexpensively with high bending modulus by using specified particle geometrical composition, core shavings content and pressure profile | |
| DE60304032T2 (en) | FURNITURE CHIPBOARD | |
| DE19909607A1 (en) | Process for the production of plate-shaped products | |
| EP0921054A1 (en) | Interior equipment panel for vehicles and method for manufacturing the same | |
| DE2306771A1 (en) | Chipboard with several resin-bonded layers - with cover layers bonded by weakly alkaline phenolic resin | |
| EP1886805B1 (en) | Composite wood board | |
| DE3730776A1 (en) | IMPROVED MULTILAYER SPANNING PLATES AND THEIR MANUFACTURE | |
| DE9209289U1 (en) | Moisture-resistant, biologically resistant chipboard | |
| EP1527859B1 (en) | Osb-board | |
| DE10000490A1 (en) | Method of improving fire resistance and thermal insulating properties of organic materials by whole or partial carbonization. | |
| DE19640090A1 (en) | Furniture front panel | |
| DE1453397A1 (en) | Wood-based molded body | |
| DE2327309A1 (en) | Pressed chipboard contains ground tyre waste - acting as binding agent and giving uniform density throughout |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20010104 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20030918 |
|
| R081 | Change of applicant/patentee |
Owner name: FITZE, HERBERT, DE Free format text: FORMER OWNER: ENNO ROGGEMANN GMBH & CO. KG, 16352 BASDORF, DE Effective date: 20070104 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20070104 |
|
| R158 | Lapse of ip right after 8 years |
Effective date: 20090303 |